You can specify properties (named values) when you execute a map using any of the mechanisms to invoke a map. These properties can be read during map execution using the GetMapProperty function.
If you are using an ESB to execute a map, the properties of the message triggering the map execution are automatically included as map execution properties.
The following properties are automatically specified. Properties starting with oaklandsw are reserved.
oaklandsw.source.url - The URL of the source document on which the map is executing.
oaklandsw.result.url - The URL of the result document on which the map is executing.