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:
org.apache.calcite.rex.RexVisitor<Void>
Enclosing class:
RexUtil
public abstract static class RexUtil.RexFinder extends org.apache.calcite.rex.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 org.apache.calcite.rex.RexNode> nodes)
    Returns whether any of the given expressions contain what this RexFinder seeks.
    boolean
    contains(org.apache.calcite.rex.RexNode node)
    Returns whether the given expression contains what this RexFinder seeks.
    boolean
    inFilter(org.apache.calcite.rel.core.Filter filter)
    Returns whether a Filter contains the kind of expression we seek.
    boolean
    inJoin(org.apache.calcite.rel.core.Join join)
    Returns whether a Join contains kind of expression we seek.
    boolean
    inProject(org.apache.calcite.rel.core.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(org.apache.calcite.rel.core.Project project)
      Returns whether a Project contains the kind of expression we seek.

    • inFilter

      public boolean inFilter(org.apache.calcite.rel.core.Filter filter)
      Returns whether a Filter contains the kind of expression we seek.

    • inJoin

      public boolean inJoin(org.apache.calcite.rel.core.Join join)
      Returns whether a Join contains kind of expression we seek.

    • contains

      public boolean contains(org.apache.calcite.rex.RexNode node)
      Returns whether the given expression contains what this RexFinder seeks.

    • anyContain

      public boolean anyContain(Iterable<? extends org.apache.calcite.rex.RexNode> nodes)
      Returns whether any of the given expressions contain what this RexFinder seeks.