Package com.yahoo.vespa.indexinglanguage.expressions

Class EchoExpression

java.lang.Object

com.yahoo.vespa.objects.Selectable

com.yahoo.vespa.indexinglanguage.expressions.Expression

com.yahoo.vespa.indexinglanguage.expressions.EchoExpression

public final class EchoExpression
extends Expression

Author:

Simon Thoresen Hult

Constructor Summary

Constructors

Constructor	Description
EchoExpression()
EchoExpression(PrintStream out)

Method Summary

Modifier and Type	Method	Description
protected void	doExecute(ExecutionContext context)
boolean	equals(Object obj)
PrintStream	getOutputStream()
int	hashCode()
boolean	isMutating()	Returns whether this expression outputs a different value than what it gets as input.
String	toString()

Methods inherited from class com.yahoo.vespa.indexinglanguage.expressions.Expression

convertChildren, doResolve, execute, execute, execute, execute, execute, execute, execute, execute, execute, execute, execute, execute, fromString, fromString, getInputType, getOutputType, getOutputType, leastGeneralNonNullOf, leastGeneralOf, mostGeneralOf, newInstance, requireOutputType, requiresInput, resolve, resolve, resolve, resolve, resolve, resolve, resolve, resolve, resolve, setInputType, setInputType, setOutputType, setOutputType, setStatementOutput

Methods inherited from class com.yahoo.vespa.objects.Selectable

select, select, selectMembers

Methods inherited from class java.lang.Object

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

Constructor Details

EchoExpression

public EchoExpression()

EchoExpression

public EchoExpression(PrintStream out)

Method Details

isMutating

public boolean isMutating()

Description copied from class: Expression

Returns whether this expression outputs a different value than what it gets as input. Annotating a string value does not count as modifying it.

Overrides:

isMutating in class Expression

getOutputStream

public PrintStream getOutputStream()

doExecute

protected void doExecute(ExecutionContext context)

Specified by:

doExecute in class Expression

toString

public String toString()

Overrides:

toString in class Object

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object