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+
+ <div class="section"><h2>Configuration through a hibernate.properties-File<a name="Configuration_through_a_hibernate.properties-File"></a></h2>
+ <p>
+ The most simple way to configure the plugin is, to put all the
+ hibernate-configuration in a <b>hibernate.properties</b>-file on your
+ classpath. Put the file in the <tt>resources</tt>-folder. Maven will put
+ it in the <tt>class</tt>-folder of your webapp, where it will be picked up
+ by this plugin as well as by Hibernate 4.
+ </p>
+ <p>
+ Doing so, the only additionally configuration needed, to activat the plugin
+ is the following entry in the <tt>plugins</tt>-section of your <tt>pom.xml</tt>:
+ </p>
+ <div class="prettyprint linenums lang-html"><pre>
+<plugin>
+ <groupId>de.juplo</groupId>
+ <artifactId>hibernate-maven-plugin</artifactId>
+ <version>${project.version}</version>
+ <executions>
+ <execution>
+ <goals>
+ <goal>export</goal>
+ </goals>
+ </execution>
+ </executions>
+</plugin></pre></div>
+ <p>
+ But be aware, that in this case the database-url, that is
+ build in the application is the same that is used while testing, where
+ the database is droped and recreated by the plugin.
+ Because of that,
+ <b>
+ you should never fire up this configuration on your production
+ system, or your database might be erased!
+ </b>
+ </p>
+ <p>
+ A better approach is, to specify a different url for testing like in the
+ following snippet:
+ </p>
+ <div class="prettyprint linenums lang-html"><pre>
+<plugin>
+ <groupId>de.juplo</groupId>
+ <artifactId>hibernate-maven-plugin</artifactId>
+ <version>${project.version}</version>
+ <executions>
+ <execution>
+ <goals>
+ <goal>export</goal>
+ </goals>
+ </execution>
+ </executions>
+ <configuration>
+ <url><![CDATA[jdbc:mysql://localhost/test-db]]></url>
+ </configuration>
+</plugin></pre></div>
+ <p>
+ Configuration properties, that are set in the <tt>configuration</tt>-section
+ of the plugin-configuration cannnot be overwritten elsewere (for details
+ see <a href="#precedence">Configuration-Method-Precedence</a>).
+ You never can overwrite them by accident when specifying a property on
+ the commandline or in your <tt>settings.xml</tt>.
+ </p>
+ </div><div class="section"><h2>Configuration through maven-properties<a name="Configuration_through_maven-properties"></a></h2>
+ <p>
+ Alternatively, it is possible, to configure the plugin via maven-properties.
+ Each relevant configuration-option has a corresponding maven-property
+ (for a full list see the <a href="./export-mojo.html">Documentation of the export-Mojo</a>).
+ These are named after the
+ <a class="externalLink" href="http://docs.jboss.org/hibernate/orm/4.1/manual/en-US/html_single/#configuration-hibernatejdbc">Hibernate JDBC Properties</a>:
+ </p>
+ <ul>
+ <li><tt>hibernate.connection.driver_class</tt></li>
+ <li><tt>hibernate.dialect</tt></li>
+ <li><tt>hibernate.connection.url</tt></li>
+ <li><tt>hibernate.connection.username</tt></li>
+ <li><tt>hibernate.connection.password</tt></li>
+ </ul>
+ <p>
+ So, instead of writing the hibernate-configuration in the properties-file,
+ like above, you could put it in the <tt>properties</tt>-section of your
+ <tt>pom.xml</tt>.
+ </p>
+ <p>
+ Thogether with the plugin-definition from above, the following would
+ be a complete configuration (again, the database-url was overwritten in
+ the plugin-configuration, to be sure to have a separate database for
+ testing):
+ </p>
+ <div class="prettyprint linenums lang-html"><pre>
+<properties>
+ <hibernate.connection.driver_class>org.hsqldb.jdbcDriver</hibernate.connection.driver_class>
+ <hibernate.dialect>org.hibernate.dialect.HSQLDialect</hibernate.dialect>
+ <hibernate.connection.url><![CDATA[jdbc:hsqldb:res:org.my.path.production_db]]></hibernate.connection.url>
+ <hibernate.connection.username>sa</hibernate.connection.username>
+ <hibernate.connection.password></hibernate.connection.password>
+</properties>
+
+...
