Package com.google.cloud.firestore.pipeline.expressions

Class AliasedExpression

java.lang.Object

com.google.cloud.firestore.pipeline.expressions.AliasedExpression

All Implemented Interfaces:

Selectable

@InternalApi
public final class AliasedExpression
extends Object
implements Selectable

Method Summary

Modifier and Type	Method	Description
Selectable	as(String alias)	Creates a new AliasedExpression that wraps this expression and associates it with the given alias.
String	getAlias()
Expression	getExpr()

Methods inherited from class java.lang.Object

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

Method Details

getAlias

@InternalApi
public String getAlias()

getExpr

@InternalApi
public Expression getExpr()

as

public Selectable as(String alias)

Creates a new AliasedExpression that wraps this expression and associates it with the given alias.

Aliases are useful for renaming fields in the output of a stage or for giving meaningful names to calculated values.

Parameters:

alias - The alias to assign to this expression.

Returns:

A new Selectable that wraps this expression and associates it with the provided alias.