A scala library for IBM ILOG CPLEX.

This library combines functional programming, mathematical programming and constraint programming allowing to model optimization problems with a syntax that is close to the standard presentation of these problems in textbooks and scientific papers. For instance, a constraint such as:

can be written as:

    model.add(sum (for (i <- 1 to n) yield a(i) * x(i)) <= c(j))

To get up to speed, the easiest way to start with this library is to study the examples:

• src/examples/mp: examples of optimization models based on mathematical programming
• src/examples/cp: examples of optimization models based on constraint programming

This library has been tested using IBM ILOG CPLEX 12.10, Scala 2.12.10 and Java JDK 8 on Windows 10 64 bits. Port to 32 bits or Linux should be fairly easy, see file build.gradle. Last revision compatible with IBM ILOG Decision Optimization Center 3.9 is release 1.2.0 (Java 6, Scala 2.11.8)

If you want to play with this library and do not have a license of CPLEX, you can download the
Community Edition of IBM ILOG CPLEX Optimization Studio

To build this library use the Gradle wrapper provided or install Gradle 2.10 and set the environment variable CPLEX_STUDIO_HOME (e.g. on windows C:\IBM\ILOG\CPLEX_Studio129).

Then do:

$ ./gradlew build

This will create the scala library in directory build/libs.

To run the tests, do:

$ ./gradlew test

Reports are generated in directory build/reports/tests.

To generate the scala docs, do:

$ ./gradlew scaladoc

The scala documentation is generated in directory build/docs/scaladoc.

To clean and rebuild the library, do:

$ ./gradlew clean build

For a complete list of Gradle tasks, do:

$ ./gradlew tasks