BaseX-Talk February 2010

basex-talk@mailman.uni-konstanz.de

21 participants
19 discussions

Re: [basex-talk] Well done!
by Christian Grün 18 Mar '10

18 Mar '10

Hi Erik, all of your suggestions are more than welcome – this is why I posted your answer back to the mailing list. I invite all of you to give personal feedback! > A few questions for you about basex and plans... > 1) Can a database store files other than xml? xqy/xql, images, js, css, etc? Our storage is currently limited to well-formed XML documents. > 2) Any plans to add collections or may basex does and I've overlooked it? Yes, BaseX supports collections – as long as they are flat. Databases can store multiple single documents, which can be accessed e.g. by the XQuery collection() function. See also Section 4.4 in http://basex.org/faq. > 3) ReST interface: There are two approaches, both have their benefits and I would like to see both available: > a) The rest interface allows manipulating db resources: dbs, collections, files, users, permissions, etc. (The eXist db does this.) > -The main advantage with this is an API easy to integrate into many environments > b) The rest interface allows requests to be rewritten to a delegate xquery file to handle processing the http methods. (Some other db's provide this.) > -This allows building complete applications within a database. > -Would like to see this as the base approach with (a) as an internal implementation of (b) > What are your thoughts? Interesting ideas.. Some of our current interface features are be inspired by eXist. While GET and POST can be used to send XQuery/Update requests, PUT and DELETE will allow to modify database instances. Here is a simple example how a GET request could look like: http://localhost:8080/rest/db/factbook?query=//country Additionally, we will allow to send BaseX database commands via GET and POST.. http://localhost:8080/rest/db/factbook?command=optimize This way, user management can be handled via REST as well. I'm not sure how users are modified in eXist via REST? Which other XML/REST implementations have you worked with? > 4) Any plans for webdav? This makes moving files in and out of the db easy for non-technical users. I've briefly looked at doing this with milton, apache jackrabbit, and from scratch. > 5) What do you think about using OSGI to enable plugging in db services? Bundles would be something like dbServer (the core service), tcpServer, restAdminServer, restServer, webdavServer, webAdmin, cliAdmin, monitorServer clusterServer, etc. This keeps the dbServer core code clean and small, yet allows other services to be developed and evolve independently. It also allows spinning up multiple instances of a server. For example, I could spin up multiple restServers or tcpServers on different ports to segment applications, or multiple webdav servers to partition content management per user/group rights. > 6) What do you think about moving to github? Looking for ways to grow basex community more quickly. Good suggestions.. Let's see what everyone thinks about it! > Hope you don't mind me jumping in. I see a great product whose continued and expanded development is important to this industry. You are welcome, Christian ___________________________ Christian Gruen Universitaet Konstanz Department of Computer & Information Science D-78457 Konstanz, Germany Tel: +49 (0)7531/88-4449, Fax: +49 (0)7531/88-3577 http://www.inf.uni-konstanz.de/~gruen

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Program updated - Promotion available (new) - Download3k.com
by webmaster＠download3k.com 27 Feb '10

27 Feb '10

1 0

Stored procedures (XRPC) support
by Harmen Wessels 24 Feb '10

24 Feb '10

I am currently working on a research project on native XML databases and I am trying some stuff on BaseX and I must complement on the nice GUI supplied with the database. After testing some stuff I now have a question: is there support for stored procedures in some sort for BaseX? I would like to query the database using a XQuery which is stores in the database and can be called using some parameters. Thanks. Regards, Harmen Wessels.

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GUI client error when adding doc without chopping whitespace
by Tobin Edwards 23 Feb '10

