com.truward.di.support

Class DefaultInjectionContext

java.lang.Object

com.truward.di.support.DefaultInjectionContext

All Implemented Interfaces:

InjectionContext

public class DefaultInjectionContext
extends Object
implements InjectionContext

Default implementation of InjectionContext.

Author:

Alexander Shabanov

Constructor Summary

Constructors

Constructor and Description
DefaultInjectionContext()

Method Summary

Methods

Modifier and Type	Method and Description
void	freeze() Freezes current context, so there will be no possibility to modify this context.
<T> T	getBean(Class<T> beanClass) Gets bean associated with the class given.
<T> List<T>	getBeans(Class<T> beanClass) Returns all the beans that implement the given class.
boolean	isFrozen()
<T> void	registerBean(Class<T> beanClass) Puts bean instance associated with the given class.
<T> void	registerBean(T bean) Puts bean instance to the context.

Methods inherited from class java.lang.Object

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

Constructor Detail

DefaultInjectionContext

public DefaultInjectionContext()

Method Detail

registerBean

public <T> void registerBean(@Nonnull
                    T bean)

Description copied from interface: InjectionContext

Puts bean instance to the context. The bean should be only one.

Specified by:

registerBean in interface InjectionContext

Type Parameters:

T - Bean's class.

Parameters:

bean - Bean instance.

registerBean

public <T> void registerBean(@Nonnull
                    Class<T> beanClass)

Description copied from interface: InjectionContext

Puts bean instance associated with the given class. Throws InjectionException if the given bean class clashes with certain existing definition.

Specified by:

registerBean in interface InjectionContext

Type Parameters:

T - Bean class type.

Parameters:

beanClass - Non-interface bean class.

getBean

@Nonnull
public <T> T getBean(@Nonnull
                    Class<T> beanClass)

Description copied from interface: InjectionContext

Gets bean associated with the class given. Returns current Context instance when beanClass equals to Context class itself. Throws InjectionException in case of no bean associated with the given class. Throws InjectionException if multiple beans can be returned by this method.

Specified by:

getBean in interface InjectionContext

Type Parameters:

T - Interface type.

Parameters:

beanClass - Interface class, that is expected to be associated with the bean.

Returns:

Non-null bean instance.

getBeans

@Nonnull
public <T> List<T> getBeans(@Nonnull
                           Class<T> beanClass)

Description copied from interface: InjectionContext

Returns all the beans that implement the given class.

Specified by:

getBeans in interface InjectionContext

Type Parameters:

T - Interface type.

Parameters:

beanClass - Interface class, that is expected to be associated with the bean.

Returns:

Non-null list

freeze

public void freeze()

Description copied from interface: InjectionContext

Freezes current context, so there will be no possibility to modify this context.

Specified by:

freeze in interface InjectionContext

See Also:

InjectionContext.isFrozen()

isFrozen

public boolean isFrozen()

Specified by:

isFrozen in interface InjectionContext

Returns:

Boolean flag, that indicates, whether the context is frozen or not.

See Also:

InjectionContext.freeze()