[jboss-jira] [JBoss JIRA] (DROOLS-5061) DMN strongly typed codegen DMNContext and DMNResult

DMN strongly typed codegen DMNContext and DMNResult --------------------------------------------------- Key: DROOLS-5061 URL: https://issues.redhat.com/browse/DROOLS-5061 Project: Drools Issue Type: Epic Components: dmn engine Reporter: Matteo Mortari Assignee: Matteo Mortari Priority: Major *Motivation*: currently interacting with DMN evaluation is mostly based on dynamic (map-based) data structure to exchange IN/OUT. This is not always fully satisfactory, for instance when interacting over REST or from/back-to BPMN. *Goals*: A codegen facility is required to generate statically code strongly typed for the input/output of a DMN model, considering also the data types defined inside the DMN model as ItemDefinition. *Impacts*: integration with BPMN, integration with Kogito for OpenAPI/Swagger, new APIs for DMN, will need documentation. A codegen facility is required to generate statically code strongly typed for the input/output of a DMN model, considering also the data types defined inside the DMN model as ItemDefinition. Surface and interface common to: * BPMN integration: when invoking DMN from BPMN, the return of the evaluation is a Map and not the domain model * Kogito/OpenAPI/Swagger: when using the codegenerated version, annotation shall explain the swagger API the expected input/output type of the REST request for DMN ** for Quarkus based, use RegisterForReflection annotation ** use MP validation for allowedvalues * DMN Editor: when importing a Java Class in the editor, it shall use the user-supplied Java Class Documentation: * the programmatic use of the generated classes, directly, is DISCOURAGED * if anything, a programmatic use will eventually be stable by making use of the available interfaces in kie-dmn-core