MoyaDescriptorCustomizer.java
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package fi.codecrew.moya.database.eclipselink;
import java.util.List;
import org.eclipse.persistence.config.DescriptorCustomizer;
import org.eclipse.persistence.descriptors.ClassDescriptor;
import org.eclipse.persistence.descriptors.ReturningPolicy;
import org.eclipse.persistence.internal.helper.DatabaseField;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class MoyaDescriptorCustomizer implements DescriptorCustomizer {
private static final Logger log = LoggerFactory.getLogger(MoyaDescriptorCustomizer.class);
@Override
public void customize(ClassDescriptor descriptor) throws Exception {
log.info("Customizing Descriptor: {}", descriptor);
// Optimistic locking policy
MoyaChangedFieldsOptimisticLockingPolicy changedFieldsLockingPolicy = new MoyaChangedFieldsOptimisticLockingPolicy();
// log.debug("Setting Optimistic Locking Policy: {}",
// changedFieldsLockingPolicy);
descriptor.setOptimisticLockingPolicy(changedFieldsLockingPolicy);
// ReturningPolicy
ReturningPolicy returningPolicy = new ReturningPolicy();
descriptor.setReturningPolicy(returningPolicy);
/*
* // generation strategy IDENTITY has sequence number field
* DatabaseField seqNumberField = descriptor.getSequenceNumberField();
* if (seqNumberField != null) {
* returningPolicy.addFieldForInsertReturnOnly(seqNumberField); }
*/
List<DatabaseField> pkFields = descriptor.getPrimaryKeyFields();
for (final DatabaseField field : pkFields) {
returningPolicy.addFieldForInsertReturnOnly(field);
field.setUpdatable(false);
field.setInsertable(false);
}
/*
* for (final DatabaseField field : descriptor.getFields()) {
*
* if (pkFields.contains(field)) continue;
*
* returningPolicy.addFieldForInsert(field);
* returningPolicy.addFieldForUpdate(field); }
*/
// log.info("Set descriptor's RETURNING policy to: {}",
// returningPolicy);
}
}