Notice: This Wiki is now read only and edits are no longer possible. Please see: https://gitlab.eclipse.org/eclipsefdn/helpdesk/-/wikis/Wiki-shutdown-plan for the plan.
Difference between revisions of "EclipseLink/Development/DBWS"
| Line 29: | Line 29: | ||
The XML documents used by operations conform to an XML Schema Definition <tt>.xsd</tt> document auto-generated by the design-time tooling. Alternatively, if no <tt>.xsd</tt> is available, a pre-defined simple XML format (SXF) can be used. | The XML documents used by operations conform to an XML Schema Definition <tt>.xsd</tt> document auto-generated by the design-time tooling. Alternatively, if no <tt>.xsd</tt> is available, a pre-defined simple XML format (SXF) can be used. | ||
| + | |||
| + | == Concepts == | ||
Revision as of 13:55, 21 August 2008
EclipseLink Database Web Services
Document History
| Date | Author | Version Description & Notes |
|---|---|---|
| 080821 | Mike Norman | 1.0 (brought over from TopLink FS 14737 wiki document) |
Overview
The goal of DBWS is to enable simple and efficient access to relational database artifacts via a Web Service. DBWS extends EclipseLink's core capabilities while leveraging existing components (ORM, OXM).
EclipseLink DBWS has two parts: a design-time tooling component and a runtime provider component that takes a service descriptor (along with related deployment artifacts) and realizes it as a JAX-WS 2.0 Web Service. The runtime provider uses EclipseLink to bridge between the database and the XML SOAP Messages used by a Web Service client.
An DBWS service may be comprised of any number of operations of which there are 4 types:
- Insert - inserts into the database persistent entities described by an XML document.
- Update - updates database persistent entities described by an XML document.
- Delete - removes from the database persistent entities described by an XML document.
- Query - retrieves from the database persistent entities described by an XML document.
Selection criteria for Query operations can be specified by:- custom SQL
- Stored Procedures
- TopLink Expressions
- JP-QL
The XML documents used by operations conform to an XML Schema Definition .xsd document auto-generated by the design-time tooling. Alternatively, if no .xsd is available, a pre-defined simple XML format (SXF) can be used.