JavaBean Programming
JAVA program specification of reusable components.
JAX (Java API for XML)
(Pronounced like "Jacks") of the JAX, on behalf of a group of Java to support XML technologies to develop the programming interfaces, that is, JAX APIs family. At present the main group of family members includes: JAXM (read method or "Jacks"-M, the follow-up and so on), JAXP, JAXR, JAX-RPC, JAXB, etc..
Currently in the latest Java XML Pack Spring 02 release, include a JAXM v1.0.1 EA2, JAXP v1.2 EA2, JAXR v1.0 EA2, JAX-RPC v1.0 EA2; while JAXB v1.0 is expected in 2002 Q4 formally finalized and incorporated into the future of the Java XML Pack.
JCA Java Connector Architecture
JCA is to integrate J2EE applications with non-related-type structure of the database, using standardized methods to connect, trade and security access to enterprise applications, is an important link in J2EE architecture tool.
JCA can be Java programs to connect to non-Java programs, packaged software, or middleware development. In other words, JCA to provide the above system, native application software interface (API), in order to make a call, specifying its input data, or access has been the output information.
Earlier, before the industry to use more application-specific software written between the connector (adapter, connector), etc. to carry out systems integration work, not only massive and link for each one are usually asking price is not low. After the birth of the JCA, and instead using a standardized infrastructure components based on the link approach to the provision with other systems, including SAP, PeopleSoft, JD Edwards, Oracle and other systems the link between the structure of comparison, the integration of relatively inexpensive. But the premise is that these applications have to be synchronized to support JCA standard.
JCA 1.0 has been built into J2EE 1.3 version. Currently, J2EE 1.4 version is scheduled for the end of 2003 came, JCA 2.0 with the J2EE 1.4 version will be launched in a specific time has not yet been determined. It is learned that, JCA 2.0 and JCA 1.0 will improve the new features, including for the common use terminal interface and XML support.
JCR (Java Content Repository)
Java content repository API program for the draft standard to clarify the content of network storage specifications. February 2002 has been submitted to Java Community Process JCR expert group review.
JCR will break over the last Content Management System (CMS) is the Tate's monopoly of the few technology barriers, with the JCR, the content management system will be more flexibility in the application form so that one can communicate with each other at different levels of the system, the basic platform and does not have to worry about the different products because of brand incompatibility problems.
JCR will be placed on CMS stacking equipment, a new sandwich, caught in the CMS / portal-based applications and related tools such as content stored RDBMS, file system, LDAP servers, XML, or data storage devices. JCR in the API layer of the role of standard SQL in RDBMS in a similar role.
JCR provides an abstraction layer (abstraction layer) mechanism to allow CMS equipment, tools and storage between the operation to be more flexibility and compatibility Nuescheler that is, the so-called "exchange sex" (swappability). In addition, JCR can easily integrate a large number of different functions and applications --- a single repository (repository) can simultaneously service multiple remote users using the API interface; Similarly, to an application from a different storage pulled out of the library is also a snap. |
