org.eclipse.graphiti.internal.services.impl

Class LinkServiceImpl

java.lang.Object

org.eclipse.graphiti.internal.services.impl.LinkServiceImpl

All Implemented Interfaces:

ILinkService

public final class LinkServiceImpl
extends java.lang.Object
implements ILinkService

Constructor Summary

Constructors

Constructor and Description
LinkServiceImpl()

Method Summary

Modifier and Type	Method and Description
org.eclipse.emf.ecore.EObject[]	getAllBusinessObjectsForLinkedPictogramElement(PictogramElement pictogramElement) Returns all business objects which are linked to the given pictogram element.
org.eclipse.emf.ecore.EObject	getBusinessObjectForLinkedPictogramElement(PictogramElement pictogramElement) Returns the first of possibly several business objects which are linked to the given pictogram element.
PictogramLink	getLinkForPictogramElement(PictogramElement pictogramElement) Returns the pictogram link referencing the given pictogram element.
Property	getLinkProperty(PictogramElement pictogramElement) Gets the link property to a given pictogram element.
java.util.List<PictogramElement>	getPictogramElements(Diagram diagram, org.eclipse.emf.ecore.EObject eObject) get all pictogram elements which references the given eObject.
java.util.List<PictogramElement>	getPictogramElements(Diagram diagram, java.util.List<org.eclipse.emf.ecore.EObject> eObjects, boolean onlyActive) Gets the pictogram elements.
boolean	hasLinkProperty(PictogramElement pictogramElement, java.lang.String propertyValue) Checks existence and value of the link property to a given pictogram element.
void	setLinkProperty(PictogramElement pictogramElement, java.lang.String propertyValue) Adds or modifies the link property to a given pictogram element.

Methods inherited from class java.lang.Object

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

Constructor Detail

LinkServiceImpl

public LinkServiceImpl()

Method Detail

getAllBusinessObjectsForLinkedPictogramElement

public org.eclipse.emf.ecore.EObject[] getAllBusinessObjectsForLinkedPictogramElement(PictogramElement pictogramElement)

Returns all business objects which are linked to the given pictogram element.

Specified by:

getAllBusinessObjectsForLinkedPictogramElement in interface ILinkService

Parameters:

pictogramElement - The pictogram element for which to return the business objects.

Returns:

The business objects which are linked to the given pictogram element. Can be empty but not null.

getBusinessObjectForLinkedPictogramElement

public org.eclipse.emf.ecore.EObject getBusinessObjectForLinkedPictogramElement(PictogramElement pictogramElement)

Returns the first of possibly several business objects which are linked to the given pictogram element. This is a convenience method for #getAllBusinessObjectsForPictogramElement(PictogramElement), because in many use cases only a single business object is linked.

Specified by:

getBusinessObjectForLinkedPictogramElement in interface ILinkService

Parameters:

pictogramElement - The pictogram element for which to return the business objects.

Returns:

The first of possibly several business objects which are linked to the given pictogram element. Can be null.

getLinkForPictogramElement

public PictogramLink getLinkForPictogramElement(PictogramElement pictogramElement)

Returns the pictogram link referencing the given pictogram element.

Specified by:

getLinkForPictogramElement in interface ILinkService

Parameters:

pictogramElement - the pictogram element

Returns:

the pictogram link referencing the given pictogram element

getPictogramElements

public java.util.List<PictogramElement> getPictogramElements(Diagram diagram,
                                                             org.eclipse.emf.ecore.EObject eObject)

get all pictogram elements which references the given eObject.

Specified by:

getPictogramElements in interface ILinkService

Parameters:

eObject - the ref object

diagram - the diagram

Returns:

the pictogram elements

getPictogramElements

public java.util.List<PictogramElement> getPictogramElements(Diagram diagram,
                                                             java.util.List<org.eclipse.emf.ecore.EObject> eObjects,
                                                             boolean onlyActive)

Gets the pictogram elements.

Specified by:

getPictogramElements in interface ILinkService

Parameters:

diagram - the diagram

eObjects - business objects

onlyActive - if true, then only active pictogram elements of the diagram will be considered; if false all pictogram elements will be considered

Returns:

all (active) pictogram elements in the diagram, which have at least one reference to one of the business objects

hasLinkProperty

public boolean hasLinkProperty(PictogramElement pictogramElement,
                               java.lang.String propertyValue)

Checks existence and value of the link property to a given pictogram element. It is intended to use this property to be able to distinguish multiple pictogram elements linked to same domain model object.

Specified by:

hasLinkProperty in interface ILinkService

Parameters:

pictogramElement - the pictogram element

propertyValue - the value to check against the property

Returns:

true if link property exists and has the given value; false if not

setLinkProperty

public void setLinkProperty(PictogramElement pictogramElement,
                            java.lang.String propertyValue)

Adds or modifies the link property to a given pictogram element. It is intended to use this property to be able to distinguish multiple pictogram elements linked to same domain model object.

Specified by:

setLinkProperty in interface ILinkService

Parameters:

pictogramElement - the pictogram element

propertyValue - the new value for the link property

getLinkProperty

public Property getLinkProperty(PictogramElement pictogramElement)

Gets the link property to a given pictogram element.

Specified by:

getLinkProperty in interface ILinkService

Parameters:

pictogramElement - the pictogram element

Returns:

the link property