CassPrepared | Scylla Docs

CassPrepared¶

struct CassPrepared¶

A statement that has been prepared cluster-side (It has been pre-parsed and cached).

A prepared statement is read-only and it is thread-safe to concurrently bind new statements.

Public Functions

void cass_prepared_free(const CassPrepared *prepared)¶

Frees a prepared instance.

CassStatement *cass_prepared_bind(const CassPrepared *prepared)¶

Creates a bound statement from a pre-prepared statement.

See also

CassError cass_prepared_parameter_name(const CassPrepared *prepared, size_t index, const char **name, size_t *name_length)¶

Gets the name of a parameter at the specified index.

Parameters

Returns

CASS_OK if successful, otherwise an error occurred.

const CassDataType *cass_prepared_parameter_data_type(const CassPrepared *prepared, size_t index)¶

Gets the data type of a parameter at the specified index.

Parameters

Returns

Returns a reference to the data type of the parameter. Do not free this reference as it is bound to the lifetime of the prepared.

const CassDataType *cass_prepared_parameter_data_type_by_name(const CassPrepared *prepared, const char *name)¶

Gets the data type of a parameter for the specified name.

Parameters

Returns

Returns a reference to the data type of the parameter. Do not free this reference as it is bound to the lifetime of the prepared.

const CassDataType *cass_prepared_parameter_data_type_by_name_n(const CassPrepared *prepared, const char *name, size_t name_length)¶

Same as cass_prepared_parameter_data_type_by_name(), but with lengths for string parameters.