org.picocontainer.injectors.CompositeInjector<T>

All Implemented Interfaces:: Serializable, ComponentAdapter<T>, ComponentMonitorStrategy, Injector<T>

Direct Known Subclasses:: MultiInjector

public class CompositeInjector<T> extends AbstractInjector<T>

See Also:

Nested Class Summary

Nested classes/interfaces inherited from class org.picocontainer.injectors.AbstractInjector
AbstractInjector.AmbiguousComponentResolutionException, AbstractInjector.CyclicDependencyException, AbstractInjector.NotConcreteRegistrationException, AbstractInjector.UnsatisfiableDependenciesException

Nested classes/interfaces inherited from interface org.picocontainer.ComponentAdapter
ComponentAdapter.NOTHING
Field Summary

Fields inherited from class org.picocontainer.injectors.AbstractInjector
parameters, verifyingGuard
Constructor Summary

Constructors

Constructor

Description

CompositeInjector(Object componentKey, Class<?> componentImplementation, Parameter[] parameters, ComponentMonitor monitor, boolean useNames, Injector... injectors)
Method Summary

Modifier and Type

Method

Description

final void

accept(PicoVisitor visitor)

Accepts a visitor for this ComponentAdapter.

Object

decorateComponentInstance(PicoContainer container, Type into, T instance)

A preexiting component instance can be injected into after instantiation

T

getComponentInstance(PicoContainer container)

Retrieve the component instance.

T

getComponentInstance(PicoContainer container, Type into)

Retrieve the component instance.

String

getDescriptor()

Get a string key descriptor of the component adapter for use in toString()

void

verify(PicoContainer container)

Verify that all dependencies for this adapter can be satisfied.

Methods inherited from class org.picocontainer.injectors.AbstractInjector
box, caughtIllegalAccessException, caughtIllegalAccessException, caughtInstantiationException, caughtInvocationTargetException, createDefaultParameters, newInstance, useNames

Methods inherited from class org.picocontainer.adapters.AbstractAdapter
changeMonitor, checkTypeCompatibility, currentMonitor, findAdapterOfType, getComponentImplementation, getComponentKey, getDelegate, toString

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.picocontainer.ComponentAdapter
findAdapterOfType, getComponentImplementation, getComponentKey, getDelegate

Constructor Details
- CompositeInjector
  
  public CompositeInjector(Object componentKey, Class<?> componentImplementation, Parameter[] parameters, ComponentMonitor monitor, boolean useNames, Injector... injectors)
Method Details
- getComponentInstance
  
  public T getComponentInstance(PicoContainer container) 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 AbstractInjector<T>
  
  Parameters:
  
  container - the PicoContainer, that is used to resolve any possible dependencies of the instance.
  
  Returns:
  
  the component instance.
  
  Throws:
  
  PicoCompositionException - if the component has dependencies which could not be resolved, or instantiation of the component lead to an ambigous situation within the container.
- 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>
  
  Specified by:
  
  getComponentInstance in class AbstractInjector<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.
- decorateComponentInstance
  
  public Object decorateComponentInstance(PicoContainer container, Type into, T instance)
  
  Description copied from interface: Injector
  
  A preexiting component instance can be injected into after instantiation
  
  Specified by:
  
  decorateComponentInstance in interface Injector<T>
  
  Overrides:
  
  decorateComponentInstance in class AbstractInjector<T>
  
  Parameters:
  
  container - the container that can provide injectable dependencies
  
  into -
  
  instance - the instance to
  
  Returns:
  
  the object returned is the result of the last of the injectors delegated to
- verify
  
  public void verify(PicoContainer container) throws PicoCompositionException
  
  Description copied from interface: ComponentAdapter
  
  Verify that all dependencies for this adapter can be satisfied. Normally, the adapter should verify this by checking that the associated PicoContainer contains all the needed dependencies.
  
  Specified by:
  
  verify in interface ComponentAdapter<T>
  
  Overrides:
  
  verify in class AbstractInjector<T>
  
  Parameters:
  
  container - the PicoContainer, that is used to resolve any possible dependencies of the instance.
  
  Throws:
  
  PicoCompositionException - if one or more dependencies cannot be resolved.
- accept
  
  public final void accept(PicoVisitor visitor)
  
  Description copied from interface: ComponentAdapter
  
  Accepts a visitor for this ComponentAdapter. The method is normally called by visiting a PicoContainer, that cascades the visitor also down to all its ComponentAdapter instances.
  
  Specified by:
  
  accept in interface ComponentAdapter<T>
  
  Overrides:
  
  accept in class AbstractInjector<T>
  
  Parameters:
  
  visitor - the visitor.
- getDescriptor
  
  public String getDescriptor()
  
  Description copied from interface: ComponentAdapter
  
  Get a string key descriptor of the component adapter for use in toString()
  
  Specified by:
  
  getDescriptor in interface ComponentAdapter<T>
  
  Overrides:
  
  getDescriptor in class AbstractInjector<T>
  
  Returns:
  
  the descriptor

Class CompositeInjector<T>

Nested Class Summary

Nested classes/interfaces inherited from class org.picocontainer.injectors.AbstractInjector

Nested classes/interfaces inherited from interface org.picocontainer.ComponentAdapter

Field Summary

Fields inherited from class org.picocontainer.injectors.AbstractInjector

Constructor Summary

Method Summary

Methods inherited from class org.picocontainer.injectors.AbstractInjector

Methods inherited from class org.picocontainer.adapters.AbstractAdapter

Methods inherited from class java.lang.Object

Methods inherited from interface org.picocontainer.ComponentAdapter

Constructor Details

CompositeInjector

Method Details

getComponentInstance

getComponentInstance

decorateComponentInstance

verify

accept

getDescriptor