Removes all mappings from the specified element map.
Parameter:
elementMapId
The element map identifier.Note: When the element map with such an identifier does not exist, the generator raises an error.
Returns:
The number of key/element associations that has been removed (0 will indicate that the map was already empty).
See Also:
createElementMap(), checkElementMap(), removeElementMap(),
removeElementByKey(), removeElementsByKey()