Class EmptyGraphCutData

codecut-gui/src/main/java/graphcut/EmptyGraphCutData.java:42–88

empty data used to avoid null checks

 * empty data used to avoid null checks
 */
public class EmptyGraphCutData implements GraphCutData {
	
	@Override
	public Namespace getNamespace() {
		throw new UnsupportedOperationException("Empty data has no namespace");
	}
	
	@Override 
	public boolean isNamespace(Namespace ns) {
		return false;
	}
	
	@Override
	public GraphCutGraph getGraph() {
		throw new UnsupportedOperationException("Empty data has no graph");
	}
	
	@Override
	public NamespaceEdgeCache getNamespaceEdgeCache() {
		throw new UnsupportedOperationException("Empty data has no namespace edge cache");
	}
	
	@Override
	public boolean hasResults() {
		return false;
	}
	
	@Override
	public void dispose() {
		//nothing
	}
	
	@Override
	public boolean isInitialized() {
		return false;
	}
	
	@Override
	public GraphPerspectiveInfo<GraphCutVertex, GraphCutEdge> getGraphPerspective(){
		throw new UnsupportedOperationException("Empty data does not need view information");
	}
	
	@Override
	public void setGraphPerspective(GraphPerspectiveInfo<GraphCutVertex, GraphCutEdge> info) {
		throw new UnsupportedOperationException("Empty data does not need view information");
	}
}