team.unnamed.inject.impl

Class InjectorImpl

java.lang.Object

team.unnamed.inject.impl.InjectorImpl

All Implemented Interfaces:

Injector

public class InjectorImpl
extends java.lang.Object
implements Injector

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.Object	ABSENT_INSTANCE
protected java.lang.ThreadLocal<ProvisionStack>	provisionStackThreadLocal

Constructor Summary

Constructors

Constructor and Description
InjectorImpl(BinderImpl binder)

Method Summary

Modifier and Type	Method and Description
<T> T	getInstance(Key<T> type, boolean useExplicitBindings)
<T> T	getInstance(ProvisionStack stack, Key<T> type, boolean useExplicitBindings)
<T> T	getInstance(TypeReference<T> type) Invokes the overloaded method getInstance(ProvisionStack, Key, boolean) passing an empty provision stack
<T> Provider<? extends T>	getProvider(TypeReference<T> key) Returns the explicit bound provider for the specified key
java.lang.Object	getValue(InjectedKey<?> key, ProvisionStack stack)
<T> void	injectMembers(ProvisionStack stack, Key<T> type, T instance)
<T> void	injectMembers(TypeReference<T> type, T instance) Delegates the functionality to the abstract method injectMembers(ProvisionStack, Key, Object) passing an empty provision stack
void	injectStaticMembers(java.lang.Class<?> clazz) Injects the static members of the specified class, equivalent to execute the overloaded method Injector.injectMembers(TypeReference, Object) passing a null instance and the type reference created with the provided class
protected void	removeStackFromThisThread() Sets the provision stack in this thread to null, so it should be re-started with stackForThisThread().
ProvisionStack	stackForThisThread()

Methods inherited from class java.lang.Object

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

Methods inherited from interface team.unnamed.inject.Injector

create, create, getInstance, getProvider, injectMembers

Field Detail

ABSENT_INSTANCE

public static final java.lang.Object ABSENT_INSTANCE

provisionStackThreadLocal

protected final java.lang.ThreadLocal<ProvisionStack> provisionStackThreadLocal

Constructor Detail

InjectorImpl

public InjectorImpl(BinderImpl binder)

Method Detail

getValue

public java.lang.Object getValue(InjectedKey<?> key,
                                 ProvisionStack stack)

getInstance

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

Invokes the overloaded method getInstance(ProvisionStack, Key, boolean) passing an empty provision stack

Specified by:

getInstance in interface Injector

Type Parameters:

T - The type parameter

Parameters:

type - The instance generic type

Returns:

The instance, or null if the class isn't injectable

injectMembers

public <T> void injectMembers(TypeReference<T> type,
                              T instance)

Delegates the functionality to the abstract method injectMembers(ProvisionStack, Key, Object) passing an empty provision stack

Specified by:

injectMembers in interface Injector

Type Parameters:

T - The type of the injected object

Parameters:

type - The injected types

instance - The object that will be injected, if it's null, the injector handles it like a static injection

stackForThisThread

public ProvisionStack stackForThisThread()

Returns:

The provision stack in the thread local, if not present, creates a provision stack and stores it in the thread local

removeStackFromThisThread

protected void removeStackFromThisThread()

Sets the provision stack in this thread to null, so it should be re-started with stackForThisThread().

Simple explanation: There's one ProvisionStack per thread. This is handled using a ThreadLocal

getProvider

public <T> Provider<? extends T> getProvider(TypeReference<T> key)

Description copied from interface: Injector

Returns the explicit bound provider for the specified key

Specified by:

getProvider in interface Injector

Type Parameters:

T - The key type

Parameters:

key - The key type reference

Returns:

The provider, or null if there's no provider

injectStaticMembers

public void injectStaticMembers(java.lang.Class<?> clazz)

Description copied from interface: Injector

Injects the static members of the specified class, equivalent to execute the overloaded method Injector.injectMembers(TypeReference, Object) passing a null instance and the type reference created with the provided class

Specified by:

injectStaticMembers in interface Injector

Parameters:

clazz - The class

injectMembers

public <T> void injectMembers(ProvisionStack stack,
                              Key<T> type,
                              T instance)

getInstance

public <T> T getInstance(Key<T> type,
                         boolean useExplicitBindings)

getInstance

public <T> T getInstance(ProvisionStack stack,
                         Key<T> type,
                         boolean useExplicitBindings)