DataStax C/C++ Driver

C/C++ driver for Apache Cassandra. Uses the Cassandra Query Language versions 3 over the Cassandra Binary Protocol (versions 1 or 2).

Macros

CASS_VERSION_MAJOR

= 2

CASS_VERSION_MINOR

= 3

CASS_VERSION_PATCH

= 0

CASS_VERSION_SUFFIX

= ""

CASS_INET_V4_LENGTH

= 4

The size of an IPv4 address

CASS_INET_V6_LENGTH

= 16

The size of an IPv6 address

CASS_INET_STRING_LENGTH

= 46

The size of an inet string including a null terminator.

CASS_UUID_STRING_LENGTH

= 37

The size of a hexadecimal UUID string including a null terminator.

CASS_CONSISTENCY_MAP

XX(CASS_CONSISTENCY_UNKNOWN, "UNKNOWN") \
  XX(CASS_CONSISTENCY_ANY, "ANY") \
  XX(CASS_CONSISTENCY_ONE, "ONE") \
  XX(CASS_CONSISTENCY_TWO, "TWO") \
  XX(CASS_CONSISTENCY_THREE, "THREE") \
  XX(CASS_CONSISTENCY_QUORUM, "QUORUM") \
  XX(CASS_CONSISTENCY_ALL, "ALL") \
  XX(CASS_CONSISTENCY_LOCAL_QUORUM, "LOCAL_QUORUM") \
  XX(CASS_CONSISTENCY_EACH_QUORUM, "EACH_QUORUM") \
  XX(CASS_CONSISTENCY_SERIAL, "SERIAL") \
  XX(CASS_CONSISTENCY_LOCAL_SERIAL, "LOCAL_SERIAL") \
  XX(CASS_CONSISTENCY_LOCAL_ONE, "LOCAL_ONE")

CASS_WRITE_TYPE_MAP

XX(CASS_WRITE_TYPE_SIMPLE, "SIMPLE") \
  XX(CASS_WRITE_TYPE_BATCH, "BATCH") \
  XX(CASS_WRITE_TYPE_UNLOGGED_BATCH, "UNLOGGED_BATCH") \
  XX(CASS_WRITE_TYPE_COUNTER, "COUNTER") \
  XX(CASS_WRITE_TYPE_BATCH_LOG, "BATCH_LOG") \
  XX(CASS_WRITE_TYPE_CAS, "CAS")

