Marshalling Complex Types in a Web Service with Java

Question

I want to expose the following class as a web service.

import cern.colt.matrix.impl.DenseDoubleMatrix2D;

public class MatrixAlgebraImpl implements MatrixAlgebra{

    public DenseDoubleMatrix2D echo(DenseDoubleMatrix2D matrix) {
        return matrix;
    }
}

However DenseDoubleMatrix2D does not have a default constructor and its a third party library so I can't apply any annotations.

http://acs.lbl.gov/software/colt/api/cern/colt/matrix/impl/DenseDoubleMatrix2D.html

Ideally I would prefer not to annotate any code and have been looking to do this with CXF and Aegis. But any solution will do.

Answer 1

Make your own class that inherits from DenseDoubleMatrix2D and has a default constructor. Or use JAX-B and read http://weblogs.java.net/blog/kohsuke/archive/2005/09/using_jaxb_20s.html . CXF also supports JAX-B.