ValidationConfiguration

+    package de.juplo.plugins.hibernate4;
+
+    import javax.validation.Validation;
+
+    import org.hibernate.cfg.Configuration;
+    import org.hibernate.cfg.beanvalidation.TypeSafeActivatorAccessor;
+    import org.hibernate.dialect.Dialect;
+    import org.hibernate.metamodel.source.MappingException;
+
+
+    /**
+     * This integration is usually performed by BeanValidationIntegrator.
+     * Unfortunately, that integration will only be activated upon
+     * initialization of the ServiceRegistry, which initializes
+     * DatasourceConnectionProviderImpl, which looks up the datasource,
+     * which requires a JNDI context ...
+     * We therefore reimplement the relevant parts of BeanValidatorIntegrator.
+     * Since that must occur after secondPassCompile(), which is invoked by
+     * Configuration.generateSchemaCreationScript, which is invoked by
+     * SchemaExport, some fancy subclassing is needed to invoke the integration
+     * at the right time.
+     * @author Mark Robinson <mark@mrobinson.ca>
+     * @author Frank Schimmel <frank.schimmel@cm4all.com>
+     */
+    public class ValidationConfiguration extends Configuration
+    {
+      private static final long serialVersionUID = 1L;
+
+
+      @Override
+      protected void secondPassCompile() throws MappingException
+      {
+        super.secondPassCompile();
+
+        try
+        {
+          TypeSafeActivatorAccessor.applyRelationalConstraints(
+              Validation.buildDefaultValidatorFactory(),
+              classes.values(),
+              getProperties(),
+              ((Class<Dialect>)Class.forName(getProperty(Hbm2DdlMojo.DIALECT))).newInstance()
+              );
+        }
+        catch (Exception e)
+        {
+          throw new RuntimeException(e);
+        }
+      }
+
+      public String getTypeDefs()
+      {
+        return typeDefs.entrySet().toString();
+      }
+    }
+