IBM BJ0NJML Integration Guide - Page 249

Channel Creations Adapter, Service, and Channel Creations Publish Channels Object Structures Publish Channel Processing Processing Rules Integration Controls Interface Tables Invocation Channels Object Structures Invocation Channel Processing After determining which adapter to use, you can create new channels for the predefined and user-defined adapters. The channels that you create determine how the adapter processes outbound integration messages. You can create publish channels in the Publish Channels application. When you trigger publish channel processing, the integration framework message data moves into the outbound queue. The message data is then transmitted to the external system through the endpoint transport mechanism. The object structure provides the XML message content for publish channel data processing. You can provide a processing class, a user exit class, or an XSL map file, if necessary, to map the XML to the external system XML. You also can implement processing rules or Java classes for customized publish channel processing. The integration framework applies any specified processing rules to objects, before it saves the objects. You can use processing rules to access and retrieve pertinent data from objects that you do not include in the object structure. You can create an integration control when the predefined integration controls do not meet your business needs. You can define integration controls globally and associate them to a publish channel. You can use integration controls to control the behavior of processing logic in a Java class or in a processing rule. Control values are used in publish channel implementations to meet your business requirements. If necessary, you can change the interface table name for the service or channel. You can create an invocation channel in the Invocation Channels application. You can use an object structure to define the data content of the invocation channel message and its associated response. You can map the response message of the external service to the response object structure of the invocation channel. When you map a service to the response object structure, the message responses can be passed to the caller of the external service. The message data is then converted into the system input type by using the invocation channel response processing class. The request and response object structures are the basis for invocation channel processing. The invocation channel can perform a synchronous invocation of an external service and can process the response of that service into the system. You can define a processing class, a user exit class, or an XSL file, to map the object structure XML to the external service XML. You also can apply processing to both the service request configuration and service response configuration. If the response data is not in the XML format of the object structure after the response process runs, a processing error occurs. Integration Component Additions and Modifications 235