Package org.apache.calcite.prepare

Class QueryableRelBuilder<T>

java.lang.Object

org.apache.calcite.prepare.QueryableRelBuilder<T>

Type Parameters:

T - Element type

All Implemented Interfaces:

QueryableFactory<T>

class QueryableRelBuilder<T>
extends java.lang.Object
implements QueryableFactory<T>

Implementation of QueryableFactory that builds a tree of RelNode planner nodes. Used by LixToRelTranslator.

Each of the methods that implements a Replayer method creates a tree of RelNodes equivalent to the arguments, and calls setRel(org.apache.calcite.rel.RelNode) to assign the root of that tree to the rel member variable.

To comply with the QueryableFactory interface, which is after all a factory, each method returns a dummy result such as null or 0. The caller will not use the result. The real effect of the method is to call setRel(org.apache.calcite.rel.RelNode) with a RelNode.

NOTE: Many methods currently throw UnsupportedOperationException. These method need to be implemented.

Field Summary

Fields

Modifier and Type	Field	Description
private RelNode	rel
private LixToRelTranslator	translator

Constructor Summary

Constructors

Constructor	Description
QueryableRelBuilder(LixToRelTranslator translator)

Method Summary

Modifier and Type	Method	Description
T	aggregate(Queryable<T> source, FunctionExpression<Function2<T,T,T>> selector)	Applies an accumulator function over a sequence.
<TAccumulate> TAccumulate	aggregate(Queryable<T> source, TAccumulate seed, FunctionExpression<Function2<TAccumulate,T,TAccumulate>> selector)	Applies an accumulator function over a sequence.
<TAccumulate,TResult> TResult	aggregate(Queryable<T> source, TAccumulate seed, FunctionExpression<Function2<TAccumulate,T,TAccumulate>> func, FunctionExpression<Function1<TAccumulate,TResult>> selector)	Applies an accumulator function over a sequence.
boolean	all(Queryable<T> source, FunctionExpression<Predicate1<T>> predicate)	Determines whether all the elements of a sequence satisfy a condition.
boolean	any(Queryable<T> source)	Determines whether a sequence contains any elements.
boolean	any(Queryable<T> source, FunctionExpression<Predicate1<T>> predicate)	Determines whether any element of a sequence satisfies a condition.
java.math.BigDecimal	averageBigDecimal(Queryable<T> source, FunctionExpression<BigDecimalFunction1<T>> selector)	Computes the average of a sequence of Decimal values that is obtained by invoking a projection function on each element of the input sequence.
double	averageDouble(Queryable<T> source, FunctionExpression<DoubleFunction1<T>> selector)	Computes the average of a sequence of Double values that is obtained by invoking a projection function on each element of the input sequence.
float	averageFloat(Queryable<T> source, FunctionExpression<FloatFunction1<T>> selector)	Computes the average of a sequence of Float values that is obtained by invoking a projection function on each element of the input sequence.
int	averageInteger(Queryable<T> source, FunctionExpression<IntegerFunction1<T>> selector)	Computes the average of a sequence of int values that is obtained by invoking a projection function on each element of the input sequence.
long	averageLong(Queryable<T> source, FunctionExpression<LongFunction1<T>> selector)	Computes the average of a sequence of long values that is obtained by invoking a projection function on each element of the input sequence.
java.math.BigDecimal	averageNullableBigDecimal(Queryable<T> source, FunctionExpression<NullableBigDecimalFunction1<T>> selector)	Computes the average of a sequence of nullable Decimal values that is obtained by invoking a projection function on each element of the input sequence.
java.lang.Double	averageNullableDouble(Queryable<T> source, FunctionExpression<NullableDoubleFunction1<T>> selector)	Computes the average of a sequence of nullable Double values that is obtained by invoking a projection function on each element of the input sequence.
java.lang.Float	averageNullableFloat(Queryable<T> source, FunctionExpression<NullableFloatFunction1<T>> selector)	Computes the average of a sequence of nullable Float values that is obtained by invoking a projection function on each element of the input sequence.
java.lang.Integer	averageNullableInteger(Queryable<T> source, FunctionExpression<NullableIntegerFunction1<T>> selector)	Computes the average of a sequence of nullable int values that is obtained by invoking a projection function on each element of the input sequence.
java.lang.Long	averageNullableLong(Queryable<T> source, FunctionExpression<NullableLongFunction1<T>> selector)	Computes the average of a sequence of nullable long values that is obtained by invoking a projection function on each element of the input sequence.
<T2> Queryable<T2>	cast(Queryable<T> source, java.lang.Class<T2> clazz)
Queryable<T>	concat(Queryable<T> source, Enumerable<T> source2)	Concatenates two sequences.
boolean	contains(Queryable<T> source, T element)	Determines whether a sequence contains a specified element by using the default equality comparer.
boolean	contains(Queryable<T> source, T element, EqualityComparer<T> comparer)	Determines whether a sequence contains a specified element by using a specified EqualityComparer<T>.
int	count(Queryable<T> source)	Returns the number of elements in a sequence.
int	count(Queryable<T> source, FunctionExpression<Predicate1<T>> predicate)	Returns the number of elements in the specified sequence that satisfies a condition.
Queryable<T>	defaultIfEmpty(Queryable<T> source)	Returns the elements of the specified sequence or the type parameter's default value in a singleton collection if the sequence is empty.
Queryable<T>	defaultIfEmpty(Queryable<T> source, T value)	Returns the elements of the specified sequence or the specified value in a singleton collection if the sequence is empty.
Queryable<T>	distinct(Queryable<T> source)	Returns distinct elements from a sequence by using the default equality comparer to compare values.
Queryable<T>	distinct(Queryable<T> source, EqualityComparer<T> comparer)	Returns distinct elements from a sequence by using a specified EqualityComparer<T> to compare values.
T	elementAt(Queryable<T> source, int index)	Returns the element at a specified index in a sequence.
T	elementAtOrDefault(Queryable<T> source, int index)	Returns the element at a specified index in a sequence or a default value if the index is out of range.
Queryable<T>	except(Queryable<T> source, Enumerable<T> enumerable)	Produces the set difference of two sequences by using the default equality comparer to compare values.
Queryable<T>	except(Queryable<T> source, Enumerable<T> enumerable, EqualityComparer<T> tEqualityComparer)	Produces the set difference of two sequences by using the specified EqualityComparer<T> to compare values.
T	first(Queryable<T> source)	Returns the first element of a sequence.
T	first(Queryable<T> source, FunctionExpression<Predicate1<T>> predicate)	Returns the first element of a sequence that satisfies a specified condition.
T	firstOrDefault(Queryable<T> source)	Returns the first element of a sequence, or a default value if the sequence contains no elements.
T	firstOrDefault(Queryable<T> source, FunctionExpression<Predicate1<T>> predicate)	Returns the first element of a sequence that satisfies a specified condition or a default value if no such element is found.
<TKey> Queryable<Grouping<TKey,T>>	groupBy(Queryable<T> source, FunctionExpression<Function1<T,TKey>> keySelector)	Groups the elements of a sequence according to a specified key selector function.
