Class HiddenImplementation<T>

java.lang.Object
org.picocontainer.behaviors.AbstractBehavior<T>
org.picocontainer.behaviors.HiddenImplementation<T>
All Implemented Interfaces:
Serializable, Behavior<T>, ComponentAdapter<T>, ComponentLifecycle<T>, ComponentMonitorStrategy, LifecycleStrategy
Direct Known Subclasses:
Intercepted

public class HiddenImplementation<T> extends AbstractBehavior<T>
This component adapter makes it possible to hide the implementation of a real subject (behind a proxy) provided the key is an interface.

This class exists here, because a) it has no deps on external jars, b) dynamic proxy is quite easy. The user is prompted to look at picocontainer-gems for alternate and bigger implementations.

Author:
Aslak Hellesøy, Paul Hammant
See Also:
  • Constructor Details

    • HiddenImplementation

      public HiddenImplementation(ComponentAdapter<T> delegate)
      Creates an ImplementationHidingComponentAdapter with a delegate
      Parameters:
      delegate - the component adapter to which this adapter delegates
  • Method Details

    • getComponentInstance

      public T getComponentInstance(PicoContainer container, Type into) throws PicoCompositionException
      Description copied from interface: ComponentAdapter
      Retrieve the component instance. This method will usually create a new instance each time it is called, but that is not required. For example, Cached will always return the same instance.
      Specified by:
      getComponentInstance in interface ComponentAdapter<T>
      Overrides:
      getComponentInstance in class AbstractBehavior<T>
      Parameters:
      container - the PicoContainer, that is used to resolve any possible dependencies of the instance.
      into - the class that is about to be injected into. Use ComponentAdapter.NOTHING.class if this is not important to you.
      Returns:
      the component instance.
      Throws:
      PicoCompositionException - if the component has dependencies which could not be resolved, or instantiation of the component lead to an ambiguous situation within the container.
    • getDescriptor

      public String getDescriptor()
      Description copied from interface: ComponentAdapter
      Get a string key descriptor of the component adapter for use in toString()
      Returns:
      the descriptor
    • createProxy

      protected T createProxy(Class[] interfaces, PicoContainer container, ClassLoader classLoader)
    • invokeMethod

      protected Object invokeMethod(Object componentInstance, Method method, Object[] args, PicoContainer container) throws Throwable
      Throws:
      Throwable