From 33613a85afc4b1481367fbe92a17ee59c240250b Mon Sep 17 00:00:00 2001
From: Sven Eisenhauer <sven@sven-eisenhauer.net>
Date: Fri, 10 Nov 2023 15:11:48 +0100
Subject: add new repo

---
 .../src/examples/session/stateful_dd/Count.java    | 24 +++++++++
 .../examples/session/stateful_dd/CountBean.java    | 47 ++++++++++++++++
 .../session/stateful_dd/CountCallbacks.java        | 43 +++++++++++++++
 .../examples/session/stateful_dd/CountClient.java  | 63 ++++++++++++++++++++++
 .../session/stateful_dd/META-INF/ejb-jar.xml       | 35 ++++++++++++
 .../src/examples/session/stateful_dd/build.xml     | 32 +++++++++++
 6 files changed, 244 insertions(+)
 create mode 100644 Master/Reference Architectures and Patterns/EJB 3.0 Code/Gerald Examples/src/examples/session/stateful_dd/Count.java
 create mode 100644 Master/Reference Architectures and Patterns/EJB 3.0 Code/Gerald Examples/src/examples/session/stateful_dd/CountBean.java
 create mode 100644 Master/Reference Architectures and Patterns/EJB 3.0 Code/Gerald Examples/src/examples/session/stateful_dd/CountCallbacks.java
 create mode 100644 Master/Reference Architectures and Patterns/EJB 3.0 Code/Gerald Examples/src/examples/session/stateful_dd/CountClient.java
 create mode 100644 Master/Reference Architectures and Patterns/EJB 3.0 Code/Gerald Examples/src/examples/session/stateful_dd/META-INF/ejb-jar.xml
 create mode 100644 Master/Reference Architectures and Patterns/EJB 3.0 Code/Gerald Examples/src/examples/session/stateful_dd/build.xml

(limited to 'Master/Reference Architectures and Patterns/EJB 3.0 Code/Gerald Examples/src/examples/session/stateful_dd')

diff --git a/Master/Reference Architectures and Patterns/EJB 3.0 Code/Gerald Examples/src/examples/session/stateful_dd/Count.java b/Master/Reference Architectures and Patterns/EJB 3.0 Code/Gerald Examples/src/examples/session/stateful_dd/Count.java
new file mode 100644
index 0000000..f20ae5e
--- /dev/null
+++ b/Master/Reference Architectures and Patterns/EJB 3.0 Code/Gerald Examples/src/examples/session/stateful_dd/Count.java	
@@ -0,0 +1,24 @@
+package examples.session.stateful_dd;
+
+/**
+ * The business interface - a plain Java interface with only business methods.
+ */
+public interface Count {
+    
+    /**
+     * Increments the counter by 1
+     */
+    public int count();
+    
+    /**
+     * Sets the counter to val
+     * 
+     * @param val
+     */
+    public void set(int val);
+    
+    /**
+     * removes the counter
+     */
+    public void remove();
+}
diff --git a/Master/Reference Architectures and Patterns/EJB 3.0 Code/Gerald Examples/src/examples/session/stateful_dd/CountBean.java b/Master/Reference Architectures and Patterns/EJB 3.0 Code/Gerald Examples/src/examples/session/stateful_dd/CountBean.java
new file mode 100644
index 0000000..0a2ab2c
--- /dev/null
+++ b/Master/Reference Architectures and Patterns/EJB 3.0 Code/Gerald Examples/src/examples/session/stateful_dd/CountBean.java	
@@ -0,0 +1,47 @@
+package examples.session.stateful_dd;
+
+import java.io.Serializable;
+
+/**
+ * A Stateful Session Bean Class that shows the basics of 
+ * how to write a stateful session bean.
+ * 
+ * This Bean is initialized to some integer value. It has a 
+ * business method which increments the value.
+ *
+ * The annotations below declare that:
+ * <ul>
+ * <li>this is a Stateful Session Bean
+ * <li>the bean's remote business interface is <code>Count</code>
+ * <li>any lifecycle callbacks go to the class <code>CountCallbacks</code>
+ * </ul>
+ */
+
+public class CountBean implements Count {
+
+    /** The current counter is our conversational state. */
+    private int val;
+
+    /**
+     * The count() business method.
