/* This file is part of the db4o object database http://www.db4o.com
Copyright (C) 2004 - 2011 Versant Corporation http://www.versant.com
db4o is free software; you can redistribute it and/or modify it under
the terms of version 3 of the GNU General Public License as published
by the Free Software Foundation.
db4o is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License along
with this program. If not, see http://www.gnu.org/licenses/. */
package com.db4o.internal.query.processor;
/**
* @exclude
*/
public class QENot extends QE{
@decaf.Public
private QE i_evaluator;
public QENot(){
// CS
}
QENot(QE a_evaluator){
i_evaluator = a_evaluator;
}
QE add(QE evaluator){
if(! (evaluator instanceof QENot)){
i_evaluator = i_evaluator.add(evaluator);
}
return this;
}
public QE evaluator() {
return i_evaluator;
}
public boolean identity(){
return i_evaluator.identity();
}
boolean isDefault(){
return false;
}
boolean evaluate(QConObject a_constraint, InternalCandidate a_candidate, Object a_value){
return ! i_evaluator.evaluate(a_constraint, a_candidate, a_value);
}
boolean not(boolean res){
return ! res;
}
public void indexBitMap(boolean[] bits){
i_evaluator.indexBitMap(bits);
for (int i = 0; i < 4; i++) {
bits[i] = ! bits[i];
}
}
public boolean supportsIndex(){
return i_evaluator.supportsIndex();
}
}