/**
*
* Copyright (c) 2014, the Railo Company Ltd. All rights reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*
**/
package lucee.runtime.type.comparator;
import lucee.runtime.exp.PageException;
import lucee.runtime.op.Caster;
import lucee.runtime.op.Operator;
/**
* Implementation of a Comparator, compares to Softregister Objects
*/
public final class NumberSortRegisterComparator implements ExceptionComparator {
private boolean isAsc;
private PageException pageException=null;
/**
* constructor of the class
* @param isAsc is ascendinf or descending
*/
public NumberSortRegisterComparator(boolean isAsc) {
this.isAsc=isAsc;
}
/**
* @return Returns the expressionException.
*/
@Override
public PageException getPageException() {
return pageException;
}
@Override
public int compare(Object oLeft, Object oRight) {
try {
if(pageException!=null) return 0;
else if(isAsc) return compareObjects(oLeft, oRight);
else return compareObjects(oRight, oLeft);
} catch (PageException e) {
pageException=e;
return 0;
}
}
private int compareObjects(Object oLeft, Object oRight) throws PageException {
/*return Operator.compare(
((SortRegister)oLeft).getValue(),
((SortRegister)oRight).getValue()
);
*/
return Operator.compare(
Caster.toDoubleValue(((SortRegister)oLeft).getValue())
,
Caster.toDoubleValue(((SortRegister)oRight).getValue())
);
}
}