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package org.gvsig.data.commands;

import java.util.List;

import org.gvsig.data.IObservable;

/**

 * Record to stack the commands.

 *

 * @author Vicente Caballero Navarro

 */

public interface ICommandsRecord extends IObservable{

        /**

         *  Removes all of the elements from this Record.

         *

         */

        public void clear();

        /**

         *  Appends the specified command to the undos stack and delete all redos commands.

         */

        public void add( ICommand command);

        /**

         * Deshace, ejecutando el ?ltimo comando de la pila de undos y

         * cambiandolo de esta pila a la de redos.

         */

        public void undo();

        /**

         * Rehacer, ejecuta el ?ltimo comando apilado en redos y

         * lo cambia a la pila de undos.

         */

        public void redo();

        public ICommand getNextUndoCommand();

        public ICommand getNextRedoCommand();

        /**

         * Returns the number of elements in this Record.

         */

        public int size();

        /**

         * Returns the position of pointer in this Record.

         */

        public int getPointer();

        /**

         * Insert and update the position of pointer in this Record.

         */

        public void setPointer(int pos);

        public List getUndoCommands();

        public List getRedoCommands();

        public boolean moreUndoCommands();

        public boolean moreRedoCommands();

        public List getCommandsDeleted();

        public List getCommandsUpdated();

        public List getCommandsInserted();

        public void insert(Object obj);

        public void delete(Object obj);

        public void update(Object obj, Object oldObj);

}