/*
* Retrieves the (model) information represented by the symbol. If not set,
* the method returns <code>null</code>.
*/
public Object getUserObject() {
// @todo (egypt): this is not nice, maybe we find a way to have a user object always
// being a model element;
if (activity.isEmpty()) {
return null;
}
return getActivity().findDataMappings(getData(), null);
}
private void setSecondSymbolAsDataSymbol(Symbol secondSymbol, boolean link) {
if (!(secondSymbol instanceof DataSymbol)) {
throw new PublicException("The selected Symbol does not represent an activity.");
} else if ((getDiagram() != null)
&& getDiagram()
.existConnectionBetween(
getFirstSymbol(), secondSymbol, DataMappingConnection.class, true)) {
throw new PublicException("Connection between symbols already exists.");
}
data.setElement(((DataSymbol) secondSymbol).getData());
if (link) {
generateDefaultMappings();
}
}
private void setSecondSymbolAsActivitySymbol(Symbol secondSymbol, boolean link) {
if (!(secondSymbol instanceof ActivitySymbol)) {
throw new PublicException("The selected Symbol does not represent an activity.");
} else if (((ActivitySymbol) secondSymbol)
.getActivity()
.getImplementationType()
.equals(ImplementationType.Route)) {
throw new PublicException("A route activity does not participate in data flow.");
} else if ((getDiagram() != null)
&& getDiagram()
.existConnectionBetween(
getFirstSymbol(), secondSymbol, DataMappingConnection.class, true)) {
throw new PublicException("Connection between symbols already exists.");
}
activity.setElement(((ActivitySymbol) secondSymbol).getActivity());
if (link) {
generateDefaultMappings();
}
}
private IActivity getActivity() {
return (IActivity) activity.getElement();
}
private IData getData() {
return (IData) data.getElement();
}
public DataMappingConnection(ActivitySymbol firstSymbol) {
direction = Direction.OUT;
activity.setElement(firstSymbol.getActivity());
setFirstSymbol(firstSymbol);
}
public DataMappingConnection(DataSymbol firstSymbol) {
direction = Direction.IN;
data.setElement(firstSymbol.getData());
setFirstSymbol(firstSymbol);
}
public String toString() {
return "Data Mapping Connection for " + activity.getElement() + " / " + data.getElement();
}