<TKey> Queryable<Grouping<TKey,T>>	groupBy(Queryable<T> source, FunctionExpression<Function1<T,TKey>> keySelector, EqualityComparer<TKey> comparer)	Groups the elements of a sequence according to a specified key selector function and compares the keys by using a specified comparer.
<TKey,TElement> Queryable<Grouping<TKey,TElement>>	groupBy(Queryable<T> source, FunctionExpression<Function1<T,TKey>> keySelector, FunctionExpression<Function1<T,TElement>> elementSelector)	Groups the elements of a sequence according to a specified key selector function and projects the elements for each group by using a specified function.
<TKey,TElement> Queryable<Grouping<TKey,TElement>>	groupBy(Queryable<T> source, FunctionExpression<Function1<T,TKey>> keySelector, FunctionExpression<Function1<T,TElement>> elementSelector, EqualityComparer<TKey> comparer)	Groups the elements of a sequence and projects the elements for each group by using a specified function.
<TKey,TElement,TResult> Queryable<TResult>	groupBy(Queryable<T> source, FunctionExpression<Function1<T,TKey>> keySelector, FunctionExpression<Function1<T,TElement>> elementSelector, FunctionExpression<Function2<TKey,Enumerable<TElement>,TResult>> resultSelector)	Groups the elements of a sequence according to a specified key selector function and creates a result value from each group and its key.
<TKey,TElement,TResult> Queryable<TResult>	groupBy(Queryable<T> source, FunctionExpression<Function1<T,TKey>> keySelector, FunctionExpression<Function1<T,TElement>> elementSelector, FunctionExpression<Function2<TKey,Enumerable<TElement>,TResult>> resultSelector, EqualityComparer<TKey> comparer)	Groups the elements of a sequence according to a specified key selector function and creates a result value from each group and its key.
<TKey,TResult> Queryable<TResult>	groupByK(Queryable<T> source, FunctionExpression<Function1<T,TKey>> keySelector, FunctionExpression<Function2<TKey,Enumerable<T>,TResult>> resultSelector)	Groups the elements of a sequence according to a specified key selector function and creates a result value from each group and its key.
<TKey,TResult> Queryable<TResult>	groupByK(Queryable<T> source, FunctionExpression<Function1<T,TKey>> keySelector, FunctionExpression<Function2<TKey,Enumerable<T>,TResult>> elementSelector, EqualityComparer<TKey> comparer)	Groups the elements of a sequence according to a specified key selector function and creates a result value from each group and its key.
<TInner,TKey,TResult> Queryable<TResult>	groupJoin(Queryable<T> source, Enumerable<TInner> inner, FunctionExpression<Function1<T,TKey>> outerKeySelector, FunctionExpression<Function1<TInner,TKey>> innerKeySelector, FunctionExpression<Function2<T,Enumerable<TInner>,TResult>> resultSelector)	Correlates the elements of two sequences based on key equality and groups the results.
<TInner,TKey,TResult> Queryable<TResult>	groupJoin(Queryable<T> source, Enumerable<TInner> inner, FunctionExpression<Function1<T,TKey>> outerKeySelector, FunctionExpression<Function1<TInner,TKey>> innerKeySelector, FunctionExpression<Function2<T,Enumerable<TInner>,TResult>> resultSelector, EqualityComparer<TKey> comparer)	Correlates the elements of two sequences based on key equality and groups the results.
Queryable<T>	intersect(Queryable<T> source, Enumerable<T> enumerable)	Produces the set intersection of two sequences by using the default equality comparer to compare values.
Queryable<T>	intersect(Queryable<T> source, Enumerable<T> enumerable, EqualityComparer<T> tEqualityComparer)	Produces the set intersection of two sequences by using the specified EqualityComparer to compare values.
<TInner,TKey,TResult> Queryable<TResult>	join(Queryable<T> source, Enumerable<TInner> inner, FunctionExpression<Function1<T,TKey>> outerKeySelector, FunctionExpression<Function1<TInner,TKey>> innerKeySelector, FunctionExpression<Function2<T,TInner,TResult>> resultSelector)	Correlates the elements of two sequences based on matching keys.
<TInner,TKey,TResult> Queryable<TResult>	join(Queryable<T> source, Enumerable<TInner> inner, FunctionExpression<Function1<T,TKey>> outerKeySelector, FunctionExpression<Function1<TInner,TKey>> innerKeySelector, FunctionExpression<Function2<T,TInner,TResult>> resultSelector, EqualityComparer<TKey> comparer)	Correlates the elements of two sequences based on matching keys.
T	last(Queryable<T> source)	Returns the last element in a sequence.
T	last(Queryable<T> source, FunctionExpression<Predicate1<T>> predicate)	Returns the last element of a sequence that satisfies a specified condition.
T	lastOrDefault(Queryable<T> source)	Returns the last element in a sequence, or a default value if the sequence contains no elements.
T	lastOrDefault(Queryable<T> source, FunctionExpression<Predicate1<T>> predicate)	Returns the last element of a sequence that satisfies a condition or a default value if no such element is found.
long	longCount(Queryable<T> source)	Returns an long that represents the total number of elements in a sequence.
long	longCount(Queryable<T> source, FunctionExpression<Predicate1<T>> predicate)	Returns an long that represents the number of elements in a sequence that satisfy a condition.
T	max(Queryable<T> source)	Returns the maximum value in a generic IQueryable<T>.
<TResult extends java.lang.Comparable<TResult>> TResult	max(Queryable<T> source, FunctionExpression<Function1<T,TResult>> selector)	Invokes a projection function on each element of a generic IQueryable<T> and returns the maximum resulting value.
T	min(Queryable<T> source)	Returns the minimum value in a generic IQueryable<T>.
<TResult extends java.lang.Comparable<TResult>> TResult	min(Queryable<T> source, FunctionExpression<Function1<T,TResult>> selector)	Invokes a projection function on each element of a generic IQueryable<T> and returns the minimum resulting value.
<TResult> Queryable<TResult>	ofType(Queryable<T> source, java.lang.Class<TResult> clazz)	Filters the elements of an IQueryable based on a specified type.
<TKey extends java.lang.Comparable> OrderedQueryable<T>	orderBy(Queryable<T> source, FunctionExpression<Function1<T,TKey>> keySelector)	Sorts the elements of a sequence in ascending order according to a key.
<TKey> OrderedQueryable<T>	orderBy(Queryable<T> source, FunctionExpression<Function1<T,TKey>> keySelector, java.util.Comparator<TKey> comparator)	Sorts the elements of a sequence in ascending order by using a specified comparer.
<TKey extends java.lang.Comparable> OrderedQueryable<T>	orderByDescending(Queryable<T> source, FunctionExpression<Function1<T,TKey>> keySelector)	Sorts the elements of a sequence in descending order according to a key.
<TKey> OrderedQueryable<T>	orderByDescending(Queryable<T> source, FunctionExpression<Function1<T,TKey>> keySelector, java.util.Comparator<TKey> comparator)	Sorts the elements of a sequence in descending order by using a specified comparer.
Queryable<T>	reverse(Queryable<T> source)	Inverts the order of the elements in a sequence.
<TResult> Queryable<TResult>	select(Queryable<T> source, FunctionExpression<Function1<T,TResult>> selector)	Projects each element of a sequence into a new form.
<TResult> Queryable<TResult>	selectMany(Queryable<T> source, FunctionExpression<Function1<T,Enumerable<TResult>>> selector)	Projects each element of a sequence to an Enumerable<T> and combines the resulting sequences into one sequence.
