org.picocontainer.gems.adapters
Class DelegateAdaptorFactory

java.lang.Object
  org.picocontainer.injectors.AbstractInjectionFactory
      org.picocontainer.gems.adapters.DelegateAdaptorFactory

All Implemented Interfaces:

Serializable, org.picocontainer.ComponentFactory, org.picocontainer.InjectionFactory

public class DelegateAdaptorFactory
extends org.picocontainer.injectors.AbstractInjectionFactory

Mirrored AdaptorFactory for handling delegate methods.

Author:

Michael Rimov

See Also:

Serialized Form

Constructor Summary

DelegateAdaptorFactory()
Default constructor.

Method Summary

<T> org.picocontainer.ComponentAdapter<T>	createComponentAdapter(org.picocontainer.ComponentMonitor componentMonitor, org.picocontainer.LifecycleStrategy lifecycleStrategy, Properties componentProperties, Object componentKey, Class<T> componentImplementation, org.picocontainer.Parameter... parameters)
static <INSTANCE,RETURN_TYPE> DelegateMethod<INSTANCE,RETURN_TYPE>	createDelegate(Class<INSTANCE> targetType, String methodName, Object... parameters) Generic-friendly instantiation.
static Properties	createDelegateProprties(Object targetObject, String methodName, Object... parameters) Use this static factory method as a way of creating all the necessary properties that are required by the adapter.

Methods inherited from class org.picocontainer.injectors.AbstractInjectionFactory

accept, verify

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

DelegateAdaptorFactory

public DelegateAdaptorFactory()

Default constructor.

Method Detail

createComponentAdapter

public <T> org.picocontainer.ComponentAdapter<T> createComponentAdapter(org.picocontainer.ComponentMonitor componentMonitor,
                                                                        org.picocontainer.LifecycleStrategy lifecycleStrategy,
                                                                        Properties componentProperties,
                                                                        Object componentKey,
                                                                        Class<T> componentImplementation,
                                                                        org.picocontainer.Parameter... parameters)
                                                             throws org.picocontainer.PicoCompositionException

Throws:

org.picocontainer.PicoCompositionException

createDelegateProprties

public static Properties createDelegateProprties(Object targetObject,
                                                 String methodName,
                                                 Object... parameters)

Use this static factory method as a way of creating all the necessary properties that are required by the adapter.

Example:

                DelegateAdapterFactory factory = new DelegateAdapterFactory();
                HttpServletRequest request = .....;
 
      //When object is instantiated will lazily call:   request.getSession(false);
                Properties props = createDelegateProperties(request, "getSession", false);
 
                DelegateMethodAdapter adapter = createComponentAdapter(new ConsoleComponentMonitor(), new DefaultLifecycleStrategy(),
                                 props, HttpSession.class, HttpSession.class);
 

Parameters:

targetObject - the object to be operated on.

methodName - the name of the method to invoke.

parameters - the parameters to supply upon invocation. (Also used to find matching argument).

Returns:

the appropriate properties that can be used with createComponentAdapter().

createDelegate

public static <INSTANCE,RETURN_TYPE> DelegateMethod<INSTANCE,RETURN_TYPE> createDelegate(Class<INSTANCE> targetType,
                                                                                         String methodName,
                                                                                         Object... parameters)

Generic-friendly instantiation. If you have control of your own code, you can also just use the DelegateMethod constructors.

Type Parameters:

INSTANCE -

RETURN_TYPE -

Parameters:

targetType - the type of object being instantiated.

methodName - the method name to invoke when called.

parameters - the method paramters to use.

Returns:

DelegateMethod instance.