Package org.apache.calcite.rex

Class RexPatternFieldRef

java.lang.Object

org.apache.calcite.rex.RexNode

org.apache.calcite.rex.RexVariable

org.apache.calcite.rex.RexSlot

org.apache.calcite.rex.RexInputRef

org.apache.calcite.rex.RexPatternFieldRef

public class RexPatternFieldRef
extends RexInputRef

Variable which references a field of an input relational expression

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.calcite.rex.RexSlot

RexSlot.SelfPopulatingList

Field Summary

Fields

Modifier and Type	Field	Description
private java.lang.String	alpha

Fields inherited from class org.apache.calcite.rex.RexSlot

index

Fields inherited from class org.apache.calcite.rex.RexVariable

name, type

Fields inherited from class org.apache.calcite.rex.RexNode

digest

Constructor Summary

Constructors

Constructor	Description
RexPatternFieldRef(java.lang.String alpha, int index, RelDataType type)

Method Summary

Modifier and Type	Method	Description
<R,P> R	accept(RexBiVisitor<R,P> visitor, P arg)	Accepts a visitor with a payload, dispatching to the right overloaded RexBiVisitor.visitInputRef(RexInputRef, Object) visitXxx} method.
<R> R	accept(RexVisitor<R> visitor)	Accepts a visitor, dispatching to the right overloaded visitXxx method.
java.lang.String	getAlpha()
SqlKind	getKind()	Returns the kind of node this is.
static RexPatternFieldRef	of(java.lang.String alpha, int index, RelDataType type)
static RexPatternFieldRef	of(java.lang.String alpha, RexInputRef ref)

Methods inherited from class org.apache.calcite.rex.RexInputRef

createName, equals, hashCode, of, of, of2

Methods inherited from class org.apache.calcite.rex.RexSlot

getIndex

Methods inherited from class org.apache.calcite.rex.RexVariable

getName, getType

Methods inherited from class org.apache.calcite.rex.RexNode

isA, isA, isAlwaysFalse, isAlwaysTrue, toString

Methods inherited from class java.lang.Object

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

Field Detail

alpha

private final java.lang.String alpha

Constructor Detail

RexPatternFieldRef

public RexPatternFieldRef(java.lang.String alpha,
                          int index,
                          RelDataType type)

Method Detail

getAlpha

public java.lang.String getAlpha()

of

public static RexPatternFieldRef of(java.lang.String alpha,
                                    int index,
                                    RelDataType type)

of

public static RexPatternFieldRef of(java.lang.String alpha,
                                    RexInputRef ref)

accept

public <R> R accept(RexVisitor<R> visitor)

Description copied from class: RexNode

Accepts a visitor, dispatching to the right overloaded visitXxx method.

Also see RexUtil.apply(RexVisitor, java.util.List, RexNode), which applies a visitor to several expressions simultaneously.

Overrides:

accept in class RexInputRef

accept

public <R,P> R accept(RexBiVisitor<R,P> visitor,
                            P arg)

Description copied from class: RexNode

Accepts a visitor with a payload, dispatching to the right overloaded RexBiVisitor.visitInputRef(RexInputRef, Object) visitXxx} method.

Overrides:

accept in class RexInputRef

getKind

public SqlKind getKind()

Description copied from class: RexNode

Returns the kind of node this is.

Overrides:

getKind in class RexInputRef

Returns:

Node kind, never null