/**
* Merges the information (i.e. compulsory and optional properties) in this anchor with the given
* one
*
* @param a Anchor
* @return Anchor
*/
public Anchor merge(Anchor a) {
if (a != null) {
for (Iterator it = a.getCompulsoryProperties(); it.hasNext(); ) {
OntProperty p = (OntProperty) it.next();
if (!compulsory.contains(p)) compulsory.add(p);
redAnchor = true;
}
for (Iterator it = a.getOptionalProperties(); it.hasNext(); ) {
OntProperty o = (OntProperty) it.next();
if (!optional.contains(o)) optional.add(o);
}
}
sort(false); // DOES THIS EVER GET USED BY QUERY???
return this;
}
/**
* Constructs an anchor for the given node by copying all information from the given anchor
*
* @param a Another anchor
* @param n The node to which the anchor must be attached
* @throws BadAnchorException if the given anchor is null
*/
public Anchor(Anchor a, SGNode n) throws BadAnchorException {
if (a == null)
throw new BadAnchorException("Failed attempt to make an anchor out of a null object");
reader = a.getReader();
node = n;
query = a.isQuery();
compulsory.addAll(a.getCompulsory());
optional.addAll(a.getOptional());
sort(query);
redAnchor = a.isRed();
reader = a.getReader();
id = a.getID();
uri = a.getURI();
n.setAnchor(this);
}
/**
* Constructs an anchor by copying all information from the given anchor
*
* @param a Another anchor
* @throws BadAnchorException if the given anchor is null
*/
public Anchor(Anchor a) throws BadAnchorException {
if (a == null)
throw new BadAnchorException("Failed attempt to make an anchor out of a null object");
merge(a);
query = a.isQuery();
redAnchor = a.isRed();
// datatype = a.isDataType();
reader = a.getReader();
id = a.getID();
uri = a.getURI();
if (a.getNode() != null) {
node = a.getNode();
node.setAnchor(this);
}
}