info.magnolia.objectfactory
Class DefaultComponentProvider

java.lang.Object
  info.magnolia.objectfactory.DefaultComponentProvider

All Implemented Interfaces:

ComponentProvider

public class DefaultComponentProvider
extends Object
implements ComponentProvider

This ComponentProvider is using the configuration provided by SystemProperty. Each property key is the interface/base-class, and the value is either the implementation-to-use class name, an implementation of ComponentFactory which is used to instantiate the desired implementation, or the path to a node in the repository (in the form of repository:/path/to/node or /path/to/node, which defaults to the config repository). In the latter case, the component is constructed via ObservedComponentFactory and reflects (through observation) the contents of the given path.

Version:

$Revision: 25238 $ ($Author: pbaerfuss $)

Author:

Philipp Bracher

Method Summary

void	clear() Used only in tests.
<C> Class<? extends C>	getImplementation(Class<C> type)
protected String	getImplementationName(Class<?> type)
<T> T	getSingleton(Class<T> type)
protected boolean	isConcrete(Class<?> clazz)
<T> T	newInstance(Class<T> type) Creates a new instance of the passed interface / class by using the registered implementation.
void	setImplementation(Class<?> type, String impl) Used only in tests.
void	setInstance(Class<?> type, Object instance) Used only in tests.
void	setInstanceFactory(Class<?> type, ComponentFactory<?> factory) Used only in tests.

Methods inherited from class java.lang.Object

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

Method Detail

getSingleton

public <T> T getSingleton(Class<T> type)

Specified by:

getSingleton in interface ComponentProvider

newInstance

public <T> T newInstance(Class<T> type)

Creates a new instance of the passed interface / class by using the registered implementation. If this fails a MgnlInstantiationException is thrown.

Specified by:

newInstance in interface ComponentProvider

Throws:

MgnlInstantiationException

isConcrete

protected boolean isConcrete(Class<?> clazz)

getImplementation

public <C> Class<? extends C> getImplementation(Class<C> type)
                                     throws ClassNotFoundException

Specified by:

getImplementation in interface ComponentProvider

Throws:

ClassNotFoundException

getImplementationName

protected String getImplementationName(Class<?> type)

setImplementation

public void setImplementation(Class<?> type,
                              String impl)

Used only in tests.

See Also:

info.magnolia.test.ComponentsTestUtil}

setInstance

public void setInstance(Class<?> type,
                        Object instance)

Used only in tests.

See Also:

info.magnolia.test.ComponentsTestUtil}

setInstanceFactory

public void setInstanceFactory(Class<?> type,
                               ComponentFactory<?> factory)

Used only in tests.

See Also:

info.magnolia.test.ComponentsTestUtil}

clear

public void clear()

Used only in tests. Warning: this does NOT clear the *mappings*. With the current/default implementation, this means tests also have to call SystemProperty.clearr()

See Also:

info.magnolia.test.ComponentsTestUtil}