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/DesignElement.java
return sb.toString( );
		}
		if ( this instanceof ReportDesign )
			return "report"; 
		else if ( this instanceof Library )
			return "library"; 
		if ( getContainer( ) == null )
			return getDefn( ).getName( );
		ContainerSlot slot = getContainer( ).getSlot( getContainerSlot( ) );
		ISlotDefn slotDefn = getContainer( ).getDefn( ).getSlot(
				getContainerSlot( ) );
		StringBuffer sb = new StringBuffer( );
		sb.append( getContainer( ).getIdentifier( ) );
		sb.append( "." ); 
		sb.append( slotDefn.getDisplayName( ) );
		sb.append( "[" ); 
		sb.append( slot.findPosn( this ) );
		sb.append( "]" ); 
		return sb.toString( );
	}
	/**
	 * Sets the element with the id reference.
	 * <p>
	 * Part of: Inheritance system.
	 * 
	 * @param baseId
	 *            The id reference element.
	 */
	public void setBaseId( long baseId )
	{