Package org.apache.calcite.rex

Interface RexBiVisitor<R,P>

Type Parameters:

R - Return type

P - Payload type

All Known Implementing Classes:

LogicVisitor, RexBiVisitorImpl, RexUnaryBiVisitor

public interface RexBiVisitor<R,P>

Visitor pattern for traversing a tree of RexNode objects and passing a payload to each.

See Also:

• RexVisitor

Method Summary

Modifier and Type	Method	Description
R	visitCall(RexCall call, P arg)
R	visitCorrelVariable(RexCorrelVariable correlVariable, P arg)
R	visitDynamicParam(RexDynamicParam dynamicParam, P arg)
default void	visitEach(Iterable<? extends RexNode> exprs, P arg)	Visits a list of expressions.
default void	visitEachIndexed(Iterable<? extends RexNode> exprs)	Visits a list of expressions, passing the 0-based index of the expression in the list.
R	visitFieldAccess(RexFieldAccess fieldAccess, P arg)
R	visitInputRef(RexInputRef inputRef, P arg)
R	visitLambda(RexLambda lambda, P arg)
default List<R>	visitList(Iterable<? extends RexNode> exprs, P arg)	Visits a list and returns a list of the results.
default void	visitList(Iterable<? extends RexNode> exprs, P arg, List<R> out)	Visits a list and writes the results to another list.
R	visitLiteral(RexLiteral literal, P arg)
R	visitLocalRef(RexLocalRef localRef, P arg)
R	visitOver(RexOver over, P arg)
R	visitPatternFieldRef(RexPatternFieldRef ref, P arg)
R	visitRangeRef(RexRangeRef rangeRef, P arg)
R	visitSubQuery(RexSubQuery subQuery, P arg)
R	visitTableInputRef(RexTableInputRef ref, P arg)

Method Details

visitInputRef

R visitInputRef(RexInputRef inputRef,
 P arg)

visitLocalRef

R visitLocalRef(RexLocalRef localRef,
 P arg)

visitLiteral

R visitLiteral(RexLiteral literal,
 P arg)

visitCall

R visitCall(RexCall call,
 P arg)

visitOver

R visitOver(RexOver over,
 P arg)

visitCorrelVariable

R visitCorrelVariable(RexCorrelVariable correlVariable,
 P arg)

visitDynamicParam

R visitDynamicParam(RexDynamicParam dynamicParam,
 P arg)

visitRangeRef

R visitRangeRef(RexRangeRef rangeRef,
 P arg)

visitFieldAccess

R visitFieldAccess(RexFieldAccess fieldAccess,
 P arg)

visitSubQuery

R visitSubQuery(RexSubQuery subQuery,
 P arg)

visitTableInputRef

R visitTableInputRef(RexTableInputRef ref,
 P arg)

visitPatternFieldRef

R visitPatternFieldRef(RexPatternFieldRef ref,
 P arg)

visitLambda

R visitLambda(RexLambda lambda,
 P arg)

visitList

default void visitList(Iterable<? extends RexNode> exprs,
 P arg,
 List<R> out)

Visits a list and writes the results to another list.

visitList

default List<R> visitList(Iterable<? extends RexNode> exprs,
 P arg)

Visits a list and returns a list of the results. The resulting list is immutable and does not contain nulls.

visitEach

default void visitEach(Iterable<? extends RexNode> exprs,
 P arg)

Visits a list of expressions.

visitEachIndexed

default void visitEachIndexed(Iterable<? extends RexNode> exprs)

Visits a list of expressions, passing the 0-based index of the expression in the list.

Assumes that the payload type P is Integer.