org.apache.flink.table.expressions

Class ResolvedExpressionVisitor<R>

java.lang.Object

org.apache.flink.table.expressions.ResolvedExpressionVisitor<R>

All Implemented Interfaces:

ExpressionVisitor<R>

Direct Known Subclasses:

ResolvedExpressionDefaultVisitor

@Internal
public abstract class ResolvedExpressionVisitor<R>
extends Object
implements ExpressionVisitor<R>

A visitor for all ResolvedExpressions.

All expressions of this visitor are the output of the API and might be passed to a planner.

Constructor Summary

Constructors

Constructor and Description
ResolvedExpressionVisitor()

Method Summary

Modifier and Type	Method and Description
R	visit(Expression other)
abstract R	visit(LocalReferenceExpression localReference)
abstract R	visit(ResolvedExpression other) For resolved expressions created by the planner.
abstract R	visit(TableReferenceExpression tableReference)

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.flink.table.expressions.ExpressionVisitor

visit, visit, visit, visit, visit

Constructor Detail

ResolvedExpressionVisitor

public ResolvedExpressionVisitor()

Method Detail

visit

public final R visit(Expression other)

Specified by:

visit in interface ExpressionVisitor<R>

visit

public abstract R visit(TableReferenceExpression tableReference)

visit

public abstract R visit(LocalReferenceExpression localReference)

visit

public abstract R visit(ResolvedExpression other)

For resolved expressions created by the planner.