How to use

isDeferredChangeDetectionPolicy

method

in

org.eclipse.persistence.descriptors.changetracking.ObjectChangePolicy

/**
 * Check to ensure the class meets all the conditions necessary to enable change tracking
 * This could occur either if the class already has change tracking implemented or if the
 * class is capable of having change tracking woven based on the descriptor.
 */
protected boolean canChangeTrackingBeEnabled(ClassDescriptor descriptor, MetadataClass clz, boolean globalWeaveChangeTracking) {
  if (!globalWeaveChangeTracking) {
   return false;
  }
  // If the descriptor was configured to not use change tracking then disable it, also enable if configure explictly.
  if (descriptor.getObjectChangePolicyInternal() != null) {
    if (descriptor.getObjectChangePolicyInternal().isDeferredChangeDetectionPolicy()) {
      return false;
    } else if (descriptor.getObjectChangePolicyInternal().isObjectChangeTrackingPolicy()) {
      // Include object and attribute.
      return true;
    }
  }
  boolean canWeaveChangeTracking = descriptor.supportsChangeTracking(session.getProject());
  if (!canWeaveChangeTracking) {
    log(SessionLog.CONFIG, CANNOT_WEAVE_CHANGETRACKING, new Object[]{descriptor.getJavaClassName()});
  }
  return canWeaveChangeTracking;
}