Description Tom Mutdosch 2008-03-19 11:04:56 EDT

I have use cases where I am updating the OrmXml and PersistenceXml models with new values, and then want to save the model out.  I would like to request a nice API on the model to allow me to do this.  Currently I have to get a JPAFile on the resource and then get the resourceModel for that resource and save it out there:

// save resource out
IResource ormXMLFile = ormXml.resource();
JpaFile jpaFile = jpaProject.jpaFile((IFile)ormXMLFile);
OrmResource ormResource = ((OrmResourceModel) jpaFile.getResourceModel()).resource();
try {
	ormResource.save(null);
}

It would be nice to be able to call something like OrmXml.save().

Background on my use case:  I have a wizard that runs and updates your configuration files with user-specified schema information.  The orm.xml/persistence.xml are updated with the new schema: the orm.xml updated with the schema in the persistence-unit-defaults and a property in the persistence.xml, eg:  openjpa.jdbc.Schema="newschema"
These configuration files are likely not even open at that time, so I need to save the model contents to persist my changes; otherwise they are not saved.

Here's the current block of code that I am using to update the schema in the orm.xml:


PersistenceXml persistenceXml = ((BaseJpaContent) jpaProject.contextModel()).getPersistenceXml();
PersistenceUnit persistenceUnit =		persistenceXml.getPersistence().persistenceUnits().next();
for (Iterator<MappingFileRef> mappingFiles =	persistenceUnit.mappingFileRefs(); mappingFiles.hasNext();) {
    MappingFileRef mappingFileRef = mappingFiles.next();
	OrmXml ormXml = mappingFileRef.getOrmXml();
	if ( ormXml != null ) { 
		EntityMappings entityMappings =	ormXml.getEntityMappings();
		if ( entityMappings != null ) { 
            PersistenceUnitMetadata persistenceUnitMetadata = entityMappings.getPersistenceUnitMetadata(); // CHECKME: ensure these aren't null if they don't exist
			PersistenceUnitDefaults persistenceUnitDefaults = persistenceUnitMetadata.getPersistenceUnitDefaults();
			String schema = persistenceUnitDefaults.getSchema();
			if ( schema == null || !schema.equals( newSchemaName) ) {
				persistenceUnitDefaults.setSchema(newSchemaName);
				
				// save resource out
				IResource ormXMLFile = ormXml.resource();
				JpaFile jpaFile = jpaProject.jpaFile((IFile)ormXMLFile);
				OrmResource ormResource = ((OrmResourceModel) jpaFile.getResourceModel()).resource();
				try {
					ormResource.save(null);
				}
				...
				...