Package com.yahoo.messagebus

Class EmptyReply

java.lang.Object

com.yahoo.messagebus.Routable

com.yahoo.messagebus.Reply

com.yahoo.messagebus.EmptyReply

public final class EmptyReply
extends Reply

The empty reply is the only concrete implementation of a message that is offered by the MessageBus. It is used to generate replies to events that occur within the messagebus, and since the messagebus by design knows nothing about the messages that have been implemented by the users it requires a class such as this.

Author:

Simon Thoresen Hult

Constructor Summary

Constructors

Constructor	Description
EmptyReply()

Method Summary

Modifier and Type	Method	Description
com.yahoo.text.Utf8String	getProtocol()	Implements the getProtocol() function of Routable to identify this reply as the reserved type.
int	getType()	Implements the getType() function of the root class Routable to identify this reply as the reserved type '0'.

Methods inherited from class com.yahoo.messagebus.Reply

addError, getError, getErrorCodes, getErrors, getMessage, getNumErrors, getRetryDelay, hasErrors, hasFatalErrors, setMessage, setRetryDelay, swapState

Methods inherited from class com.yahoo.messagebus.Routable

discard, getCallStack, getContext, getTrace, popHandler, pushHandler, setContext

Methods inherited from class java.lang.Object

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

Constructor Details

EmptyReply

public EmptyReply()

Method Details

getType

public int getType()

Implements the getType() function of the root class Routable to identify this reply as the reserved type '0'.

Specified by:

getType in class Routable

Returns:

The number '0'.

getProtocol

public com.yahoo.text.Utf8String getProtocol()

Implements the getProtocol() function of Routable to identify this reply as the reserved type. This is done by an empty string.

Specified by:

getProtocol in class Routable

Returns:

The string "".