Package org.alfresco.repo.transfer

Interface AlienProcessor

All Known Implementing Classes:
AlienProcessorImpl
public interface AlienProcessor
This class groups together the business logic for alien nodes which are transferred nodes that contain children from another repository.

Alien nodes cannot be deleted through the transfer service, instead they are "pruned"

This class owns the aspect trx:alien (TransferModel.ASPECT_ALIEN)

  • Method Details

    • pruneNode

      void pruneNode(NodeRef parentNodeRef, String fromRepositoryId)
      Prune the given node of aliens from the specified repositoryId.

      So any children that are only invaded by the specified repository are deleted.

      Folders which are invaded by more than one repository will remain.

      Parameters:
      parentNodeRef - the root to prune
      fromRepositoryId - the repositoryId to prune.

    • isAlien

      boolean isAlien(NodeRef nodeRef)
      Has the node been invaded by aliens ?
      Parameters:
      nodeRef - the node to check
      Returns:
      true the node has been invaded by aliens.

    • onCreateChild

      void onCreateChild(ChildAssociationRef childAssocRef, String repositoryId, boolean isNewNode)
      Called before creating a child of a transferred node.

      When a new node is created as a child of a Transferred or Alien node then the new node needs to be marked as an alien.

      Then the tree needs to be walked upwards to mark all parent transferred nodes as alien.

      Parameters:
      childAssocRef - the association ref to the new node
      repositoryId - - the repositoryId of the system who owns the new node.
      isNewNode - - is this a new nide

    • afterMoveAlien

      void afterMoveAlien(ChildAssociationRef newAssocRef)
      Called when an alien node has been moved from one parent to another.

      If the new parent is transferred or alien may make the new parent an alien.

      The alien node may also stop being an alien node.

    • beforeDeleteAlien

      void beforeDeleteAlien(NodeRef deletedNodeRef, ChildAssociationRef oldRef)
      Called before deleting an alien node.

      The tree needs to be walked upwards to take account of the removed alien node.

      Parameters:
      deletedNodeRef - node about to be deleted
      oldRef - null if the deleted node is still "in place" and readable else the old ref prior to the node being moved.