struct CassAggregateMeta
Functions
void cass_aggregate_meta_name
( aggregate_meta, name, name_length )Gets the name of the aggregate.
- Parameters:
Name Type Details in aggregate_meta out name out name_length
void cass_aggregate_meta_full_name
( aggregate_meta, full_name, full_name_length )Gets the full name of the aggregate. The full name includes the aggregate’s name and the aggregate’s signature: "name(type1 type2.. typeN)".
- Parameters:
Name Type Details in aggregate_meta out full_name out full_name_length
size_t cass_aggregate_meta_argument_count
( aggregate_meta )Gets the number of arguments this aggregate takes.
- Parameters:
Name Type Details in aggregate_meta - Returns:
Type Details size_tThe number of arguments.
const CassDataType * cass_aggregate_meta_argument_type
( aggregate_meta, index )Gets the aggregate’s argument type for the provided index.
- Parameters:
Name Type Details in aggregate_meta in index - Returns:
Type Details const CassDataType *The data type for argument. NULL returned if the index is out of range.
const CassDataType * cass_aggregate_meta_return_type
( aggregate_meta )Gets the return type of the aggregate.
- Parameters:
Name Type Details in aggregate_meta - Returns:
Type Details const CassDataType *The data type returned by the aggregate.
const CassDataType * cass_aggregate_meta_state_type
( aggregate_meta )Gets the state type of the aggregate.
- Parameters:
Name Type Details in aggregate_meta - Returns:
Type Details const CassDataType *The data type of the aggregate’s state.
const CassFunctionMeta * cass_aggregate_meta_state_func
( aggregate_meta )Gets the function metadata for the aggregate’s state function.
- Parameters:
Name Type Details in aggregate_meta - Returns:
Type Details const CassFunctionMeta *The function metadata for the state function.
const CassFunctionMeta * cass_aggregate_meta_final_func
( aggregate_meta )Gets the function metadata for the aggregates’s final function.
- Parameters:
Name Type Details in aggregate_meta - Returns:
Type Details const CassFunctionMeta *The function metadata for the final function.
const CassValue * cass_aggregate_meta_init_cond
( aggregate_meta )Gets the initial condition value for the aggregate.
Note: The value of the initial condition will always be a "varchar" type for Cassandra 3.0+.
- Parameters:
Name Type Details in aggregate_meta - Returns:
Type Details const CassValue *The value of the initial condition.
const CassValue * cass_aggregate_meta_field_by_name
( aggregate_meta, name )Gets a metadata field for the provided name. Metadata fields allow direct access to the column data found in the underlying "aggregates" metadata table.
- Parameters:
Name Type Details in aggregate_meta in name - Returns:
Type Details const CassValue *A metadata field value. NULL if the field does not exist.
const CassValue * cass_aggregate_meta_field_by_name_n
( aggregate_meta, name, name_length )Same as CassAggregateMeta::cass_aggregate_meta_field_by_name , but with lengths for string parameters.
- Parameters:
Name Type Details in aggregate_meta in name in name_length - Returns:
Type Details const CassValue *same as
CassAggregateMeta::cass_aggregate_meta_field_by_name- See Also: