2010-12-10 12:10:50 -05:00
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Licensed to the Apache Software Foundation (ASF) under one
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or more contributor license agreements. See the NOTICE file
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distributed with this work for additional information
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regarding copyright ownership. The ASF licenses this file
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to you under the Apache License, Version 2.0 (the
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"License"); you may not use this file except in compliance
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with the License. You may obtain a copy of the License at
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2018-10-02 08:32:32 -04:00
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2010-12-10 12:10:50 -05:00
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http://www.apache.org/licenses/LICENSE-2.0
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2010-12-10 12:10:50 -05:00
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Unless required by applicable law or agreed to in writing,
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software distributed under the License is distributed on an
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"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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KIND, either express or implied. See the License for the
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specific language governing permissions and limitations
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under the License.
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2010-12-10 12:10:50 -05:00
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-->
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<html>
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<head>
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<style type="text/css">
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code {
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color: brown;
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font-family: "Courier New";
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font-weight: bold;
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text-align: center;
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border: 1px solid black;
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background: lightgray;
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}
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tt {
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color: green;
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font-family: "Courier New";
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font-weight: bold;
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.warn {
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color:red;
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font-weight: bold;
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}
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</style>
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</head>
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<body>
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<h3>Instructions to build, deploy and run JEST demo</h3>
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<hr>
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<dl>
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<dt><b>Step 1: Download OpenJPA binary</b></dt>
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<dd> OpenJPA binaries are available from OpenJPA
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<a href="http://openjpa.apache.org/downloads.html" target="_blank">download site</a>.
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The nightly snapshots of version <tt>2.2.0</tt> that includes JEST are ready for
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<a href="https://repository.apache.org/snapshots/org/apache/openjpa/apache-openjpa/2.2.0-SNAPSHOT/"
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target="_blank">download</a> at lower half of the page.
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</dd>
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<br>
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<dt><b>Step 2: Get the JEST demo application</b></dt>
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<dd> A simple servlet based application is used to demonstrate JEST usage. This simple
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application merely defines a persistent unit with two persistent classes: <tt>Actor</tt>
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and <tt>Movie</tt>. The source code, persistence unit descriptor
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<tt>META-INF/persistence.xml</tt>, deployment descriptor <tt>WEB-INF/web.xml</tt>
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and Ant-based build script are available from OpenJPA svn repository.<br>
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Checkout these source files from the repository to a local directory.
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The following command:<br>
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<code>$ svn co https://svn.apache.org/repos/asf/openjpa/trunk/openjpa-examples/jest .</code><br>
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will bring the code to the current directory, for example.
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</dd>
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<br>
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<dt><b>Step 3: Configure for your environment</b></dt>
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<dd>
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The persistence unit descriptor <tt>META-INF/persistence.xml</tt> for the example application
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needs to be configured with database details. By default, it is configured for a MySQL database.
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<br>
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The build script requires the location of openjpa library and servlet API library jar.
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Edit <tt>build.properties</tt> file to set the variables to locations appropriate for
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your environment.
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</dd>
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<br>
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<dt><b>Step 4: Build the application</b></dt>
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<dd>
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Just run good old Ant.<br>
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<code> $ ant</code> </br>
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The build script <tt>buid.xml</tt> will compile few Java classes of the application, enhance
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the persistent classes and package them into a web archive <tt>demo.war</tt> for deployment.
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<br>
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The deployment descriptor <tt>WEB-INF/web.xml</tt> for this web archive specifies two servlets:
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one for this simple application and the other is JEST servlet. It may be instructive to take a
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look at the <tt>WEB-INF/web.xml</tt> to see how JEST is deployed.
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<br>
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The web archive packages the openjpa library as well in <tt>WEB-INF/lib</tt>. You may prefer
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other deployment options such as placing openjpa library in a shared library of your favorite
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application server or servlet container. You do need to modify the build script in that case.
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</dd>
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<br>
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<dt><b>Step 5: Deploy the web archive</b></dt>
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<dd>
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Once the web archive is ready, deploy it in an application server or servlet container by
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following standard practice. Needless to say, the database driver specified in
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<tt>META-INF/persistence.xml</tt> should also be available in the deployment environment.
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</dd>
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<br>
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<dt><b>Step 6: Browse with JEST</b></dt>
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<dd>
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Once the web archive has been deployed, you can verify by visiting the home page (and the only page)
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of the sample application in your browser<br>
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<code>http://localhost:8080/demo/</code> <br>
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The context path of the deployed servlet is <tt>demo</tt> as you may have noticed in <tt>WEB-INF/web.xml</tt>.
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The JEST servlet is just next door at<br>
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<code>http://localhost:8080/demo/jest/</code> <br>
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<span class="warn">notice the trailing forward slash in the URL above</span><br>
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Now you should see JEST home page with colorful icons. Enjoy browsing!
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2010-12-10 12:10:50 -05:00
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</dd>
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</dl>
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</body>
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</html>
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