<TCollection,TResult> Queryable<TResult>	selectMany(Queryable<T> source, FunctionExpression<Function2<T,java.lang.Integer,Enumerable<TCollection>>> collectionSelector, FunctionExpression<Function2<T,TCollection,TResult>> resultSelector)	Projects each element of a sequence to an Enumerable<T> that incorporates the index of the source element that produced it.
<TCollection,TResult> Queryable<TResult>	selectManyN(Queryable<T> source, FunctionExpression<Function1<T,Enumerable<TCollection>>> collectionSelector, FunctionExpression<Function2<T,TCollection,TResult>> resultSelector)	Projects each element of a sequence to an Enumerable<T> and invokes a result selector function on each element therein.
<TResult> Queryable<TResult>	selectManyN(Queryable<T> source, FunctionExpression<Function2<T,java.lang.Integer,Enumerable<TResult>>> selector)	Projects each element of a sequence to an Enumerable<T> and combines the resulting sequences into one sequence.
<TResult> Queryable<TResult>	selectN(Queryable<T> source, FunctionExpression<Function2<T,java.lang.Integer,TResult>> selector)	Projects each element of a sequence into a new form by incorporating the element's index.
boolean	sequenceEqual(Queryable<T> source, Enumerable<T> enumerable)	Determines whether two sequences are equal by using the default equality comparer to compare elements.
boolean	sequenceEqual(Queryable<T> source, Enumerable<T> enumerable, EqualityComparer<T> tEqualityComparer)	Determines whether two sequences are equal by using a specified EqualityComparer to compare elements.
private void	setRel(RelNode rel)	Sets the output of this event.
T	single(Queryable<T> source)	Returns the only element of a sequence, and throws an exception if there is not exactly one element in the sequence.
T	single(Queryable<T> source, FunctionExpression<Predicate1<T>> predicate)	Returns the only element of a sequence that satisfies a specified condition, and throws an exception if more than one such element exists.
T	singleOrDefault(Queryable<T> source)	Returns the only element of a sequence, or a default value if the sequence is empty; this method throws an exception if there is more than one element in the sequence.
T	singleOrDefault(Queryable<T> source, FunctionExpression<Predicate1<T>> predicate)	Returns the only element of a sequence that satisfies a specified condition or a default value if no such element exists; this method throws an exception if more than one element satisfies the condition.
Queryable<T>	skip(Queryable<T> source, int count)	Bypasses a specified number of elements in a sequence and then returns the remaining elements.
Queryable<T>	skipWhile(Queryable<T> source, FunctionExpression<Predicate1<T>> predicate)	Bypasses elements in a sequence as long as a specified condition is true and then returns the remaining elements.
Queryable<T>	skipWhileN(Queryable<T> source, FunctionExpression<Predicate2<T,java.lang.Integer>> predicate)	Bypasses elements in a sequence as long as a specified condition is true and then returns the remaining elements.
java.math.BigDecimal	sumBigDecimal(Queryable<T> source, FunctionExpression<BigDecimalFunction1<T>> selector)	Computes the sum of the sequence of Decimal values that is obtained by invoking a projection function on each element of the input sequence.
double	sumDouble(Queryable<T> source, FunctionExpression<DoubleFunction1<T>> selector)	Computes the sum of the sequence of Double values that is obtained by invoking a projection function on each element of the input sequence.
float	sumFloat(Queryable<T> source, FunctionExpression<FloatFunction1<T>> selector)	Computes the sum of the sequence of Float values that is obtained by invoking a projection function on each element of the input sequence.
int	sumInteger(Queryable<T> source, FunctionExpression<IntegerFunction1<T>> selector)	Computes the sum of the sequence of int values that is obtained by invoking a projection function on each element of the input sequence.
long	sumLong(Queryable<T> source, FunctionExpression<LongFunction1<T>> selector)	Computes the sum of the sequence of long values that is obtained by invoking a projection function on each element of the input sequence.
java.math.BigDecimal	sumNullableBigDecimal(Queryable<T> source, FunctionExpression<NullableBigDecimalFunction1<T>> selector)	Computes the sum of the sequence of nullable Decimal values that is obtained by invoking a projection function on each element of the input sequence.
java.lang.Double	sumNullableDouble(Queryable<T> source, FunctionExpression<NullableDoubleFunction1<T>> selector)	Computes the sum of the sequence of nullable Double values that is obtained by invoking a projection function on each element of the input sequence.
java.lang.Float	sumNullableFloat(Queryable<T> source, FunctionExpression<NullableFloatFunction1<T>> selector)	Computes the sum of the sequence of nullable Float values that is obtained by invoking a projection function on each element of the input sequence.
java.lang.Integer	sumNullableInteger(Queryable<T> source, FunctionExpression<NullableIntegerFunction1<T>> selector)	Computes the sum of the sequence of nullable int values that is obtained by invoking a projection function on each element of the input sequence.
java.lang.Long	sumNullableLong(Queryable<T> source, FunctionExpression<NullableLongFunction1<T>> selector)	Computes the sum of the sequence of nullable long values that is obtained by invoking a projection function on each element of the input sequence.
Queryable<T>	take(Queryable<T> source, int count)	Returns a specified number of contiguous elements from the start of a sequence.
Queryable<T>	takeWhile(Queryable<T> source, FunctionExpression<Predicate1<T>> predicate)	Returns elements from a sequence as long as a specified condition is true.
Queryable<T>	takeWhileN(Queryable<T> source, FunctionExpression<Predicate2<T,java.lang.Integer>> predicate)	Returns elements from a sequence as long as a specified condition is true.
<TKey extends java.lang.Comparable<TKey>> OrderedQueryable<T>	thenBy(OrderedQueryable<T> source, FunctionExpression<Function1<T,TKey>> keySelector)
<TKey> OrderedQueryable<T>	thenBy(OrderedQueryable<T> source, FunctionExpression<Function1<T,TKey>> keySelector, java.util.Comparator<TKey> comparator)
<TKey extends java.lang.Comparable<TKey>> OrderedQueryable<T>	thenByDescending(OrderedQueryable<T> source, FunctionExpression<Function1<T,TKey>> keySelector)
<TKey> OrderedQueryable<T>	thenByDescending(OrderedQueryable<T> source, FunctionExpression<Function1<T,TKey>> keySelector, java.util.Comparator<TKey> comparator)
(package private) RelNode	toRel(Queryable<T> queryable)
Queryable<T>	union(Queryable<T> source, Enumerable<T> source1)	Produces the set union of two sequences by using the default equality comparer.
Queryable<T>	union(Queryable<T> source, Enumerable<T> source1, EqualityComparer<T> tEqualityComparer)	Produces the set union of two sequences by using a specified EqualityComparer<T>.
Queryable<T>	where(Queryable<T> source, FunctionExpression<? extends Predicate1<T>> predicate)	Filters a sequence of values based on a predicate.
Queryable<T>	whereN(Queryable<T> source, FunctionExpression<? extends Predicate2<T,java.lang.Integer>> predicate)	Filters a sequence of values based on a predicate.
<T1,TResult> Queryable<TResult>	zip(Queryable<T> source, Enumerable<T1> source1, FunctionExpression<Function2<T,T1,TResult>> resultSelector)	Merges two sequences by using the specified predicate function.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

