net.lecousin.framework.injection

Class InjectionContext

java.lang.Object

net.lecousin.framework.injection.InjectionContext

All Implemented Interfaces:

Closeable, AutoCloseable

public class InjectionContext
extends Object
implements Closeable

Injection context.

Constructor Summary

Constructors

Constructor and Description
InjectionContext() Constructor.
InjectionContext(InjectionContext parent) Constructor.

Method Summary

Modifier and Type	Method and Description
void	add(ObjectProvider provider) Add an object provider.
void	close()
<T> T	getObject(Class<T> type) Retrieve an object by its implemented type.
Object	getObjectById(String id) Retrieve an object by its id.
<T> T	getObjectById(String id, Class<T> type) Retrieve an object by its id and implemented type.
InjectionContext	getParent()
String	getProperty(String name) Return a property or null if not set.
static InjectionContext	getRoot()
Object	searchObjectInChildren(String id) Search an object by ID in this context and its descendents.
void	setObject(String id, Class<?> type, Object instance, ObjectMethod destroy) Add a singleton by id, equivalent to call add(new Singleton(type, instance, id)).
void	setParent(InjectionContext parent) Set the parent context, and add this context to the children of the given parent.
void	setProperty(String name, String value) Set a property.

Methods inherited from class java.lang.Object

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

Constructor Detail

InjectionContext

public InjectionContext(InjectionContext parent)

Constructor.

InjectionContext

public InjectionContext()

Constructor.

Method Detail

getRoot

public static InjectionContext getRoot()

getParent

public InjectionContext getParent()

setParent

public void setParent(InjectionContext parent)

Set the parent context, and add this context to the children of the given parent.

close

public void close()

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable

setProperty

public void setProperty(String name,
                        String value)

Set a property.

getProperty

public String getProperty(String name)

Return a property or null if not set.

getObjectById

public Object getObjectById(String id)
                     throws InjectionException

Retrieve an object by its id.

Throws:

InjectionException

getObjectById

public <T> T getObjectById(String id,
                           Class<T> type)
                    throws InjectionException

Retrieve an object by its id and implemented type.

Throws:

InjectionException

getObject

public <T> T getObject(Class<T> type)
                throws InjectionException

Retrieve an object by its implemented type.

Throws:

InjectionException

searchObjectInChildren

public Object searchObjectInChildren(String id)
                              throws InjectionException

Search an object by ID in this context and its descendents.

Throws:

InjectionException

add

public void add(ObjectProvider provider)
         throws InjectionException

Add an object provider.

Throws:

InjectionException

setObject

public void setObject(String id,
                      Class<?> type,
                      Object instance,
                      ObjectMethod destroy)
               throws InjectionException

Add a singleton by id, equivalent to call add(new Singleton(type, instance, id)).

Throws:

InjectionException