How to use

setSession

method

in

org.eclipse.persistence.internal.indirection.UnitOfWorkValueHolder

/**
 * This is used for a remote unit of work.
 * If the value holder is sent back to the server uninstantiated and
 * it needs to be instantiated, then we must find the original
 * object and get the appropriate attribute from it.
 */
protected Object getValueFromServerObject() {
  setSession(getRemoteUnitOfWork());
  Object primaryKey = getSession().getId(getSourceObject());
  Object originalObject = getUnitOfWork().getParent().getIdentityMapAccessor().getFromIdentityMap(primaryKey, getSourceObject().getClass());
  if (originalObject == null) {
    originalObject = getUnitOfWork().getParent().readObject(getSourceObject());
  }
  ClassDescriptor descriptor = getSession().getDescriptor(originalObject);
  DatabaseMapping mapping = descriptor.getObjectBuilder().getMappingForAttributeName(getSourceAttributeName());
  setMapping(mapping);
  return getMapping().getRealAttributeValueFromObject(originalObject, getSession());
}

/**
 * This is used for a remote unit of work.
 * If the value holder is sent back to the server uninstantiated and
 * it needs to be instantiated, then we must find the original
 * object and get the appropriate attribute from it.
 */
protected Object getValueFromServerObject() {
  setSession(getRemoteUnitOfWork());
  Object primaryKey = getSession().getId(getSourceObject());
  Object originalObject = getUnitOfWork().getParent().getIdentityMapAccessor().getFromIdentityMap(primaryKey, getSourceObject().getClass());
  if (originalObject == null) {
    originalObject = getUnitOfWork().getParent().readObject(getSourceObject());
  }
  ClassDescriptor descriptor = getSession().getDescriptor(originalObject);
  DatabaseMapping mapping = descriptor.getObjectBuilder().getMappingForAttributeName(getSourceAttributeName());
  setMapping(mapping);
  return getMapping().getRealAttributeValueFromObject(originalObject, getSession());
}

/**
 * This is used for a remote unit of work.
 * If the value holder is sent back to the server uninstantiated and
 * it needs to be instantiated, then we must find the original
 * object and get the appropriate attribute from it.
 */
protected Object getValueFromServerObject() {
  setSession(getRemoteUnitOfWork());
  Vector primaryKey = getSession().keyFromObject(getSourceObject());
  Object originalObject = getUnitOfWork().getParent().getIdentityMapAccessor().getFromIdentityMap(primaryKey, getSourceObject().getClass());
  if (originalObject == null) {
    originalObject = getUnitOfWork().getParent().readObject(getSourceObject());
  }
  ClassDescriptor descriptor = getSession().getDescriptor(originalObject);
  DatabaseMapping mapping = descriptor.getObjectBuilder().getMappingForAttributeName(getSourceAttributeName());
  setMapping(mapping);
  return getMapping().getRealAttributeValueFromObject(originalObject, getSession());
}