de.uka.ipd.sdq.beagle.core.pcmconnection

Class EmfHelper

java.lang.Object

de.uka.ipd.sdq.beagle.core.pcmconnection.EmfHelper

public final class EmfHelper
extends Object

Helper class provided by the SDQ for working with PCM repository files. Also see EcoreUtil for more helper functions like EcoreUtil.equals(EObject, EObject) to test for equality.

Method Summary

Modifier and Type	Method and Description
static boolean	checkIdentity(org.eclipse.emf.ecore.EObject identifier1, org.eclipse.emf.ecore.EObject identifier2) Checks for two PCM model elements whether they are the same, i.e.
static boolean	contains(Collection<? extends org.eclipse.emf.ecore.EObject> coll, org.eclipse.emf.ecore.EObject identity) Implements an identifier-based contains.
static org.eclipse.emf.ecore.EObject	loadFromXMIFile(String fileName, org.eclipse.emf.ecore.EPackage ePackage) Loads the root object from an EMF File.
static org.eclipse.emf.ecore.EObject	loadFromXMIFile(String fileName, org.eclipse.emf.ecore.resource.ResourceSet resourceSet, org.eclipse.emf.ecore.EPackage ePackage) Loads the root object from an EMF File.
static boolean	retainAll(Collection<? extends de.uka.ipd.sdq.identifier.Identifier> collection, Collection<? extends org.eclipse.emf.ecore.EObject> itemsToRetain) Collection.retainAll(Collection) for Identifiers based on checkIdentity(EObject, EObject).
static void	saveToXMIFile(org.eclipse.emf.ecore.EObject modelToSave, String fileName) Save the given EObject to the file given by filename.

Methods inherited from class java.lang.Object

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

Method Detail

checkIdentity

public static boolean checkIdentity(org.eclipse.emf.ecore.EObject identifier1,
                                    org.eclipse.emf.ecore.EObject identifier2)

Checks for two PCM model elements whether they are the same, i.e. whether they have the same ID. The model elements have to be derived from Identifier. Note that two systems might use the same assembly contexts and components, but still are two different systems. If one of the Identifiers in null, false is returned.

Parameters:

identifier1 - One Identifier

identifier2 - Another Identifier

Returns:

true if i1.getId().equals(i2.getId()), false otherwise

contains

public static boolean contains(Collection<? extends org.eclipse.emf.ecore.EObject> coll,
                               org.eclipse.emf.ecore.EObject identity)

Implements an identifier-based contains. Calls checkIdentity(EObject, EObject) to compare the Identifier i with the contents of the collection.

Parameters:

coll - A collection of objects.

identity - An identity to search for.

Returns:

true if there is an Identifier in coll with an id equal to i.getID().

retainAll

public static boolean retainAll(Collection<? extends de.uka.ipd.sdq.identifier.Identifier> collection,
                                Collection<? extends org.eclipse.emf.ecore.EObject> itemsToRetain)

Collection.retainAll(Collection) for Identifiers based on checkIdentity(EObject, EObject). This method will leave all identifiers in collection that describe an object is itemsToRetain.

Parameters:

collection - A collection of identifiers.

itemsToRetain - The items whose identifiers should be left in collection.

Returns:

true only if an element was removed from collection.

saveToXMIFile

public static void saveToXMIFile(org.eclipse.emf.ecore.EObject modelToSave,
                                 String fileName)
                          throws IOException

Save the given EObject to the file given by filename.

Parameters:

modelToSave - The EObject to save

fileName - The filename where to save.

Throws:

IOException - If accessing the file fails.

loadFromXMIFile

public static org.eclipse.emf.ecore.EObject loadFromXMIFile(String fileName,
                                                            org.eclipse.emf.ecore.EPackage ePackage)

Loads the root object from an EMF File.

Parameters:

fileName - Name of the file to load from.

ePackage - The package to load for.

Returns:

The root element read.

loadFromXMIFile

public static org.eclipse.emf.ecore.EObject loadFromXMIFile(String fileName,
                                                            org.eclipse.emf.ecore.resource.ResourceSet resourceSet,
                                                            org.eclipse.emf.ecore.EPackage ePackage)

Loads the root object from an EMF File.

Parameters:

fileName - Name of the file to load from.

resourceSet - The resource set to load.

ePackage - The package to load for.

Returns:

The root element read.