+
+<plugins>
+
+ ...
+
+ <plugin>
+ <groupId>de.juplo</groupId>
+ <artifactId>hibernate-maven-plugin</artifactId>
+ <version>${project.version}</version>
+ <executions>
+ <execution>
+ <goals>
+ <goal>export</goal>
+ </goals>
+ </execution>
+ </executions>
+ <configuration>
+ <url><![CDATA[jdbc:hsqldb:target/db/testdb;shutdown=true]]></url>
+ </configuration>
+ </plugin>
+
+<plugins></pre></div>
+ </div><div class="section"><h2>Configuration through the plugin-configuration<a name="Configuration_through_the_plugin-configuration"></a></h2>
+ <p>
+ A third way for configuring the plugin is the plugin-configuration.
+ The relevant configuration-parameters are:
+ </p>
+ <ul>
+ <li><tt>driver</tt></li>
+ <li><tt>dialect</tt></li>
+ <li><tt>url</tt></li>
+ <li><tt>username</tt></li>
+ <li><tt>password</tt></li>
+ </ul>
+ <p>
+ The equivalent of the configuration from the last section would look
+ like this:
+ </p>
+ <div class="prettyprint linenums lang-html"><pre>
+<plugin>
+ <groupId>de.juplo</groupId>
+ <artifactId>hibernate-maven-plugin</artifactId>
+ <version>${project.version}</version>
+ <executions>
+ <execution>
+ <goals>
+ <goal>export</goal>
+ </goals>
+ </execution>
+ </executions>
+ <configuration>
+ <driver>org.hsqldb.jdbcDriver</driver>
+ <dialect>org.hibernate.dialect.HSQLDialect</dialect>
+ <url><![CDATA[jdbc:hsqldb:target/db/fotos;shutdown=true]]></url>
+ <username>sa</username>
+ <password></password>
+ </configuration>
+</plugin></pre></div>
+ <p>
+ The parameter <b>hibernateProperties</b> (name of the hibernate-properties-file
+ to use, defaults to <b>hibernate.properties</b>) can only be configured through
+ this approach.
+ </p>
+ <p>
+ For more explanations, see the
+ <a href="./export-mojo.html">Documentation of the export-Mojo</a>.
+ </p>
+ </div><div class="section"><h2 id="precedence">Configuration-Method-Precedence</h2>
+ <p>
+ The configuration is gathered in a fix order:
+ </p>
+ <ol style="list-style-type: decimal">
+ <li><tt>hibernate.properties</tt></li>
+ <li><tt>hibernate.cfg.xml</tt></li>
+ <li><tt>persistence.xml</tt></li>
+ <li>maven-properties</li>
+ <li>plugin-configuration</li>
+ </ol>
+ <p>
+ If you are in doubt about where a configuration-value comes from, run
+ maven with the <a href="./debugging.html">debug-output</a> enabled: <tt>mvn -X hibernate:export</tt>
+ and be aware, that maven-properties can be overwitten on the command-line,
+ in your <tt>~/.m2/settings.xml</tt> and in a profile.
+ </p>
+ <p>
+ The plugin-configuration comes last and overwrites everything else.
+ That way, you can be sure, that a configuration-value, that is
+ specified in the plugin-configuration will never be overwritten by any
+ other configuration-method.
+ </p>
+ <p>
+ If you need to overwrite plugin-configuration-values with
+ maven-properties, you can use maven-properties in the plugin-configuration:
+ </p>
+ <div class="prettyprint linenums lang-html"><pre>
+<plugin>
+ <groupId>de.juplo</groupId>
+ <artifactId>hibernate-maven-plugin</artifactId>
+ <version>${project.version}</version>
+ <executions>
+ <execution>
+ <goals>
+ <goal>export</goal>
+ </goals>
+ </execution>
+ </executions>
+ <configuration>
+ <password>${my-password-property}</password>
+ </configuration>
+</plugin></pre></div>
+ </div>
+
+ </article>
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