translator

private final LixToRelTranslator translator

rel

private RelNode rel

Constructor Detail

QueryableRelBuilder

QueryableRelBuilder(LixToRelTranslator translator)

Method Detail

toRel

RelNode toRel(Queryable<T> queryable)

setRel

private void setRel(RelNode rel)

Sets the output of this event.

aggregate

public <TAccumulate,TResult> TResult aggregate(Queryable<T> source,
                                                     TAccumulate seed,
                                                     FunctionExpression<Function2<TAccumulate,T,TAccumulate>> func,
                                                     FunctionExpression<Function1<TAccumulate,TResult>> selector)

Description copied from interface: QueryableFactory

Applies an accumulator function over a sequence. The specified seed value is used as the initial accumulator value, and the specified function is used to select the result value.

Specified by:

aggregate in interface QueryableFactory<T>

aggregate

public T aggregate(Queryable<T> source,
                   FunctionExpression<Function2<T,T,T>> selector)

Description copied from interface: QueryableFactory

Applies an accumulator function over a sequence.

Specified by:

aggregate in interface QueryableFactory<T>

aggregate

public <TAccumulate> TAccumulate aggregate(Queryable<T> source,
                                           TAccumulate seed,
                                           FunctionExpression<Function2<TAccumulate,T,TAccumulate>> selector)

Description copied from interface: QueryableFactory

Applies an accumulator function over a sequence. The specified seed value is used as the initial accumulator value.

Specified by:

aggregate in interface QueryableFactory<T>

all

public boolean all(Queryable<T> source,
                   FunctionExpression<Predicate1<T>> predicate)

Description copied from interface: QueryableFactory

Determines whether all the elements of a sequence satisfy a condition.

Specified by:

all in interface QueryableFactory<T>

any

public boolean any(Queryable<T> source)

Description copied from interface: QueryableFactory

Determines whether a sequence contains any elements.

Specified by:

any in interface QueryableFactory<T>

any

public boolean any(Queryable<T> source,
                   FunctionExpression<Predicate1<T>> predicate)

Description copied from interface: QueryableFactory

Determines whether any element of a sequence satisfies a condition.

Specified by:

any in interface QueryableFactory<T>

averageBigDecimal

public java.math.BigDecimal averageBigDecimal(Queryable<T> source,
                                              FunctionExpression<BigDecimalFunction1<T>> selector)

Description copied from interface: QueryableFactory

Computes the average of a sequence of Decimal values that is obtained by invoking a projection function on each element of the input sequence.

Specified by:

averageBigDecimal in interface QueryableFactory<T>

averageNullableBigDecimal

public java.math.BigDecimal averageNullableBigDecimal(Queryable<T> source,
                                                      FunctionExpression<NullableBigDecimalFunction1<T>> selector)

Description copied from interface: QueryableFactory

Computes the average of a sequence of nullable Decimal values that is obtained by invoking a projection function on each element of the input sequence.

Specified by:

averageNullableBigDecimal in interface QueryableFactory<T>

averageDouble

public double averageDouble(Queryable<T> source,
                            FunctionExpression<DoubleFunction1<T>> selector)

Description copied from interface: QueryableFactory

Computes the average of a sequence of Double values that is obtained by invoking a projection function on each element of the input sequence.

Specified by:

averageDouble in interface QueryableFactory<T>

averageNullableDouble

public java.lang.Double averageNullableDouble(Queryable<T> source,
                                              FunctionExpression<NullableDoubleFunction1<T>> selector)

Description copied from interface: QueryableFactory

Computes the average of a sequence of nullable Double values that is obtained by invoking a projection function on each element of the input sequence.

Specified by:

averageNullableDouble in interface QueryableFactory<T>

averageInteger

public int averageInteger(Queryable<T> source,
                          FunctionExpression<IntegerFunction1<T>> selector)

Description copied from interface: QueryableFactory

Computes the average of a sequence of int values that is obtained by invoking a projection function on each element of the input sequence.

Specified by:

averageInteger in interface QueryableFactory<T>

averageNullableInteger

public java.lang.Integer averageNullableInteger(Queryable<T> source,
                                                FunctionExpression<NullableIntegerFunction1<T>> selector)

Description copied from interface: QueryableFactory

Computes the average of a sequence of nullable int values that is obtained by invoking a projection function on each element of the input sequence.

Specified by:

averageNullableInteger in interface QueryableFactory<T>

averageFloat

public float averageFloat(Queryable<T> source,
                          FunctionExpression<FloatFunction1<T>> selector)

Description copied from interface: QueryableFactory

Computes the average of a sequence of Float values that is obtained by invoking a projection function on each element of the input sequence.

Specified by:

averageFloat in interface QueryableFactory<T>

averageNullableFloat

public java.lang.Float averageNullableFloat(Queryable<T> source,
                                            FunctionExpression<NullableFloatFunction1<T>> selector)

Description copied from interface: QueryableFactory

Computes the average of a sequence of nullable Float values that is obtained by invoking a projection function on each element of the input sequence.

Specified by:

averageNullableFloat in interface QueryableFactory<T>

averageLong

public long averageLong(Queryable<T> source,
                        FunctionExpression<LongFunction1<T>> selector)

Description copied from interface: QueryableFactory

Computes the average of a sequence of long values that is obtained by invoking a projection function on each element of the input sequence.

Specified by:

averageLong in interface QueryableFactory<T>

averageNullableLong

public java.lang.Long averageNullableLong(Queryable<T> source,
                                          FunctionExpression<NullableLongFunction1<T>> selector)

Description copied from interface: QueryableFactory

Computes the average of a sequence of nullable long values that is obtained by invoking a projection function on each element of the input sequence.

Specified by:

averageNullableLong in interface QueryableFactory<T>

concat

public Queryable<T> concat(Queryable<T> source,
                           Enumerable<T> source2)

Description copied from interface: QueryableFactory

Concatenates two sequences.

Specified by:

concat in interface QueryableFactory<T>

contains

public boolean contains(Queryable<T> source,
                        T element)

Description copied from interface: QueryableFactory

Determines whether a sequence contains a specified element by using the default equality comparer.

Specified by:

contains in interface QueryableFactory<T>

contains

public boolean contains(Queryable<T> source,
                        T element,
                        EqualityComparer<T> comparer)

Description copied from interface: QueryableFactory

Determines whether a sequence contains a specified element by using a specified EqualityComparer<T>.

