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
assert nameSpace >= 0 && nameSpace < NAME_SPACE_COUNT;
		return moduleNameSpaces[nameSpace];
	}
	/**
	 * Returns the next element ID and increments the ID. Used to assign an ID
	 * to new elements.
	 * 
	 * @return The ID to assign to the new element.
	 */
	public long getNextID( )
	{
		return elementIDCounter++;
	}
	/**
	 * Adds an element to the id-to-element map. Does nothing if IDs are not
	 * enabled. Should be called only from the
	 * {@link org.eclipse.birt.report.model.command.ContentCommand ContentCommand}.
	 * 
	 * @param element
	 *            The new element to add.
	 */
	public void addElementID( DesignElement element )
	{
		assert idMap != null;
		assert element.getID( ) > 0;
		Long idObj = new Long( element.getID( ) );
		assert !idMap.containsKey( idObj );
		idMap.put( idObj, element );
		
		long id = element.getID( );