getRepresentation
In the com.ptc.wvs.common.ui.VisualizationHelper there are also some convenience methods for getting Representations from a Representable.
public Representation getRepresentation(Persistable d)
As noted previously, the relationship of Representables to Representations is one to many. However, one of the Representations may be noted as the “default” Representation. There will be 0 or 1 defaults. The above method will return the default Representation if one exists. Otherwise, null will be returned.public Representation getRepresentation(Persistable d, String repName)
public Representation getRepresentation (Persistable d,
String repName)
The method above will return the Representation associated to the Persistable with the name passed in to the repName argument. If there are no Representations or one can’t be found with the supplied name, null will be returned.
public QueryResult getRepresentations(Persistable d)
This method will return all of the Representations associated to the Persistable passed in. If there are no Representations, null will be returned.
All three methods in this subsection require that you have an instance of VisualizationHelper:
VisualizationHelper vizHelper = new VisualizationHelper();
Representation rep = vizHelper.getRepresentation(d);
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All three of the above methods make use of the findRepresentable method, so you do not need to worry about actively associated parts when calling it. Additionally, if the Persistable passed in is not a Representable, null will be returned.
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