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• Cassandra
• Cassandra.Client

C# 클래스 Apache.Cassandra.Cassandra.Client

파일 보기 프로젝트 열기: pchalamet/cassandra-sharp 1 사용 예제들

보호된 프로퍼티들

프로퍼티	타입	설명
iprot_	Thrift.Protocol.TProtocol
oprot_	Thrift.Protocol.TProtocol
seqid_	int

공개 메소드들

메소드	설명
Begin_add ( AsyncCallback callback, object state, byte key, ColumnParent column_parent, CounterColumn column, ConsistencyLevel consistency_level ) : IAsyncResult
Begin_atomic_batch_mutate ( AsyncCallback callback, object state, Dictionary mutation_map, ConsistencyLevel consistency_level ) : IAsyncResult
Begin_batch_mutate ( AsyncCallback callback, object state, Dictionary mutation_map, ConsistencyLevel consistency_level ) : IAsyncResult
Begin_describe_cluster_name ( AsyncCallback callback, object state ) : IAsyncResult
Begin_describe_keyspace ( AsyncCallback callback, object state, string keyspace ) : IAsyncResult
Begin_describe_keyspaces ( AsyncCallback callback, object state ) : IAsyncResult
Begin_describe_partitioner ( AsyncCallback callback, object state ) : IAsyncResult
Begin_describe_ring ( AsyncCallback callback, object state, string keyspace ) : IAsyncResult
Begin_describe_schema_versions ( AsyncCallback callback, object state ) : IAsyncResult
Begin_describe_snitch ( AsyncCallback callback, object state ) : IAsyncResult
Begin_describe_splits ( AsyncCallback callback, object state, string cfName, string start_token, string end_token, int keys_per_split ) : IAsyncResult
Begin_describe_splits_ex ( AsyncCallback callback, object state, string cfName, string start_token, string end_token, int keys_per_split ) : IAsyncResult
Begin_describe_token_map ( AsyncCallback callback, object state ) : IAsyncResult
Begin_describe_version ( AsyncCallback callback, object state ) : IAsyncResult
Begin_execute_cql3_query ( AsyncCallback callback, object state, byte query, Compression compression, ConsistencyLevel consistency ) : IAsyncResult
Begin_execute_cql_query ( AsyncCallback callback, object state, byte query, Compression compression ) : IAsyncResult
Begin_execute_prepared_cql3_query ( AsyncCallback callback, object state, int itemId, List values, ConsistencyLevel consistency ) : IAsyncResult
Begin_execute_prepared_cql_query ( AsyncCallback callback, object state, int itemId, List values ) : IAsyncResult
Begin_get ( AsyncCallback callback, object state, byte key, ColumnPath column_path, ConsistencyLevel consistency_level ) : IAsyncResult
Begin_get_count ( AsyncCallback callback, object state, byte key, ColumnParent column_parent, SlicePredicate predicate, ConsistencyLevel consistency_level ) : IAsyncResult
Begin_get_indexed_slices ( AsyncCallback callback, object state, ColumnParent column_parent, IndexClause index_clause, SlicePredicate column_predicate, ConsistencyLevel consistency_level ) : IAsyncResult
Begin_get_paged_slice ( AsyncCallback callback, object state, string column_family, KeyRange range, byte start_column, ConsistencyLevel consistency_level ) : IAsyncResult
Begin_get_range_slices ( AsyncCallback callback, object state, ColumnParent column_parent, SlicePredicate predicate, KeyRange range, ConsistencyLevel consistency_level ) : IAsyncResult
Begin_get_slice ( AsyncCallback callback, object state, byte key, ColumnParent column_parent, SlicePredicate predicate, ConsistencyLevel consistency_level ) : IAsyncResult
Begin_insert ( AsyncCallback callback, object state, byte key, ColumnParent column_parent, Column column, ConsistencyLevel consistency_level ) : IAsyncResult
Begin_login ( AsyncCallback callback, object state, AuthenticationRequest auth_request ) : IAsyncResult
Begin_multiget_count ( AsyncCallback callback, object state, List keys, ColumnParent column_parent, SlicePredicate predicate, ConsistencyLevel consistency_level ) : IAsyncResult
Begin_multiget_slice ( AsyncCallback callback, object state, List keys, ColumnParent column_parent, SlicePredicate predicate, ConsistencyLevel consistency_level ) : IAsyncResult
Begin_prepare_cql3_query ( AsyncCallback callback, object state, byte query, Compression compression ) : IAsyncResult
