Notice: this Wiki will be going read only early in 2024 and edits will no longer be possible. Please see: https://gitlab.eclipse.org/eclipsefdn/helpdesk/-/wikis/Wiki-shutdown-plan for the plan.
Difference between revisions of "EclipseLink/Development/DBWS/JDBCUseCases"
< EclipseLink | Development | DBWS
(→Supported Use Cases for non-Oracle Platforms) |
(→Supported Use Cases for non-Oracle Platforms) |
||
| Line 3: | Line 3: | ||
* raw SQL | * raw SQL | ||
| − | :When a DBWS | + | :When a DBWS operation is invoked by a Web service, the selection criteria for a Query can be specified as a SQL <tt>SELECT</tt> statement. This means that DBWS does not know what information will be returned until the statement has been executed and the <code>java.sql.ResultSet</code> returned. In these cases, a [[EclipseLink/Development/DBWS/FunctionalSpecification#SXF_.28Simple_XML_Format.29|simplified XML format]] is used and the types returned must be simple scalar types (Number, String, Float, etc.) |
* Tables | * Tables | ||
| − | : | + | :When a DBWS operation is invoked by a Web service, the returned table row (or row<b>s</b> plural) is transformed into XML that conforms to an XML Schema. Column name and type information retrieved by the <code>DBWSBuilder</code> is used to generate the XML Schema |
| + | |||
* Stored Procedures | * Stored Procedures | ||
:blah | :blah | ||
Revision as of 15:05, 17 December 2009
Supported Use Cases for non-Oracle Platforms
The design-time utility DBWSBuilder uses JDBC meta-data APIs (java.sql.DatabaseMetaData) to extract information about tables (column names and types) and Stored Procedures (argument names and types) which is then translated into information required by DBWS (EclipseLink Project files, XML Schemas, etc) so that at runtime a Web service client can invoke an operation and receive a response.
- raw SQL
- When a DBWS operation is invoked by a Web service, the selection criteria for a Query can be specified as a SQL SELECT statement. This means that DBWS does not know what information will be returned until the statement has been executed and the
java.sql.ResultSetreturned. In these cases, a simplified XML format is used and the types returned must be simple scalar types (Number, String, Float, etc.)
- Tables
- When a DBWS operation is invoked by a Web service, the returned table row (or rows plural) is transformed into XML that conforms to an XML Schema. Column name and type information retrieved by the
DBWSBuilderis used to generate the XML Schema
- Stored Procedures
- blah