package org.superbiz.bean;
import org.superbiz.resource.ManagerResource;
import jakarta.annotation.Resource;
import jakarta.ejb.Singleton;
@Singleton
public class Manager {
@Resource(name = "My Manager Team", type = ManagerResource.class)
private ManagerResource resource;
public String work() {
return "manage a resource of type " + resource.resourceType();
}
}
Resources Declared in Webapp
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Manager
ManagerResource
package org.superbiz.resource;
public class ManagerResource {
public String resourceType() {
return "team";
}
}
ManagerServlet
package org.superbiz.servlet;
import org.superbiz.bean.Manager;
import jakarta.ejb.EJB;
import jakarta.servlet.ServletException;
import jakarta.servlet.annotation.WebServlet;
import jakarta.servlet.http.HttpServlet;
import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;
import java.io.IOException;
@WebServlet(name = "manager servlet", urlPatterns = "/")
public class ManagerServlet extends HttpServlet {
@EJB
private Manager manager;
protected void service(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
resp.getOutputStream().print(manager.work());
}
}
ejb-jar.xml
<!--
Licensed to the Apache Software Foundation (ASF) under one or more
contributor license agreements. See the NOTICE file distributed with
this work for additional information regarding copyright ownership.
The ASF licenses this file to You under the Apache License, Version 2.0
(the "License"); you may not use this file except in compliance with
the License. You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
-->
<ejb-jar/>
service-jar.xml
<ServiceJar>
<ServiceProvider id="ManagerResource" service="Resource"
type="org.superbiz.resource.ManagerResource"
class-name="org.superbiz.resource.ManagerResource"/>
</ServiceJar>
resources.xml
<resources>
<Resource id="My Manager Team" type="org.superbiz.resource.ManagerResource" provider="org.superbiz#ManagerResource"/>
</resources>
web.xml
<!--
Licensed to the Apache Software Foundation (ASF) under one or more
contributor license agreements. See the NOTICE file distributed with
this work for additional information regarding copyright ownership.
The ASF licenses this file to You under the Apache License, Version 2.0
(the "License"); you may not use this file except in compliance with
the License. You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
-->
<web-app version="3.0" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"/>