What Happens When You Create a Phase Activity

When you create a phase activity, the artifacts described in Table 55-1 are created.

Table 55-1 Artifacts Created with a Phase Activity

Artifact	Description
BPEL scope	At the location where the user dropped the phase activity in the BPEL process, a new BPEL scope is created and inserted into the BPEL process. The scope has the name of the phase activity. Within the scope, several standard BPEL activities are created. The most important ones are one invoke activity to an Oracle Mediator and one receive activity from the Oracle Mediator.
Oracle Mediator component	With the SOA composite application of the BPEL process service component, a new Oracle Mediator service component is created. The Oracle Mediator service component is wired to the phase activity of the BPEL component that comprises the level-1 BPEL process where the phase activity has been dropped into the process model. The input and output of the Oracle Mediator service component is defined by the input and output of the phase activity. The Oracle Mediator plan (the processing instructions of the Oracle Mediator service component) is very simple; it delegates creation of the processing instructions to the Oracle Business Rules service component.
Oracle Business Rules component	Within the SOA composite application of the BPEL process service component, a new Oracle Business Rules service component is created and wired to the Oracle Mediator component associated with the phase activity of the BPEL process service component. The Oracle Business Rules service component includes a rule dictionary. The rule dictionary contains metadata for such Oracle Business Rules engine artifacts as fact types, rulesets, rules, decision tables, and similar artifacts. As part of creating the Oracle Business Rules service component, the rule dictionary is preinitialized with the following data: Fact Type Model: The data model used for modeling rules. The rule dictionary is populated with a fact type model that corresponds to the input of the phase activity with some fixed data model that is required as part of the contract between the Oracle Mediator and Oracle Business Rules service components. Ruleset: A container of rules used as a grouping mechanism for rules. A ruleset can be exposed as a service. One ruleset is created within the rule dictionary. Decision Table: From an Oracle Business Rules perspective, a decision table is a collection of rules with the same fact type model elements in the condition and action part of the rules so that the rules can be visualized in a tabular format. The new decision table is created within the ruleset. Decision Service: A decision service is created that exposes the ruleset as a service of the Oracle Business Rules service component. The service interface is used by Oracle Mediator to evaluate the decision table.

Artifact

Description

BPEL scope

At the location where the user dropped the phase activity in the BPEL process, a new BPEL scope is created and inserted into the BPEL process. The scope has the name of the phase activity. Within the scope, several standard BPEL activities are created. The most important ones are one invoke activity to an Oracle Mediator and one receive activity from the Oracle Mediator.

Oracle Mediator component

With the SOA composite application of the BPEL process service component, a new Oracle Mediator service component is created. The Oracle Mediator service component is wired to the phase activity of the BPEL component that comprises the level-1 BPEL process where the phase activity has been dropped into the process model. The input and output of the Oracle Mediator service component is defined by the input and output of the phase activity.

The Oracle Mediator plan (the processing instructions of the Oracle Mediator service component) is very simple; it delegates creation of the processing instructions to the Oracle Business Rules service component.

Oracle Business Rules component

Within the SOA composite application of the BPEL process service component, a new Oracle Business Rules service component is created and wired to the Oracle Mediator component associated with the phase activity of the BPEL process service component. The Oracle Business Rules service component includes a rule dictionary. The rule dictionary contains metadata for such Oracle Business Rules engine artifacts as fact types, rulesets, rules, decision tables, and similar artifacts. As part of creating the Oracle Business Rules service component, the rule dictionary is preinitialized with the following data:

Fact Type Model: The data model used for modeling rules. The rule dictionary is populated with a fact type model that corresponds to the input of the phase activity with some fixed data model that is required as part of the contract between the Oracle Mediator and Oracle Business Rules service components.
Ruleset: A container of rules used as a grouping mechanism for rules. A ruleset can be exposed as a service. One ruleset is created within the rule dictionary.
Decision Table: From an Oracle Business Rules perspective, a decision table is a collection of rules with the same fact type model elements in the condition and action part of the rules so that the rules can be visualized in a tabular format. The new decision table is created within the ruleset.
Decision Service: A decision service is created that exposes the ruleset as a service of the Oracle Business Rules service component. The service interface is used by Oracle Mediator to evaluate the decision table.