Chapter 2. New features

This section highlights new features in Red Hat Decision Manager 7.9.

2.1. Business Central

2.1.1. Support for multiple diagrams in DMN models

For complex DMN models, you can now use the DMN designer in Business Central to design multiple DMN decision requirements diagrams (DRDs) that represent parts of the overall decision requirements graph (DRG) for a DMN decision model. This improvement enables you to better organize DMN decision models with many decision requirements by dividing the model into smaller nested DRDs.

For more information about creating DMN models with multiple diagrams, see Designing a decision service using DMN models.

2.2. Decision engine

2.2.1. Descope traits in decision engine

The traits functionality and its specific implementation code is moved to an individual module named drools-traits. To use traits, you can import the drools-traits module to Maven. The existing implementation is not supported in the executable rule model.

2.2.2. New drools-metric module for decision engine performance analysis

A new module named drools-metric is added, which can assist in the performance analysis of the decision engine.

For more information, see Designing a decision service using DRL rules.

2.3. Red Hat Business Optimizer

2.3.1. Using Red Hat Business Optimizer with Spring Boot

You can follow the example in Creating a school timetable using Red Hat Business Optimizer with Spring Boot to create a school timetable.

2.3.2. Employee Rostering rotation pattern redesign

The rotation pattern on the Employee Rostering Rotation window has been redesigned for ease of use. For more information, see Running and modifying the employee rostering starter application for Red Hat Business Optimizer using an IDE.

2.4. Spring Boot

2.4.1. Self-contained Red Hat Decision Manager Spring Boot JAR file

You can create a self-contained Red Hat Decision Manager Spring Boot JAR file that contains multiple versions of the same KJAR file.

For more information, see Creating Red Hat Decision Manager business applications with Spring Boot.

2.5. Red Hat OpenShift Container Platform

2.5.1. Support for Red Hat OpenShift Container Platform version 4.6

Red Hat Decision Manager now supports Red Hat OpenShift Container Platform version 4.6. In order to support this version, necessary changes in the operator bundle format are made. Red Hat OpenShift Container Platform version 4.6 provides an extended update support. For more information, see Red Hat OpenShift Extended Update Support (EUS) Overview.

Important

Red Hat Decision Manager 7.9 is supported only on Red Hat OpenShift Container Platform version 3.11 and Red Hat OpenShift Container Platform version 4.6 EUS. Due to the internal changes of the operator and API version, Red Hat OpenShift Container Platform version 4.5 is not supported and this makes an exception to the general support policy for the Red Hat Middleware products. For more information, see Support of Red Hat Middleware products and components on Red Hat OpenShift.

2.5.2. Support for LDAP failover

When using LDAP authentication, Red Hat Decision Manager on Red Hat OpenShift Container Platform now supports failover to a different LDAP server if a server becomes unavailable.

For more information, see Deploying a Red Hat Decision Manager environment on Red Hat OpenShift Container Platform using Operators and Deploying a Red Hat Decision Manager environment on Red Hat OpenShift Container Platform using templates.

2.5.3. Integration with new versions of products

Red Hat Decision Manager on Red Hat OpenShift Container Platform now supports integration with the following new product versions:

  • Red Hat AMQ 7.7
  • Red Hat AMQ Broker 7.7
  • Red Hat Single Sign-On 7.4.1
  • Red Hat Data Grid 7.3

2.5.4. Support for deploying an unmanaged KIE Server on Red Hat OpenShift Container Platform using the operator

You can now deploy Red Hat Decision Manager on Red Hat OpenShift Container Platform using the operator with a KIE Server that is not managed by Business Central monitoring.

For more information, see Deploying a Red Hat Decision Manager environment on Red Hat OpenShift Container Platform using Operators.