public IReason updateNeeded(IUpdateContext context) {
// retrieve name from pictogram model
String pictogramName = null;
PictogramElement pictogramElement = context.getPictogramElement();
if (pictogramElement instanceof ContainerShape) {
ContainerShape cs = (ContainerShape) pictogramElement;
for (Shape shape : cs.getChildren()) {
if (shape.getGraphicsAlgorithm() instanceof Text) {
Text text = (Text) shape.getGraphicsAlgorithm();
pictogramName = text.getValue();
}
}
}
// retrieve name from business model
String businessName = null;
Object bo = getBusinessObjectForPictogramElement(pictogramElement);
if (bo instanceof EClass) {
EClass eClass = (EClass) bo;
businessName = eClass.getName();
}
// update needed, if names are different
boolean updateNameNeeded =
((pictogramName == null && businessName != null)
|| (pictogramName != null && !pictogramName.equals(businessName)));
if (updateNameNeeded) {
return Reason.createTrueReason("Name is out of date");
} else {
return Reason.createFalseReason();
}
}
public boolean update(IUpdateContext context) {
// retrieve name from business model
String businessName = null;
PictogramElement pictogramElement = context.getPictogramElement();
Object bo = getBusinessObjectForPictogramElement(pictogramElement);
if (bo instanceof EClass) {
EClass eClass = (EClass) bo;
businessName = eClass.getName();
}
// Set name in pictogram model
if (pictogramElement instanceof ContainerShape) {
ContainerShape cs = (ContainerShape) pictogramElement;
for (Shape shape : cs.getChildren()) {
if (shape.getGraphicsAlgorithm() instanceof Text) {
Text text = (Text) shape.getGraphicsAlgorithm();
text.setValue(businessName);
return true;
}
}
}
return false;
}
public boolean canUpdate(IUpdateContext context) {
// return true, if linked business object is a EClass
Object bo = getBusinessObjectForPictogramElement(context.getPictogramElement());
return (bo instanceof EClass);
}