Reference Guide

if (listener != null) {
distMap.unregister(listener);
}
}
}
SimpleEntryListener.java
package com.hp.dcord_test.impl;
import com.hp.util.dcord.EntryEvent;
import com.hp.util.dcord.EntryListener;
public class SimpleEntryListener implements EntryListener<String, String> {
@Override
public void added(EntryEvent<String, String> entry) {
// Any action to be taken on receipt of a message notification.
// In this example, there is a simple print
String string = "Added notification recieved";
System.out.println(string);
}
@Override
public void updated(EntryEvent<String, String> entry) {
// Any action to be taken on receipt of a message notification.
// In this example, there is a simple print
String string = "Updated notification recieved";
System.out.println(string);
}
@Override
public void removed(EntryEvent<String, String> entry) {
// Any action to be taken on receipt of a message notification.
// In this example, there is a simple print
String string = "Removed notification recieved";
System.out.println(string);
}
}
Performance Considerations
Keep in mind the following when using the distributed coordination services:
1. Java objects can be written directly to distributed coordination services.
- There is no need to serialize the data before it is written to these structures.
Thecoordination service will serialize/deserialize the data as it is distributed in the team
using the serializer you have registered.
2. Minimize other in-memory local caches for distributed map data.
74