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diff --git a/examples/cxx/hybrid/filter/README b/examples/cxx/hybrid/filter/README new file mode 100644 index 0000000..6ff8f76 --- /dev/null +++ b/examples/cxx/hybrid/filter/README @@ -0,0 +1,71 @@ +This example shows how to filter the XML data during parsing and object +model during serialization in the Embedded C++/Hybrid mapping. Filtering +allows only parts of the XML document to be parsed into the object model +or only parts of the object model to be serialized to XML. + +This example uses the parser and serializer customization mechanisms +provided by the C++/Hybrid mapping. For more information, see Section +4.8, "Customizing the Object Model" and Section 6.1, "Customizing +Parsers and Serializers" in the Embedded C++/Hybrid Mapping Getting +Started Guide. + +The example consists of the following files: + +people.xsd + XML Schema which describes a collection of person records. + +people.xml + Sample XML instance document. + +people.hxx +people.cxx + +people-pskel.hxx +people-pskel.cxx +people-pimpl.hxx +people-pimpl.cxx + +people-pskel.hxx +people-pskel.cxx +people-pimpl.hxx +people-pimpl.cxx + Object model (the first pair of files), parser skeletons (the second + pair), parser implementations (the third pair), serializer skeletons + (the fourth pair), and serializer implementations (the fifth pair). + These files are generated by the XSD/e compiler from people.xsd. The + --generate-parser, --generate-serializer, and --generate-aggregate + options were used to request the generation of the parsing and + serialization code. The --custom-parser option was used to customize + the people_pimpl parser implementation. The --custom-serializer + option was used to customize the people_simpl serializer + implementation. + +people-custom-pimpl.hxx +people-custom-pimpl.cxx + Custom people parser implementation. It uses the implementation + generated by the XSD/e compiler as a base and overrides the person() + callback to filter the records being parsed. + +people-custom-simpl.hxx +people-custom-simpl.cxx + Custom people serializer implementation. It uses the implementation + generated by the XSD/e compiler as a base and overrides the + person_next() callbacks to filter the records being serialized. + +driver.cxx + Driver for the example. It first sets the filter parameters on the + parser object and then calls it to construct the object model from + the input XML file. Only records matching the parser filter end up + in the object model. The driver then prints the content of the object + model to STDERR. Finally, the driver sets the filter parameters on + the serializer object and calls it to serialize the object model back + to XML. Only records matching the serializer filter end up in the + resulting XML. + +To run the example on the sample XML instance document simply execute: + +$ ./driver people.xml + +The example reads from STDIN if input file is not specified: + +$ ./driver <people.xml |