Hei Matthias, yes - OpenJUMP has at least 2 blackboards: - a persistent blackboard - a blackboard that comes with the context
http://www.mail-archive.com/jump-pilot-devel@lists.sourceforge.net/msg00249.html and http://www.mail-archive.com/jump-pilot-devel@lists.sourceforge.net/msg01278.html however, I don't know if there is any documentation. I guess the easiest way is to search "Blackboard" in the course code. If it is possible, can I ask you to report back on that and maybe create a wiki page in the programming section? stefan Matthias Scholz schrieb: > Hi, > > during my works on the selection styling enhancement, i have a problem > with the Blackboard. > Is it possible, that OJ have more than one Blackboard instance? In the > com.vividsolutions.jump.workbench.ui.plugin.OptionsPlugIn i call the > constructor of my new SelectionStyllingOptionsPanel with > "context.getWorkbenchContext().getWorkbench().getBlackboard()". In the > SelectionStyllingOptionsPanel i use the get/put Methods from the > Blackboard. But if i try to access to this blackboard values in > com.vividsolutions.jump.workbench.ui.renderer.AbstractSelectionRenderer > i get no success. The keys are not available in panel.getBlackboard(). > If i get the Blackboard with > ((WorkbenchFrame)panel.getContext()).getContext().getBlackboard() call, > then i get my previously stored values. > Next problem is that my values are not saved in the workbench-state.xml. > > What is the proper method to get the a correct instance of the > Blackboard or what i doing wrong? > > Matthias > > ------------------------------------------------------------------------------ > ThinkGeek and WIRED's GeekDad team up for the Ultimate > GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the > lucky parental unit. See the prize list and enter to win: > http://p.sf.net/sfu/thinkgeek-promo > _______________________________________________ > Jump-pilot-devel mailing list > Jump-pilot-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/jump-pilot-devel > > ------------------------------------------------------------------------------ ThinkGeek and WIRED's GeekDad team up for the Ultimate GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the lucky parental unit. See the prize list and enter to win: http://p.sf.net/sfu/thinkgeek-promo _______________________________________________ Jump-pilot-devel mailing list Jump-pilot-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/jump-pilot-devel