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To generate a Sequence Diagram containing code of an operation: 1.Click into the empty space of the Sequence Diagram, that contains code of an operation. 2.Select Generate Code from Sequence diagram. This command starts the forward-engineering process at this point. The Sequence Diagram from Java Source Wizard allows for visualizing Java method implementation within UML Sequence diagrams.At this time, the UML Sequence diagram cannot show Java code with 100% accuracy; however, MagicDraw provides a mechanism for generating a diagram that reflects the essence of Java method content.

'Java is a platform independent, object oriented, general purpose programming language designed to support software distribution and used to create interactive applications. Java developers can visualize the structure and behavior of Java systems using standard UML diagrams in Enterprise Architect.'
Generate sequence diagram from java code visual paradigm

With Enterprise Architect you can:

  • Use UML class diagrams to generate Java class definitions
  • Reverse engineer Java into UML class diagrams
  • Synchronize changes made in a Java class definition into the corresponding UML class
  • Synchronize changes made in a UML class into the corresponding Java class definition
  • Automatically generate UML sequence diagrams from Java
  • Document your Java code in RTF and HTML format
  • Import and reverse-engineer Java Binaries

Java UML generated class diagrams can be used in Enterprise Architect to create sequence diagrams to analyze run-time behavior of the classes and their methods. Enterprise Architect will open the source file to any attribute, operation or class for the selected Java diagram.


Java UML Rich-text Format Report

Java Relationship Matrix View

Enterprise Architect allows Java Binaries (JAR files) to be reverse engineered, creating the required model packages and diagrams during the import process.

Developers can model UML classes including attributes and operations, as well as dependencies to other classes. Enterprise Architect can then generate the class into a new file which contains the class declarations and attributes, the import statements required, the declarations required for the methods created, and javadoc comments from the model notes.

Enterprise Architect supports integration with unit testing tools to make it easier to develop quality software. EA helps create test classes with JUnit transformations, which create a class with test methods for all public methods of an existing Java class. The resulting class can then be generated and the tests filled out and run by JUnit.

Sparx Systems also assists with Java model integration into Eclipse with their MDG Integration for Eclipse plug-in. MDG Integration assists Java developers to gain direct access to their UML models in Eclipse, allowing Java UML developers to view their diagrams inside their IDE, navigate between Enterprise Architect elements and corresponding source code elements, and aids collaboration between team members with the built-in discussion forum.


This feature is available only in the Enterprise edition.

The Sequence Diagram from Java Source Wizard allows for visualizing Java method implementation within UML Sequence diagrams. At this time, the UML Sequence diagram cannot show Java code with 100% accuracy; however, MagicDraw provides a mechanism for generating a diagram that reflects the essence of Java method content.
If you want to create a sequence diagram from the Java source, you must first reverse the Java source code to a model.

You can also create a model corresponding to your Java code structure manually.

Ensure the model you use to create a sequence diagram fully corresponds the Java source code you want to represent in the diagram.

One sequence diagram can represent one method in a Java code. Classes are represented as lifelines, and method calls are represented as messages in the diagram. The sequence diagram can also be used to visualize dependencies for all classes used in this method.


To create a sequence diagram using the Sequence Diagram from Java Source Wizard

Uml Sequence Diagram From Java Code

  1. Open the Sequence Diagram from Java Source Wizard by doing one of the following:
    • On the Diagrams menu, select Diagram Wizards > Sequence Diagram from Java Source Wizard.
    • From the Analyze menu, select Model Visualizer. In the open Model Visualizer dialog, select to open the Sequence Diagram from Java Source Wizard and click Start.
    • In the Code Engineering Set, select an operation of the class and from the shortcut menu, select Reverse Implementation.
  2. Follow the steps as directed by the wizard.


What you should know when selecting classes for the diagram:

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Generate Sequence Diagram From Java Code Eclipse Plugin

  • Analyze and split long expressions in the diagram: Select to display every call as a separate call message with a temporary variable initialization, if the expression containing calls cannot be displayed as a call message. In the final expression message, these calls are replaced with appropriate temporary variable names.
  • Create reply message: Select to display the return message for every call message.
  • Wrap message text: Select to wrap message text in the diagram. In the Maximum wrapped messages name length (in pixels) box, specify the maximum message text length in pixels.

Related Pages:

  • Extending sequence diagrams

Generate Sequence Diagram From Java Code Enterprise Architect


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