com.opensymphony.xwork2.inject
Class ContainerImpl

java.lang.Object
  com.opensymphony.xwork2.inject.ContainerImpl

All Implemented Interfaces:

Container, Serializable

 class ContainerImpl
extends Object
implements Container

Default Container implementation.

Author:

crazybob@google.com (Bob Lee)

See Also:

ContainerBuilder

Nested Class Summary

(package private) static class	ContainerImpl.ConstructorInjector<T>
(package private) static interface	ContainerImpl.ContextualCallable<T>
(package private) static class	ContainerImpl.FieldInjector
(package private) static interface	ContainerImpl.Injector Injects a field or method in a given object.
(package private) static interface	ContainerImpl.InjectorFactory<M extends Member & AnnotatedElement>
(package private) static class	ContainerImpl.MethodInjector
(package private) static class	ContainerImpl.MissingDependencyException
(package private) static class	ContainerImpl.ParameterInjector<T>

Field Summary

(package private) Map<Class<?>,ContainerImpl.ConstructorInjector>	constructors
(package private) Map<Key<?>,InternalFactory<?>>	factories
(package private) Map<Class<?>,Set<String>>	factoryNamesByType
(package private) Map<Class<?>,List<ContainerImpl.Injector>>	injectors Field and method injectors.
(package private) ThreadLocal<Object[]>	localContext
(package private) ThreadLocal<Object>	localScopeStrategy

Fields inherited from interface com.opensymphony.xwork2.inject.Container

DEFAULT_NAME

Constructor Summary

ContainerImpl(Map<Key<?>,InternalFactory<?>> factories)

Method Summary

(package private) void	addInjectors(Class clazz, List<ContainerImpl.Injector> injectors) Recursively adds injectors for fields and methods from the given class to the given list.
(package private) void	addInjectorsForFields(Field[] fields, boolean statics, List<ContainerImpl.Injector> injectors)
(package private) <M extends Member & AnnotatedElement> void	addInjectorsForMembers(List<M> members, boolean statics, List<ContainerImpl.Injector> injectors, ContainerImpl.InjectorFactory<M> injectorFactory)
(package private) void	addInjectorsForMethods(Method[] methods, boolean statics, List<ContainerImpl.Injector> injectors)
(package private) <T> T	callInContext(ContainerImpl.ContextualCallable<T> callable) Looks up thread local context.
(package private) <T> ContainerImpl.ParameterInjector<T>	createParameterInjector(Key<T> key, Member member)
(package private) Inject	findInject(Annotation[] annotations) Finds the Inject annotation in an array of annotations.
(package private) <T> ContainerImpl.ConstructorInjector<T>	getConstructor(Class<T> implementation) Gets a constructor function for a given implementation class.
(package private) <T> InternalFactory<? extends T>	getFactory(Key<T> key)
<T> T	getInstance(Class<T> type) Convenience method. Equivalent to getInstance(type, DEFAULT_NAME).
(package private) <T> T	getInstance(Class<T> type, InternalContext context)
<T> T	getInstance(Class<T> type, String name) Gets an instance of the given dependency which was declared in ContainerBuilder.
(package private) <T> T	getInstance(Class<T> type, String name, InternalContext context)
Set<String>	getInstanceNames(Class<?> type) Gets a set of all registered names for the given type
private static Object[]	getParameters(Member member, InternalContext context, ContainerImpl.ParameterInjector[] parameterInjectors)
(package private) <M extends AccessibleObject & Member> ContainerImpl.ParameterInjector<?>[]	getParametersInjectors(M member, Annotation[][] annotations, Class[] parameterTypes, String defaultName) Gets parameter injectors.
<T> T	inject(Class<T> implementation) Creates and injects a new instance of type implementation.
(package private) <T> T	inject(Class<T> implementation, InternalContext context)
void	inject(Object o) Injects dependencies into the fields and methods of an existing object.
(package private) void	inject(Object o, InternalContext context)
(package private) void	injectStatics(List<Class<?>> staticInjections)
private boolean	isStatic(Member member)
void	removeScopeStrategy() Removes the scope strategy for the current thread.
void	setScopeStrategy(Scope.Strategy scopeStrategy) Sets the scope strategy for the current thread.
private ContainerImpl.ParameterInjector<?>[]	toArray(List<ContainerImpl.ParameterInjector<?>> parameterInjections)

Methods inherited from class java.lang.Object

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

Field Detail

factories

final Map<Key<?>,InternalFactory<?>> factories

factoryNamesByType

final Map<Class<?>,Set<String>> factoryNamesByType

injectors

final Map<Class<?>,List<ContainerImpl.Injector>> injectors

Field and method injectors.

