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November 2010

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92 discussions

[xwiki-devs] [proposal] New module to handle large binary objects in a generic way.
by Caleb James DeLisle 01 Nov '10

01 Nov '10

In light of the need for better attachment handling, I spent the past few days working on the basic framework for a new module to support large objects. The code can be viewed here: http://svn.xwiki.org/svnroot/xwiki/contrib/sandbox/xwiki-blob/src/main/java… Use case #1: Multiple methods of storing content and the ability to define more. Use case #2: Thread safe locking to prevent concurrent modifications from damaging content. Use case #3: ACID commit/rollback protection. The API user has 2 access points. BinaryObject is a thread safe interface with ACID and option of using OutputStream or InputStream to set and get data. StorageItem is a simplistic interface modeled after a small subset of the methods in java.io.File. If you create a component which implements StorageItem, BinaryObjectProvider will allow you to access a BinaryObject which uses your StorageItem for persistent storage. Example: @Requirement private BinaryObjectProvider provider; private BinaryObject binaryObj; public void initialize() { this.binaryObj = this.provider.get("myImpl"); } "myImpl" is the hint for the StorageItem which you may define. The next step is of course to add versioning support but I think this will provide a solid foundation to build that on. WDYT? Caleb

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[xwiki-devs] rendering breadcrumbs
by [Ricardo Rodriguez] eBioTIC. 01 Nov '10

01 Nov '10

Hi, Following this thread http://markmail.org/thread/jbd62pddnuqvm5ku and after trying the same example in the new XE 2.6-SNAPSHOT.32286, I see that variables set in the body of the document keep being well rendered/printed in the title of the document but not in the breadcrumbs. I would like to know if there is some design reason for printing breadcrumbs before the content of the document or we could expect that in some future version this could be possible. Thanks! Ricardo -- Ricardo Rodríguez CTO eBioTIC. Life Sciences, Data Modeling and Information Management Systems

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