By Mauricio Salatino
This publication is a whole developer's advisor to operating with jBPM in a J2EE firm surroundings. it really is full of examples of implementations that might give you all of the adventure wanted in real-life implementations. wide discussions approximately how the framework is applied internally will give a contribution to making a powerful wisdom of while and the way your tasks will contain this framework. This booklet is especially specified at Java builders and Java architects who should have a deep knowing of ways frameworks behave in real-life implementations. The ebook assumes that you simply be aware of the Java Language good and in addition understand a few standard frameworks equivalent to Hibernate and Log4J. you need to additionally recognize the fundamentals of relational databases and the Eclipse IDE. a quick advent to Maven2 is incorporated during this e-book yet additional adventure could be wanted for extra complicated usages.
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Extra info for jBPM Developer Guide
Business logic If we are careful developers, here we are going to have all of the code related to a logical business processes method. In the case of the example, here we will have all the stages represented in some kind of state machine in the best cases. If we don't have a kind of state machine, we will have a lot of if and switch statements distributed in our code that will represent each stage in the process. For example, if we have the same application for all the branches of a company, this application will need to behave differently for the main office's employee than for the 'just finished' warehouse employee.
The use of a Map to store each transition with a name associated to it. The idea here is to use the transitions based on names and not objects. In other words, we can choose which transition to take using just a String. • The addTransition(String, Node) method that wrap the put method of the Map and creates a new instance of the Transition class. label = label; } ... (Getters and Setters for all the properties) } Another very simple class. As you can see, here we have two Node class properties that allow us to define the direction of the transition.
Most of the workflows are related to documents that are moved through business units inside the company, where these business units modify these documents, to achieve some business goal. Currently, in many companies the terms BPM and workflow are used as synonyms, but in this book we are trying to make the distinction between them clear. Here when we talk about workflows we refer to some steps inside them and specific application domains. BPM is like a more generic and extended set of tools, which let us represent situation that integrate heterogeneous systems and people's activities, with a fine-grained control.
jBPM Developer Guide by Mauricio Salatino