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POHow to repeat a particular execution multiple times
 

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    <p>The following snippet generates create / drop sql for a particular database, whenever there is a modification to JPA entity classes.</p> <p>How do I perform something equivalent of a 'for' operation where-in the following code can be used to generate sql for all supported databases (e.g. H2, MySQL, Postgres)</p> <p>Currently I have to modify db.groupId, db.artifactId, db.driver.version everytime to generate the sql files</p> <pre><code> &lt;plugin&gt; &lt;groupId&gt;org.codehaus.mojo&lt;/groupId&gt; &lt;artifactId&gt;hibernate3-maven-plugin&lt;/artifactId&gt; &lt;version&gt;${hibernate3-maven-plugin.version}&lt;/version&gt; &lt;executions&gt; &lt;execution&gt; &lt;id&gt;create schema&lt;/id&gt; &lt;phase&gt;process-test-resources&lt;/phase&gt; &lt;goals&gt; &lt;goal&gt;hbm2ddl&lt;/goal&gt; &lt;/goals&gt; &lt;configuration&gt; &lt;componentProperties&gt; &lt;persistenceunit&gt;${app.module}&lt;/persistenceunit&gt; &lt;drop&gt;false&lt;/drop&gt; &lt;create&gt;true&lt;/create&gt; &lt;outputfilename&gt;${app.sql}-create.sql&lt;/outputfilename&gt; &lt;/componentProperties&gt; &lt;/configuration&gt; &lt;/execution&gt; &lt;execution&gt; &lt;id&gt;drop schema&lt;/id&gt; &lt;phase&gt;process-test-resources&lt;/phase&gt; &lt;goals&gt; &lt;goal&gt;hbm2ddl&lt;/goal&gt; &lt;/goals&gt; &lt;configuration&gt; &lt;componentProperties&gt; &lt;persistenceunit&gt;${app.module}&lt;/persistenceunit&gt; &lt;drop&gt;true&lt;/drop&gt; &lt;create&gt;false&lt;/create&gt; &lt;outputfilename&gt;${app.sql}-drop.sql&lt;/outputfilename&gt; &lt;/componentProperties&gt; &lt;/configuration&gt; &lt;/execution&gt; &lt;/executions&gt; &lt;dependencies&gt; &lt;dependency&gt; &lt;groupId&gt;org.hibernate&lt;/groupId&gt; &lt;artifactId&gt;hibernate-core&lt;/artifactId&gt; &lt;version&gt;${hibernate-core.version}&lt;/version&gt; &lt;/dependency&gt; &lt;dependency&gt; &lt;groupId&gt;org.slf4j&lt;/groupId&gt; &lt;artifactId&gt;slf4j-api&lt;/artifactId&gt; &lt;version&gt;${slf4j-api.version}&lt;/version&gt; &lt;/dependency&gt; &lt;dependency&gt; &lt;groupId&gt;org.slf4j&lt;/groupId&gt; &lt;artifactId&gt;slf4j-nop&lt;/artifactId&gt; &lt;version&gt;${slf4j-nop.version}&lt;/version&gt; &lt;/dependency&gt; &lt;dependency&gt; &lt;groupId&gt;${db.groupId}&lt;/groupId&gt; &lt;artifactId&gt;${db.artifactId}&lt;/artifactId&gt; &lt;version&gt;${db.driver.version}&lt;/version&gt; &lt;/dependency&gt; &lt;/dependencies&gt; &lt;configuration&gt; &lt;components&gt; &lt;component&gt; &lt;name&gt;hbm2cfgxml&lt;/name&gt; &lt;implementation&gt;annotationconfiguration&lt;/implementation&gt; &lt;/component&gt; &lt;component&gt; &lt;name&gt;hbm2dao&lt;/name&gt; &lt;implementation&gt;annotationconfiguration&lt;/implementation&gt; &lt;/component&gt; &lt;component&gt; &lt;name&gt;hbm2ddl&lt;/name&gt; &lt;implementation&gt;jpaconfiguration&lt;/implementation&gt; &lt;outputDirectory&gt;src/main/sql&lt;/outputDirectory&gt; &lt;/component&gt; &lt;component&gt; &lt;name&gt;hbm2doc&lt;/name&gt; &lt;implementation&gt;annotationconfiguration&lt;/implementation&gt; &lt;/component&gt; &lt;component&gt; &lt;name&gt;hbm2hbmxml&lt;/name&gt; &lt;implementation&gt;annotationconfiguration&lt;/implementation&gt; &lt;/component&gt; &lt;component&gt; &lt;name&gt;hbm2java&lt;/name&gt; &lt;implementation&gt;annotationconfiguration&lt;/implementation&gt; &lt;/component&gt; &lt;component&gt; &lt;name&gt;hbm2template&lt;/name&gt; &lt;implementation&gt;annotationconfiguration&lt;/implementation&gt; &lt;/component&gt; &lt;/components&gt; &lt;/configuration&gt; &lt;/plugin&gt; </code></pre>
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