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/metadata/ElementDefn.java
* </ul>
	 * 
	 * @return the name option
	 */
	public int getNameOption( )
	{
		return nameOption;
	}
	/**
	 * Determines if this element acts as a container.
	 * 
	 * @return True if this element is a container, false otherwise.
	 */
	public boolean isContainer( )
	{
		return slots != null;
	}
	/**
	 * Returns the number of slots in this container.
	 * 
	 * @return The number of slots. Returns 0 if this element is not a
	 *         container.
	 */
	public int getSlotCount( )
	{
		if ( slots == null )
			return 0;
		return slots.size( );
	}
	/**