Dear Andreas, thanks for your mail. Some answers (even if they may have been addressed to Godmar):
> * Which of the BaseX interfaces do you use: XQJ or just the plain > ClientSession's? In general, the plain client sessions will give you better performance, as they are very light-weight and comply better with the internal BaseX representation. > * Have you found an example to use XQJ for a remote BaseX - Database? Currently, XQJ does only work with local database instances. This may change soon, as Charles Foster will soon offer a 100% compliant and client-/server-based driver for his XQJ implementation for BaseX (see xqj.net for more)! > * Have you found some documentation about the Java-client and > transactional support > (for example to use BaseX even for a 'logging table')? The BaseX documentation includes some basic information on transactions in BaseX [1]. Feel free to ask for more details. > * Are there substantial benefits of the Java-client versus the rest > client for such an application? Again it's mainly about performance: the REST API is a little bit slower due to the HTTP communication overhead and its statelessness (each time, a new session has to be created, the addressed database has to be opened, etc). Depending on the way your queries look like, this may be more or less relevant: if you need to run hundreds or thousands of queries each minute, the overhead could impose a limit at some point; if you have a few number of queries that take considerable time, the overhead should hardly be noticeable. > * Have you already some experiences with the Java-client and BaseX under > high concurrent load? To give an example: In one use cases, BaseX stores converts new JSON Twitter data to XML and stores it in a database appr. 300 times per second. Each hour, a new database is created; a single instance takes 4 GB in average (depending on the time of the day). Feedback from everyone else is welcome; feel free to browse the mailing list archive [2] to find other usage scenarios. Christian [1] http://docs.basex.org/wiki/Transaction_Management [2] http://basex.org/service/mailinglist-search/ _______________________________________________ BaseX-Talk mailing list BaseX-Talk@mailman.uni-konstanz.de https://mailman.uni-konstanz.de/mailman/listinfo/basex-talk
