/* Copyright (C) 2004-2007 Sami Koivu
*
* 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, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
package net.sf.rej.gui.action;
import net.sf.rej.gui.Undoable;
import net.sf.rej.java.instruction.Instruction;
import net.sf.rej.java.instruction.Parameters;
public class ParamModifyAction implements Undoable {
private Instruction instruction;
private int paramIndex;
private Object value;
private Object originalValue;
public ParamModifyAction(Instruction instr, int index, Object value) {
this.instruction = instr;
this.paramIndex = index;
this.value = value;
}
public void execute() {
Parameters params = this.instruction.getParameters();
this.originalValue = params.getObject(this.paramIndex);
params.setValue(this.paramIndex, this.value);
this.instruction.setParameters(params);
}
public void undo() {
Parameters params = this.instruction.getParameters();
params.setValue(this.paramIndex, this.originalValue);
this.instruction.setParameters(params);
}
}