Bug 185931 Support to distinguish the week between Year-Week and Month-Week[1101]
Description: In our OLAP builder, the datetime dimension is divided into YEAR-QUARTER-MONTH-WEEK-DAY. When select all the levels, the WEEK should be the week(1 to 5) in one MONTH When select YEAR-WEEK levels, the WEEK should be the week(1 to 52) in one YEAR But now in our OLAP builder, the WEEK only belong to the MONTH, But not belong to the year, so if only select the YEAR-WEEK level, the result of crosstab is meaningless. The YEAR-DAY, MONTH-DAY and WEEK-DAY also have the same issues. we should define a rule to make sure the WEEK has a correct relationship of his parent
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/api/ModuleHandle.java
/**
	 * Returns the library handle with the given namespace.
	 * 
	 * @param namespace
	 *            the library namespace
	 * @return the library handle with the given namespace
	 */
	public LibraryHandle getLibrary( String namespace )
	{
		Module library = module.getLibraryWithNamespace( namespace,
				IAccessControl.DIRECTLY_INCLUDED_LEVEL );
		if ( library == null )
			return null;
		return (LibraryHandle) library.getHandle( library );
	}
	/**
	 * Returns the library handle with the given file name. The filename can
	 * include directory information, either relative or absolute directory. And
	 * the file should be on the local disk.
	 * 
	 * @param fileName
	 *            the library file name. The filename can include directory
	 *            information, either relative or absolute directory. And the
	 *            file should be on the local disk.
	 * @return the library handle with the given file name
	 */
	public LibraryHandle findLibrary( String fileName )
	{
		URL url = module.findResource( fileName, IResourceLocator.LIBRARY );
		if ( url == null )