Begin_prepare_cql_query ( AsyncCallback callback, object state, byte query, Compression compression ) : IAsyncResult
Begin_remove ( AsyncCallback callback, object state, byte key, ColumnPath column_path, long timestamp, ConsistencyLevel consistency_level ) : IAsyncResult
Begin_remove_counter ( AsyncCallback callback, object state, byte key, ColumnPath path, ConsistencyLevel consistency_level ) : IAsyncResult
Begin_set_cql_version ( AsyncCallback callback, object state, string version ) : IAsyncResult
Begin_set_keyspace ( AsyncCallback callback, object state, string keyspace ) : IAsyncResult
Begin_system_add_column_family ( AsyncCallback callback, object state, CfDef cf_def ) : IAsyncResult
Begin_system_add_keyspace ( AsyncCallback callback, object state, KsDef ks_def ) : IAsyncResult
Begin_system_drop_column_family ( AsyncCallback callback, object state, string column_family ) : IAsyncResult
Begin_system_drop_keyspace ( AsyncCallback callback, object state, string keyspace ) : IAsyncResult
Begin_system_update_column_family ( AsyncCallback callback, object state, CfDef cf_def ) : IAsyncResult
Begin_system_update_keyspace ( AsyncCallback callback, object state, KsDef ks_def ) : IAsyncResult
Begin_trace_next_query ( AsyncCallback callback, object state ) : IAsyncResult
Begin_truncate ( AsyncCallback callback, object state, string cfname ) : IAsyncResult
Client ( TProtocol prot ) : System
Client ( TProtocol iprot, TProtocol oprot ) : System
End_add ( IAsyncResult asyncResult ) : void
End_atomic_batch_mutate ( IAsyncResult asyncResult ) : void
End_batch_mutate ( IAsyncResult asyncResult ) : void
End_describe_cluster_name ( IAsyncResult asyncResult ) : string
End_describe_keyspace ( IAsyncResult asyncResult ) : KsDef
End_describe_keyspaces ( IAsyncResult asyncResult ) : List
End_describe_partitioner ( IAsyncResult asyncResult ) : string
End_describe_ring ( IAsyncResult asyncResult ) : List
End_describe_schema_versions ( IAsyncResult asyncResult ) : List>.Dictionary
End_describe_snitch ( IAsyncResult asyncResult ) : string
End_describe_splits ( IAsyncResult asyncResult ) : List
End_describe_splits_ex ( IAsyncResult asyncResult ) : List
End_describe_token_map ( IAsyncResult asyncResult ) : string>.Dictionary
End_describe_version ( IAsyncResult asyncResult ) : string
End_execute_cql3_query ( IAsyncResult asyncResult ) : CqlResult
End_execute_cql_query ( IAsyncResult asyncResult ) : CqlResult
End_execute_prepared_cql3_query ( IAsyncResult asyncResult ) : CqlResult
End_execute_prepared_cql_query ( IAsyncResult asyncResult ) : CqlResult
End_get ( IAsyncResult asyncResult ) : ColumnOrSuperColumn
End_get_count ( IAsyncResult asyncResult ) : int
End_get_indexed_slices ( IAsyncResult asyncResult ) : List
End_get_paged_slice ( IAsyncResult asyncResult ) : List
End_get_range_slices ( IAsyncResult asyncResult ) : List
End_get_slice ( IAsyncResult asyncResult ) : List
End_insert ( IAsyncResult asyncResult ) : void
End_login ( IAsyncResult asyncResult ) : void
End_multiget_count ( IAsyncResult asyncResult ) : int>.Dictionary
End_multiget_slice ( IAsyncResult asyncResult ) : List>.Dictionary
End_prepare_cql3_query ( IAsyncResult asyncResult ) : CqlPreparedResult
End_prepare_cql_query ( IAsyncResult asyncResult ) : CqlPreparedResult
End_remove ( IAsyncResult asyncResult ) : void
End_remove_counter ( IAsyncResult asyncResult ) : void
End_set_cql_version ( IAsyncResult asyncResult ) : void
End_set_keyspace ( IAsyncResult asyncResult ) : void
End_system_add_column_family ( IAsyncResult asyncResult ) : string
End_system_add_keyspace ( IAsyncResult asyncResult ) : string
End_system_drop_column_family ( IAsyncResult asyncResult ) : string
End_system_drop_keyspace ( IAsyncResult asyncResult ) : string
End_system_update_column_family ( IAsyncResult asyncResult ) : string
End_system_update_keyspace ( IAsyncResult asyncResult ) : string
End_trace_next_query ( IAsyncResult asyncResult ) : byte[]
End_truncate ( IAsyncResult asyncResult ) : void
add ( byte key, ColumnParent column_parent, CounterColumn column, ConsistencyLevel consistency_level ) : void	Increment or decrement a counter.
