Bug 149251 Inconsistent Handling of a Non-inheritable ROM Property
For a ROM property defined to be non-inheritable, an empty string property value should be consistently handled as an empty string, not as null. For example, an oda.dataSource extension defines a data source property with canInherit=false. When a oda-data-source handle get saved in a report design, it correctly includes the tag for such property, even when an empty string value is specified. <oda-data-source extensionID="my.oda.plugin" name="my Data Source" id="24"> ... <property name="ApplicationServer"></property> </oda-data-source> However, later when using the DE API to read its property value, a null is returned. Then when the report design is subsequently saved, the property tag is lost. Expects that an empty string value of a non-inhertiable property should be preserved.
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/api/ModuleHandle.java
ShiftLibraryCommand command = new ShiftLibraryCommand( module );
		command.shiftLibrary( (Library) library.getElement( ), toPosn );
	}
	/**
	 * Returns whether this module is read-only.
	 * 
	 * @return true, if this module is read-only. Otherwise, return false.
	 */
	public boolean isReadOnly( )
	{
		return module.isReadOnly( );
	}
	/**
	 * Returns the iterator over all included libraries. Each one is the
	 * instance of <code>IncludeLibraryHandle</code>
	 * 
	 * @return the iterator over all included libraries.
	 * @see IncludedLibraryHandle
	 */
	public Iterator includeLibrariesIterator( )
	{
		PropertyHandle propHandle = getPropertyHandle( LIBRARIES_PROP );
		assert propHandle != null;
		return propHandle.iterator( );
	}
	/**
	 * Includes one library with the given library file name. The new library
	 * will be appended to the library list.
	 * 
	 * @param libraryFileName