How to use

buildBackupClone

method

in

org.eclipse.persistence.descriptors.changetracking.ObjectChangePolicy

Object backupClone = descriptor.getObjectChangePolicy().buildBackupClone(clone, builder, this);

Object backupClone = descriptor.getObjectChangePolicy().buildBackupClone(clone, builder, this);

Object backupClone = descriptor.getObjectChangePolicy().buildBackupClone(clone, builder, this);

Object backupClone = descriptor.getObjectChangePolicy().buildBackupClone(clone, builder, this);

Object backupClone = descriptor.getObjectChangePolicy().buildBackupClone(clone, builder, this);

Object backupClone = descriptor.getObjectChangePolicy().buildBackupClone(clone, builder, this);

/**
 * INTERNAL:
 * This method is called from clone and register.  It includes the processing
 * required to clone an object, including populating attributes, putting in
 * UOW identitymap and building a backupclone
 */
protected void populateAndRegisterObject(Object original, Object workingClone, CacheKey unitOfWorkCacheKey, CacheKey parentCacheKey, ClassDescriptor descriptor) {
  // This must be registered before it is built to avoid cycles.
  unitOfWorkCacheKey.setObject(workingClone);
  unitOfWorkCacheKey.setReadTime(parentCacheKey.getReadTime());
  unitOfWorkCacheKey.setWriteLockValue(parentCacheKey.getWriteLockValue());
  //Set ChangeListener for ObjectChangeTrackingPolicy and AttributeChangeTrackingPolicy,
  //but not DeferredChangeDetectionPolicy.  Build backup clone for DeferredChangeDetectionPolicy 
  //or ObjectChangeTrackingPolicy, but not for AttributeChangeTrackingPolicy.  
  // - Set listener before populating attributes so aggregates can find the parent's listener
  ObjectChangePolicy changePolicy = descriptor.getObjectChangePolicy();
  changePolicy.setChangeListener(workingClone, this, descriptor);
  changePolicy.dissableEventProcessing(workingClone);
  ObjectBuilder builder = descriptor.getObjectBuilder();
  builder.populateAttributesForClone(original, parentCacheKey, workingClone, null, this);
  Object backupClone = changePolicy.buildBackupClone(workingClone, builder, this);
  // PERF: Avoid put if no backup clone.
  if (workingClone != backupClone) {
    getCloneMapping().put(workingClone, backupClone);
  }
  changePolicy.enableEventProcessing(workingClone);
}

/**
 * INTERNAL:
 * This method is called from clone and register.  It includes the processing
 * required to clone an object, including populating attributes, putting in
 * UOW identitymap and building a backupclone
 */
protected void populateAndRegisterObject(Object original, Object workingClone, CacheKey unitOfWorkCacheKey, CacheKey parentCacheKey, ClassDescriptor descriptor) {
  // This must be registered before it is built to avoid cycles.
  unitOfWorkCacheKey.setObject(workingClone);
  unitOfWorkCacheKey.setReadTime(parentCacheKey.getReadTime());
  unitOfWorkCacheKey.setWriteLockValue(parentCacheKey.getWriteLockValue());
  //Set ChangeListener for ObjectChangeTrackingPolicy and AttributeChangeTrackingPolicy,
  //but not DeferredChangeDetectionPolicy.  Build backup clone for DeferredChangeDetectionPolicy
  //or ObjectChangeTrackingPolicy, but not for AttributeChangeTrackingPolicy.
  // - Set listener before populating attributes so aggregates can find the parent's listener
  ObjectChangePolicy changePolicy = descriptor.getObjectChangePolicy();
  changePolicy.setChangeListener(workingClone, this, descriptor);
  changePolicy.dissableEventProcessing(workingClone);
  ObjectBuilder builder = descriptor.getObjectBuilder();
  builder.populateAttributesForClone(original, parentCacheKey, workingClone, null, this);
  Object backupClone = changePolicy.buildBackupClone(workingClone, builder, this);
  // PERF: Avoid put if no backup clone.
  if (workingClone != backupClone) {
    getCloneMapping().put(workingClone, backupClone);
  }
  changePolicy.enableEventProcessing(workingClone);
}

/**
 * INTERNAL:
 * This method is called from clone and register.  It includes the processing
 * required to clone an object, including populating attributes, putting in
 * UOW identitymap and building a backupclone
 */
protected void populateAndRegisterObject(Object original, Object workingClone, CacheKey unitOfWorkCacheKey, CacheKey parentCacheKey, ClassDescriptor descriptor) {
  // This must be registered before it is built to avoid cycles.
  unitOfWorkCacheKey.setObject(workingClone);
  unitOfWorkCacheKey.setReadTime(parentCacheKey.getReadTime());
  unitOfWorkCacheKey.setWriteLockValue(parentCacheKey.getWriteLockValue());
  //Set ChangeListener for ObjectChangeTrackingPolicy and AttributeChangeTrackingPolicy,
  //but not DeferredChangeDetectionPolicy.  Build backup clone for DeferredChangeDetectionPolicy 
  //or ObjectChangeTrackingPolicy, but not for AttributeChangeTrackingPolicy.  
  // - Set listener before populating attributes so aggregates can find the parent's listener
  descriptor.getObjectChangePolicy().setChangeListener(workingClone, this, descriptor);
  descriptor.getObjectChangePolicy().dissableEventProcessing(workingClone);
  ObjectBuilder builder = descriptor.getObjectBuilder();
  builder.populateAttributesForClone(original, workingClone, this);
  Object backupClone = descriptor.getObjectChangePolicy().buildBackupClone(workingClone, builder, this);
  // PERF: Avoid put is no backup clone.
  if (workingClone != backupClone) {
    getCloneMapping().put(workingClone, backupClone);
  }
  descriptor.getObjectChangePolicy().enableEventProcessing(workingClone);
}

  this.descriptor.getFetchGroupManager().setObjectFetchGroup(workingClone, query.getFetchGroup(), unitOfWork);
Object backupClone = policy.buildBackupClone(workingClone, this, unitOfWork);

Object backupClone = policy.buildBackupClone(workingClone, this, unitOfWork);

  fetchGroupManager.setObjectFetchGroup(workingClone, query.getExecutionFetchGroup(this.descriptor), unitOfWork);
Object backupClone = policy.buildBackupClone(workingClone, this, unitOfWork);