constructors

Map<Class<?>,ContainerImpl.ConstructorInjector> constructors

localContext

ThreadLocal<Object[]> localContext

localScopeStrategy

final ThreadLocal<Object> localScopeStrategy

Constructor Detail

ContainerImpl

ContainerImpl(Map<Key<?>,InternalFactory<?>> factories)

Method Detail

getFactory

<T> InternalFactory<? extends T> getFactory(Key<T> key)

addInjectors

void addInjectors(Class clazz,
                  List<ContainerImpl.Injector> injectors)

Recursively adds injectors for fields and methods from the given class to the given list. Injects parent classes before sub classes.

injectStatics

void injectStatics(List<Class<?>> staticInjections)

addInjectorsForMethods

void addInjectorsForMethods(Method[] methods,
                            boolean statics,
                            List<ContainerImpl.Injector> injectors)

addInjectorsForFields

void addInjectorsForFields(Field[] fields,
                           boolean statics,
                           List<ContainerImpl.Injector> injectors)

addInjectorsForMembers

<M extends Member & AnnotatedElement> void addInjectorsForMembers(List<M> members,
                                                                 boolean statics,
                                                                 List<ContainerImpl.Injector> injectors,
                                                                 ContainerImpl.InjectorFactory<M> injectorFactory)

isStatic

private boolean isStatic(Member member)

getParametersInjectors

<M extends AccessibleObject & Member> ContainerImpl.ParameterInjector<?>[] getParametersInjectors(M member,
                                                                                                 Annotation[][] annotations,
                                                                                                 Class[] parameterTypes,
                                                                                                 String defaultName)
                                                      throws ContainerImpl.MissingDependencyException

Gets parameter injectors.

Parameters:

member - to which the parameters belong

annotations - on the parameters

parameterTypes - parameter types

Returns:

injections

Throws:

ContainerImpl.MissingDependencyException

createParameterInjector

<T> ContainerImpl.ParameterInjector<T> createParameterInjector(Key<T> key,
                                                               Member member)
                                                     throws ContainerImpl.MissingDependencyException

Throws:

ContainerImpl.MissingDependencyException

toArray

private ContainerImpl.ParameterInjector<?>[] toArray(List<ContainerImpl.ParameterInjector<?>> parameterInjections)

findInject

Inject findInject(Annotation[] annotations)

Finds the Inject annotation in an array of annotations.

getParameters

private static Object[] getParameters(Member member,
                                      InternalContext context,
                                      ContainerImpl.ParameterInjector[] parameterInjectors)

inject

void inject(Object o,
            InternalContext context)

inject

<T> T inject(Class<T> implementation,
             InternalContext context)

getInstance

<T> T getInstance(Class<T> type,
                  String name,
                  InternalContext context)

getInstance

<T> T getInstance(Class<T> type,
                  InternalContext context)

inject

public void inject(Object o)

Description copied from interface: Container

Injects dependencies into the fields and methods of an existing object.

Specified by:

inject in interface Container

inject

public <T> T inject(Class<T> implementation)

Description copied from interface: Container

Creates and injects a new instance of type implementation.

Specified by:

inject in interface Container

getInstance

public <T> T getInstance(Class<T> type,
                         String name)

Description copied from interface: Container

Gets an instance of the given dependency which was declared in ContainerBuilder.

Specified by:

getInstance in interface Container

getInstance

public <T> T getInstance(Class<T> type)

Description copied from interface: Container

Convenience method. Equivalent to getInstance(type, DEFAULT_NAME).

Specified by:

getInstance in interface Container

getInstanceNames

public Set<String> getInstanceNames(Class<?> type)

Description copied from interface: Container

Gets a set of all registered names for the given type

Specified by:

getInstanceNames in interface Container

Parameters:

type - The instance type

Returns:

A set of registered names

callInContext

<T> T callInContext(ContainerImpl.ContextualCallable<T> callable)

Looks up thread local context. Creates (and removes) a new context if necessary.

getConstructor

<T> ContainerImpl.ConstructorInjector<T> getConstructor(Class<T> implementation)

Gets a constructor function for a given implementation class.

setScopeStrategy

public void setScopeStrategy(Scope.Strategy scopeStrategy)

Description copied from interface: Container

Sets the scope strategy for the current thread.

Specified by:

setScopeStrategy in interface Container

removeScopeStrategy

public void removeScopeStrategy()

Description copied from interface: Container

Removes the scope strategy for the current thread.

Specified by:

removeScopeStrategy in interface Container