Metacat

import edu.ucsb.nceas.metacat.util.SystemUtil;

import edu.ucsb.nceas.metacat.util.UtilException;

    		try {

    			if (operator != null

						&& operator.equalsIgnoreCase(UNION)

						&& SystemUtil.getPathsForIndexing().contains(

								newTerm.getPathExpression())) {

					// System.out.println("in only union branch in handle new

					// query term");

					for (int i = 0; i < queryTermsInPathIndex.size(); i++) {

						QueryTerm term = (QueryTerm) queryTermsInPathIndex.elementAt(i);

						if (term != null && term.hasSameSearchValue(newTerm)) {

							// System.out.println("1Move a query term and add a

							// new query term into search value in handle new

							// query term");

							// find a target which has same search value

							Vector newSameValueVector = new Vector();

							newSameValueVector.add(term);

							newSameValueVector.addElement(newTerm);

							queryTermsWithSameValue.add(newSameValueVector);

							queryTermsInPathIndex.remove(i);

							return;

						}

					}

					// no same search value was found in queryTerms.

					// then we need search queryTermsWithSameValue

					for (int i = 0; i < queryTermsWithSameValue.size(); i++) {

						Vector sameValueVec = (Vector) queryTermsWithSameValue

								.elementAt(i);

						// we only compare the first query term

						QueryTerm term = (QueryTerm) sameValueVec.elementAt(0);

						if (term != null && term.hasSameSearchValue(newTerm)) {

							// System.out.println("2add a new query term into

							// search value in handle new query term");

							sameValueVec.add(newTerm);

							return;

						}

					}

					// nothing found, but the search path is still in

					// xml_path_index,

					// save it into queryTermsInPathIndex vector

					queryTermsInPathIndex.add(newTerm);

					return;

				}    		

    		} catch (UtilException ue) {

				logMetacat.warn("Could not get index paths: " + ue.getMessage());

			}