Specified by:

contains in interface QueryableFactory<T>

count

public int count(Queryable<T> source)

Description copied from interface: QueryableFactory

Returns the number of elements in a sequence.

Specified by:

count in interface QueryableFactory<T>

count

public int count(Queryable<T> source,
                 FunctionExpression<Predicate1<T>> predicate)

Description copied from interface: QueryableFactory

Returns the number of elements in the specified sequence that satisfies a condition.

Specified by:

count in interface QueryableFactory<T>

defaultIfEmpty

public Queryable<T> defaultIfEmpty(Queryable<T> source)

Description copied from interface: QueryableFactory

Returns the elements of the specified sequence or the type parameter's default value in a singleton collection if the sequence is empty.

Specified by:

defaultIfEmpty in interface QueryableFactory<T>

defaultIfEmpty

public Queryable<T> defaultIfEmpty(Queryable<T> source,
                                   T value)

Description copied from interface: QueryableFactory

Returns the elements of the specified sequence or the specified value in a singleton collection if the sequence is empty.

Specified by:

defaultIfEmpty in interface QueryableFactory<T>

distinct

public Queryable<T> distinct(Queryable<T> source)

Description copied from interface: QueryableFactory

Returns distinct elements from a sequence by using the default equality comparer to compare values.

Specified by:

distinct in interface QueryableFactory<T>

distinct

public Queryable<T> distinct(Queryable<T> source,
                             EqualityComparer<T> comparer)

Description copied from interface: QueryableFactory

Returns distinct elements from a sequence by using a specified EqualityComparer<T> to compare values.

Specified by:

distinct in interface QueryableFactory<T>

elementAt

public T elementAt(Queryable<T> source,
                   int index)

Description copied from interface: QueryableFactory

Returns the element at a specified index in a sequence.

Specified by:

elementAt in interface QueryableFactory<T>

elementAtOrDefault

public T elementAtOrDefault(Queryable<T> source,
                            int index)

Description copied from interface: QueryableFactory

Returns the element at a specified index in a sequence or a default value if the index is out of range.

Specified by:

elementAtOrDefault in interface QueryableFactory<T>

except

public Queryable<T> except(Queryable<T> source,
                           Enumerable<T> enumerable)

Description copied from interface: QueryableFactory

Produces the set difference of two sequences by using the default equality comparer to compare values. (Defined by Queryable.)

Specified by:

except in interface QueryableFactory<T>

except

public Queryable<T> except(Queryable<T> source,
                           Enumerable<T> enumerable,
                           EqualityComparer<T> tEqualityComparer)

Description copied from interface: QueryableFactory

Produces the set difference of two sequences by using the specified EqualityComparer<T> to compare values.

Specified by:

except in interface QueryableFactory<T>

first

public T first(Queryable<T> source)

Description copied from interface: QueryableFactory

Returns the first element of a sequence. (Defined by Queryable.)

Specified by:

first in interface QueryableFactory<T>

first

public T first(Queryable<T> source,
               FunctionExpression<Predicate1<T>> predicate)

Description copied from interface: QueryableFactory

Returns the first element of a sequence that satisfies a specified condition.

Specified by:

first in interface QueryableFactory<T>

firstOrDefault

public T firstOrDefault(Queryable<T> source)

Description copied from interface: QueryableFactory

Returns the first element of a sequence, or a default value if the sequence contains no elements.

Specified by:

firstOrDefault in interface QueryableFactory<T>

firstOrDefault

public T firstOrDefault(Queryable<T> source,
                        FunctionExpression<Predicate1<T>> predicate)

Description copied from interface: QueryableFactory

Returns the first element of a sequence that satisfies a specified condition or a default value if no such element is found.

Specified by:

firstOrDefault in interface QueryableFactory<T>

groupBy

public <TKey> Queryable<Grouping<TKey,T>> groupBy(Queryable<T> source,
                                                        FunctionExpression<Function1<T,TKey>> keySelector)

Description copied from interface: QueryableFactory

Groups the elements of a sequence according to a specified key selector function.

Specified by:

groupBy in interface QueryableFactory<T>

groupBy

public <TKey> Queryable<Grouping<TKey,T>> groupBy(Queryable<T> source,
                                                        FunctionExpression<Function1<T,TKey>> keySelector,
                                                        EqualityComparer<TKey> comparer)

Description copied from interface: QueryableFactory

Groups the elements of a sequence according to a specified key selector function and compares the keys by using a specified comparer.

Specified by:

groupBy in interface QueryableFactory<T>

groupBy

public <TKey,TElement> Queryable<Grouping<TKey,TElement>> groupBy(Queryable<T> source,
                                                                              FunctionExpression<Function1<T,TKey>> keySelector,
                                                                              FunctionExpression<Function1<T,TElement>> elementSelector)

Description copied from interface: QueryableFactory

Groups the elements of a sequence according to a specified key selector function and projects the elements for each group by using a specified function.

Specified by:

groupBy in interface QueryableFactory<T>

groupByK

public <TKey,TResult> Queryable<TResult> groupByK(Queryable<T> source,
                                                        FunctionExpression<Function1<T,TKey>> keySelector,
                                                        FunctionExpression<Function2<TKey,Enumerable<T>,TResult>> resultSelector)

Description copied from interface: QueryableFactory

Groups the elements of a sequence according to a specified key selector function and creates a result value from each group and its key.

Specified by:

groupByK in interface QueryableFactory<T>

groupBy

public <TKey,TElement> Queryable<Grouping<TKey,TElement>> groupBy(Queryable<T> source,
                                                                              FunctionExpression<Function1<T,TKey>> keySelector,
                                                                              FunctionExpression<Function1<T,TElement>> elementSelector,
                                                                              EqualityComparer<TKey> comparer)

Description copied from interface: QueryableFactory

Groups the elements of a sequence and projects the elements for each group by using a specified function. Key values are compared by using a specified comparer.

Specified by:

groupBy in interface QueryableFactory<T>

groupByK

public <TKey,TResult> Queryable<TResult> groupByK(Queryable<T> source,
                                                        FunctionExpression<Function1<T,TKey>> keySelector,
                                                        FunctionExpression<Function2<TKey,Enumerable<T>,TResult>> elementSelector,
                                                        EqualityComparer<TKey> comparer)

Description copied from interface: QueryableFactory

Groups the elements of a sequence according to a specified key selector function and creates a result value from each group and its key. Keys are compared by using a specified comparer.

Specified by:

groupByK in interface QueryableFactory<T>

groupBy

public <TKey,TElement,TResult> Queryable<TResult> groupBy(Queryable<T> source,
                                                                      FunctionExpression<Function1<T,TKey>> keySelector,
                                                                      FunctionExpression<Function1<T,TElement>> elementSelector,
                                                                      FunctionExpression<Function2<TKey,Enumerable<TElement>,TResult>> resultSelector)

Description copied from interface: QueryableFactory

Groups the elements of a sequence according to a specified key selector function and creates a result value from each group and its key. The elements of each group are projected by using a specified function.

