Components of the Host Access Toolkit
The following APIs make up the Host Access Toolkit:
- The Host Access Class Library (HACL) provides a core set of classes and methods that allow the development of platform-independent applications that can access host information without the need for a graphical display. HACL represents an object-oriented abstraction of a host connection that includes reading and writing the host presentation space, enumerating the fields in the presentation space, reading the operator information area (OIA) for status information, transferring files, and performing asynchronous notification of significant events. For more information about HACL, see the following:
- The Host Access Beans provide emulator functions as a set of JavaBeans components that developers can use
to rapidly develop custom applications that deliver the specific functions
they want. For more information about Host Access Beans, see the following:
- Introducing the Host Access Beans
- The Host Access Beans for Java reference
The Host On-Demand J2EE Connector is a Java programming
interface that conforms to the J2EE Connector Specification, Version
1.0 from Sun Microsystems. Host On-Demand J2EE Connector provides
a set of Resource Adapters which communicate to 3270, 5250, CICS,
and VT hosts. Users can write applications or servlets by using the
APIs provided by Host On-Demand J2EE Connector in WebSphere Integration
Developer. These applications and servlets are then deployed to an
application server that supports the J2EE Connector architecture,
such as IBM Application Server. For more information on the J2EE Connector
implementation in Host On-Demand, see the following:
