org.picocontainer.injectors
Class IterativeInjector<T>

java.lang.Object
  org.picocontainer.adapters.AbstractAdapter<T>
      org.picocontainer.injectors.AbstractInjector<T>
          org.picocontainer.injectors.IterativeInjector<T>

All Implemented Interfaces:

Serializable, ComponentAdapter<T>, ComponentMonitorStrategy, Injector<T>

Direct Known Subclasses:

AnnotatedFieldInjector, NamedFieldInjector, SetterInjector, TypedFieldInjector

public abstract class IterativeInjector<T>
extends AbstractInjector<T>

Injection will happen iteratively after component instantiation

See Also:

Serialized Form

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

protected Annotation[]	bindings
protected List<AccessibleObject>	injectionMembers
protected Type[]	injectionTypes

Fields inherited from class org.picocontainer.injectors.AbstractInjector

parameters, verifyingGuard

Constructor Summary

IterativeInjector(Object componentKey, Class componentImplementation, Parameter[] parameters, ComponentMonitor monitor, boolean useNames)
Constructs a IterativeInjector

Method Summary

Object	decorateComponentInstance(PicoContainer container, Type into, T instance) A preexiting component instance can be injected into after instantiation
T	getComponentInstance(PicoContainer container, Type into) Retrieve the component instance.
protected Constructor	getConstructor()
protected String	getName(Method method)
protected void	initializeInjectionMembersAndTypeLists()
protected abstract Object	injectIntoMember(AccessibleObject member, Object componentInstance, Object toInject)
protected boolean	isInjectorMethod(Method method)
protected NameBinding	makeParameterNameImpl(AccessibleObject member)
protected abstract Object	memberInvocationReturn(Object lastReturn, AccessibleObject member, Object instance)
protected void	unsatisfiedDependencies(PicoContainer container, Set<Type> unsatisfiableDependencyTypes)
void	verify(PicoContainer container) Verify that all dependencies for this adapter can be satisfied.

Methods inherited from class org.picocontainer.injectors.AbstractInjector

accept, box, caughtIllegalAccessException, caughtIllegalAccessException, caughtInstantiationException, caughtInvocationTargetException, createDefaultParameters, getComponentInstance, getDescriptor, 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

Field Detail

injectionMembers

protected transient List<AccessibleObject> injectionMembers

injectionTypes

protected transient Type[] injectionTypes

bindings

protected transient Annotation[] bindings

Constructor Detail

IterativeInjector

public IterativeInjector(Object componentKey,
                         Class componentImplementation,
                         Parameter[] parameters,
                         ComponentMonitor monitor,
                         boolean useNames)
                  throws AbstractInjector.NotConcreteRegistrationException

Constructs a IterativeInjector

Parameters:

componentKey - the search key for this implementation

componentImplementation - the concrete implementation

parameters - the parameters to use for the initialization

monitor - the component monitor used by this addAdapter

useNames - use argument names when looking up dependencies

Throws:

AbstractInjector.NotConcreteRegistrationException - if the implementation is not a concrete class.

NullPointerException - if one of the parameters is null

Method Detail

getConstructor

protected Constructor getConstructor()

makeParameterNameImpl

protected NameBinding makeParameterNameImpl(AccessibleObject member)

unsatisfiedDependencies

protected void unsatisfiedDependencies(PicoContainer container,
                                       Set<Type> unsatisfiableDependencyTypes)

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.

memberInvocationReturn

protected abstract Object memberInvocationReturn(Object lastReturn,
                                                 AccessibleObject member,
                                                 Object instance)

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

instance - the instance to

Returns:

injectIntoMember

protected abstract Object injectIntoMember(AccessibleObject member,
                                           Object componentInstance,
                                           Object toInject)
                                    throws IllegalAccessException,
                                           InvocationTargetException

Throws:

IllegalAccessException

InvocationTargetException

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.

initializeInjectionMembersAndTypeLists

protected void initializeInjectionMembersAndTypeLists()

getName

protected String getName(Method method)

isInjectorMethod

protected boolean isInjectorMethod(Method method)