source: josm/src/org/openstreetmap/josm/command/AddCommand.java@ 40

package org.openstreetmap.josm.command;

import java.util.Collection;

import org.openstreetmap.josm.data.osm.DataSet;
import org.openstreetmap.josm.data.osm.OsmPrimitive;
import org.openstreetmap.josm.data.osm.visitor.AddVisitor;
import org.openstreetmap.josm.data.osm.visitor.DeleteVisitor;

/**
 * A command that adds an osm primitive to a dataset. Keys cannot be added this
 * way. Use ChangeKeyValueCommand instead.
 * 
 * @author imi
 */
public class AddCommand implements Command {

        /**
         * The dataset this command operates on.
         */
        private DataSet ds;

        /**
         * The primitive to add to the dataset.
         */
        private final OsmPrimitive osm;

        /**
         * Create the command and specify the element to add.
         */
        public AddCommand(DataSet ds, OsmPrimitive osm) {
                this.ds = ds;
                this.osm = osm;
        }

        public void executeCommand() {
                osm.visit(new AddVisitor(ds));
        }

        public void undoCommand() {
                osm.visit(new DeleteVisitor(ds));
        }

        public void fillModifiedData(Collection<OsmPrimitive> modified, Collection<OsmPrimitive> deleted, Collection<OsmPrimitive> added) {
                added.add(osm);
        }
}