Specified by:

groupBy in interface QueryableFactory<T>

groupBy

public <TKey,TElement,TResult> Queryable<TResult> groupBy(Queryable<T> source,
                                                                      FunctionExpression<Function1<T,TKey>> keySelector,
                                                                      FunctionExpression<Function1<T,TElement>> elementSelector,
                                                                      FunctionExpression<Function2<TKey,Enumerable<TElement>,TResult>> resultSelector,
                                                                      EqualityComparer<TKey> comparer)

Description copied from interface: QueryableFactory

Groups the elements of a sequence according to a specified key selector function and creates a result value from each group and its key. Keys are compared by using a specified comparer and the elements of each group are projected by using a specified function.

Specified by:

groupBy in interface QueryableFactory<T>

groupJoin

public <TInner,TKey,TResult> Queryable<TResult> groupJoin(Queryable<T> source,
                                                                      Enumerable<TInner> inner,
                                                                      FunctionExpression<Function1<T,TKey>> outerKeySelector,
                                                                      FunctionExpression<Function1<TInner,TKey>> innerKeySelector,
                                                                      FunctionExpression<Function2<T,Enumerable<TInner>,TResult>> resultSelector)

Description copied from interface: QueryableFactory

Correlates the elements of two sequences based on key equality and groups the results. The default equality comparer is used to compare keys.

Specified by:

groupJoin in interface QueryableFactory<T>

groupJoin

public <TInner,TKey,TResult> Queryable<TResult> groupJoin(Queryable<T> source,
                                                                      Enumerable<TInner> inner,
                                                                      FunctionExpression<Function1<T,TKey>> outerKeySelector,
                                                                      FunctionExpression<Function1<TInner,TKey>> innerKeySelector,
                                                                      FunctionExpression<Function2<T,Enumerable<TInner>,TResult>> resultSelector,
                                                                      EqualityComparer<TKey> comparer)

Description copied from interface: QueryableFactory

Correlates the elements of two sequences based on key equality and groups the results. A specified EqualityComparer is used to compare keys.

Specified by:

groupJoin in interface QueryableFactory<T>

intersect

public Queryable<T> intersect(Queryable<T> source,
                              Enumerable<T> enumerable)

Description copied from interface: QueryableFactory

Produces the set intersection of two sequences by using the default equality comparer to compare values. (Defined by Queryable.)

Specified by:

intersect in interface QueryableFactory<T>

intersect

public Queryable<T> intersect(Queryable<T> source,
                              Enumerable<T> enumerable,
                              EqualityComparer<T> tEqualityComparer)

Description copied from interface: QueryableFactory

Produces the set intersection of two sequences by using the specified EqualityComparer to compare values.

Specified by:

intersect in interface QueryableFactory<T>

join

public <TInner,TKey,TResult> Queryable<TResult> join(Queryable<T> source,
                                                                 Enumerable<TInner> inner,
                                                                 FunctionExpression<Function1<T,TKey>> outerKeySelector,
                                                                 FunctionExpression<Function1<TInner,TKey>> innerKeySelector,
                                                                 FunctionExpression<Function2<T,TInner,TResult>> resultSelector)

Description copied from interface: QueryableFactory

Correlates the elements of two sequences based on matching keys. The default equality comparer is used to compare keys.

Specified by:

join in interface QueryableFactory<T>

join

public <TInner,TKey,TResult> Queryable<TResult> join(Queryable<T> source,
                                                                 Enumerable<TInner> inner,
                                                                 FunctionExpression<Function1<T,TKey>> outerKeySelector,
                                                                 FunctionExpression<Function1<TInner,TKey>> innerKeySelector,
                                                                 FunctionExpression<Function2<T,TInner,TResult>> resultSelector,
                                                                 EqualityComparer<TKey> comparer)

Description copied from interface: QueryableFactory

Correlates the elements of two sequences based on matching keys. A specified EqualityComparer is used to compare keys.

Specified by:

join in interface QueryableFactory<T>

last

public T last(Queryable<T> source)

Description copied from interface: QueryableFactory

Returns the last element in a sequence. (Defined by Queryable.)

Specified by:

last in interface QueryableFactory<T>

last

public T last(Queryable<T> source,
              FunctionExpression<Predicate1<T>> predicate)

Description copied from interface: QueryableFactory

Returns the last element of a sequence that satisfies a specified condition.

Specified by:

last in interface QueryableFactory<T>

lastOrDefault

public T lastOrDefault(Queryable<T> source)

Description copied from interface: QueryableFactory

Returns the last element in a sequence, or a default value if the sequence contains no elements.

Specified by:

lastOrDefault in interface QueryableFactory<T>

lastOrDefault

public T lastOrDefault(Queryable<T> source,
                       FunctionExpression<Predicate1<T>> predicate)

Description copied from interface: QueryableFactory

Returns the last element of a sequence that satisfies a condition or a default value if no such element is found.

Specified by:

lastOrDefault in interface QueryableFactory<T>

longCount

public long longCount(Queryable<T> source)

Description copied from interface: QueryableFactory

Returns an long that represents the total number of elements in a sequence.

Specified by:

longCount in interface QueryableFactory<T>

longCount

public long longCount(Queryable<T> source,
                      FunctionExpression<Predicate1<T>> predicate)

Description copied from interface: QueryableFactory

Returns an long that represents the number of elements in a sequence that satisfy a condition.

Specified by:

longCount in interface QueryableFactory<T>

max

public T max(Queryable<T> source)

Description copied from interface: QueryableFactory

Returns the maximum value in a generic IQueryable<T>.

Specified by:

max in interface QueryableFactory<T>

max

public <TResult extends java.lang.Comparable<TResult>> TResult max(Queryable<T> source,
                                                                   FunctionExpression<Function1<T,TResult>> selector)

Description copied from interface: QueryableFactory

Invokes a projection function on each element of a generic IQueryable<T> and returns the maximum resulting value.

Specified by:

max in interface QueryableFactory<T>

min

public T min(Queryable<T> source)

Description copied from interface: QueryableFactory

Returns the minimum value in a generic IQueryable<T>.

Specified by:

min in interface QueryableFactory<T>

min

public <TResult extends java.lang.Comparable<TResult>> TResult min(Queryable<T> source,
                                                                   FunctionExpression<Function1<T,TResult>> selector)

Description copied from interface: QueryableFactory

Invokes a projection function on each element of a generic IQueryable<T> and returns the minimum resulting value.

Specified by:

min in interface QueryableFactory<T>

ofType

public <TResult> Queryable<TResult> ofType(Queryable<T> source,
                                           java.lang.Class<TResult> clazz)

Description copied from interface: QueryableFactory

Filters the elements of an IQueryable based on a specified type.

Specified by:

ofType in interface QueryableFactory<T>

cast

public <T2> Queryable<T2> cast(Queryable<T> source,
                               java.lang.Class<T2> clazz)

Specified by:

cast in interface QueryableFactory<T>

orderBy

public <TKey extends java.lang.Comparable> OrderedQueryable<T> orderBy(Queryable<T> source,
                                                                       FunctionExpression<Function1<T,TKey>> keySelector)

Description copied from interface: QueryableFactory

Sorts the elements of a sequence in ascending order according to a key.

