Code and DB Engineering

C++ round-trip code engineering

Generate, reverse and synchronize between ANSI C++ and UML class diagram. The following movie demonstrates reversing C++ to UML class diagram, modifies classes and synchronizes code again from UML class diagram.

Tutorial

• Generate and synchronize C++ code

Generate PHP doctrine layer

Generate executable PHP Doctrine object relational mapping (ORM) layer from standard UML class diagram and entity relationship diagram.

Instant code generation

Generate UML class diagram to 15 programming languages. Supported programming languages include Java, C#, VB.NET, PHP, ODL, Action Script, IDL, C++, Delphi, Perl, XML Schema, Python 2.6, Objective-C, Ada 95 and Ruby. The following movie demonstrates how to generate code using instant code generator.

The Instant Code Generator employs the Apache Velocity template engine to perform code generation. User can customize the template engine to generate code in their own code style easily. The following movie demonstrates how to customize the Instant Code Generator.

Instant reverse engineering

Reverse engine 12 programming languages to UML class diagram. Supported programming languages include Java, C++, .NET DDL or exe, IDL, Ada 95, XML, XML schema, JDBC, Hibernate, PHP 5.0 or above, Python and Objective-C. The latest version supports reversing source code to package diagram for high level analysis. The following movie demonstrates how to reverse source code using instant reverse.

Visual Paradigm for UML generates state machine code from UML state machine diagram to Java, C#, VB.NET and C++. The following screenshots demonstrate how to generate state machine code.

State machine diagram code generation

Step 1 of 7: Model the controller class

Model the controller class in class diagram, with the required operations added.

Step 2 of 7: Add a sub state machine diagram

Move the mouse cursor over the controller class, move to the resource icon at the bottom right, click on it and add a state machine diagram as sub-diagram of the controller class.

Step 3 of 7: Complete the state machine diagram

Model the state machine with state machine diagram. Both the states and transitions should be modeled accurately.

Step 4 of 7: Pick up operations for transitions

Open the transitions' specifications, and select the corresponding operations. Those operations are offered by the controller class.

Step 5 of 7: To generate state machine code

Select Tools > State Machine Code > Generate Code... from the main menu to generate state machine code.

Step 6 of 7: Specify output path

Specify the folder for storing the code to be generated, configure other options if needed. Click OK when ready.

Step 7 of 7: Using the generated code

The generated state machine code can be compiled and executed. You may run the sample application generated alongside to examine the effect of state transition. As a side note, you may also model an application with class diagram, generate code with Instant Generator, implement the generated code by calling the state machine code generated.

Project file

Generated state machine code

Visual Paradigm for UML supports generating database schema (DDL) from entity relationship diagram. Visual Paradigm for UML supports all major database vendors. You can generate full database initialization scripts of alter statements just for updating existing databases. The following movie shows you the database generation feature.

Visual Paradigm for UML supports generating Java ORM code for accessing relational database. The following movie demonstrates how to reverse existing database to ERD, synchronize ERD to UML class diagram, and generate Java ORM code to access database.

Visual Paradigm for UML supports generating both database schema (DDL) and Java ORM code for accessing databases. There are various options to configure the generated code and databases. The following screenshots outline the steps involved.

Generate DB and Java code

Step 1 of 7: Get ready for object and data model

Model the system with class diagram (with ORM Persistable classes) and produce the entity relationship diagram (ERD) through synchronization, or the other way round. Make sure the object model is synchronized with the data model.

Step 2 of 7: To generate code and database

Select Tools > Object-Relational Mapping (ORM) > Generate Code... from the main menu to generate ORM Java code.

Step 3 of 7: Specify output destination

Specify the file path of the code, libraries, and DDL to be generated. If you use an IDE, simply set the path to the Java project path.

Step 4 of 7: Configure database

Select Database tab. After that, select Export to database, and configure the target database. After all, click OK to start generating code and database.

Step 5 of 7: Setup development environment

In the IDE, refresh the project node to gain access to the generated files, and add the lib\orm.jar to project build path.

Step 6 of 7: Develop application

Develop the application through the use of the ORM classes. You may learn the usage of generated files by reading the sample files generated to the ormsamples folder.

Step 7 of 7: Execute the code

Run the code, enjoy!

Project file

Java project (containing the generated source files, libraries and DDL)