com.hammurapi.util
Class CompositeContext

java.lang.Object
  com.hammurapi.util.CompositeContext

All Implemented Interfaces:

Context, MutableContext

public class CompositeContext
extends Object
implements MutableContext

Context delegating to other contexts "parts".

Author:

Pavel Vlasov

Field Summary

Fields inherited from interface com.hammurapi.util.Context

INSTANCE

Constructor Summary

CompositeContext()

CompositeContext(Context... parts)

Method Summary

void	bind(String name, Object obj) Binds named object.
<T> T	lookup(Class<T> serviceClass) Looks up single object (service) by type.
Object	lookup(String name) Looks up object by name.
<T> Iterator<T>	lookupAll(Class<T> serviceClass) Looks up all services of given type.
<T> void	register(Class<? super T> type, T service) Registers service.
void	setParts(Context... parts)
Object	unbind(String name) Unbinds named object.
<T> void	unregister(Class<? super T> type, T service) Removes service registration.

Methods inherited from class java.lang.Object

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

Constructor Detail

CompositeContext

public CompositeContext()

CompositeContext

public CompositeContext(Context... parts)

Method Detail

setParts

public void setParts(Context... parts)

lookupAll

public <T> Iterator<T> lookupAll(Class<T> serviceClass)

Description copied from interface: Context

Looks up all services of given type.

Specified by:

lookupAll in interface Context

Type Parameters:

T - Service type.

Parameters:

serviceClass - Requested service type.

Returns:

Iterator over services of requested type.

lookup

public <T> T lookup(Class<T> serviceClass)

Description copied from interface: Context

Looks up single object (service) by type.

Specified by:

lookup in interface Context

Type Parameters:

T - Service type.

Parameters:

serviceClass - Requested service type.

Returns:

Service instance or null.

lookup

public Object lookup(String name)

Description copied from interface: Context

Looks up object by name.

Specified by:

lookup in interface Context

Parameters:

name - Object name.

Returns:

named object or null.

bind

public void bind(String name,
                 Object obj)

Description copied from interface: MutableContext

Binds named object.

Specified by:

bind in interface MutableContext

Parameters:

name - Object name.

obj - Object reference. Cannot be null.

register

public <T> void register(Class<? super T> type,
                         T service)

Description copied from interface: MutableContext

Registers service.

Specified by:

register in interface MutableContext

Type Parameters:

T - Service implementation type.

Parameters:

type - Service type.

service - Service instance.

unbind

public Object unbind(String name)

Description copied from interface: MutableContext

Unbinds named object.

Specified by:

unbind in interface MutableContext

Returns:

Object previously bound to given name.

unregister

public <T> void unregister(Class<? super T> type,
                           T service)

Description copied from interface: MutableContext

Removes service registration.

Specified by:

unregister in interface MutableContext