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/core/Module.java
*/
	protected void setIntrinsicProperty( String propName, Object value )
	{
		if ( UNITS_PROP.equals( propName ) )
			units = (String) value;
		else if ( THEME_PROP.equals( propName ) )
		{
			updateReference( theme, (ElementRefValue) value,
					getPropertyDefn( THEME_PROP ) );
			theme = (ElementRefValue) value;
		}
		else
			super.setIntrinsicProperty( propName, value );
	}
	/**
	 * Returns the writer for this moudle.
	 * 
	 * @return the writer for this moudle.
	 */
	public abstract ModuleWriter getWriter( );
	/**
	 * Returns the module handle.
	 * 
	 * @return module handle
	 */
	public ModuleHandle getModuleHandle( )
	{
		return (ModuleHandle) getHandle( this );
	}
	/**