DMN Model API
Repository Service
It is also possible to access the DMN model instance by the decision definition id using the Repository Service, as the following incomplete test sample code shows:
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public void testRepositoryService() {
String decisionDefinitionId = repositoryService.createDecisionDefinitionQuery()
.decisionDefinitionKey(DECISION_KEY).singleResult().getId();
DmnModelInstance modelInstance = repositoryService
.getDmnModelInstance(decisionDefinitionId);
}