XML and XQuery APIs

XQuery for Java (XQJ, JSR 225)

The XQJ API supports XQuery in the same way that the JDBC API supports SQL - it is used to establish connections, issue queries, retrieve results, and configure the query environment. Like JDBC, XQJ is developed under Java Community Process, where it is known as JSR 225.

DataDirect XQuery™ 1.0 supports Early Draft Review 1 of JSR 225.

• XQJ Tutorial — an extensive and accessible tutorial on XQJ. Includes source code for four complete programs.
  
  
• JSR 225 XQuery API for Java™ (XQJ) — the JSR 225 Expert Group's home page, where you can download the specification.

Document Object Model (DOM)

• XQJ Code Listing - Build a DOM tree and query it using XQuery — Shows how to query a DOM using XQJ and XQuery.
  
  
• Returning Results with Java XML APIs: DOM — Shows how to return query results using XQJ and the DOM.
  
  
• W3C DOM — Describes the purpose of the DOM and points to the DOM specifications.

Simple API for XML (SAX)

• Returning Results with Java XML APIs: SAX — Shows how to return query results using XQJ and SAX.
  
  
• About Sax — the SAX project's official home page.

Streaming API for XML (StAX)

• XQJ Code Listing - Execute XQuery and Output result w/ StAX — Shows how to return query results using XQJ and StAX.
  
  
• JSR-173 — The Java Community Process page for StAX.