source: trunk/src/ws/fugue88/jpath/Path.java

/*
 * Created on Apr 24, 2005
 *
 * $Log$
 * Revision 1.3  2005/09/21 22:00:45  dsowen
 * Split out the access stuff into accesslib.
 * New Creator interface off-loads object creation to user.
 *
 * Revision 1.2  2005/08/19 17:51:17  dsowen
 * Fixed: NPEs when using accessors from paths, &c.  Included tests.
 * Fixed: parsing exception wasn't very enlightening.
 *
 * Revision 1.1  2005/08/03 00:35:29  dsowen
 * Initial commit.
 *
 * Revision 1.1  2005/04/25 01:39:53  dowen
 * Preliminary path support.
 *
 */
package ws.fugue88.jpath;

import java.util.Collections;
import java.util.Iterator;
import java.util.List;

/**
 * @author dsowen
 */
public class Path {

        Path(final List parts)
        {
                _parts = parts;
        }

        public Path parents()
        {
                return new Path(_parts.subList(0, _parts.size() - 1));
        }

        public Path children()
        {
                return new Path(_parts.subList(1, _parts.size()));
        }

        public PathPart head()
        {
                return (PathPart)_parts.get(0);
        }

        public PathPart terminal()
        {
                return (PathPart)_parts.get(_parts.size() - 1);
        }

        public Iterator iterator()
        {
                return Collections.unmodifiableList(_parts).iterator();
        }

        public boolean isEmpty()
        {
                return _parts.isEmpty();
        }

        public String toString()
        {
                final StringBuffer buff = new StringBuffer();
                for(final Iterator i = _parts.iterator(); i.hasNext();) {
                        buff.append(i.next());
                }
                return buff.toString();
        }

        private final List _parts;
}