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/metadata/PropertyValueException.java
this.propertyName = propDefn.getName( );
		this.propertyTypeName = ( (PropertyDefn) propDefn ).getType( )
				.getName( );
	}
	/**
	 * Constructs an exception given an invalid value, error code.
	 * 
	 * @param value
	 *            The invalid value.
	 * @param errCode
	 *            description of the problem
	 */
	public PropertyValueException( Object value, String errCode )
	{
		super( null, errCode );
		this.invalidValue = value;
	}
	/**
	 * Sets the element, if it is known.
	 * 
	 * @param obj
	 *            The element on which the property was being set.
	 */
	public void setElement( DesignElement obj )
	{
		element = obj;
	}
	/**
	 * Sets the name of the property being set, if it is known.
	 *