CASS_LOG_MAX_MESSAGE_SIZE

= 256

Maximum size of a log message

Types

cass_float_t

typedef float cass_float_t

cass_double_t

typedef double cass_double_t

cass_int8_t

typedef char cass_int8_t

cass_uint8_t

typedef unsigned char cass_uint8_t

cass_int16_t

typedef short cass_int16_t

cass_uint16_t

typedef unsigned short cass_uint16_t

cass_int32_t

typedef int cass_int32_t

cass_uint32_t

typedef unsigned int cass_uint32_t

cass_int64_t

typedef long long cass_int64_t

cass_uint64_t

typedef unsigned long long cass_uint64_t

cass_byte_t

typedef cass_uint8_t cass_byte_t

cass_duration_t

typedef cass_uint64_t cass_duration_t

CassCluster

typedef struct CassCluster_ CassCluster

CassSession

typedef struct CassSession_ CassSession

CassStatement

typedef struct CassStatement_ CassStatement

CassBatch

typedef struct CassBatch_ CassBatch

CassFuture

typedef struct CassFuture_ CassFuture

CassPrepared

typedef struct CassPrepared_ CassPrepared

CassResult

typedef struct CassResult_ CassResult

CassErrorResult

typedef struct CassErrorResult_ CassErrorResult

CassIterator

typedef struct CassIterator_ CassIterator

CassRow

typedef struct CassRow_ CassRow

CassValue

typedef struct CassValue_ CassValue

CassDataType

typedef struct CassDataType_ CassDataType

CassFunctionMeta

typedef struct CassFunctionMeta_ CassFunctionMeta

CassAggregateMeta

typedef struct CassAggregateMeta_ CassAggregateMeta

CassCollection

typedef struct CassCollection_ CassCollection

CassTuple

typedef struct CassTuple_ CassTuple

CassUserType

typedef struct CassUserType_ CassUserType

CassSsl

typedef struct CassSsl_ CassSsl

CassSchemaMeta

typedef struct CassSchemaMeta_ CassSchemaMeta

CassKeyspaceMeta

typedef struct CassKeyspaceMeta_ CassKeyspaceMeta

CassTableMeta

typedef struct CassTableMeta_ CassTableMeta

CassMaterializedViewMeta

typedef struct CassMaterializedViewMeta_ CassMaterializedViewMeta

CassColumnMeta

typedef struct CassColumnMeta_ CassColumnMeta

CassIndexMeta

typedef struct CassIndexMeta_ CassIndexMeta

CassUuidGen

typedef struct CassUuidGen_ CassUuidGen

CassTimestampGen

typedef struct CassTimestampGen_ CassTimestampGen

CassRetryPolicy

typedef struct CassRetryPolicy_ CassRetryPolicy

CassCustomPayload

typedef struct CassCustomPayload_ CassCustomPayload

CassFutureCallback

typedef void(* CassFutureCallback) (CassFuture *future, void *data)

A callback that’s notified when the future is set.

See Also:

CassFuture::cass_future_set_callback

CassLogCallback

typedef void(* CassLogCallback) (const CassLogMessage *message, void *data)

A callback that’s used to handle logging.

See Also:

cass_log_set_callback;

Enums

cass_bool_t

cass_false = 0
cass_true = 1

CassConsistency

CASS_CONSISTENCY_UNKNOWN = 0xFFFF
CASS_CONSISTENCY_ANY = 0x0000
CASS_CONSISTENCY_ONE = 0x0001
CASS_CONSISTENCY_TWO = 0x0002
CASS_CONSISTENCY_THREE = 0x0003
CASS_CONSISTENCY_QUORUM = 0x0004
CASS_CONSISTENCY_ALL = 0x0005
CASS_CONSISTENCY_LOCAL_QUORUM = 0x0006
CASS_CONSISTENCY_EACH_QUORUM = 0x0007
CASS_CONSISTENCY_SERIAL = 0x0008
CASS_CONSISTENCY_LOCAL_SERIAL = 0x0009
CASS_CONSISTENCY_LOCAL_ONE = 0x000A

CassWriteType

CASS_WRITE_TYPE_UKNOWN
CASS_WRITE_TYPE_SIMPLE
CASS_WRITE_TYPE_BATCH
CASS_WRITE_TYPE_UNLOGGED_BATCH
CASS_WRITE_TYPE_COUNTER
CASS_WRITE_TYPE_BATCH_LOG
CASS_WRITE_TYPE_CAS

CassColumnType

CASS_COLUMN_TYPE_REGULAR
CASS_COLUMN_TYPE_PARTITION_KEY
CASS_COLUMN_TYPE_CLUSTERING_KEY
CASS_COLUMN_TYPE_STATIC
CASS_COLUMN_TYPE_COMPACT_VALUE

CassIndexType

CASS_INDEX_TYPE_UNKNOWN
CASS_INDEX_TYPE_KEYS
CASS_INDEX_TYPE_CUSTOM
CASS_INDEX_TYPE_COMPOSITES

CassValueType

CASS_VALUE_TYPE_UNKNOWN = 0xFFFF
CASS_VALUE_TYPE_CUSTOM = 0x0000
CASS_VALUE_TYPE_ASCII = 0x0001
CASS_VALUE_TYPE_BIGINT = 0x0002
CASS_VALUE_TYPE_BLOB = 0x0003
CASS_VALUE_TYPE_BOOLEAN = 0x0004
CASS_VALUE_TYPE_COUNTER = 0x0005
CASS_VALUE_TYPE_DECIMAL = 0x0006
CASS_VALUE_TYPE_DOUBLE = 0x0007
CASS_VALUE_TYPE_FLOAT = 0x0008
CASS_VALUE_TYPE_INT = 0x0009
CASS_VALUE_TYPE_TEXT = 0x000A
CASS_VALUE_TYPE_TIMESTAMP = 0x000B
CASS_VALUE_TYPE_UUID = 0x000C
CASS_VALUE_TYPE_VARCHAR = 0x000D
CASS_VALUE_TYPE_VARINT = 0x000E
CASS_VALUE_TYPE_TIMEUUID = 0x000F
CASS_VALUE_TYPE_INET = 0x0010
CASS_VALUE_TYPE_DATE = 0x0011
CASS_VALUE_TYPE_TIME = 0x0012
CASS_VALUE_TYPE_SMALL_INT = 0x0013
CASS_VALUE_TYPE_TINY_INT = 0x0014
CASS_VALUE_TYPE_LIST = 0x0020
CASS_VALUE_TYPE_MAP = 0x0021
CASS_VALUE_TYPE_SET = 0x0022
CASS_VALUE_TYPE_UDT = 0x0030
CASS_VALUE_TYPE_TUPLE = 0x0031

CassClusteringOrder

CASS_CLUSTERING_ORDER_NONE
CASS_CLUSTERING_ORDER_ASC
CASS_CLUSTERING_ORDER_DESC

CassCollectionType

CASS_COLLECTION_TYPE_LIST = CASS_VALUE_TYPE_LIST
CASS_COLLECTION_TYPE_MAP = CASS_VALUE_TYPE_MAP
CASS_COLLECTION_TYPE_SET = CASS_VALUE_TYPE_SET

CassBatchType

CASS_BATCH_TYPE_LOGGED = 0x00
CASS_BATCH_TYPE_UNLOGGED = 0x01
CASS_BATCH_TYPE_COUNTER = 0x02

CassIteratorType

CASS_ITERATOR_TYPE_RESULT
CASS_ITERATOR_TYPE_ROW
CASS_ITERATOR_TYPE_COLLECTION
CASS_ITERATOR_TYPE_MAP
CASS_ITERATOR_TYPE_TUPLE
CASS_ITERATOR_TYPE_USER_TYPE_FIELD
CASS_ITERATOR_TYPE_META_FIELD
CASS_ITERATOR_TYPE_KEYSPACE_META
CASS_ITERATOR_TYPE_TABLE_META
CASS_ITERATOR_TYPE_TYPE_META
CASS_ITERATOR_TYPE_FUNCTION_META
CASS_ITERATOR_TYPE_AGGREGATE_META
CASS_ITERATOR_TYPE_COLUMN_META
CASS_ITERATOR_TYPE_INDEX_META
CASS_ITERATOR_TYPE_MATERIALIZED_VIEW_META

CassLogLevel

CASS_LOG_DISABLED
CASS_LOG_CRITICAL
CASS_LOG_ERROR
CASS_LOG_WARN
CASS_LOG_INFO
CASS_LOG_DEBUG
CASS_LOG_TRACE

CassSslVerifyFlags

CASS_SSL_VERIFY_NONE
CASS_SSL_VERIFY_PEER_CERT
CASS_SSL_VERIFY_PEER_IDENTITY

CassErrorSource

CASS_ERROR_SOURCE_NONE
CASS_ERROR_SOURCE_LIB
CASS_ERROR_SOURCE_SERVER
CASS_ERROR_SOURCE_SSL
CASS_ERROR_SOURCE_COMPRESSION