+     */
+    public int count() {
+        System.out.println("count()");
+        return ++val;
+    }
+
+    /**
+     * The set() business method.
+     */
+    public void set(int val) {
+        this.val = val;
+        System.out.println("set()");
+    }
+
+    /**
+     */
+    public void remove() {
+        System.out.println("remove()");
+    }
+
+}
diff --git a/Master/Reference Architectures and Patterns/EJB 3.0 Code/Gerald Examples/src/examples/session/stateful_dd/CountCallbacks.java b/Master/Reference Architectures and Patterns/EJB 3.0 Code/Gerald Examples/src/examples/session/stateful_dd/CountCallbacks.java
new file mode 100644
index 0000000..f2ed8b0
--- /dev/null
+++ b/Master/Reference Architectures and Patterns/EJB 3.0 Code/Gerald Examples/src/examples/session/stateful_dd/CountCallbacks.java	
@@ -0,0 +1,43 @@
+package examples.session.stateful_dd;
+
+import javax.ejb.InvocationContext;
+
+/**
+ * This class is a lifecycle callback interceptor for the Count bean. 
+ * The callback methods simply print a message when invoked by 
+ * the container.
+ */
+public class CountCallbacks {
+    
+    public CountCallbacks() {}
+    
+    /**
+     * Called by the container after construction
+     */
+    public void construct(InvocationContext ctx) {
+        System.out.println("cb:construct()");
+    }
+    
+    /**
+     * Called by the container after activation
+     */
+    public void activate(InvocationContext ctx) {
+        System.out.println("cb:activate()");
+    }
+    
+    /**
+     * Called by the container before passivation
+     */
+    public void passivate(InvocationContext ctx) {
+        System.out.println("cb:passivate()");
+    }
+    
+    /**
+     * Called by the container before destruction
+     */
+
+    public void destroy(InvocationContext ctx) {
+        System.out.println("cb:destroy()");
+    }
+    
+}
diff --git a/Master/Reference Architectures and Patterns/EJB 3.0 Code/Gerald Examples/src/examples/session/stateful_dd/CountClient.java b/Master/Reference Architectures and Patterns/EJB 3.0 Code/Gerald Examples/src/examples/session/stateful_dd/CountClient.java
new file mode 100644
index 0000000..46fb0cc
--- /dev/null
+++ b/Master/Reference Architectures and Patterns/EJB 3.0 Code/Gerald Examples/src/examples/session/stateful_dd/CountClient.java	
@@ -0,0 +1,63 @@
+package examples.session.stateful_dd;
+
+import javax.naming.*;
+
+/**
+ * This class is a simple client for a stateful session bean.
+ *
+ * To illustrate how passivation works, configure your EJB server
+ * to allow only 2 stateful session beans in memory. (Consult your 
+ * vendor documentation for details on how to do this.) We create 
+ * 3 beans in this example to see how and when beans are passivated.
+ */
+public class CountClient {
+
+    public static final int noOfClients = 3;
+
+    public static void main(String[] args) {
+        try {
+            /* Get a reference to the bean */
+            Context ctx = new InitialContext();
+
+            /* An array to hold the Count beans */
+            Count count[] = new Count[noOfClients];
+            int countVal = 0;
+
+            /* Create and count() on each member of array */
+            System.out.println("Instantiating beans...");
+            for (int i = 0; i < noOfClients; i++) {
+                //count[i] = (Count) ctx.lookup("StatefulCount" );
+                count[i] = (Count) ctx.lookup(Count.class.getName());
+                /* initialize each bean to the current count value */
+                count[i].set(countVal);
+
+                /* Add 1 and print */
+                countVal = count[i].count();
+                System.out.println(countVal);
+
+                /*  Sleep for 1/2 second */
+                Thread.sleep(100);
+            }
+
+            /*
+             * Let's call count() on each bean to  make sure the 
+             * beans were passivated and activated properly.
