Package org.apache.calcite.rex

Class RexDynamicParam

java.lang.Object

org.apache.calcite.rex.RexNode

org.apache.calcite.rex.RexVariable

org.apache.calcite.rex.RexDynamicParam

public class RexDynamicParam
extends RexVariable

Dynamic parameter reference in a row-expression.

Field Summary

Fields

Modifier and Type	Field	Description
private int	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
RexDynamicParam(RelDataType type, int index)	Creates a dynamic parameter.

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.
boolean	equals(java.lang.Object obj)
int	getIndex()
SqlKind	getKind()	Returns the kind of node this is.
int	hashCode()

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

index

private final int index

Constructor Detail

RexDynamicParam

public RexDynamicParam(RelDataType type,
                       int index)

Creates a dynamic parameter.

Parameters:

type - inferred type of parameter

index - 0-based index of dynamic parameter in statement

Method Detail

getKind

public SqlKind getKind()

Description copied from class: RexNode

Returns the kind of node this is.

Overrides:

getKind in class RexNode

Returns:

Node kind, never null

getIndex

public int getIndex()

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.

Specified by:

accept in class RexNode

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.

Specified by:

accept in class RexNode

equals

public boolean equals(java.lang.Object obj)

Description copied from class: RexNode

Every node must implement RexNode.equals(java.lang.Object) based on its content

Specified by:

equals in class RexNode

hashCode

public int hashCode()

Description copied from class: RexNode

Every node must implement RexNode.hashCode() consistent with RexNode.equals(java.lang.Object)

Specified by:

hashCode in class RexNode