org.apache.flink.table.expressions

Class LocalReferenceExpression

java.lang.Object

org.apache.flink.table.expressions.LocalReferenceExpression

All Implemented Interfaces:

org.apache.flink.table.expressions.Expression, org.apache.flink.table.expressions.ResolvedExpression

@Internal
public class LocalReferenceExpression
extends Object
implements org.apache.flink.table.expressions.ResolvedExpression

Reference to entity local to a certain QueryOperation. That entity does not come from any of the Operations input. It might be for example a group window in window aggregation.

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()
org.apache.flink.table.types.DataType	getOutputDataType()
List<org.apache.flink.table.expressions.ResolvedExpression>	getResolvedChildren()
int	hashCode()
String	toString()

Methods inherited from class java.lang.Object

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

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

asSerializableString

Method Detail

getName

public String getName()

getOutputDataType

public org.apache.flink.table.types.DataType getOutputDataType()

Specified by:

getOutputDataType in interface org.apache.flink.table.expressions.ResolvedExpression

getResolvedChildren

public List<org.apache.flink.table.expressions.ResolvedExpression> getResolvedChildren()

Specified by:

getResolvedChildren in interface org.apache.flink.table.expressions.ResolvedExpression

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