+             */
+            System.out.println("Calling count() on beans...");
+            for (int i = 0; i < noOfClients; i++) {
+
+                /* Add 1 and print */
+                countVal = count[i].count();
+                System.out.println(countVal);
+
+                /* call remove to let the container dispose of the bean */
+                count[i].remove();
+
+                /*  Sleep for 1/2 second */
+                Thread.sleep(50);
+            }
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+    }
+}
diff --git a/Master/Reference Architectures and Patterns/EJB 3.0 Code/Gerald Examples/src/examples/session/stateful_dd/META-INF/ejb-jar.xml b/Master/Reference Architectures and Patterns/EJB 3.0 Code/Gerald Examples/src/examples/session/stateful_dd/META-INF/ejb-jar.xml
new file mode 100644
index 0000000..a483584
--- /dev/null
+++ b/Master/Reference Architectures and Patterns/EJB 3.0 Code/Gerald Examples/src/examples/session/stateful_dd/META-INF/ejb-jar.xml	
@@ -0,0 +1,35 @@
+<?xml version="1.0" encoding="UTF-8" ?> 
+<ejb-jar xmlns="http://java.sun.com/xml/ns/javaee" version="3.0" 
+  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/ejb-jar_3_0.xsd">
+  <description>Stateful Session Bean Example</description> 
+  <display-name>Stateful Session Bean Example</display-name> 
+ <enterprise-beans>
+   <session>
+     <ejb-name>CountBean</ejb-name>
+     <business-remote>examples.session.stateful_dd.Count</business-remote>
+     <ejb-class>examples.session.stateful_dd.CountBean</ejb-class> 
+     <session-type>Stateful</session-type> 
+     <transaction-type>Container</transaction-type> 
+   </session>
+ </enterprise-beans>
+ 
+ <interceptors>
+   <interceptor>
+       <interceptor-class>examples.session.stateful_dd.CountCallbacks
+       </interceptor-class>
+       <post-construct><lifecycle-callback-method>construct</lifecycle-callback-method></post-construct>
+       <post-activate><lifecycle-callback-method>activate</lifecycle-callback-method></post-activate>
+       <pre-passivate><lifecycle-callback-method>passivate</lifecycle-callback-method></pre-passivate>
+<!--      <pre-destroy><lifecycle-callback-method>destroy</lifecycle-callback-method></pre-destroy>  -->
+    </interceptor>
+  </interceptors> 
+  
+  <assembly-descriptor>
+    <interceptor-binding>
+      <ejb-name>CountBean</ejb-name>
+      <interceptor-class>examples.session.stateful_dd.CountCallbacks
+      </interceptor-class>
+    </interceptor-binding>  
+  </assembly-descriptor>  
+</ejb-jar>
\ No newline at end of file
diff --git a/Master/Reference Architectures and Patterns/EJB 3.0 Code/Gerald Examples/src/examples/session/stateful_dd/build.xml b/Master/Reference Architectures and Patterns/EJB 3.0 Code/Gerald Examples/src/examples/session/stateful_dd/build.xml
new file mode 100644
index 0000000..8c9181a
--- /dev/null
+++ b/Master/Reference Architectures and Patterns/EJB 3.0 Code/Gerald Examples/src/examples/session/stateful_dd/build.xml	
@@ -0,0 +1,32 @@
+<?xml version="1.0"?>
+<!DOCTYPE project [ <!ENTITY include SYSTEM "../../../../etc/common.xml"> ]>
+	
+<project name="ejb3-examples-session-statefull_dd" default="all" 
+	basedir="../../../..">
+	
+	<!--		basic  settings          -->
+	<property name="src.dir" value="${basedir}/src"/>
+	<property name="build.dir" value="${basedir}/build"/>
+	<property name="build.classes.dir" value="${build.dir}/classes"/>
+	<property name="appname" value="StatefulSession-Hello"/>
+	<property name="client.class" value="examples.session.stateful_dd.CountClient"/>
+	<property name="app.pkg" value="examples/session/stateful_dd"/>
+	<property name="package" value="${app.pkg}"/>
+	<property name="pack.dir" value="${src.dir}/${app.pkg}"/>
+	<property name="jar.pkg" value="examples/session/stateful_dd"/>
+	
+	  <!--	Include common.xml	       -->
+	  &include;
+
+	  <target name="jar" depends="compile_common, create_ejbjar_common"/>
+	  <target name="all" depends="compile_common, jar, deploy"/>
+
+	  <target name="deploy" depends="jar">
+		  <copy file="${assemble.ejbjar}/${ejbjar}" 
+		  	todir="${deploy.dir}"/>
+	  </target>
+	
+      <target name="clean" depends="undeploy_common, clean_common" />
+		
+</project>
+
-- 
cgit v1.2.3