CassError

CASS_OK = 0
CASS_ERROR_LIB_BAD_PARAMS = (( CASS_ERROR_SOURCE_LIB << 24) | 1 )
CASS_ERROR_LIB_NO_STREAMS = (( CASS_ERROR_SOURCE_LIB << 24) | 2 )
CASS_ERROR_LIB_UNABLE_TO_INIT = (( CASS_ERROR_SOURCE_LIB << 24) | 3 )
CASS_ERROR_LIB_MESSAGE_ENCODE = (( CASS_ERROR_SOURCE_LIB << 24) | 4 )
CASS_ERROR_LIB_HOST_RESOLUTION = (( CASS_ERROR_SOURCE_LIB << 24) | 5 )
CASS_ERROR_LIB_UNEXPECTED_RESPONSE = (( CASS_ERROR_SOURCE_LIB << 24) | 6 )
CASS_ERROR_LIB_REQUEST_QUEUE_FULL = (( CASS_ERROR_SOURCE_LIB << 24) | 7 )
CASS_ERROR_LIB_NO_AVAILABLE_IO_THREAD = (( CASS_ERROR_SOURCE_LIB << 24) | 8 )
CASS_ERROR_LIB_WRITE_ERROR = (( CASS_ERROR_SOURCE_LIB << 24) | 9 )
CASS_ERROR_LIB_NO_HOSTS_AVAILABLE = (( CASS_ERROR_SOURCE_LIB << 24) | 10 )
CASS_ERROR_LIB_INDEX_OUT_OF_BOUNDS = (( CASS_ERROR_SOURCE_LIB << 24) | 11 )
CASS_ERROR_LIB_INVALID_ITEM_COUNT = (( CASS_ERROR_SOURCE_LIB << 24) | 12 )
CASS_ERROR_LIB_INVALID_VALUE_TYPE = (( CASS_ERROR_SOURCE_LIB << 24) | 13 )
CASS_ERROR_LIB_REQUEST_TIMED_OUT = (( CASS_ERROR_SOURCE_LIB << 24) | 14 )
CASS_ERROR_LIB_UNABLE_TO_SET_KEYSPACE = (( CASS_ERROR_SOURCE_LIB << 24) | 15 )
CASS_ERROR_LIB_CALLBACK_ALREADY_SET = (( CASS_ERROR_SOURCE_LIB << 24) | 16 )
CASS_ERROR_LIB_INVALID_STATEMENT_TYPE = (( CASS_ERROR_SOURCE_LIB << 24) | 17 )
CASS_ERROR_LIB_NAME_DOES_NOT_EXIST = (( CASS_ERROR_SOURCE_LIB << 24) | 18 )
CASS_ERROR_LIB_UNABLE_TO_DETERMINE_PROTOCOL = (( CASS_ERROR_SOURCE_LIB << 24) | 19 )
CASS_ERROR_LIB_NULL_VALUE = (( CASS_ERROR_SOURCE_LIB << 24) | 20 )
CASS_ERROR_LIB_NOT_IMPLEMENTED = (( CASS_ERROR_SOURCE_LIB << 24) | 21 )
CASS_ERROR_LIB_UNABLE_TO_CONNECT = (( CASS_ERROR_SOURCE_LIB << 24) | 22 )
CASS_ERROR_LIB_UNABLE_TO_CLOSE = (( CASS_ERROR_SOURCE_LIB << 24) | 23 )
CASS_ERROR_LIB_NO_PAGING_STATE = (( CASS_ERROR_SOURCE_LIB << 24) | 24 )
CASS_ERROR_LIB_PARAMETER_UNSET = (( CASS_ERROR_SOURCE_LIB << 24) | 25 )
CASS_ERROR_LIB_INVALID_ERROR_RESULT_TYPE = (( CASS_ERROR_SOURCE_LIB << 24) | 26 )
CASS_ERROR_LIB_INVALID_FUTURE_TYPE = (( CASS_ERROR_SOURCE_LIB << 24) | 27 )
CASS_ERROR_SERVER_SERVER_ERROR = (( CASS_ERROR_SOURCE_SERVER << 24) | 0x0000 )
CASS_ERROR_SERVER_PROTOCOL_ERROR = (( CASS_ERROR_SOURCE_SERVER << 24) | 0x000A )
CASS_ERROR_SERVER_BAD_CREDENTIALS = (( CASS_ERROR_SOURCE_SERVER << 24) | 0x0100 )
CASS_ERROR_SERVER_UNAVAILABLE = (( CASS_ERROR_SOURCE_SERVER << 24) | 0x1000 )
CASS_ERROR_SERVER_OVERLOADED = (( CASS_ERROR_SOURCE_SERVER << 24) | 0x1001 )
CASS_ERROR_SERVER_IS_BOOTSTRAPPING = (( CASS_ERROR_SOURCE_SERVER << 24) | 0x1002 )
CASS_ERROR_SERVER_TRUNCATE_ERROR = (( CASS_ERROR_SOURCE_SERVER << 24) | 0x1003 )
CASS_ERROR_SERVER_WRITE_TIMEOUT = (( CASS_ERROR_SOURCE_SERVER << 24) | 0x1100 )
CASS_ERROR_SERVER_READ_TIMEOUT = (( CASS_ERROR_SOURCE_SERVER << 24) | 0x1200 )
CASS_ERROR_SERVER_READ_FAILURE = (( CASS_ERROR_SOURCE_SERVER << 24) | 0x1300 )
CASS_ERROR_SERVER_FUNCTION_FAILURE = (( CASS_ERROR_SOURCE_SERVER << 24) | 0x1400 )
CASS_ERROR_SERVER_WRITE_FAILURE = (( CASS_ERROR_SOURCE_SERVER << 24) | 0x1500 )
CASS_ERROR_SERVER_SYNTAX_ERROR = (( CASS_ERROR_SOURCE_SERVER << 24) | 0x2000 )
CASS_ERROR_SERVER_UNAUTHORIZED = (( CASS_ERROR_SOURCE_SERVER << 24) | 0x2100 )
CASS_ERROR_SERVER_INVALID_QUERY = (( CASS_ERROR_SOURCE_SERVER << 24) | 0x2200 )
CASS_ERROR_SERVER_CONFIG_ERROR = (( CASS_ERROR_SOURCE_SERVER << 24) | 0x2300 )
CASS_ERROR_SERVER_ALREADY_EXISTS = (( CASS_ERROR_SOURCE_SERVER << 24) | 0x2400 )
CASS_ERROR_SERVER_UNPREPARED = (( CASS_ERROR_SOURCE_SERVER << 24) | 0x2500 )
CASS_ERROR_SSL_INVALID_CERT = (( CASS_ERROR_SOURCE_SSL << 24) | 1 )
CASS_ERROR_SSL_INVALID_PRIVATE_KEY = (( CASS_ERROR_SOURCE_SSL << 24) | 2 )
CASS_ERROR_SSL_NO_PEER_CERT = (( CASS_ERROR_SOURCE_SSL << 24) | 3 )
CASS_ERROR_SSL_INVALID_PEER_CERT = (( CASS_ERROR_SOURCE_SSL << 24) | 4 )
CASS_ERROR_SSL_IDENTITY_MISMATCH = (( CASS_ERROR_SOURCE_SSL << 24) | 5 )
CASS_ERROR_SSL_PROTOCOL_ERROR = (( CASS_ERROR_SOURCE_SSL << 24) | 6 )

