public < H , R > Map < String , AttributeValue > convertKey ( final T key ) { final DynamoDBMapperFieldModel < T , H > hk = this . < H > hashKey ( ) ; final DynamoDBMapperFieldModel < T , R > rk = this . < R > rangeKeyIfExists ( ) ; return this . < H , R > convertKey ( hk . get ( key ) , ( rk == null ? ( R ) null : rk . get ( key ) ) ) ; }
Creates a new key map from the specified object .