pjs/grendel/addressbook/addresscard/TermOr.java

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2.6 KiB
Java

/* -*- Mode: java; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* The contents of this file are subject to the Mozilla Public License
* Version 1.0 (the "License"); you may not use this file except in
* compliance with the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS"
* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
* the License for the specific language governing rights and limitations
* under the License.
*
* The Original Code is the Grendel mail/news client.
*
* The Initial Developer of the Original Code is Netscape Communications
* Corporation. Portions created by Netscape are Copyright (C) 1997
* Netscape Communications Corporation. All Rights Reserved.
*
* Created: Lester Schueler <lesters@netscape.com>, 14 Nov 1997.
*
* Contributors: Jeff Galyan <talisman@anamorphic.com>
* Christoph Toshok <toshok@netscape.com>
*/
package grendel.addressbook.addresscard;
//************************
//************************
public class TermOr implements ITerm {
ITerm fLeftTerm;
ITerm fRightTerm;
public TermOr (ITerm aLeftTerm, ITerm aRightTerm) {
fLeftTerm = aLeftTerm;
fRightTerm = aRightTerm;
}
public String getExpression(IQueryString iqs) {
return iqs.opOr (fLeftTerm, fRightTerm);
}
/** Logically or the left and right sets.
*/
public AC_IDSet getSet (IQuerySet iqs) {
AC_IDSet leftCardIDs = fLeftTerm.getSet (iqs);
AC_IDSet rightCardIDs = fRightTerm.getSet (iqs);
//merge and sort the left and right lists.
AC_IDSet mergedIDs = new AC_IDSet (leftCardIDs);
mergedIDs.addSet (rightCardIDs);
mergedIDs.sort(AC_IDSet.ASCENDING);
//Don't process any more if the merged set is emtpy.
if (0 == mergedIDs.size())
return mergedIDs; //return an empty merged set.
//prime the pump.
String lastID = (String) mergedIDs.elementAt(0);
//remove any duplicates from the SORTED list.
for (int i = 0; i < mergedIDs.size(); ) {
String currentID = (String) mergedIDs.elementAt(i);
//if the last equals this (this list is sorted) then remove this duplicate.
if (lastID.equals (currentID)) {
mergedIDs.removeElementAt (i);
}
else {
lastID = currentID;
i++; //advance to the next cardID
}
}
return mergedIDs;
}
/** No-op for now
* (Jeff)
*/
public AC_IDSet evaluate_ACSP (IQuerySet iqs) { return null; }
}