Package org.apache.calcite.rex

Class RexUtil.RexFinder

java.lang.Object

org.apache.calcite.rex.RexVisitorImpl<Void>

org.apache.calcite.rex.RexUtil.RexFinder

All Implemented Interfaces:

RexVisitor<Void>

Enclosing class:

RexUtil

public abstract static class RexUtil.RexFinder
extends RexVisitorImpl<Void>

Visitor that tells whether a node matching a particular description exists in a tree.

Field Summary

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

deep

Method Summary

Modifier and Type	Method	Description
boolean	anyContain(Iterable<? extends RexNode> nodes)	Returns whether any of the given expressions contain what this RexFinder seeks.
boolean	contains(RexNode node)	Returns whether the given expression contains what this RexFinder seeks.
boolean	inFilter(Filter filter)	Returns whether a Filter contains the kind of expression we seek.
boolean	inJoin(Join join)	Returns whether a Join contains kind of expression we seek.
boolean	inProject(Project project)	Returns whether a Project contains the kind of expression we seek.

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

visitArrayAnd, visitArrayOr, visitCall, visitCorrelVariable, visitDynamicParam, visitFieldAccess, visitInputRef, visitLiteral, visitLocalRef, visitOver, visitPatternFieldRef, visitRangeRef, visitSubQuery, visitTableInputRef

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.calcite.rex.RexVisitor

visitEach, visitList, visitList

Method Details

inProject

public boolean inProject(Project project)

Returns whether a Project contains the kind of expression we seek.

inFilter

public boolean inFilter(Filter filter)

Returns whether a Filter contains the kind of expression we seek.

inJoin

public boolean inJoin(Join join)

Returns whether a Join contains kind of expression we seek.

contains

public boolean contains(RexNode node)

Returns whether the given expression contains what this RexFinder seeks.

anyContain

public boolean anyContain(Iterable<? extends RexNode> nodes)

Returns whether any of the given expressions contain what this RexFinder seeks.