com.ibm.portal.resolver.cor.helper
Class DefaultContentOperationsRegistryFactory

java.lang.Object
  com.ibm.portal.resolver.cor.helper.DefaultContentOperationsRegistryFactory

All Implemented Interfaces:

ContentOperationsRegistryFactory, org.eclipse.core.runtime.IExecutableExtension, org.eclipse.core.runtime.IExecutableExtensionFactory

public abstract class DefaultContentOperationsRegistryFactory
extends java.lang.Object
implements org.eclipse.core.runtime.IExecutableExtensionFactory, org.eclipse.core.runtime.IExecutableExtension, ContentOperationsRegistryFactory

Baseclass that can be used to easily implement a ContentOperationsRegistryFactory. Implementory typically use this class in the following ways:

• If the getTargetClass() is overridden, the object tries to instantiate the target class by searching for a constructor that uses dependency injection. Per default this is the constructor that takes a dependency interface, however this can be customized by implementing the getConstructor(Class) method. The dependency interface is then automatically implemented via the ContentOperationsRegistryDependencies.createDependencies(Class, Object, String) callback.
• If the createObject(Class, ContentOperationsRegistryDependencies) method is overridden, the subclass can fully customize the instantiation process.

Since:

6.1.0.3

See Also:

createObject(Class, ContentOperationsRegistryDependencies), getTargetClass()

Note:

This interface is designed to be implemented by clients.

Constructor Summary

DefaultContentOperationsRegistryFactory()

Method Summary

java.lang.Object	create()
<T> T	create(java.lang.Class<T> cls, ContentOperationsRegistryDependencies ctx) Creates an object based on a services context
protected java.lang.Object	createObject(java.lang.Class<?> aClass, ContentOperationsRegistryDependencies aContext) Method to override
protected java.lang.reflect.Constructor<?>	getConstructor(java.lang.Class<?> aClass) Returns the constructor that takes the desired dependency object
protected java.lang.reflect.Constructor<?>	getConstructor(java.lang.Class<?> aClass, java.lang.Class<?> aDependency) Returns the constructor that takes a particular dependency
protected java.lang.Object	getDependencies() Returns the extra object that is used to resolve dependencies.
protected java.lang.String	getFilter() Returns the filter string for the dependency callback
protected java.lang.Class<?>	getTargetClass() Returns the target class to actually instantiate
void	setInitializationData(org.eclipse.core.runtime.IConfigurationElement cr, java.lang.String property, java.lang.Object data)
protected java.lang.String	toString(java.lang.Object aObj) Returns a debug version of the object

Methods inherited from class java.lang.Object

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

Constructor Detail

DefaultContentOperationsRegistryFactory

public DefaultContentOperationsRegistryFactory()

Method Detail

create

public java.lang.Object create()
                        throws org.eclipse.core.runtime.CoreException

Specified by:

create in interface org.eclipse.core.runtime.IExecutableExtensionFactory

Throws:

org.eclipse.core.runtime.CoreException

create

public final <T> T create(java.lang.Class<T> cls,
                          ContentOperationsRegistryDependencies ctx)
               throws org.eclipse.core.runtime.CoreException

Description copied from interface: ContentOperationsRegistryFactory

Creates an object based on a services context

Specified by:

create in interface ContentOperationsRegistryFactory

Parameters:

cls - the class object of the requested interface

ctx - the context

Returns:

the object or null

Throws:

org.eclipse.core.runtime.CoreException

createObject

protected java.lang.Object createObject(java.lang.Class<?> aClass,
                                        ContentOperationsRegistryDependencies aContext)
                                 throws org.eclipse.core.runtime.CoreException

Method to override

Parameters:

aClass - class to create

aContext - the context

Returns:

the returned object

Throws:

org.eclipse.core.runtime.CoreException

getConstructor

protected java.lang.reflect.Constructor<?> getConstructor(java.lang.Class<?> aClass)
                                                   throws java.lang.NoSuchMethodException

Returns the constructor that takes the desired dependency object

Parameters:

aClass - the class object, not null

Returns:

the constructor

Throws:

java.lang.NoSuchMethodException - if a suitable constructor could not be located

Since:

8.0

getConstructor

protected final java.lang.reflect.Constructor<?> getConstructor(java.lang.Class<?> aClass,
                                                                java.lang.Class<?> aDependency)
                                                         throws java.lang.NoSuchMethodException

Returns the constructor that takes a particular dependency

Parameters:

aClass - the class object of the target class

aDependency - the dependency interface

Returns:

the constructor that creates the class or null

Throws:

java.lang.NoSuchMethodException

java.lang.NoSuchMethodException - if a suitable constructor could not be located

Since:

8.0

getDependencies

protected java.lang.Object getDependencies()

Returns the extra object that is used to resolve dependencies. Per default the method returns this.

Returns:

the dependency object, may return null

Since:

8.0

getFilter

protected java.lang.String getFilter()

Returns the filter string for the dependency callback

Returns:

the filter string, may be null

Since:

8.0

getTargetClass

protected java.lang.Class<?> getTargetClass()

Returns the target class to actually instantiate

Returns:

the target class, not null

Since:

8.0

setInitializationData

public void setInitializationData(org.eclipse.core.runtime.IConfigurationElement cr,
                                  java.lang.String property,
                                  java.lang.Object data)
                           throws org.eclipse.core.runtime.CoreException

Specified by:

setInitializationData in interface org.eclipse.core.runtime.IExecutableExtension

Throws:

org.eclipse.core.runtime.CoreException

toString

protected java.lang.String toString(java.lang.Object aObj)

Returns a debug version of the object

Parameters:

aObj - the object

Returns:

the debug string

Since:

8.0