Package org.picocontainer.visitors

Class TraversalCheckingVisitor

java.lang.Object
org.picocontainer.visitors.AbstractPicoVisitor
org.picocontainer.visitors.TraversalCheckingVisitor
All Implemented Interfaces:
PicoVisitor
Direct Known Subclasses:
MethodCallingVisitor, VerifyingVisitor
public class TraversalCheckingVisitor extends AbstractPicoVisitor
Concrete implementation of Visitor which simply checks traversals. This can be a useful class for other Visitor implementations to extend, as it provides a default implementation in case you one is only interested in one PicoVisitor type. Example: 
 PicoContainer container = new DefaultPicoContainer();
 PicoContainer child = container.makeChildContainer();

 final List allContainers = new ArrayList();

 PicoVisitor visitor = new TraversalCheckingVisitor() {
     public boolean visitContainer(PicoContainer pico) {
         super.visitContainer(pico);  //Calls checkTraversal for us.
         allContainers.add(pico);
         return true;
     }
 }
Author:
Michael Rimov

  • Constructor Details

    • TraversalCheckingVisitor

      public TraversalCheckingVisitor()

  • Method Details

    • visitContainer

      public boolean visitContainer(PicoContainer pico)
      Visit a PicoContainer that has to accept the visitor.
      Parameters:
      pico - the visited container.
      Returns:
      CONTINUE_TRAVERSAL if the traversal should continue. Any visitor callback that returns ABORT_TRAVERSAL indicates the desire to abort any further traversal.

    • visitComponentAdapter

      public void visitComponentAdapter(ComponentAdapter<?> componentAdapter)
      Visit a ComponentAdapter that has to accept the visitor.
      Parameters:
      componentAdapter - the visited ComponentAdapter.

    • visitComponentFactory

      public void visitComponentFactory(ComponentFactory componentFactory)
      Visit a ComponentAdapter that has to accept the visitor.

    • visitParameter

      public void visitParameter(Parameter parameter)
      Visit a Parameter that has to accept the visitor.
      Parameters:
      parameter - the visited Parameter.