Associates a number of different elements with the same specified key in the element map with the specified identifier.
Parameters:
elementMapId
Note: When the element map with such an identifier does not exist, the generator raises an error.
key
Note: null
value for the hash key is not allowed.
In that case the function simply does nothing and returns 0
.
elements
createElementMap(), putElementByKey(),
putElementByKeys(), putElementsByKeys()