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
LibraryCommand command = new LibraryCommand( module );
		command.dropLibrary( (Library) library.getElement( ) );
	}
	/**
	 * Reloads the library with the given library file path. If the library
	 * already is included, reload it. If the library is not included, exception
	 * will be thrown.
	 * <p>
	 * Call this method cautiously ONLY on the condition that the library file
	 * is REALLY changed outside. After reload successfully, the command stack
	 * is cleared.
	 * 
	 * @param libraryToReload
	 *            the library instance
	 * @throws SemanticException
	 *             if error is encountered when handling
	 *             <code>IncludeLibrary</code> structure list. Or it maybe
	 *             because that the given library is not found in the design. Or
	 *             that the library has descedents in the current module
	 * @throws DesignFileException
	 *             if the library file is not found, or has fatal error.
	 */
	public void reloadLibrary( LibraryHandle libraryToReload )
			throws SemanticException, DesignFileException
	{
		if ( libraryToReload == null )
			return;
		LibraryCommand command = new LibraryCommand( module );
		command.reloadLibrary( libraryToReload.getLocation( ) );
	}