org.eclipse.emf.ecp.view.spi.editor.controls

Class Helper

java.lang.Object

org.eclipse.emf.ecp.view.spi.editor.controls.Helper

public final class Helper
extends Object

Helper class for editor controls.

Since:

1.5

Author:

Eugen Neufeld

Method Summary

Modifier and Type	Method and Description
static Set<org.eclipse.emf.ecore.EClass>	getDatasegmentSubclasses(org.eclipse.emf.ecore.EClass root) Determines all EClasses that can be reached from this EClass.
static void	getReferenceMap(org.eclipse.emf.ecore.EClass parent, Map<org.eclipse.emf.ecore.EClass,org.eclipse.emf.ecore.EReference> childParentReferenceMap) Fills a map based on all containment features found from the provided EClass onward.
static List<org.eclipse.emf.ecore.EReference>	getReferencePath(org.eclipse.emf.ecore.EClass rootEClass, org.eclipse.emf.ecore.EClass selectedClass, Map<org.eclipse.emf.ecore.EClass,org.eclipse.emf.ecore.EReference> childParentReferenceMap) Retrieves the reference path for a selected EClass from the provided map.
static org.eclipse.emf.ecore.EClass	getRootEClass(ECPProject project) Retrieves the root ECLass form a project, with the assumption that the project consists only of a VView.
static org.eclipse.emf.ecore.EClass	getRootEClass(org.eclipse.emf.ecore.EObject eObject) Retrieves the root ECLass form an EObject.
static boolean	hasFeaturePropertyDescriptor(org.eclipse.emf.ecore.EClass eClass, org.eclipse.jface.viewers.TreePath treePath) Checks whether a EStructuralFeature has an IItemPropertyDescriptor.
static boolean	hasFeaturePropertyDescriptor(org.eclipse.emf.ecore.EStructuralFeature featureToCheck) Checks whether a EStructuralFeature has an IItemPropertyDescriptor.

Methods inherited from class java.lang.Object

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

Method Detail

getRootEClass

public static org.eclipse.emf.ecore.EClass getRootEClass(ECPProject project)

Retrieves the root ECLass form a project, with the assumption that the project consists only of a VView.

Parameters:

project - the project to check

Returns:

the root EClass

getRootEClass

public static org.eclipse.emf.ecore.EClass getRootEClass(org.eclipse.emf.ecore.EObject eObject)

Retrieves the root ECLass form an EObject. The hierarchy of the provided EObject is checked for VView.

Parameters:

eObject - the EObject to check

Returns:

the root EClass

getReferenceMap

public static void getReferenceMap(org.eclipse.emf.ecore.EClass parent,
                                   Map<org.eclipse.emf.ecore.EClass,org.eclipse.emf.ecore.EReference> childParentReferenceMap)

Fills a map based on all containment features found from the provided EClass onward.

Parameters:

parent - the EClass to use as root

childParentReferenceMap - the map to fill

getReferencePath

public static List<org.eclipse.emf.ecore.EReference> getReferencePath(org.eclipse.emf.ecore.EClass rootEClass,
                                                                      org.eclipse.emf.ecore.EClass selectedClass,
                                                                      Map<org.eclipse.emf.ecore.EClass,org.eclipse.emf.ecore.EReference> childParentReferenceMap)

Retrieves the reference path for a selected EClass from the provided map.

Parameters:

rootEClass - the root EClass of the view model

selectedClass - the EClass to get the reference path for

childParentReferenceMap - the map to use

Returns:

the reference path

getDatasegmentSubclasses

public static Set<org.eclipse.emf.ecore.EClass> getDatasegmentSubclasses(org.eclipse.emf.ecore.EClass root)

Determines all EClasses that can be reached from this EClass.

Parameters:

root - the EClass to analyze

Returns:

the Set of ECLasses which can be references from this control

hasFeaturePropertyDescriptor

public static boolean hasFeaturePropertyDescriptor(org.eclipse.emf.ecore.EStructuralFeature featureToCheck)

Checks whether a EStructuralFeature has an IItemPropertyDescriptor.

Parameters:

featureToCheck - the EStructuralFeature to check

Returns:

true if a IItemPropertyDescriptor could be found, false otherwise

hasFeaturePropertyDescriptor

public static boolean hasFeaturePropertyDescriptor(org.eclipse.emf.ecore.EClass eClass,
                                                   org.eclipse.jface.viewers.TreePath treePath)

Checks whether a EStructuralFeature has an IItemPropertyDescriptor.

Parameters:

eClass - the root EClass

treePath - the TreePath to check

Returns:

true if a IItemPropertyDescriptor could be found, false otherwise