Package org.apache.flink.table.expressions.utils

Class ResolvedExpressionDefaultVisitor<T>

java.lang.Object

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

org.apache.flink.table.expressions.utils.ResolvedExpressionDefaultVisitor<T>

All Implemented Interfaces:

ExpressionVisitor<T>

@Internal
public abstract class ResolvedExpressionDefaultVisitor<T>
extends ResolvedExpressionVisitor<T>

A utility ResolvedExpressionVisitor that calls defaultMethod(ResolvedExpression) by default, unless other methods are overridden explicitly.

Constructor Summary

Constructors

Constructor	Description
ResolvedExpressionDefaultVisitor()

Method Summary

Modifier and Type	Method	Description
protected abstract T	defaultMethod(ResolvedExpression expression)
T	visit(CallExpression call)
T	visit(FieldReferenceExpression fieldReference)
T	visit(LocalReferenceExpression localReference)
T	visit(NestedFieldReferenceExpression nestedFieldReference)
T	visit(ResolvedExpression other)	For resolved expressions created by the planner.
T	visit(TableReferenceExpression tableReference)
T	visit(TypeLiteralExpression typeLiteral)
T	visit(ValueLiteralExpression valueLiteral)

Methods inherited from class org.apache.flink.table.expressions.ResolvedExpressionVisitor

visit

Methods inherited from class java.lang.Object

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

Constructor Detail

ResolvedExpressionDefaultVisitor

public ResolvedExpressionDefaultVisitor()

Method Detail

visit

public T visit(TableReferenceExpression tableReference)

Specified by:

visit in class ResolvedExpressionVisitor<T>

visit

public T visit(LocalReferenceExpression localReference)

Specified by:

visit in class ResolvedExpressionVisitor<T>

visit

public T visit(CallExpression call)

visit

public T visit(ValueLiteralExpression valueLiteral)

visit

public T visit(FieldReferenceExpression fieldReference)

visit

public T visit(TypeLiteralExpression typeLiteral)

visit

public T visit(ResolvedExpression other)

Description copied from class: ResolvedExpressionVisitor

For resolved expressions created by the planner.

Specified by:

visit in class ResolvedExpressionVisitor<T>

visit

public T visit(NestedFieldReferenceExpression nestedFieldReference)

defaultMethod

protected abstract T defaultMethod(ResolvedExpression expression)