C++/Hybrid: In-Memory XML Data Binding

C++/Hybrid is a light-weight, in-memory W3C XML Schema to C++ mapping for mobile and embedded systems. Provided with a schema, it generates C++ classes corresponding to XML Schema types as well as parsing and serialization code. The generated C++ classes represent the data stored in XML as a statically-typed, tree-like object model. C++/Hybrid supports fully in-memory as well as hybrid, partially event-driven, partially in-memory XML processing. The latter approach combines the ease and convenience of the in-memory processing model with the ability to minimize the use of RAM and handle documents that would otherwise not fit into memory. For an introduction to the C++/Hybrid mapping refer to the Hello World Example from the C++/Hybrid Mapping Getting Started Guide.

Features

Light-weight object model as well as parsing and serialization code.
Support for fully in-memory and hybrid, partially in-memory, partially event-driven XML processing.
Support for filtering of XML data during parsing and object model during serialization.
Customizable object model classes as well as parsing and serialization code.
Precise reproduction of XML vocabulary structure and element order in the object model.
Mapping of XML Schema enumerations to C++ enums.
High-performance XML Schema validation in the generated code (configurable, can be used during parsing and/or serialization).
No dynamic memory allocations during validation (non-recursive parsing).
Small memory footprint, including heap and stack usage.
Highly-portable, can be used without STL, RTTI, iostream, C++ exceptions, and with minimal use of C++ templates.
Extensible, high-performance serialization to compact binary formats for storage or over-the-wire transfer (includes built-in support for XDR and ACE CDR, custom formats can be easily added).
Support for parsing and serialization of XML documents with varying root elements.
Support for XML Schema polymorphism (xsi:type and substitution groups).
Support for type-less content: mixed content model, xsd:anyType/xsd:anySimpleType, and xsd:any/xsd:anyAttribute.
Support for default and fixed values.
Customizable XML Schema namespace to C++ namespace mapping.
Support for schema importing, inclusion and chameleon-style inclusion.
Automatic morphing of anonymous types into named ones.
Support for the file-per-schema and file-per-type compilation models.
Built-in support for UTF-8, UTF-16, ISO-8859-1, and US-ASCII encoded XML documents.
Configurable application character encoding (UTF-8 or ISO-8859-1).
Support for custom memory allocators.
Support for schema evolution.

Documentation

Getting Started Guide	An introduction to the C++/Hybrid mapping with examples. Also available in PDF and PostScript.
XSD/e Compiler Manual	The XSD/e compiler command line interface documentation.
XSD/e Wiki Pages	XSD/e community resources, such as FAQs, HOWTOs, etc.

Support

We provide free, best-effort technical support for XSD/e via the xsde-users mailing list. Simply send an email to this mailing list with the description of a bug or a problem that you encountered. Please follow the Posting Guidelines to receive a prompt reply.

We also offer priority support on a commercial basis. Visit our support page for more information.

Resources

XSD/e project page	Source code, build instructions and other information for XSD/e compiler developers.
XML Schema Part 0: Primer	An easily approachable description of the XML Schema facilities. It is oriented towards quickly understanding how to create schemas using the W3C XML Schema language.