org.eclipse.emf.ecore.util
Class ComposedSwitch<T>

java.lang.Object
  org.eclipse.emf.ecore.util.Switch<T>
      org.eclipse.emf.ecore.util.ComposedSwitch<T>

public class ComposedSwitch<T>
extends Switch<T>

Composes multiple switches in order to handle instances of classes defined in multiple packages.

Since:

2.7

Constructor Summary

ComposedSwitch()
Creates a new ComposedSwitch.

ComposedSwitch(java.util.Collection<? extends Switch<T>> switches)
Creates a new ComposedSwitch.

Method Summary

void	addSwitch(Switch<T> sw)
protected T	delegatedDoSwitch(Switch<T> delegate, EClass theEClass, EObject theEObject) Call delegate.
protected T	doSwitch(EClass theEClass, EObject theEObject) Calls caseXXX for each (super-)class of the model until one returns a non-null result; it yields that result.
protected Switch<T>	findDelegate(EPackage ePackage) Finds a suitable delegate for the given package.
boolean	isSwitchFor(EPackage ePackage) Indicates whether the receiver is a switch for the specified package.
void	removeSwitch(Switch<T> sw)

Methods inherited from class org.eclipse.emf.ecore.util.Switch

defaultCase, doSwitch, doSwitch

Methods inherited from class java.lang.Object

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

Constructor Detail

ComposedSwitch

public ComposedSwitch()

Creates a new ComposedSwitch.

ComposedSwitch

public ComposedSwitch(java.util.Collection<? extends Switch<T>> switches)

Creates a new ComposedSwitch.

Parameters:

switches - The switches to which the composed switch will delegate. The list should generally include switches for all the packages the composed switch will be expected to handle.

Method Detail

addSwitch

public void addSwitch(Switch<T> sw)

removeSwitch

public void removeSwitch(Switch<T> sw)

doSwitch

protected T doSwitch(EClass theEClass,
                     EObject theEObject)

Description copied from class: Switch

Calls caseXXX for each (super-)class of the model until one returns a non-null result; it yields that result.

Overrides:

doSwitch in class Switch<T>

Parameters:

theEClass - the class or superclass of eObject to consider. The class's containing EPackage determines whether the receiving switch object can handle the request.

theEObject - the model object to pass to the appropriate caseXXX.

Returns:

the first non-null result returned by a caseXXX call.

delegatedDoSwitch

protected T delegatedDoSwitch(Switch<T> delegate,
                              EClass theEClass,
                              EObject theEObject)

Call delegate.doSwitch(theEClass, theEObject).

Since:

2.8

findDelegate

protected Switch<T> findDelegate(EPackage ePackage)

Finds a suitable delegate for the given package.

Since:

2.8

isSwitchFor

public boolean isSwitchFor(EPackage ePackage)

Description copied from class: Switch

Indicates whether the receiver is a switch for the specified package.

Specified by:

isSwitchFor in class Switch<T>

Parameters:

ePackage - the package of interest.

Returns:

true if the receiver is a switch for package.