Business Rule Task is newly added in BPMN 2.0. It provides a mechanism for a process to provide input to a Business Rules Engine and then obtain the output provided by the Business Rules Engine. The example below shows the use of Business Rule task in analyzing the result of surveys. It is expected that a business rule engine will be used in. Providing the most accurate and up to date information about BPMN 2.0 - BPMN.org is your official BPMN resource for Business Process Model and Notation.
PropertyDescriptionIdA unique identifier for this element.NameA name for this element.DocumentationA description of this element.RulesA comma-separated list of rules to include or exclude in thistask.Input variablesA comma-separated list of process variables to be usedas input variables to your rules.ExcludeIf you check Exclude only rules that you have not specified inRules will be executed. If the Exclude is unchecked, only the rules youhave specified in Rules will be executed.Result variableThe name of a process variable in your processdefinition in which to store the result of this task.
The resultvariable is returned as a list of objects. If you do not specify aresult variable name, the default nameorg.activiti.engine.rules.OUTPUT is used.Asynchronous(Advanced) Define this task as asynchronous. This means the task will not be executed as part of the current action of the user, but later. This can be useful if it’s not important to have the task immediately ready.Exclusive(Advanced) Define this task as exclusive. This means that, when there are multiple asynchronous elements of the same process instance, none will be executed at the same time. This is useful to solve race conditions.Execution listenersExecution listeners configured for this instance.
An execution listeners is a piece of logic that is not shown in the diagram and can be used for technical purposes.Multi-Instance typeDetermines if this task is performed multiple times and how. For more information onmulti-instance, see the Developer Guide.
The possible values are: NoneThe task is performed once only. ParallelThe task is performed multiple times, with each instance potentially occurring at the same timeas the others. SequentialThe task is performed multiple times, one instance following on from the previous one.Cardinality (Multi-instance)The number of times the task is to beperformed.Collection (Multi-instance)The name of a process variable which is acollection. For each item in the collection, an instance of this taskwill be created.Element variable (Multi-instance)A process variable name which willcontain the current value of the collection in each task instance.Completion condition (Multi-instance)A multi-instance activitynormally ends when all instances end.
You can specify an expression hereto be evaluated each time an instance ends. If the expression evaluatesto true, all remaining instances are destroyed and the multi-instanceactivity ends.Is for compensationIf this activity is used for compensating the effects of anotheractivity, you can declare it to be a compensation handler. For more information oncompensation handlers see the Developer Guide.
JBPM originates from BPM (Business Process Management) but it has evolved to enable users to pick their own path in business automation.It provides various capabilities that simplify and externalize business logic into reusable assets such as cases, processes, decision tables and more. business processes (BPMN2). case management (BPMN2 and CMMN). decision management (DMN).
business rules (DRL). business optimisation (Solver)jBPM can be used as standalone service or embedded in custom service. It does not mandate any of the frameworks to be used, it can be successfully used in. traditional JEE applications - war/ear deployments. SpringBoot or Thorntail (formerly known as WildFly Swarm) - uberjar deployments. standalone java programsjBPM is open source software, released under the Apache Software License.
It is written in 100% pure Java™, runs on any JVM and is available in the Maven Central repository too. What does jBPM do?A business process allows you to model your business goals by describing the steps that need to be executed to achieve that goal and the order, using a flow chart. This greatly improves the visibility and agility of your business logic, results in higher-level and domain-specific representations that can be understood by business users and is easier to monitor.The core of jBPM is a light-weight, extensible workflow engine written in pure Java that allows you to execute business processes using the latest BPMN 2.0 specification.