23 Feb '10

I'm seeing a null pointer exception in the GUI client when adding an XML file to an empty database that uses an internal parser and does NOT chop whitespace. Using the command-line tool to add the same file works fine. Note, I'm running the database in a server (as opposed to standalone). Is this a known issue? Any help would be appreciated. Here's the error I get when I add the file using the GUI client: Error: Possible bug? Feedback is welcome: info(a)basex.org BaseX 6.0: java.lang.NullPointerException org.basex.index.Names.index(Names.java:81) org.basex.build.Builder.addText(Builder.java:384) org.basex.build.Builder.text(Builder.java:192) org.basex.build.xml.XMLParser.parse(XMLParser.java:46) org.basex.build.xml.DirParser.parse(DirParser.java:68) org.basex.build.xml.DirParser.parse(DirParser.java:48) org.basex.build.Builder.parse(Builder.java:87) org.basex.build.MemBuilder.build(MemBuilder.java:36) org.basex.core.proc.Add.exec(Add.java:42) org.basex.core.Proc.exec(Proc.java:108) org.basex.gui.GUI.exec(GUI.java:428) org.basex.gui.GUI.execute(GUI.java:336) org.basex.gui.GUI$3.actionPerformed(GUI.java:236) javax.swing.AbstractButton.fireActionPerformed(Unknown Source) javax.swing.AbstractButton$Handler.actionPerformed(Unknown Source) javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source) javax.swing.DefaultButtonModel.setPressed(Unknown Source) javax.swing.plaf.basic.BasicButtonListener.mouseReleased(Unknown Source) java.awt.AWTEventMulticaster.mouseReleased(Unknown Source) java.awt.AWTEventMulticaster.mouseReleased(Unknown Source) java.awt.Component.processMouseEvent(Unknown Source) javax.swing.JComponent.processMouseEvent(Unknown Source) java.awt.Component.processEvent(Unknown Source) java.awt.Container.processEvent(Unknown Source) java.awt.Component.dispatchEventImpl(Unknown Source) java.awt.Container.dispatchEventImpl(Unknown Source) java.awt.Component.dispatchEvent(Unknown Source) java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source) java.awt.LightweightDispatcher.processMouseEvent(Unknown Source) java.awt.LightweightDispatcher.dispatchEvent(Unknown Source) java.awt.Container.dispatchEventImpl(Unknown Source) java.awt.Window.dispatchEventImpl(Unknown Source) java.awt.Component.dispatchEvent(Unknown Source) java.awt.EventQueue.dispatchEvent(Unknown Source) java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source) java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source) java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source) java.awt.EventDispatchThread.pumpEvents(Unknown Source) java.awt.EventDispatchThread.pumpEvents(Unknown Source) java.awt.EventDispatchThread.run(Unknown Source) Thanks, Tobin

2 1

euroDownload.com: Golden award for BaseX
by supp＠eurodownload.com 23 Feb '10

23 Feb '10

Reply-To: supp(a)eurodownload.com User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv:1.9.1.7) Gecko/20100111 Thunderbird/3.0.1 MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Message-Id: <20100223100804.2F8CB1033FFE(a)xeon.euronetix.com> Date: Tue, 23 Feb 2010 04:08:04 -0600 (CST) Hello, Your product "BaseX" has been tested by the euroDownload.com labs and we have granted it by our best - GOLDEN award ! To let your users know about this Golden award, you may display this award on your website. You can do it easy by adding of the following HTML code to your web: <a href="http://www.eurodownload.com/download-software/155774/BaseX.html" target="_blank"><img src="http://www.eurodownload.com/images/rating5.png" alt="BaseX - Golden award" border="0"></a> Best Regards, euroDownload.com team http://www.eurodownload.com supp(a)eurodownload.com ---------------------------------------------------------------------- About us: EuroDownload.com is one of the oldest download sites (found in 2002). In our archive has been listed more than 78000 software titles. ----------------------------------------------------------------------

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DRIVER
by ispanico87_nf＠libero.it 22 Feb '10

22 Feb '10

Hi, static final String DRIVER ="org.basex.api.xqj.BXQDataSource"; Why use the class org.basex.api.xqj.BXQDataSource??? In JDBC driver is associated with a database. Why in XQJ I use a class??? Sorry for my English...i'm Italian.

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Preserving CDATA sections
by Nageswararao Yenuganti 17 Feb '10

17 Feb '10

2 1

Full-text speed
by Thomas Goossens 16 Feb '10

16 Feb '10

Hello, I am trying XQuery Full-text on BaseX and I am a bit surprised by the full-text query speed: I have loaded the Shakespeare plays into a BaseX database, and created a full-text index. So far so good. Then I a tried a query like: //LINE[ . contains text "romeo juliet" all words] (4 hits) It takes about 1200 ms. I expected less than 100 ms. For example I tried Qizx and it takes less than 20 ms. Even eXist (old version, with a different syntax) was taking around 200 ms. I tried dropping the full-text index: that makes no difference! So clearly the FT index is not used. What should I do ? Thanks

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How to Connect to BaseX in Java
by paulomgj＠gmail.com 14 Feb '10

14 Feb '10

Hi, I would like to know how to connect to BaseX using XQJ. I'm searching for the connection string (where i can put the login, password, port, etc.) to create a XQDataSource but I'm not finding it. Thansk in advance

2 1

Querying the Wikipedia XML dump
by Jason Priem 13 Feb '10

13 Feb '10

Hi, I set up a database in BaseX with the Wikipedia articles dump (all 25 GB of it). I'm able to access individual articles though the treemap display (by clicking on them), but I get null responses for every xpath query run, even really basic stuff like "//title." I'm sorry if this is a very obvious question; I'm a beginner to XML databases. Any ideas as the problem, or what to do to find out more? Thanks! j -- Jason Priem UNC Royster Fellow School of Library and Information Science University of Carolina at Chapel Hill

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BaseX-Talk February 2010