Functions

CassValueType

cass_data_type_type

( data_type )

Gets the value type of the specified data type.

Parameters:

Name	Type	Details
in `data_type`

Returns:

Type	Details
`CassValueType`	The value type

cass_bool_t

cass_data_type_is_frozen

( data_type )

Gets whether a data type is frozen.

Requires Cassandra: 2.1+

Parameters:

Name	Type	Details
in `data_type`

Returns:

Type	Details
`cass_bool_t`	cass_true if the data type is frozen, otherwise cass_false.

CassError

cass_data_type_type_name

( data_type, type_name, type_name_length )

Gets the type name of a UDT data type.

Note: Only valid for UDT data types.

Parameters:

Name	Type	Details
in `data_type`
out `type_name`
out `type_name_length`

Returns:

Type	Details
`CassError`	CASS_OK if successful, otherwise an error occurred.

CassError

cass_data_type_set_type_name

( data_type, type_name )

Sets the type name of a UDT data type.

Note: Only valid for UDT data types.

Parameters:

Name	Type	Details
in `data_type`
in `type_name`

Returns:

Type	Details
`CassError`	CASS_OK if successful, otherwise an error occurred.

CassError

cass_data_type_keyspace

( data_type, keyspace, keyspace_length )

Gets the type name of a UDT data type.

