Node and parser factory behavior

The node factory and the parser factory assume roles in declaring a message flow node to the integration node or defining a parser.

Each loadable implementation library (LIL) has one node factory, or one parser factory, or has both. A node factory can identify many message flow nodes, and a parser factory can identify many parsers.

When the integration node loads the LIL, it calls the following functions:

• bipGetMessageflowNodeFactory

  After the operating system has loaded and initialized the LIL, the integration node calls initialization function bipGetMessageflowNodeFactory. The bipGetMessageflowNodeFactory function calls the utility function cniCreateNodeFactory, which passes back a factory name (or group name) for all the message flow nodes that your LIL supports.

• bipgetparserfactory

  After the operating system has loaded and inoitialized the LIL, the integration node calls initialization function bipgetparserfactory. The bipgetparserfactory function defines the name of the factory that the user-defined parser supports, and the classes of objects, or shared object, that the factory supports. The initialization function bipgetparserfactory calls the utility function cpiCreateParserFactory, which passes back a factory name (or group name) for all the parsers that your LIL supports.

Before the node factory is returned, the integration node calls the following functions:

1. cniCreateNodeFactory

   This function creates a single instance of the node factory in the integration node.

2. cndDefineNodeClass

   This function defines the name of a node class that a node factory supports, and identifies the nodes that the node factory can create.

Before the parser factory is returned, the integration node calls the following functions:

1. cpiCreateParserFactory

   This function creates a single instance of the named parser factory in the integration node.

2. cpiDefineParserClass

   This function defines the name of a parser class that a parser factory supports, and identifies the parsers that the factory can create.