/**
* Copyright 2004-2016 Riccardo Solmi. All rights reserved.
* This file is part of the Whole Platform.
*
* The Whole Platform 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 3 of the License, or
* (at your option) any later version.
*
* The Whole Platform 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 the Whole Platform. If not, see <http://www.gnu.org/licenses/>.
*/
package org.whole.lang.commands;
import org.whole.lang.model.IEntity;
import org.whole.lang.model.InternalIEntity;
import org.whole.lang.util.StringUtils;
/**
* @author Riccardo Solmi
*/
public class EntitySetCommand extends AbstractCommand {
private static final long serialVersionUID = 1L;
public final int sourceIndex;
public final IEntity oldValue;
public final InternalIEntity newValue;
public EntitySetCommand(int executionTime, IEntity source, int index, IEntity oldValue, IEntity newValue) {
super(executionTime, source);
sourceIndex = index;
this.oldValue = oldValue;
this.newValue = (InternalIEntity) newValue;
this.newValue.wSetBindingCommand(this);
}
public CommandKind getKind() {
return CommandKind.SET;
}
public int getSourceIndex() {
return sourceIndex;
}
public IEntity getOldEntity() {
return oldValue;
}
public IEntity getNewEntity() {
return newValue;
}
public void undo() {
source.wSetLastCommand(getPrevCommand());
source.wSet(sourceIndex, oldValue);
}
public void redo() {
source.wSetLastCommand(this);
source.wSet(sourceIndex, newValue);
}
@Override
public void dispose() {
super.dispose();
ICommand command = newValue.wGetBindingCommand();
if (command == this)
newValue.wSetBindingCommand(NullCommand.instance);
}
@Override
protected void appendChange(StringBuilder builder) {
builder.append(StringUtils.simpleId(oldValue));
builder.append(" -> ");
builder.append(StringUtils.simpleId(newValue));
}
}