Note: Only valid for UDT data types.

Requires Cassandra: 2.1+

Parameters:

Name	Type	Details
in `data_type`
out `keyspace`
out `keyspace_length`

Returns:

Type	Details
`CassError`	CASS_OK if successful, otherwise an error occurred.

CassError

cass_data_type_set_keyspace

( data_type, keyspace )

Sets the keyspace of a UDT data type.

Note: Only valid for UDT data types.

Requires Cassandra: 2.1+

Parameters:

Name	Type	Details
in `data_type`
in `keyspace`

Returns:

Type	Details
`CassError`	CASS_OK if successful, otherwise an error occurred.

CassError

cass_data_type_class_name

( data_type, class_name, class_name_length )

Gets the class name of a custom data type.

Note: Only valid for custom data types.

Parameters:

Name	Type	Details
in `data_type`
out `class_name`
out `class_name_length`

Returns:

Type	Details
`CassError`	CASS_OK if successful, otherwise an error occurred.

CassError

cass_data_type_set_class_name

( data_type, class_name )

Sets the class name of a custom data type.

Note: Only valid for custom data types.

Parameters:

Name	Type	Details
in `data_type`
in `class_name`

Returns:

Type	Details
`CassError`	CASS_OK if successful, otherwise an error occurred.

size_t

cass_data_type_sub_type_count

( data_type )

Gets the sub-data type count of a UDT (user defined type), tuple or collection.

Note: Only valid for UDT, tuple and collection data types.

Parameters:

Name	Type	Details
in `data_type`

Returns:

Type	Details
`size_t`	Returns the number of sub-data types

size_t

cass_data_sub_type_count

( data_type )

Deprecated:

Use cass_data_type_sub_type_count

Parameters:

Name	Type	Details
`data_type`

const CassDataType *

cass_data_type_sub_data_type

( data_type, index )

Gets the sub-data type count of a UDT (user defined type), tuple or collection.

Note: Only valid for UDT, tuple and collection data types.

Parameters:

Name	Type	Details
in `data_type`
in `index`

Returns:

Type	Details
`const CassDataType *`	Returns the number of sub-data types Gets the sub-data type of a UDT (user defined type), tuple or collection at the specified index.
`const CassDataType *`	Returns a reference to a child data type. Do not free this reference as it is bound to the lifetime of the parent data type. NULL is returned if the index is out of range.

const CassDataType *

cass_data_type_sub_data_type_by_name

( data_type, name )

Gets the sub-data type of a UDT (user defined type) at the specified index.

Note: Only valid for UDT data types.

Requires Cassandra: 2.1+

Parameters:

Name	Type	Details
in `data_type`
in `name`

Returns:

Type	Details
`const CassDataType *`	Returns a reference to a child data type. Do not free this reference as it is bound to the lifetime of the parent data type. NULL is returned if the name doesn’t exist.

CassError

cass_data_type_sub_type_name

( data_type, index, name, name_length )

Gets the sub-type name of a UDT (user defined type) at the specified index.

Requires Cassandra: 2.1+

Note: Only valid for UDT data types.

Parameters:

Name	Type	Details
in `data_type`
in `index`
out `name`
out `name_length`

Returns:

Type	Details
`CassError`	CASS_OK if successful, otherwise an error occurred.

CassError

cass_data_type_add_sub_type

( data_type, sub_data_type )

Adds a sub-data type to a tuple or collection.

Note: Only valid for tuple and collection data types.

Parameters:

Name	Type	Details
in `data_type`
in `sub_data_type`

Returns:

Type	Details
`CassError`	CASS_OK if successful, otherwise an error occurred.

CassError

cass_data_type_add_sub_type_by_name

( data_type, name, sub_data_type )

Adds a sub-data type to a UDT (user defined type).

Note: Only valid for UDT data types.

Requires Cassandra: 2.1+

Parameters:

Name	Type	Details
in `data_type`
in `name`
in `sub_data_type`

Returns:

Type	Details
`CassError`	CASS_OK if successful, otherwise an error occurred.

