Release 1.1.0 of Oct-2012

• Improved handling of optimization process:
  • The solver’s method “findOptimalSolution” now has an optional third parameter:
    public Solution findOptimalSolution(Objective objective, Var objectiveVar, OptimizationStrategy optStrategy);
    where “optStrategy” can be one of 3 standard constants:
    • OptimizationStrategy.NATIVE – defined by a concrete implementation
    • OptimizationStrategy.BASIC – provided by a common JSR-331 implementation using a solution operator
    • OptimizationStrategy.DICHOTOMIZE – provided by a common JSR-331 implementation
• The optimization process may be controlled by two different time limits set by the following methods of the interface Solver:
  • setTimeLimit(millis) – a number of milliseconds for a search of one solution
  • setTimeLimitGlobal(millis) – a number of milliseconds for the entire search of an optimal solution
• The TCK now contains an additional 4 packages:
  • org.jcp.jsr331.test – mandatory JUnit tests that check compliance of different CP solvers to the standard
  • org.jcp.jsr331.samples – various constraint satisfaction and optimization problems that demonstrate the use of JSR-331
  • org.jcp.jsr331.linear.samples – various linear optimization problems that may be executed with any CP or LP solvers
  • org.jcp.jsr331.hakan – a collection of test problems contributed by Hakan Kjellerstrand