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

name, type

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

digest

Constructor Summary

Constructors

Constructor and Description
RexDynamicParam(RelDataType type, int index) Creates a dynamic parameter.

Method Summary

Methods

Modifier and Type	Method and Description
<R> R	accept(RexVisitor<R> visitor) Accepts a visitor, dispatching to the right overloaded visitXxx method.
int	getIndex()
SqlKind	getKind() Returns the kind of node this is.

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

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