com.db4o.QEMulti Maven / Gradle / Ivy
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/* Copyright (C) 2004 - 2005 db4objects Inc. http://www.db4o.com
This file is part of the db4o open source object database.
db4o is free software; you can redistribute it and/or modify it under
the terms of version 2 of the GNU General Public License as published
by the Free Software Foundation and as clarified by db4objects' GPL
interpretation policy, available at
http://www.db4o.com/about/company/legalpolicies/gplinterpretation/
Alternatively you can write to db4objects, Inc., 1900 S Norfolk Street,
Suite 350, San Mateo, CA 94403, USA.
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, write to the Free Software Foundation, Inc.,
59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
package com.db4o;
import com.db4o.foundation.*;
/**
*/
public class QEMulti extends QE{
public Collection4 i_evaluators = new Collection4();
QE add(QE evaluator){
i_evaluators.ensure(evaluator);
return this;
}
boolean identity(){
boolean ret = false;
Iterator4 i = i_evaluators.iterator();
while(i.hasNext()){
if(((QE)i.next()).identity()){
ret = true;
}else{
return false;
}
}
return ret;
}
boolean isDefault(){
return false;
}
boolean evaluate(QConObject a_constraint, QCandidate a_candidate, Object a_value){
Iterator4 i = i_evaluators.iterator();
while(i.hasNext()){
if(((QE)i.next()).evaluate(a_constraint, a_candidate, a_value)){
return true;
}
}
return false;
}
public void indexBitMap(boolean[] bits){
Iterator4 i = i_evaluators.iterator();
while(i.hasNext()){
((QE)i.next()).indexBitMap(bits);
}
}
public boolean supportsIndex(){
Iterator4 i = i_evaluators.iterator();
while(i.hasNext()){
if(! ((QE)i.next()).supportsIndex()){
return false;
}
}
return true;
}
}