org.ikasan.framework.component.routing
Class SingleResultRouter

java.lang.Object
  org.ikasan.framework.component.routing.SingleResultRouter

All Implemented Interfaces:

Router, FlowComponent

Direct Known Subclasses:

AbstractFilteringRouter, ContainsPayloadRouter, FirstPayloadAttributeRouter, XMLValidatorRouter, XPathSelectorRouter

public abstract class SingleResultRouter
extends Object
implements Router

Simple abstraction for Router implementations that are only ever to return a single result

Author:

Ikasan Development Team

Field Summary

Fields inherited from interface org.ikasan.framework.component.routing.Router

DEFAULT_RESULT

Constructor Summary

SingleResultRouter()

Method Summary

protected abstract String	evaluate(Event event) Returns a single value as a result of evaluating the Event
List<String>	onEvent(Event event) Implementation of Router.onEvent(Event)

Methods inherited from class java.lang.Object

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

Constructor Detail

SingleResultRouter

public SingleResultRouter()

Method Detail

onEvent

public List<String> onEvent(Event event)
                     throws RouterException

Implementation of Router.onEvent(Event)

Specified by:

onEvent in interface Router

Parameters:

event - The event to route

Returns:

List of paths

Throws:

RouterException - Exception if we could bnot route the event

evaluate

protected abstract String evaluate(Event event)
                            throws RouterException

Returns a single value as a result of evaluating the Event

Parameters:

event - to evaluate

Returns:

result

Throws:

RouterException - Exception if we could not route the event