CassError

cass_data_type_add_sub_type_by_name_n

( data_type, name, name_length, sub_data_type )

Same as cass_data_type_add_sub_type_by_name, but with lengths for string parameters.

Note: Only valid for UDT data types.

Requires Cassandra: 2.1+

Parameters:

Name	Type	Details
in `data_type`
in `name`
in `name_length`
in `sub_data_type`

Returns:

Type	Details
`CassError`	CASS_OK if successful, otherwise an error occurred.

CassError

cass_data_type_add_sub_value_type

( data_type, sub_value_type )

Adds a sub-data type to a tuple or collection using a value type.

Note: Only valid for tuple and collection data types.

Parameters:

Name	Type	Details
in `data_type`
in `sub_value_type`

Returns:

Type	Details
`CassError`	CASS_OK if successful, otherwise an error occurred.

CassError

cass_data_type_add_sub_value_type_by_name

( data_type, name, sub_value_type )

Adds a sub-data type to a UDT (user defined type) using a value type.

Note: Only valid for UDT data types.

Requires Cassandra: 2.1+

Parameters:

Name	Type	Details
in `data_type`
in `name`
in `sub_value_type`

Returns:

Type	Details
`CassError`	CASS_OK if successful, otherwise an error occurred.

CassError

cass_data_type_add_sub_value_type_by_name_n

( data_type, name, name_length, sub_value_type )

Same as cass_data_type_add_sub_value_type_by_name, but with lengths for string parameters.

Note: Only valid for UDT data types.

Requires Cassandra: 2.1+

Parameters:

Name	Type	Details
in `data_type`
in `name`
in `name_length`
in `sub_value_type`

Returns:

Type	Details
`CassError`	CASS_OK if successful, otherwise an error occurred.

const CassDataType *

cass_collection_data_type

( collection )

Gets the data type of a collection.

Parameters:

Name	Type	Details
in `collection`

Returns:

Type	Details
`const CassDataType *`	Returns a reference to the data type of the collection. Do not free this reference as it is bound to the lifetime of the collection.

const CassDataType *

cass_tuple_data_type

( tuple )

Gets the data type of a tuple.

Requires Cassandra: 2.1+

Parameters:

Name	Type	Details
in `tuple`

Returns:

Type	Details
`const CassDataType *`	Returns a reference to the data type of the tuple. Do not free this reference as it is bound to the lifetime of the tuple.

const CassDataType *

cass_user_type_data_type

( user_type )

Gets the data type of a user defined type.

Requires Cassandra: 2.1+

Parameters:

Name	Type	Details
in `user_type`

Returns:

Type	Details
`const CassDataType *`	Returns a reference to the data type of the user defined type. Do not free this reference as it is bound to the lifetime of the user defined type.

const char *

cass_consistency_string

( consistency )

Gets the string for a consistency.

Parameters:

Name	Type	Details
in `consistency`

Returns:

Type	Details
`const char *`	A null-terminated string for the consistency. Example: “ALL”, “ONE”, “QUORUM”, etc.

const char *

cass_write_type_string

( write_type )

Gets the string for a write type.

Parameters:

Name	Type	Details
in `write_type`

Returns:

Type	Details
`const char *`	A null-terminated string for the write type. Example: “BATCH”, “SIMPLE”, “COUNTER”, etc.

const char *

cass_error_desc

( error )

Gets a description for an error code.

Parameters:

Name	Type	Details
in `error`

Returns:

Type	Details
`const char *`	A null-terminated string describing the error.

void

cass_log_cleanup

( )

Explicitly wait for the log to flush and deallocate resources. This MUST be the last call using the library. It is an error to call any cass_*() functions after this call.

Deprecated:

This is no longer useful and does nothing. Expect this to be removed in a few releases.

void

cass_log_set_level

( log_level )

Sets the log level.

Note: This needs to be done before any call that might log, such as any of the cass_cluster_*() or cass_ssl_*() functions.

Default: CASS_LOG_WARN

Parameters:

Name	Type	Details
in `log_level`

void

cass_log_set_callback

( callback, data )

Sets a callback for handling logging events.

