DO NOT REPLY TO THIS EMAIL, BUT PLEASE POST YOUR BUG· RELATED COMMENTS THROUGH THE WEB INTERFACE AVAILABLE AT <http://issues.apache.org/bugzilla/show_bug.cgi?id=39451>. ANY REPLY MADE TO THIS MESSAGE WILL NOT BE COLLECTED AND· INSERTED IN THE BUG DATABASE.
http://issues.apache.org/bugzilla/show_bug.cgi?id=39451 Summary: Decouple gvt from bridge so clients can build their own graphics node trees Product: Batik Version: 2.0 Platform: Other OS/Version: other Status: NEW Severity: normal Priority: P2 Component: (RFE) Request For Extension AssignedTo: [email protected] ReportedBy: [EMAIL PROTECTED] I'd like the batik bridge package to function more like a Builder or Abstract Factory pattern from the Design Patterns book so that 3rd parties could take advantage of the existing reader code in bridge to build their own graphics node implementations. (Note that the book also contains a "Bridge" pattern, but I don't think batik.bridge is that kind of bridge. It seems more like an Abstract Factory) The builder/factory would build a tree of graphics nodes of which gvt would be one implementation. To accomplish this I'm trying to create an abstract factory layer between gvt and bridge so new clients can create their own object trees by subclassing the abstract factory classes. I'm not a batik expert, so I'm looking for feedback on whether this project seems doable and/or desireable, and if so, on implementation issues. I've done a skeletal first pass of creating the abstraction. In the attached code I've created a new package, org.apache.batik.bridge.gnode, which includes a set of interfaces that encapsulate the gvt-specific method calls made from the bridge classes. I've refactored some of the bridge classes so they only reference the new gnode interfaces, and I've moved some gvt-dependent bridge classes to a new package, org.apache.batik.bridge.gvt. (that may not be the best place for them, but that's where they are now). Those classes are dependent on gvt. I've also created 'demo.batik.bridge.myvt' which contains factory classes to build trees of objects from package 'demo.myvt'. I've only refactored a small bit of the existing classes. I'm posting this here to see if I can get feedback on what I've done so far. Thanks for your comments. -- Configure bugmail: http://issues.apache.org/bugzilla/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are the assignee for the bug, or are watching the assignee. --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
