Difference between revisions of "ClearingP4Preferences"

From Protege Wiki
Jump to: navigation, search
 
(9 intermediate revisions by 2 users not shown)
Line 1: Line 1:
−
Protege 4 uses java preferences to store user preferences and activity.  This can be very nice because when a new version of Protege 4 is installed, it will remember such things as recent ontologies visited, the location of owl viz, rendering preferences and other such stuff.  But sometimes, when Protege is misbehaving, this becomes saved state about Protege that persists when everything else is cleared.  For some operating systems, one can find the location of the java preferences and adjust them there.  For example, on linux machines the java preferences can be found in ~/.java/.userPrefs and on OS X machines the preferences can be found in ~/Library/Preferences/com.apple.java.util.prefs.plist.  On windows machines I believe that the java preferences are found in the registry but I could be wrong.
+
<br /><span style="font-weight:bold; font-size:20px;">Clearing Protege 4 Preferences</span><br /><br />
  
−
However, there is a much nicer portable way of interacting with the java preferences directly. There is a simple but very useful utility calls [http://sourceforge.net/projects/jpui/ Java Preferences User Interface].  It allows one to easily clear or update preferencs and it is pretty clear where the Protege preferences live.
+
Protege 4 uses the [http://java.sun.com/j2se/1.4.2/docs/guide/lang/preferences.html Java Preferences API] to store user preferences and activity.  This allows for persistence of preference data across installations of Protege 4.x, e.g., recently opened ontologies, rendering preferences, location of Graphviz (used by the OWLViz plug-in), etc.  The storage location of these preferences varies according to operating system:
 +
 
 +
* Linux - stored in ~/.java/.userPrefs
 +
* Mac OS X - stored in ~/Library/Preferences/com.apple.java.util.prefs.plist
 +
* Windows - stored in the Windows Registry at HKEY_CURRENT_USER/Software/JavaSoft/Prefs
 +
 
 +
Occasionally, users may need to clear the Java Preferences to fix errors displayed by Protege.  Preferences can either be deleted manually, or via a tool called the [http://sourceforge.net/projects/jpui/ Java Preferences User Interface].  Read more about both options below.
 +
 
 +
 
 +
<strong>Delete preferences manually</strong><br /><br />
 +
To manually delete Protege 4.x preferences, first determine the location that preferences are stored on your operating system.  Locations are listed above in the introductory paragraph. 
 +
 
 +
For Linux and Mac OS X, navigate to the appropriate location and delete the Protege preferences. 
 +
 
 +
For Windows systems, delete the Protege preferences entry from the Windows Registry.  To edit the Windows Registry, click Start | Run... and in the resulting Run dialog type "regedt32" and click OK.  To follow is a screenshot of the Registry Editor with the Protege preferences entry visible:
 +
 
 +
 
 +
[[Image:WindowsRegistryEditor.jpg|none|frame|Microsoft Registry Editor]]
 +
 
 +
 
 +
<strong>Delete preferences using the Java Preferences User Interface</strong><br /><br />
 +
A perhaps nicer option, is to download the [http://sourceforge.net/projects/jpui/ Java Preferences User Interface] tool, which provides a user-friendly interface for updating and/or deleting preferences.  After downloading, type the following on the command line:
 +
 
 +
<pre>
 +
    java -jar jpui-0.4.0.jar
 +
</pre>
 +
 
 +
To follow is a screenshot of the resulting JPUI application with the Protege preferences entry selected:
 +
 
 +
 
 +
[[Image:JavaPreferences-JPUI.png|none|frame|Java Preferences User Interface]]
 +
 
 +
 
 +
To delete the preferences, select PROTEGE_PREFERENCES and choose Node | Delete from the top menu bar.
 +
<br /><br />

Latest revision as of 16:01, January 15, 2010


Clearing Protege 4 Preferences

Protege 4 uses the Java Preferences API to store user preferences and activity. This allows for persistence of preference data across installations of Protege 4.x, e.g., recently opened ontologies, rendering preferences, location of Graphviz (used by the OWLViz plug-in), etc. The storage location of these preferences varies according to operating system:

  • Linux - stored in ~/.java/.userPrefs
  • Mac OS X - stored in ~/Library/Preferences/com.apple.java.util.prefs.plist
  • Windows - stored in the Windows Registry at HKEY_CURRENT_USER/Software/JavaSoft/Prefs

Occasionally, users may need to clear the Java Preferences to fix errors displayed by Protege. Preferences can either be deleted manually, or via a tool called the Java Preferences User Interface. Read more about both options below.


Delete preferences manually

To manually delete Protege 4.x preferences, first determine the location that preferences are stored on your operating system. Locations are listed above in the introductory paragraph.

For Linux and Mac OS X, navigate to the appropriate location and delete the Protege preferences.

For Windows systems, delete the Protege preferences entry from the Windows Registry. To edit the Windows Registry, click Start | Run... and in the resulting Run dialog type "regedt32" and click OK. To follow is a screenshot of the Registry Editor with the Protege preferences entry visible:


Microsoft Registry Editor


Delete preferences using the Java Preferences User Interface

A perhaps nicer option, is to download the Java Preferences User Interface tool, which provides a user-friendly interface for updating and/or deleting preferences. After downloading, type the following on the command line: 

    java -jar jpui-0.4.0.jar

To follow is a screenshot of the resulting JPUI application with the Protege preferences entry selected:


Java Preferences User Interface


To delete the preferences, select PROTEGE_PREFERENCES and choose Node | Delete from the top menu bar.

Retrieved from "https://protegewiki.stanford.edu/index.php?title=ClearingP4Preferences&oldid=6864"