source: josm/src/org/openstreetmap/josm/command/SequenceCommand.java@ 100

package org.openstreetmap.josm.command;

import java.util.Collection;

import javax.swing.tree.DefaultMutableTreeNode;
import javax.swing.tree.MutableTreeNode;

import org.openstreetmap.josm.data.osm.OsmPrimitive;

/**
 * A command consisting of a sequenz of other commands. Executes the other commands
 * and undo them in reverse order.
 * @author imi
 */
public class SequenceCommand extends Command {

        /**
         * The command sequenz to be executed.
         */
        private Command[] sequence;
        private final String name;

        /**
         * Create the command by specifying the list of commands to execute.
         * @param sequenz The sequenz that should be executed.
         */
        public SequenceCommand(String name, Collection<Command> sequenz) {
                this.name = name;
                this.sequence = new Command[sequenz.size()];
                this.sequence = sequenz.toArray(this.sequence);
        }
        
        @Override public void executeCommand() {
                for (Command c : sequence)
                        c.executeCommand();
        }

        @Override public void undoCommand() {
                for (int i = sequence.length-1; i >= 0; --i)
                        sequence[i].undoCommand();
        }

        @Override public void fillModifiedData(Collection<OsmPrimitive> modified, Collection<OsmPrimitive> deleted, Collection<OsmPrimitive> added) {
                for (Command c : sequence)
                        c.fillModifiedData(modified, deleted, added);
        }

        @Override public MutableTreeNode description() {
                DefaultMutableTreeNode root = new DefaultMutableTreeNode("Sequence: "+name);
                for (Command c : sequence)
                        root.add(c.description());
            return root;
    }
}