Changes between Version 1 and Version 2 of codesprint/201103


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Timestamp:
Mar 21, 2011, 4:24:12 AM (13 years ago)
Author:
heikki
Comment:

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  • codesprint/201103

    v1 v2  
    11 * Architecture discussion
     2 * [heikki] XML binding:
     3  In the ebRIM branch, and in the Nordic Security code (not public yet), JiBX is used for Java <--> XML binding. It is highly useful to have such a binding, as it can be invoked automatically on Web Service communications and leads to a much cleaner dealing with objects in Java than when DOM/JDOM is used. One disadvantage of JiBX is that this binding needs to be written manually, which is a bit of a pain in the neck. Another disadvantage is that it is not a Java standard. JAXB on the other hand *is* the standard and comes with a binding-generator that takes a schema and produces the bound Java classes.
     4
     5However, I've tried running it on the ISO19139 schema and it does not work :
     6
     7 {{{
     8
     9~/jaxb-ri-20110115/bin$ xjc -p testpackagename ~/source/ogc/ogc-schemas/trunk/iso/19139/20070417/schema/src/main/resources/iso/19139/20070417/gmd/gmd.xsd
     10
     11The result is :
     12
     13parsing a schema...
     14[ERROR] Property "Rows" is already defined. Use <jaxb:property> to resolve this conflict.
     15 line 648 of file:
     16~/source/ogc/ogc-schemas/trunk/iso/19139/20070417/schema/src/main/resources/gml/3.2.1/geometryPrimitives.xsd
     17
     18[ERROR] The following location is relevant to the above error
     19 line 680 of file:
     20~/source/ogc/ogc-schemas/trunk/iso/19139/20070417/schema/src/main/resources/gml/3.2.1/geometryPrimitives.xsd
     21
     22Failed to parse a schema.
     23
     24 }}}
     25
     26This is because of peculiarities in the schemas that we cannot control. I have asked !users@ogc.java.net if it is possible to do this at all, but I'd be surprised.
     27
     28Question remains: if we cannot use JAXB to generate a binding for ISO19139, is it still desired to use JAXB for situations where we *can* use it, instead of using JiBX ?
     29
     30
     31
    232 * DB / Mckoi to H2 or HSQL or derby ?
    333  * driver