Documentation Version: 3.3-EA - Publication Date : May 22, 2014

J2EE Integration

Hazelcast can be integrated into J2EE containers via Hazelcast Resource Adapter (hazelcast-ra-version.rar). After proper configuration, Hazelcast can participate in standard J2EE transactions.

<%@page import="javax.resource.ResourceException" %>
<%@page import="javax.transaction.*" %>
<%@page import="javax.naming.*" %>
<%@page import="javax.resource.cci.*" %>
<%@page import="java.util.*" %>
<%@page import="com.hazelcast.core.*" %>
<%@page import="com.hazelcast.jca.*" %>

<%
UserTransaction txn = null;
HazelcastConnection conn = null;
Config cfg = new Config();
HazelcastInstance hz = Hazelcast.newHazelcastInstance(cfg);

try {
    Context context = new InitialContext();
    txn = (UserTransaction) context.lookup("java:comp/UserTransaction");
    txn.begin();

    HazelcastConnectionFactory cf = (HazelcastConnectionFactory) context.lookup ("java:comp/env/HazelcastCF");
    conn = cf.getConnection();

    TransactionalMap<String, String> txMap = conn.getTransactionalMap("default");
    txMap.put("key", "value");

    txn.commit();
} catch (Throwable e) {
    if (txn != null) {
        try {
            txn.rollback();
        } catch (Exception ix) {ix.printStackTrace();};
    }
    e.printStackTrace();
} finally {
    if (conn != null) {
        try {
            conn.close();
        } catch (Exception ignored) {};
    }
}
%>