atomic_batch_mutate ( Dictionary mutation_map, ConsistencyLevel consistency_level ) : void	Atomically mutate many columns or super columns for many row keys. See also: Mutation. mutation_map maps key to column family to a list of Mutation objects to take place at that scope. *
batch_mutate ( Dictionary mutation_map, ConsistencyLevel consistency_level ) : void	Mutate many columns or super columns for many row keys. See also: Mutation. mutation_map maps key to column family to a list of Mutation objects to take place at that scope. *
describe_cluster_name ( ) : string	get the cluster name
describe_keyspace ( string keyspace ) : KsDef	describe specified keyspace
describe_keyspaces ( ) : List	list the defined keyspaces in this cluster
describe_partitioner ( ) : string	returns the partitioner used by this cluster
describe_ring ( string keyspace ) : List	get the token ring: a map of ranges to host addresses, represented as a set of TokenRange instead of a map from range to list of endpoints, because you can't use Thrift structs as map keys: https://issues.apache.org/jira/browse/THRIFT-162 for the same reason, we can't return a set here, even though order is neither important nor predictable.
describe_schema_versions ( ) : List>.Dictionary	for each schema version present in the cluster, returns a list of nodes at that version. hosts that do not respond will be under the key DatabaseDescriptor.INITIAL_VERSION. the cluster is all on the same version if the size of the map is 1.
describe_snitch ( ) : string	returns the snitch used by this cluster
describe_splits ( string cfName, string start_token, string end_token, int keys_per_split ) : List	experimental API for hadoop/parallel query support. may change violently and without warning. returns list of token strings such that first subrange is (list[0], list[1]], next is (list[1], list[2]], etc.
describe_splits_ex ( string cfName, string start_token, string end_token, int keys_per_split ) : List
describe_token_map ( ) : string>.Dictionary	get the mapping between token->node ip without taking replication into consideration https://issues.apache.org/jira/browse/CASSANDRA-4092
describe_version ( ) : string	get the thrift api version
execute_cql3_query ( byte query, Compression compression, ConsistencyLevel consistency ) : CqlResult
execute_cql_query ( byte query, Compression compression ) : CqlResult	Executes a CQL (Cassandra Query Language) statement and returns a CqlResult containing the results.
execute_prepared_cql3_query ( int itemId, List values, ConsistencyLevel consistency ) : CqlResult
execute_prepared_cql_query ( int itemId, List values ) : CqlResult	Executes a prepared CQL (Cassandra Query Language) statement by passing an id token and a list of variables to bind and returns a CqlResult containing the results.
get ( byte key, ColumnPath column_path, ConsistencyLevel consistency_level ) : ColumnOrSuperColumn	Get the Column or SuperColumn at the given column_path. If no value is present, NotFoundException is thrown. (This is the only method that can throw an exception under non-failure conditions.)
get_count ( byte key, ColumnParent column_parent, SlicePredicate predicate, ConsistencyLevel consistency_level ) : int	returns the number of columns matching predicate for a particular key, ColumnFamily and optionally SuperColumn.
get_indexed_slices ( ColumnParent column_parent, IndexClause index_clause, SlicePredicate column_predicate, ConsistencyLevel consistency_level ) : List	Returns the subset of columns specified in SlicePredicate for the rows matching the IndexClause @deprecated use get_range_slices instead with range.row_filter specified
get_paged_slice ( string column_family, KeyRange range, byte start_column, ConsistencyLevel consistency_level ) : List	returns a range of columns, wrapping to the next rows if necessary to collect max_results.
get_range_slices ( ColumnParent column_parent, SlicePredicate predicate, KeyRange range, ConsistencyLevel consistency_level ) : List	returns a subset of columns for a contiguous range of keys.
