Bug 179737 The MeasureHandle should be able to provide data type info
We are now allow user input expression as measure expression. However this brings difficulties in determine the data type of a measure expression evaluation result. We need MeasureHandle to be enhanced to include the data type info. Please note that data type "any" is not accepted.
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/writer/ModuleWriter.java
List list = extDefn.getLocalProperties( );
		for ( int i = 0; i < list.size( ); i++ )
		{
			PropertyDefn prop = (PropertyDefn) list.get( i );
			if ( extensionIDProp.equals( prop.getName( ) ) )
				continue;
			Object value = obj.getLocalProperty( getModule( ), prop.getName( ) );
			if ( value != null )
			{
				boolean cdata = false;
				if ( prop.getTypeCode( ) == IPropertyType.XML_TYPE
						|| prop.getTypeCode( ) == IPropertyType.SCRIPT_TYPE )
					cdata = true;
				writeProperty( obj, ModelUtil.getTagByPropertyType( prop ),
						prop.getName( ), cdata );
			}
		}
	}
	/**
	 * Writes ODA exension properties.
	 * 
	 * @param obj
	 *            the ODA element to write
	 * @param provider
	 *            the extension provider
	 */
	private void writeOdaDummyProperties( DesignElement obj,
			ODAProvider provider )
	{
		assert provider instanceof OdaDummyProvider;