Specified by:

orderBy in interface QueryableFactory<T>

orderBy

public <TKey> OrderedQueryable<T> orderBy(Queryable<T> source,
                                          FunctionExpression<Function1<T,TKey>> keySelector,
                                          java.util.Comparator<TKey> comparator)

Description copied from interface: QueryableFactory

Sorts the elements of a sequence in ascending order by using a specified comparer.

Specified by:

orderBy in interface QueryableFactory<T>

orderByDescending

public <TKey extends java.lang.Comparable> OrderedQueryable<T> orderByDescending(Queryable<T> source,
                                                                                 FunctionExpression<Function1<T,TKey>> keySelector)

Description copied from interface: QueryableFactory

Sorts the elements of a sequence in descending order according to a key.

Specified by:

orderByDescending in interface QueryableFactory<T>

orderByDescending

public <TKey> OrderedQueryable<T> orderByDescending(Queryable<T> source,
                                                    FunctionExpression<Function1<T,TKey>> keySelector,
                                                    java.util.Comparator<TKey> comparator)

Description copied from interface: QueryableFactory

Sorts the elements of a sequence in descending order by using a specified comparer.

Specified by:

orderByDescending in interface QueryableFactory<T>

reverse

public Queryable<T> reverse(Queryable<T> source)

Description copied from interface: QueryableFactory

Inverts the order of the elements in a sequence.

Specified by:

reverse in interface QueryableFactory<T>

select

public <TResult> Queryable<TResult> select(Queryable<T> source,
                                           FunctionExpression<Function1<T,TResult>> selector)

Description copied from interface: QueryableFactory

Projects each element of a sequence into a new form.

Specified by:

select in interface QueryableFactory<T>

selectN

public <TResult> Queryable<TResult> selectN(Queryable<T> source,
                                            FunctionExpression<Function2<T,java.lang.Integer,TResult>> selector)

Description copied from interface: QueryableFactory

Projects each element of a sequence into a new form by incorporating the element's index.

Specified by:

selectN in interface QueryableFactory<T>

selectMany

public <TResult> Queryable<TResult> selectMany(Queryable<T> source,
                                               FunctionExpression<Function1<T,Enumerable<TResult>>> selector)

Description copied from interface: QueryableFactory

Projects each element of a sequence to an Enumerable<T> and combines the resulting sequences into one sequence.

Specified by:

selectMany in interface QueryableFactory<T>

selectManyN

public <TResult> Queryable<TResult> selectManyN(Queryable<T> source,
                                                FunctionExpression<Function2<T,java.lang.Integer,Enumerable<TResult>>> selector)

Description copied from interface: QueryableFactory

Projects each element of a sequence to an Enumerable<T> and combines the resulting sequences into one sequence. The index of each source element is used in the projected form of that element.

Specified by:

selectManyN in interface QueryableFactory<T>

selectMany

public <TCollection,TResult> Queryable<TResult> selectMany(Queryable<T> source,
                                                                 FunctionExpression<Function2<T,java.lang.Integer,Enumerable<TCollection>>> collectionSelector,
                                                                 FunctionExpression<Function2<T,TCollection,TResult>> resultSelector)

Description copied from interface: QueryableFactory

Projects each element of a sequence to an Enumerable<T> that incorporates the index of the source element that produced it. A result selector function is invoked on each element of each intermediate sequence, and the resulting values are combined into a single, one-dimensional sequence and returned.

Specified by:

selectMany in interface QueryableFactory<T>

selectManyN

public <TCollection,TResult> Queryable<TResult> selectManyN(Queryable<T> source,
                                                                  FunctionExpression<Function1<T,Enumerable<TCollection>>> collectionSelector,
                                                                  FunctionExpression<Function2<T,TCollection,TResult>> resultSelector)

Description copied from interface: QueryableFactory

Projects each element of a sequence to an Enumerable<T> and invokes a result selector function on each element therein. The resulting values from each intermediate sequence are combined into a single, one-dimensional sequence and returned.

Specified by:

selectManyN in interface QueryableFactory<T>

sequenceEqual

public boolean sequenceEqual(Queryable<T> source,
                             Enumerable<T> enumerable)

Description copied from interface: QueryableFactory

Determines whether two sequences are equal by using the default equality comparer to compare elements.

Specified by:

sequenceEqual in interface QueryableFactory<T>

sequenceEqual

public boolean sequenceEqual(Queryable<T> source,
                             Enumerable<T> enumerable,
                             EqualityComparer<T> tEqualityComparer)

Description copied from interface: QueryableFactory

Determines whether two sequences are equal by using a specified EqualityComparer to compare elements.

Specified by:

sequenceEqual in interface QueryableFactory<T>

single

public T single(Queryable<T> source)

Description copied from interface: QueryableFactory

Returns the only element of a sequence, and throws an exception if there is not exactly one element in the sequence.

Specified by:

single in interface QueryableFactory<T>

single

public T single(Queryable<T> source,
                FunctionExpression<Predicate1<T>> predicate)

Description copied from interface: QueryableFactory

Returns the only element of a sequence that satisfies a specified condition, and throws an exception if more than one such element exists.

Specified by:

single in interface QueryableFactory<T>

singleOrDefault

public T singleOrDefault(Queryable<T> source)

Description copied from interface: QueryableFactory

Returns the only element of a sequence, or a default value if the sequence is empty; this method throws an exception if there is more than one element in the sequence.

Specified by:

singleOrDefault in interface QueryableFactory<T>

singleOrDefault

public T singleOrDefault(Queryable<T> source,
                         FunctionExpression<Predicate1<T>> predicate)

Description copied from interface: QueryableFactory

Returns the only element of a sequence that satisfies a specified condition or a default value if no such element exists; this method throws an exception if more than one element satisfies the condition.

Specified by:

singleOrDefault in interface QueryableFactory<T>

skip

public Queryable<T> skip(Queryable<T> source,
                         int count)

Description copied from interface: QueryableFactory

Bypasses a specified number of elements in a sequence and then returns the remaining elements.

Specified by:

skip in interface QueryableFactory<T>

skipWhile

public Queryable<T> skipWhile(Queryable<T> source,
                              FunctionExpression<Predicate1<T>> predicate)

Description copied from interface: QueryableFactory

Bypasses elements in a sequence as long as a specified condition is true and then returns the remaining elements.

Specified by:

skipWhile in interface QueryableFactory<T>

skipWhileN

public Queryable<T> skipWhileN(Queryable<T> source,
                               FunctionExpression<Predicate2<T,java.lang.Integer>> predicate)

Description copied from interface: QueryableFactory

Bypasses elements in a sequence as long as a specified condition is true and then returns the remaining elements. The element's index is used in the logic of the predicate function.