Note: This needs to be done before any call that might log, such as any of the cass_cluster_*() or cass_ssl_*() functions.

Default: An internal callback that prints to stderr

Parameters:

Name	Type	Details
in `callback`		A callback that handles logging events. This is called in a separate thread so access to shared data must be synchronized.
in `data`		An opaque data object passed to the callback.

void

cass_log_set_queue_size

( queue_size )

Sets the log queue size.

Note: This needs to be done before any call that might log, such as any of the cass_cluster_*() or cass_ssl_*() functions.

Default: 2048

Deprecated:

This is no longer useful and does nothing. Expect this to be removed in a few releases.

Parameters:

Name	Type	Details
in `queue_size`

const char *

cass_log_level_string

( log_level )

Gets the string for a log level.

Parameters:

Name	Type	Details
in `log_level`

Returns:

Type	Details
`const char *`	A null-terminated string for the log level. Example: “ERROR”, “WARN”, “INFO”, etc.

cass_uint32_t

cass_date_from_epoch

( epoch_secs )

Converts a unix timestamp (in seconds) to the Cassandra “date” type. The “date” type represents the number of days since the Epoch (1970-01-01) with the Epoch centered at the value 2^31.

Requires Cassandra: 2.2+

Parameters:

Name	Type	Details
in `epoch_secs`

Returns:

Type	Details
`cass_uint32_t`	the number of days since the date -5877641-06-23

cass_int64_t

cass_time_from_epoch

( epoch_secs )

Converts a unix timestamp (in seconds) to the Cassandra “time” type. The “time” type represents the number of nanoseconds since midnight (range 0 to 86399999999999).

Requires Cassandra: 2.2+

Parameters:

Name	Type	Details
in `epoch_secs`

Returns:

Type	Details
`cass_int64_t`	nanoseconds since midnight

cass_int64_t

cass_date_time_to_epoch

( date, time )

Combines the Cassandra “date” and “time” types to Epoch time in seconds.

Requires Cassandra: 2.2+

Parameters:

Name	Type	Details
in `date`
in `time`

Returns:

Type	Details
`cass_int64_t`	Epoch time in seconds. Negative times are possible if the date occurs before the Epoch (1970-1-1).

Contents

file cassandra.h

Macros

CASS_VERSION_MAJOR

CASS_VERSION_MINOR

CASS_VERSION_PATCH

CASS_VERSION_SUFFIX

CASS_INET_V4_LENGTH

CASS_INET_V6_LENGTH

CASS_INET_STRING_LENGTH

CASS_UUID_STRING_LENGTH

CASS_CONSISTENCY_MAP

CASS_WRITE_TYPE_MAP

CASS_LOG_MAX_MESSAGE_SIZE

Types

cass_float_t

cass_double_t

cass_int8_t

cass_uint8_t

cass_int16_t

cass_uint16_t

cass_int32_t

cass_uint32_t

cass_int64_t

cass_uint64_t

cass_byte_t

cass_duration_t

CassCluster

CassSession

CassStatement

CassBatch

CassFuture

CassPrepared

CassResult

CassErrorResult

CassIterator

CassRow

CassValue

CassDataType

CassFunctionMeta

CassAggregateMeta

CassCollection

CassTuple

CassUserType

CassSsl

CassSchemaMeta

CassKeyspaceMeta

CassTableMeta

CassMaterializedViewMeta

CassColumnMeta

CassIndexMeta

CassUuidGen

CassTimestampGen

CassRetryPolicy

CassCustomPayload

CassFutureCallback

CassLogCallback

Enums

cass_bool_t

CassConsistency

CassWriteType

CassColumnType

CassIndexType

CassValueType

CassClusteringOrder

CassCollectionType

CassBatchType

CassIteratorType

CassLogLevel

CassSslVerifyFlags

CassErrorSource

CassError

Functions

cass_data_type_type

cass_data_type_is_frozen

cass_data_type_type_name

cass_data_type_set_type_name

cass_data_type_keyspace

cass_data_type_set_keyspace

cass_data_type_class_name