public static boolean isValidXDIArc(XDIArc XDIarc) {
if (XDIarc == null) throw new NullPointerException();
if (XdiEntitySingleton.isValidXDIArc(XDIarc)) return true;
if (XdiEntityInstanceUnordered.isValidXDIArc(XDIarc)) return true;
if (XdiEntityInstanceOrdered.isValidXDIArc(XDIarc)) return true;
return false;
}
/**
* Checks if a context node is a valid XDI entity.
*
* @param contextNode The context node to check.
* @return True if the context node is a valid XDI entity.
*/
public static boolean isValid(ContextNode contextNode) {
if (contextNode == null) throw new NullPointerException();
if (XdiEntitySingleton.isValid(contextNode)) return true;
if (XdiEntityInstanceUnordered.isValid(contextNode)) return true;
if (XdiEntityInstanceOrdered.isValid(contextNode)) return true;
return false;
}
/**
* Factory method that creates an XDI entity bound to a given context node.
*
* @param contextNode The context node that is an XDI entity.
* @return The XDI entity.
*/
public static XdiEntity fromContextNode(ContextNode contextNode) {
if (contextNode == null) throw new NullPointerException();
XdiEntity xdiEntity = null;
if ((xdiEntity = XdiEntitySingleton.fromContextNode(contextNode)) != null) return xdiEntity;
if ((xdiEntity = XdiEntityInstanceUnordered.fromContextNode(contextNode)) != null)
return xdiEntity;
if ((xdiEntity = XdiEntityInstanceOrdered.fromContextNode(contextNode)) != null)
return xdiEntity;
return null;
}
