Package diva.gui

Class BasicStoragePolicy

  • All Implemented Interfaces:
    StoragePolicy
    public class BasicStoragePolicy
extends AbstractStoragePolicy
    A StoragePolicy that doesn't really check for correct operation. This is a simple policy that simply closes modified documents and so on. It is recommended only for simple examples and tutorials.
    Version:
    $Id$
    Author:
    John Reekie

    • Constructor Detail

      • BasicStoragePolicy

        public BasicStoragePolicy()

    • Method Detail

      • close

        public boolean close​(Document d)
        Close the document. Forward the request to the document. Do nothing if the document is null. Always return true, unless an I/O exception occurs.

      • open

        public Document open​(Application app)
        Open a new document. Open a file chooser and open the selected file using the application's document factory. Return the new document if one was created, otherwise null. If the file exists, then remember it for the next call to getDirectory.

      • open

        public Document open​(java.io.File file,
                     Application app)
        Open a file and create a new document. Return the new document if one was created, otherwise null. If the file exists, then remember it for the next call to getDirectory.

      • open

        public Document open​(java.net.URL url,
                     Application app)
        Open a URL and create a new document. Return the new document if one was created, otherwise null.

      • save

        public boolean save​(Document d)
        Save the document. Forward the request to the document. Do nothing if the document is null. Always return true, unless an I/O exception occurred.

      • saveAs

        public boolean saveAs​(Document d)
        Save the document to a user-specified location. Open a file chooser and forward the request to the document. Don't change the document's file object. Do nothing if the document is null. Return true if successful, otherwise false.