uci.gef
Class CmdSavePGML

java.lang.Object
  |
  +--javax.swing.AbstractAction
        |
        +--uci.gef.Cmd
              |
              +--uci.gef.CmdSavePGML

public class CmdSavePGML

extends Cmd

implements FilenameFilter

Cmd to save the current document to a binary file using Sun's ObjectSerialization library. The written file contains the Editor object and all objects reachable through instance variables of the Editor (e.g., the selections, the views, the contents of the views, the net-level description of the graph, etc.). UI objects such as Windows, Frames, Panels, and Images are not stored because I have marked those instance variables as transient in the source code.

One advantage of this approach to saving and loading is that developers using GEF can add subclasses (e.g., to NetNode) which introduce new instance variables, and those will be saved and loaded without the developers having to special load and save methods. However, make sure that you do not point to any AWT objects unless those instance variables are transient because those cannot be saved.

Needs-More-Work: the files produced by a save are not really good for anything other than reloading into this tool, or another Java program that uses ObjectSerialization. At this time GEF provides no support for saving or loading textual representations of documents that could be used in other tools.

See Also:

CmdOpen, Serialized Form

Field Summary

protected static OCLExpander	_expander
protected static Hashtable	_templates

Fields inherited from class uci.gef.Cmd

_args, HAS_ICON, NO_ICON

Fields inherited from class javax.swing.AbstractAction

changeSupport, enabled

Constructor Summary

CmdSavePGML()

CmdSavePGML(String filterPattern)
Only allow the user to select files that match the fiven filename pattern.

Method Summary

boolean	accept(File dir, String name) Only let the user select files that match the filter.
void	doIt()
void	undoIt()

Methods inherited from class uci.gef.Cmd

about, actionPerformed, cmdAtIndex, containsArg, getArg, getArg, getName, register, registeredCmds, setArg, setName, shouldBeEnabled, updateEnabled

Methods inherited from class javax.swing.AbstractAction

addPropertyChangeListener, clone, firePropertyChange, getValue, isEnabled, putValue, removePropertyChangeListener, setEnabled

Methods inherited from class java.lang.Object

equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

_templates

protected static Hashtable _templates

_expander

protected static OCLExpander _expander

Constructor Detail

CmdSavePGML

public CmdSavePGML()

CmdSavePGML

public CmdSavePGML(String filterPattern)

Only allow the user to select files that match the fiven filename pattern. Needs-More-Work: this is not used yet.

Method Detail

doIt

public void doIt()

Overrides:

doIt in class Cmd

accept

public boolean accept(File dir,
                      String name)

Only let the user select files that match the filter. This does not seem to be called under JDK 1.0.2 on solaris. I have not finished this method, it currently accepts all filenames.

Needs-More-Work: the source code for this method is duplicated in CmdOpen#accept.

Specified by:

accept in interface FilenameFilter

undoIt

public void undoIt()

Overrides:

undoIt in class Cmd