Prefilter conditions on event context data

The default ANDFilter also supports filter conditions on any data from event context. All filter conditions using event context should be specified as a name value pair in a Java Map object.

Methods supported

The value object EventChannel supports the following methods to specify the filter conditions on primary data, or using event context data.

EventChannel chn = new EventChannel("sbmTopic", EventChannel.TOPIC);
Chn.addFilterCondition(EventChannel.EVENT_TYPE, "BP Server,BPM Events");
Chn.addFilterCondition(EventChannel.EVENT_VALUES, "P_CREATED,P_INSTALLED, P_REMOVED");
Chn.addFilterCondition(EventChannel.PT_NAMES, "Hiring,Approval,Assignment");
Chn.addFilterCondition(EventChannel.WS_NAMES, "worstep1,workstep2,workstep3");
Chn.addFilterCondition(EventChannel.EVENT_CONTEXT, Map nameValuePair);
chn.removeFilterCondition(EventChannel.EVENT_TYPE);
chn.removeFilterCondition(EventChannel.EVENT_VALUES);
chn.removeFilterCondition(EventChannel.PT_NAMES);

If a context filter is to be set for EventChannel.EVENT_CONTEXT key, then its value should be Map. For example, in the above code, consider

Chn.addFilterCondition(EventChannel.EVENT_CONTEXT, Map nameValuePair);

HashMap contextFilterMap = new HashMap();
Vector PI_Values = new Vector();
PI_Values.add(new Long("1428"));
contextFilterMap.put("CTX.PROCESSINSTANCEID", PI_Values);
eventChannel.addFilterCondition(EventChannel.EVENT_CONTEXT, contextFilterMap);