Class DependencyConstraint

java.lang.Object
jdepend.framework.DependencyConstraint
public class DependencyConstraint extends Object
The DependencyConstraint class is a constraint that tests whether two package-dependency graphs are equivalent.

This class is useful for writing package dependency assertions (e.g. JUnit). For example, the following JUnit test will ensure that the 'ejb' and 'web' packages only depend upon the 'util' package, and no others: 


public void testDependencyConstraint() {

    JDepend jdepend = new JDepend();
    jdepend.addDirectory("/path/to/classes");
    Collection analyzedPackages = jdepend.analyze();

    DependencyConstraint constraint = new DependencyConstraint();

    JavaPackage ejb = constraint.addPackage("com.xyz.ejb");
    JavaPackage web = constraint.addPackage("com.xyz.web");
    JavaPackage util = constraint.addPackage("com.xyz.util");

    ejb.dependsUpon(util);
    web.dependsUpon(util);

    assertEquals("Dependency mismatch", true, constraint
            .match(analyzedPackages));
}

Author:
Mike Clark, Clarkware Consulting, Inc.

  • Constructor Details

    • DependencyConstraint

      public DependencyConstraint()

  • Method Details

    • addPackage

      public JavaPackage addPackage(String packageName)

    • addPackage

      public void addPackage(JavaPackage jPackage)

    • getPackages

      public Collection getPackages()

    • match

      public boolean match(Collection expectedPackages)
      Indicates whether the specified packages match the packages in this constraint.
      Returns:
      true if the packages match this constraint