org.apache.flink.table.expressions

Class UnresolvedReferenceExpression

java.lang.Object

org.apache.flink.table.expressions.UnresolvedReferenceExpression

All Implemented Interfaces:

org.apache.flink.table.expressions.Expression

@PublicEvolving
public final class UnresolvedReferenceExpression
extends Object
implements org.apache.flink.table.expressions.Expression

An unresolved reference to a field, table, or local reference.

This is a purely API facing expression that will be resolved into FieldReferenceExpression, LocalReferenceExpression, or TableReferenceExpression.

Method Summary

Modifier and Type	Method and Description
<R> R	accept(org.apache.flink.table.expressions.ExpressionVisitor<R> visitor)
String	asSummaryString()
boolean	equals(Object o)
List<org.apache.flink.table.expressions.Expression>	getChildren()
String	getName()
int	hashCode()
String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Method Detail

getName

public String getName()

asSummaryString

public String asSummaryString()

Specified by:

asSummaryString in interface org.apache.flink.table.expressions.Expression

getChildren

public List<org.apache.flink.table.expressions.Expression> getChildren()

Specified by:

getChildren in interface org.apache.flink.table.expressions.Expression

accept

public <R> R accept(org.apache.flink.table.expressions.ExpressionVisitor<R> visitor)

Specified by:

accept in interface org.apache.flink.table.expressions.Expression

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

toString

public String toString()

Overrides:

toString in class Object