J2EE Application Program Interfaces (APIs)

The following application program interfaces (APIs) are available for J2EE client applications, web servers, and EJB servers:

  • JMS: The Java Message Service is the API for sending and receiving messages via enterprise messaging systems like IBM MQ Series and TIBCO Rendezvous.
  • JAAS: The Java Authentication and Authorization Service is used to authenticate and authorize access controls on users.
  • JAXP: The Java API for XML Parsing provides support for the industry standard SAX and DOM APIs for parsing XML documents, as well as support for XSLT transform engines.
  • JDBC: The JDBC API is for accessing databases from Java using a call-level interface.
  • SQLJ: The SQLJ API is for accessing databases from Java using embedded SQL.
  • JDO: The JDO API is for accessing databases from Java using a transparent persistence interface.

The following APIs are not available for J2EE client applications, but are available for J2EE web servers and EJB servers:

  • JTA: The Java Transactions API is the API for managing and coordinating transactions across heterogeneous systems.
  • JavaMail: This is the API for sending and receiving email.
  • JAF: JavaMail uses the JavaBeans Activation Framework.
  • Connectors: These connect to non-J2EE systems.

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