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HelloSingleton.java
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HelloSingleton.java
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/*
* Copyright (c) 2010, 2018 Oracle and/or its affiliates. All rights reserved.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v. 2.0, which is available at
* http://www.eclipse.org/legal/epl-2.0.
*
* This Source Code may also be made available under the following Secondary
* Licenses when the conditions for such availability set forth in the
* Eclipse Public License v. 2.0 are satisfied: GNU General Public License,
* version 2 with the GNU Classpath Exception, which is available at
* https://www.gnu.org/software/classpath/license.html.
*
* SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
*/
package com.acme;
import jakarta.ejb.*;
import jakarta.annotation.*;
import org.omg.CORBA.ORB;
@Singleton
@Startup
@EJB(name = "java:app/env/AS2", beanName = "HelloStateless", beanInterface = HelloRemote.class)
@DependsOn("Singleton2")
public class HelloSingleton implements Hello {
@Resource
SessionContext sessionCtx;
@Resource(name = "java:module/env/MORB2")
private ORB orb;
@Resource(name = "java:app/env/myString")
protected String myString;
@EJB(name = "java:app/env/appLevelEjbRef")
private Hello hello;
String appName;
String moduleName;
@PostConstruct
private void init() {
System.out.println("HelloSingleton::init()");
System.out.println("myString = '" + myString + "'");
if ((myString == null) || !(myString.equals("myString"))) {
throw new RuntimeException("Invalid value " + myString + " for myString");
}
appName = (String) sessionCtx.lookup("java:app/AppName");
moduleName = (String) sessionCtx.lookup("java:module/ModuleName");
ORB orb1 = (ORB) sessionCtx.lookup("java:module/MORB1");
ORB orb2 = (ORB) sessionCtx.lookup("java:module/env/MORB2");
System.out.println("AppName = " + appName);
System.out.println("ModuleName = " + moduleName);
}
public String hello() {
System.out.println("HelloSingleton::hello()");
return "hello, world!\n";
}
@PreDestroy
private void destroy() {
System.out.println("HelloSingleton::destroy()");
}
}