public class EventListenerFilter extends Object implements EventFilter, IdentifiedDataSerializable
MapListener
by filtering events according the implemented MapListener
sub-interfaces.
Specifically, for example, if a listener is registered via an implementation like this:
public class MyMapListener implements EntryAddedListener, EntryRemovedListener {
...
}
That listener will only be notified for EntryEventType.ADDED
and EntryEventType.REMOVED
events.
Other events, like EntryEventType.EVICTED
or EntryEventType.EXPIRED
, will not be sent over wire.
This may help to reduce load on eventing system and network.MapListenerFlagOperator.setAndGetListenerFlags(ListenerAdapter)
,
MapListener
Constructor and Description |
---|
EventListenerFilter() |
EventListenerFilter(int listenerFlags,
EventFilter eventFilter) |
Modifier and Type | Method and Description |
---|---|
boolean |
eval(Object object)
Returns
true if the event matches this filter. |
EventFilter |
getEventFilter() |
int |
getFactoryId()
Returns DataSerializableFactory factory ID for this class.
|
int |
getId()
Returns type identifier for this class.
|
void |
readData(ObjectDataInput in)
Reads fields from the input stream
|
String |
toString() |
void |
writeData(ObjectDataOutput out)
Writes object fields to output stream
|
public EventListenerFilter()
public EventListenerFilter(int listenerFlags, EventFilter eventFilter)
public void writeData(ObjectDataOutput out) throws IOException
DataSerializable
writeData
in interface DataSerializable
out
- outputIOException
- if an I/O error occurs. In particular,
an IOException
may be thrown if the
output stream has been closed.public void readData(ObjectDataInput in) throws IOException
DataSerializable
readData
in interface DataSerializable
in
- inputIOException
- if an I/O error occurs. In particular,
an IOException
may be thrown if the
input stream has been closed.public boolean eval(Object object)
EventFilter
true
if the event
matches this filter.eval
in interface EventFilter
public EventFilter getEventFilter()
public int getFactoryId()
IdentifiedDataSerializable
getFactoryId
in interface IdentifiedDataSerializable
public int getId()
IdentifiedDataSerializable
getId
in interface IdentifiedDataSerializable
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