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The "ishanjayawardena/scd_proposal" page has been changed by ishanjayawardena. http://wiki.apache.org/xerces/ishanjayawardena/scd_proposal?action=diff&rev1=18&rev2=19 -------------------------------------------------- || '''Time zone''' || '''UTC+5:30 (Sri Lanka)''' || == Abstract == - Apache Xerces2 is a high-performance, standard complaint processor written in Java for parsing, validating, serializing and manipulating XML documents. At present, it implements a collection of standard APIs for XML processing and its development is in progress to achieve the latest W3C XML Schema 1.1 specification support. The objective of this project is to implement a parser and an evaluator for schema component designators (SCD) that can be used to identify and retrieve XML schema component(s) from the XML schema data model used by Xerces. Schema components that are defined in two W3C recommendations; ''XML Schema Part 1: structures''[[#1 | [1] ]] and ''XML Schema part 2: Data types''[[#2|[2] ]] act as the building blocks of an XML schema document. + Apache Xerces2 is a high-performance, standard complaint processor written in Java for parsing, validating, serializing and manipulating XML documents. The objective of this project is to implement a parser and an evaluator for schema component designators (SCD) that can be used to identify and retrieve XML schema component(s) from the XML schema data model used by Xerces. Schema components that are defined in two W3C recommendations; ''XML Schema Part 1: structures''[[#1 | [1] ]] and ''XML Schema part 2: Data types''[[#2|[2] ]] act as the building blocks of an XML schema document. == Description == ''W3C XML Schema Definition Language (XSD): Component Designators'' is a specification that reached W3C candidate recommendation in January 2010[[#3|[3] ]] with W3C inviting the community to start implementing it[[#4|[4] ]]. The main advantage SCD provides for the programmers is making it easier to navigate an XML schema object model more efficiently by reducing the amount of code that they have to write to retrieve a set of specific schema components. This is achieved by using a path expression similar to an XPath expression. The W3C SCD specification defines two basic types of SCDs[[#5|[5] ]],<<BR>> 1. Absolute SCDs (ASCD): An ASCD identifies a particular schema component; it consists of two parts: a designator for the assembled schema (a schema designator), and a designator for a particular schema component or schema components relative to that assembled schema (a relative schema component designator). Syntactically, an ASCD consists of a URI without a fragment identifier part which identifies the schema and an XPointer fragment identifier which encapsulates a schema component path (SCP)[[#6|[6] ]] to designate a set of components in the context of that schema.<<BR>> --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
