/*
* $Id: TracebackNode.java,v 1.1 2006/01/18 20:12:04 ahmed Exp $
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program 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 jaligner;
/**
* Traceback node
*
* @author Bram Minnaert
* @author Ahmed Moustafa
*/
public final class TracebackNode {
/**
* Direction
*/
private byte direction;
/**
* Length of gap (for up and left directions)
*/
private int length;
/**
* Constructor
*/
public TracebackNode() {
super();
}
/**
* Sets the direction to diagonal
*
*/
public void setDiagonal() {
direction = Directions.DIAGONAL;
length = 0;
}
/**
* Sets the direction to up
*
* @param length
* length of gap
*/
public void setUp(int length) {
direction = Directions.UP;
this.length = length;
}
/**
* Sets the direction to left
*
* @param length
* length of gap
*/
public void setLeft(int length) {
direction = Directions.LEFT;
this.length = length;
}
/**
* Sets the direction to stop
*/
public void setStop() {
direction = Directions.STOP;
length = 0;
}
/**
* @return Returns the direction.
*/
public byte getDirection() {
return direction;
}
/**
* @return Returns the length.
*/
public int getLength() {
return length;
}
}