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Difference between revisions of "EclipseLink/Development/DBWS/JDBCUseCases"
< EclipseLink | Development | DBWS
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* 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> | + | :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. For each table, a <tt>complexType</tt> is generated with each column as an <tt>element</tt> of the <tt>complexType</tt>. |
| + | |||
| + | Column name and type information is retrieved by the <code>DBWSBuilder</code> to generate the XML Schema. The | ||
* Stored Procedures | * Stored Procedures | ||
:blah | :blah | ||
Revision as of 15:08, 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. For each table, a complexType is generated with each column as an element of the complexType.
Column name and type information is retrieved by the DBWSBuilder to generate the XML Schema. The
- Stored Procedures
- blah