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

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

Direct Known Subclasses:

ChangeSwitch, ComposedSwitch, Ecore2EcoreSwitch, Ecore2XMLSwitch, EcoreSwitch, GenModelSwitch, MappingSwitch, TreeSwitch, XcoreSwitch

public abstract class Switch<T>
extends java.lang.Object

An abstract base class for all switch classes.

Since:

2.7

Constructor Summary

Switch()

Method Summary

T	defaultCase(EObject eObject) Returns the result of interpreting the object as an instance of 'EObject'.
protected T	doSwitch(EClass eClass, EObject eObject) Calls caseXXX for each (super-)class of the model until one returns a non-null result; it yields that result.
T	doSwitch(EObject eObject) Dispatches the target object to the appropriate caseXXX methods.
protected T	doSwitch(int classifierID, EObject eObject) Calls caseXXX for each class of the model until one returns a non-null result; it yields that result.
protected abstract boolean	isSwitchFor(EPackage ePackage) Indicates whether the receiver is a switch for the specified package.

Methods inherited from class java.lang.Object

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

Constructor Detail

Switch

public Switch()

Method Detail

defaultCase

public T defaultCase(EObject eObject)

Returns the result of interpreting the object as an instance of 'EObject'. This implementation returns null; returning a non-null result will terminate the switch, but this is the last case anyway.

Parameters:

eObject - the target of the switch.

Returns:

the result of interpreting the object as an instance of 'EObject'.

See Also:

doSwitch(org.eclipse.emf.ecore.EObject)

doSwitch

protected T doSwitch(EClass eClass,
                     EObject eObject)

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

Parameters:

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

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

Returns:

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

doSwitch

public T doSwitch(EObject eObject)

Dispatches the target object to the appropriate caseXXX methods.

Parameters:

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

Returns:

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

doSwitch

protected T doSwitch(int classifierID,
                     EObject eObject)

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

Parameters:

classifierID - the classifier ID of the (super-)class of eObject relative to its defining EPackage.

eObject - the model object to pass to the appropriate caseXXX method.

Returns:

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

isSwitchFor

protected abstract boolean isSwitchFor(EPackage ePackage)

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

Parameters:

ePackage - the package of interest.

Returns:

true if the receiver is a switch for package.