js.ea
Class EAHelper

java.lang.Object
  js.ea.EAHelper

public class EAHelper
extends java.lang.Object

Provides some important methods used by the event agent.

Author:

Johannes Testori

Constructor Summary

EAHelper()

Method Summary

static boolean	checkForSend(JSProducerEvent pEv, JSConsumerEvent cEv, java.lang.Object[] args) Checks if an event may be sent.
static EventAgent	getEventAgent(java.lang.Object o)
static VA	getVAforNA(NetworkAgent na, java.lang.String appId)
static boolean	isEntity(java.lang.Object o)
static boolean	isEventEnabled(int eventType, java.util.Properties props)

Methods inherited from class java.lang.Object

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

Constructor Detail

EAHelper

public EAHelper()

Method Detail

checkForSend

public static boolean checkForSend(JSProducerEvent pEv,
                                   JSConsumerEvent cEv,
                                   java.lang.Object[] args)

Checks if an event may be sent.

Parameters:

event - js.ea.JSProducerEvent

consumer - js.ea.JSEventConsumer

Returns:

true if the event can be produced

getEventAgent

public static EventAgent getEventAgent(java.lang.Object o)

Parameters:

o - java.lang.Object

Returns:

the EventAgent for the sepcified object, null if object has no reference to an EventAgent

getVAforNA

public static VA getVAforNA(NetworkAgent na,
                            java.lang.String appId)

Parameters:

na - js.na.NetworkAgent

Returns:

a VA that is on the specified NetworkAgent, or null, if none exists

isEntity

public static boolean isEntity(java.lang.Object o)

Parameters:

o - java.lang.Object

Returns:

true if the object can be used as source/destination of an event

isEventEnabled

public static boolean isEventEnabled(int eventType,
                                     java.util.Properties props)

Parameters:

eventType - int

props - java.util.Properties

Returns:

true if the specified eventType is enabled in the given properties.