org.fcrepo.swing.jtable.ColumnComparator Maven / Gradle / Ivy
/* The contents of this file are subject to the license and copyright terms
* detailed in the license directory at the root of the source tree (also
* available online at http://fedora-commons.org/license/).
*/
package org.fcrepo.swing.jtable;
import java.util.Comparator;
import java.util.Vector;
/**
* ColumnComparator.
*
* NOTICE: Portions created by Claude Duguay are Copyright ©
* Claude Duguay, originally made available at
* http://www.fawcette.com/javapro/2002_08/magazine/columns/visualcomponents/
*
* @author Claude Duguay
* @author Chris Wilper
*/
public class ColumnComparator
implements Comparator {
protected int index;
protected boolean ascending;
public ColumnComparator(int index, boolean ascending) {
this.index = index;
this.ascending = ascending;
}
public int compare(Object one, Object two) {
if (one instanceof Vector && two instanceof Vector) {
Vector vOne = (Vector) one;
Vector vTwo = (Vector) two;
Object oOne = vOne.elementAt(index);
Object oTwo = vTwo.elementAt(index);
if (oOne instanceof Comparable && oTwo instanceof Comparable) {
Comparable cOne = (Comparable) oOne;
Comparable cTwo = (Comparable) oTwo;
if (ascending) {
return cOne.compareTo(cTwo);
} else {
return cTwo.compareTo(cOne);
}
}
}
return 1;
}
}