Package org.apache.calcite.rel.mutable

Class MutableSort

java.lang.Object

org.apache.calcite.rel.mutable.MutableRel

org.apache.calcite.rel.mutable.MutableSingleRel

org.apache.calcite.rel.mutable.MutableSort

public class MutableSort
extends MutableSingleRel

Mutable equivalent of Sort.

Field Summary

Fields

Modifier and Type	Field	Description
RelCollation	collation
RexNode	fetch
RexNode	offset

Fields inherited from class org.apache.calcite.rel.mutable.MutableSingleRel

input

Fields inherited from class org.apache.calcite.rel.mutable.MutableRel

cluster, ordinalInParent, PAIRWISE_STRING_EQUIVALENCE, parent, rowType, STRING_EQUIVALENCE, type

Constructor Summary

Constructors

Modifier	Constructor	Description
private	MutableSort(MutableRel input, RelCollation collation, RexNode offset, RexNode fetch)

Method Summary

Modifier and Type	Method	Description
MutableRel	clone()
java.lang.StringBuilder	digest(java.lang.StringBuilder buf)
boolean	equals(java.lang.Object obj)
int	hashCode()
static MutableSort	of(MutableRel input, RelCollation collation, RexNode offset, RexNode fetch)	Creates a MutableSort.

Methods inherited from class org.apache.calcite.rel.mutable.MutableSingleRel

childrenAccept, getInput, getInputs, setInput

Methods inherited from class org.apache.calcite.rel.mutable.MutableRel

deep, getParent, replaceInParent, toString

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

collation

public final RelCollation collation

offset

public final RexNode offset

fetch

public final RexNode fetch

Constructor Detail

MutableSort

private MutableSort(MutableRel input,
                    RelCollation collation,
                    RexNode offset,
                    RexNode fetch)

Method Detail

of

public static MutableSort of(MutableRel input,
                             RelCollation collation,
                             RexNode offset,
                             RexNode fetch)

Creates a MutableSort.

Parameters:

input - Input relational expression

collation - Array of sort specifications

offset - Expression for number of rows to discard before returning first row

fetch - Expression for number of rows to fetch

equals

public boolean equals(java.lang.Object obj)

Overrides:

equals in class java.lang.Object

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

digest

public java.lang.StringBuilder digest(java.lang.StringBuilder buf)

Specified by:

digest in class MutableRel

clone

public MutableRel clone()

Specified by:

clone in class MutableRel