* @see BeanDesc#getTypeVariables()
 * @see PropertyDesc#getParameterizedClassDesc()
 * @see FieldDesc#getParameterizedClassDesc()
 * @see ConstructorDesc#getParameterizedClassDescs()
 * @see MethodDesc#getParameterizedClassDesc()
 * @see MethodDesc#getParameterizedClassDescs()
 */
public abstract class ParameterizedClassDescFactory {

    /**
     * Do not instantiate.
     */
    protected ParameterizedClassDescFactory() {

     *
     * @return An array of {@link ParameterizedClassDesc} representing the parameter types of the method
     */
    ParameterizedClassDesc[] getParameterizedClassDescs();

    /**
     * Returns the element type if the parameter type of the method is a parameterized {@link Collection}.
     *
     * @param index
     *            The index of the parameter

        assertArgumentArrayIndex("index", index, parameterTypes.length);

        return parameterizedClassDescs[index].isParameterizedClass();
    }

    @Override
    public ParameterizedClassDesc[] getParameterizedClassDescs() {
        return parameterizedClassDescs;
    }

    @Override
    public Class<?> getElementClassOfCollection(final int index) {
        assertArgumentArrayIndex("index", index, parameterTypes.length);

    }

    @Override
    public boolean isParameterized() {
        return parameterizedClassDesc.isParameterizedClass();
    }

    @Override
    public ParameterizedClassDesc[] getParameterizedClassDescs() {
        return parameterizedClassDescs;
    }

    @Override
    public ParameterizedClassDesc getParameterizedClassDesc() {
        return parameterizedClassDesc;
    }

    @Override

     *
     * @return an array of {@link ParameterizedClassDesc} representing the parameter types of the method
     */
    ParameterizedClassDesc[] getParameterizedClassDescs();

    /**
     * Returns the {@link ParameterizedClassDesc} representing the return type of the method.
     *
     * @return the {@link ParameterizedClassDesc} representing the return type of the method