com.hammurapi.util
Class SimpleMutableContext

java.lang.Object
  com.hammurapi.util.SimpleMutableContext

All Implemented Interfaces:

Context, MutableContext

public class SimpleMutableContext
extends Object
implements MutableContext

Simple context implementation.

Author:

Pavel Vlasov

Field Summary

Fields inherited from interface com.hammurapi.util.Context

INSTANCE

Constructor Summary

SimpleMutableContext()

SimpleMutableContext(Map<Class<?>,Collection<?>> services, Map<String,?> bindings)

Method Summary

void	bind(String name, Object value) 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> serviceType, T service) Registers service.
Object	unbind(String name) Unbinds named object.
<T> void	unregister(Class<? super T> serviceType, 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

SimpleMutableContext

public SimpleMutableContext()

SimpleMutableContext

public SimpleMutableContext(Map<Class<?>,Collection<?>> services,
                            Map<String,?> bindings)

Parameters:

classLoader - ClassLoader for services. Can be null.

bindings - Name bindings. Can be null.

Method Detail

bind

public void bind(String name,
                 Object value)

Description copied from interface: MutableContext

Binds named object.

Specified by:

bind in interface MutableContext

Parameters:

name - Object name.

value - Object reference. Cannot be null.

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.

register

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

Description copied from interface: MutableContext

Registers service.

Specified by:

register in interface MutableContext

Type Parameters:

T - Service implementation type.

Parameters:

serviceType - Service type.

service - Service instance.

unregister

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

Description copied from interface: MutableContext

Removes service registration.

Specified by:

unregister in interface MutableContext

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.

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.

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.