Specified by:

skipWhileN in interface QueryableFactory<T>

sumBigDecimal

public java.math.BigDecimal sumBigDecimal(Queryable<T> source,
                                          FunctionExpression<BigDecimalFunction1<T>> selector)

Description copied from interface: QueryableFactory

Computes the sum of the sequence of Decimal values that is obtained by invoking a projection function on each element of the input sequence.

Specified by:

sumBigDecimal in interface QueryableFactory<T>

sumNullableBigDecimal

public java.math.BigDecimal sumNullableBigDecimal(Queryable<T> source,
                                                  FunctionExpression<NullableBigDecimalFunction1<T>> selector)

Description copied from interface: QueryableFactory

Computes the sum of the sequence of nullable Decimal values that is obtained by invoking a projection function on each element of the input sequence.

Specified by:

sumNullableBigDecimal in interface QueryableFactory<T>

sumDouble

public double sumDouble(Queryable<T> source,
                        FunctionExpression<DoubleFunction1<T>> selector)

Description copied from interface: QueryableFactory

Computes the sum of the sequence of Double values that is obtained by invoking a projection function on each element of the input sequence.

Specified by:

sumDouble in interface QueryableFactory<T>

sumNullableDouble

public java.lang.Double sumNullableDouble(Queryable<T> source,
                                          FunctionExpression<NullableDoubleFunction1<T>> selector)

Description copied from interface: QueryableFactory

Computes the sum of the sequence of nullable Double values that is obtained by invoking a projection function on each element of the input sequence.

Specified by:

sumNullableDouble in interface QueryableFactory<T>

sumInteger

public int sumInteger(Queryable<T> source,
                      FunctionExpression<IntegerFunction1<T>> selector)

Description copied from interface: QueryableFactory

Computes the sum of the sequence of int values that is obtained by invoking a projection function on each element of the input sequence.

Specified by:

sumInteger in interface QueryableFactory<T>

sumNullableInteger

public java.lang.Integer sumNullableInteger(Queryable<T> source,
                                            FunctionExpression<NullableIntegerFunction1<T>> selector)

Description copied from interface: QueryableFactory

Computes the sum of the sequence of nullable int values that is obtained by invoking a projection function on each element of the input sequence.

Specified by:

sumNullableInteger in interface QueryableFactory<T>

sumLong

public long sumLong(Queryable<T> source,
                    FunctionExpression<LongFunction1<T>> selector)

Description copied from interface: QueryableFactory

Computes the sum of the sequence of long values that is obtained by invoking a projection function on each element of the input sequence.

Specified by:

sumLong in interface QueryableFactory<T>

sumNullableLong

public java.lang.Long sumNullableLong(Queryable<T> source,
                                      FunctionExpression<NullableLongFunction1<T>> selector)

Description copied from interface: QueryableFactory

Computes the sum of the sequence of nullable long values that is obtained by invoking a projection function on each element of the input sequence.

Specified by:

sumNullableLong in interface QueryableFactory<T>

sumFloat

public float sumFloat(Queryable<T> source,
                      FunctionExpression<FloatFunction1<T>> selector)

Description copied from interface: QueryableFactory

Computes the sum of the sequence of Float values that is obtained by invoking a projection function on each element of the input sequence.

Specified by:

sumFloat in interface QueryableFactory<T>

sumNullableFloat

public java.lang.Float sumNullableFloat(Queryable<T> source,
                                        FunctionExpression<NullableFloatFunction1<T>> selector)

Description copied from interface: QueryableFactory

Computes the sum of the sequence of nullable Float values that is obtained by invoking a projection function on each element of the input sequence.

Specified by:

sumNullableFloat in interface QueryableFactory<T>

take

public Queryable<T> take(Queryable<T> source,
                         int count)

Description copied from interface: QueryableFactory

Returns a specified number of contiguous elements from the start of a sequence.

Specified by:

take in interface QueryableFactory<T>

takeWhile

public Queryable<T> takeWhile(Queryable<T> source,
                              FunctionExpression<Predicate1<T>> predicate)

Description copied from interface: QueryableFactory

Returns elements from a sequence as long as a specified condition is true.

Specified by:

takeWhile in interface QueryableFactory<T>

takeWhileN

public Queryable<T> takeWhileN(Queryable<T> source,
                               FunctionExpression<Predicate2<T,java.lang.Integer>> predicate)

Description copied from interface: QueryableFactory

Returns elements from a sequence as long as a specified condition is true. The element's index is used in the logic of the predicate function.

Specified by:

takeWhileN in interface QueryableFactory<T>

thenBy

public <TKey extends java.lang.Comparable<TKey>> OrderedQueryable<T> thenBy(OrderedQueryable<T> source,
                                                                            FunctionExpression<Function1<T,TKey>> keySelector)

Specified by:

thenBy in interface QueryableFactory<T>

thenBy

public <TKey> OrderedQueryable<T> thenBy(OrderedQueryable<T> source,
                                         FunctionExpression<Function1<T,TKey>> keySelector,
                                         java.util.Comparator<TKey> comparator)

Specified by:

thenBy in interface QueryableFactory<T>

thenByDescending

public <TKey extends java.lang.Comparable<TKey>> OrderedQueryable<T> thenByDescending(OrderedQueryable<T> source,
                                                                                      FunctionExpression<Function1<T,TKey>> keySelector)

Specified by:

thenByDescending in interface QueryableFactory<T>

thenByDescending

public <TKey> OrderedQueryable<T> thenByDescending(OrderedQueryable<T> source,
                                                   FunctionExpression<Function1<T,TKey>> keySelector,
                                                   java.util.Comparator<TKey> comparator)

Specified by:

thenByDescending in interface QueryableFactory<T>

union

public Queryable<T> union(Queryable<T> source,
                          Enumerable<T> source1)

Description copied from interface: QueryableFactory

Produces the set union of two sequences by using the default equality comparer.

Specified by:

union in interface QueryableFactory<T>

union

public Queryable<T> union(Queryable<T> source,
                          Enumerable<T> source1,
                          EqualityComparer<T> tEqualityComparer)

Description copied from interface: QueryableFactory

Produces the set union of two sequences by using a specified EqualityComparer<T>.

Specified by:

union in interface QueryableFactory<T>

where

public Queryable<T> where(Queryable<T> source,
                          FunctionExpression<? extends Predicate1<T>> predicate)

Description copied from interface: QueryableFactory

Filters a sequence of values based on a predicate.

Specified by:

where in interface QueryableFactory<T>

whereN

public Queryable<T> whereN(Queryable<T> source,
                           FunctionExpression<? extends Predicate2<T,java.lang.Integer>> predicate)

Description copied from interface: QueryableFactory

Filters a sequence of values based on a predicate. Each element's index is used in the logic of the predicate function.

Specified by:

whereN in interface QueryableFactory<T>

zip

public <T1,TResult> Queryable<TResult> zip(Queryable<T> source,
                                                 Enumerable<T1> source1,
                                                 FunctionExpression<Function2<T,T1,TResult>> resultSelector)

Description copied from interface: QueryableFactory

Merges two sequences by using the specified predicate function.

Specified by:

zip in interface QueryableFactory<T>