org.apache.flink.table.expressions

Class LookupCallExpression

java.lang.Object

org.apache.flink.table.expressions.LookupCallExpression

All Implemented Interfaces:

Expression

@PublicEvolving
public final class LookupCallExpression
extends Object
implements Expression

A call expression where the target function has not been resolved yet.

Instead of a FunctionDefinition, the call is identified by the function's name and needs to be lookup in a catalog

Method Summary

Modifier and Type	Method and Description
<R> R	accept(ExpressionVisitor<R> visitor)
String	asSummaryString() Returns a string that summarizes this expression for printing to a console.
boolean	equals(Object o)
List<Expression>	getChildren()
String	getUnresolvedName()
int	hashCode()
String	toString()

Methods inherited from class java.lang.Object

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

Method Detail

getUnresolvedName

public String getUnresolvedName()

asSummaryString

public String asSummaryString()

Description copied from interface: Expression

Returns a string that summarizes this expression for printing to a console. An implementation might skip very specific properties.

Specified by:

asSummaryString in interface Expression

Returns:

summary string of this expression for debugging purposes

getChildren

public List<Expression> getChildren()

Specified by:

getChildren in interface Expression

accept

public <R> R accept(ExpressionVisitor<R> visitor)

Specified by:

accept in interface 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