/**
* Merge the current value's nodeset set by lookupKey() with _nodes.
*
* @deprecated
*/
public void merge(KeyIndex other) {
if (other == null) return;
if (other._nodes != null) {
if (_nodes == null) {
_nodes = (IntegerArray) other._nodes.clone();
} else {
_nodes.merge(other._nodes);
}
}
}
/**
* Retrieve nodes for a particular key value or a particular id argument value.
*
* @param root The root node of the document containing the context node
* @param keyValue The key value of id string argument value
* @return an {@link IntegerArray} of the resulting nodes
*/
protected IntegerArray lookupNodes(int root, String keyValue) {
IntegerArray result = null;
// Get mapping from key values/IDs to DTM nodes for this document
Hashtable index = (Hashtable) _rootToIndexMap.get(new Integer(root));
if (!_isKeyIterator) {
// For id function, tokenize argument as whitespace separated
// list of values and look up nodes identified by each ID.
final StringTokenizer values = new StringTokenizer(keyValue, " \n\t");
while (values.hasMoreElements()) {
final String token = (String) values.nextElement();
IntegerArray nodes = null;
// Does the ID map to any node in the document?
if (index != null) {
nodes = (IntegerArray) index.get(token);
}
// If input was from W3C DOM, use DOM's getElementById to do
// the look-up.
if (nodes == null && _enhancedDOM != null && _enhancedDOM.hasDOMSource()) {
nodes = getDOMNodeById(token);
}
// If we found any nodes, merge them into the cumulative
// result
if (nodes != null) {
if (result == null) {
result = (IntegerArray) nodes.clone();
} else {
result.merge(nodes);
}
}
}
} else if (index != null) {
// For key function, map key value to nodes
result = (IntegerArray) index.get(keyValue);
}
return result;
}
/**
* This method must be called by the code generated by the id() function prior to returning the
* node iterator. The lookup code for key() and id() differ in the way the lookup value can be
* whitespace separated list of tokens for the id() function, but a single string for the key()
* function.
*
* @deprecated
*/
public void lookupId(Object value) {
// Clear _nodes array
_nodes = null;
final StringTokenizer values = new StringTokenizer((String) value, " \n\t");
while (values.hasMoreElements()) {
final String token = (String) values.nextElement();
IntegerArray nodes = (IntegerArray) _index.get(token);
if (nodes == null && _enhancedDOM != null && _enhancedDOM.hasDOMSource()) {
nodes = getDOMNodeById(token);
}
if (nodes == null) continue;
if (_nodes == null) {
nodes = (IntegerArray) nodes.clone();
_nodes = nodes;
} else {
_nodes.merge(nodes);
}
}
}
