the world of Java and J2EE Application Servers, MitemView
is compatible in five key areas: support for the
Java programming language, Enterprise Java Beans (EJB),
Java Connector Architecture (JCA), Java Server Pages
(JSP) and Java Messaging System (JMS).
is an integration framework that can be customized
by using the Java programming language. By customized,
we mean that the application specific business logic
and integration control logic is programmed in Java.
The resulting Java application inter-operates with the
MitemView framework, at runtime, via an event-driven
interface. MitemView works with Java environments
that support JDK 1.1 or later.
has been deployed in conjunction with every major application
server on the market including:
- IBM WebSphere
- BEA WebLogic
- Oracle Application Server
- Macromedia JRun
- Novell exteNd (formerly SilverStream)
NXTier (pronounced next-tier) technology enables a collaborative
relationship to be formed between MitemView and a Java
application running on any J2EE server.
A NXTier interface consists of an NXTier delegate that
uses an NXTier runtime to form a collaboration with
a MitemView Server that has NXTier Services enabled.
Delegates are lightweight software components that install
on the J2EE server. They are lightweight, to avoid placing
load on the server, and expose a simple interface that
is easy to configure and maintain. Delegates use a synchronous,
model to communicate between the J2EE server and a particular
instance of MitemView. Because Delegates follow a synchronous
model, they are designed for interfacing with multi-threaded
J2EE server sends a request to the MitemView
Integration Server. A NXTier Delegate is installed on
the J2EE server, which can be running on UNIX, Windows,
OS/390 or any other platform. In this example, from
a hospital information system, a Data General screen-based
application and HL7 transactions are being orchestrated
MITEM has had customers that required MitemView
services to be remotely accessible from Enterprise
Java Beans (EJBs) running on an application server.
More recently, the application server vendors have begun
to add their own meta-data driven integration layers
and actively encourage all external calls to be passed
down through this layer. The Java Connector Architecture
(JCA) and Oracle's OAI are two such examples. So while
MITEM will continue to support native EJB interfaces,
the trend is toward interfacing at the integration layer
addition to the NXTier technology, MITEM is committed
to building adapters that are compatible with the Java
Connector Architecture (JCA). The JCA standard is somewhat
of a moving target and MITEM stays current with industry
has multiple customers using Java Server Pages (JSP)
to invoke services on their MitemView integration
server. The underlying technology for this interfacing
solution is MITEM's NXTier Services.
can support the Java Message Service (JMS) as the messaging
vendors for which MITEM has adapters - such as IBM and
TIBCO - add the JMS API to their product offering. This
support will include Message-Driven Beans (MDB).