get_slice ( byte key, ColumnParent column_parent, SlicePredicate predicate, ConsistencyLevel consistency_level ) : List	Get the group of columns contained by column_parent (either a ColumnFamily name or a ColumnFamily/SuperColumn name pair) specified by the given SlicePredicate. If no matching values are found, an empty list is returned.
insert ( byte key, ColumnParent column_parent, Column column, ConsistencyLevel consistency_level ) : void	Insert a Column at the given column_parent.column_family and optional column_parent.super_column.
login ( AuthenticationRequest auth_request ) : void
multiget_count ( List keys, ColumnParent column_parent, SlicePredicate predicate, ConsistencyLevel consistency_level ) : int>.Dictionary	Perform a get_count in parallel on the given list keys. The return value maps keys to the count found.
multiget_slice ( List keys, ColumnParent column_parent, SlicePredicate predicate, ConsistencyLevel consistency_level ) : List>.Dictionary	Performs a get_slice for column_parent and predicate for the given keys in parallel.
prepare_cql3_query ( byte query, Compression compression ) : CqlPreparedResult
prepare_cql_query ( byte query, Compression compression ) : CqlPreparedResult	Prepare a CQL (Cassandra Query Language) statement by compiling and returning - the type of CQL statement - an id token of the compiled CQL stored on the server side. - a count of the discovered bound markers in the statement
recv_add ( ) : void
recv_atomic_batch_mutate ( ) : void
recv_batch_mutate ( ) : void
recv_describe_cluster_name ( ) : string
recv_describe_keyspace ( ) : KsDef
recv_describe_keyspaces ( ) : List
recv_describe_partitioner ( ) : string
recv_describe_ring ( ) : List
recv_describe_schema_versions ( ) : List>.Dictionary
recv_describe_snitch ( ) : string
recv_describe_splits ( ) : List
recv_describe_splits_ex ( ) : List
recv_describe_token_map ( ) : string>.Dictionary
recv_describe_version ( ) : string
recv_execute_cql3_query ( ) : CqlResult
recv_execute_cql_query ( ) : CqlResult
recv_execute_prepared_cql3_query ( ) : CqlResult
recv_execute_prepared_cql_query ( ) : CqlResult
recv_get ( ) : ColumnOrSuperColumn
recv_get_count ( ) : int
recv_get_indexed_slices ( ) : List
recv_get_paged_slice ( ) : List
recv_get_range_slices ( ) : List
recv_get_slice ( ) : List
recv_insert ( ) : void
recv_login ( ) : void
recv_multiget_count ( ) : int>.Dictionary
recv_multiget_slice ( ) : List>.Dictionary
recv_prepare_cql3_query ( ) : CqlPreparedResult
recv_prepare_cql_query ( ) : CqlPreparedResult
recv_remove ( ) : void
recv_remove_counter ( ) : void
recv_set_cql_version ( ) : void
recv_set_keyspace ( ) : void
recv_system_add_column_family ( ) : string
recv_system_add_keyspace ( ) : string
recv_system_drop_column_family ( ) : string
recv_system_drop_keyspace ( ) : string
recv_system_update_column_family ( ) : string
recv_system_update_keyspace ( ) : string
recv_trace_next_query ( ) : byte[]
recv_truncate ( ) : void
remove ( byte key, ColumnPath column_path, long timestamp, ConsistencyLevel consistency_level ) : void	Remove data from the row specified by key at the granularity specified by column_path, and the given timestamp. Note that all the values in column_path besides column_path.column_family are truly optional: you can remove the entire row by just specifying the ColumnFamily, or you can remove a SuperColumn or a single Column by specifying those levels too.
remove_counter ( byte key, ColumnPath path, ConsistencyLevel consistency_level ) : void	Remove a counter at the specified location. Note that counters have limited support for deletes: if you remove a counter, you must wait to issue any following update until the delete has reached all the nodes and all of them have been fully compacted.
send_add ( AsyncCallback callback, object state, byte key, ColumnParent column_parent, CounterColumn column, ConsistencyLevel consistency_level ) : IAsyncResult
send_add ( byte key, ColumnParent column_parent, CounterColumn column, ConsistencyLevel consistency_level ) : void
send_atomic_batch_mutate ( AsyncCallback callback, object state, Dictionary mutation_map, ConsistencyLevel consistency_level ) : IAsyncResult
send_atomic_batch_mutate ( Dictionary mutation_map, ConsistencyLevel consistency_level ) : void
send_batch_mutate ( AsyncCallback callback, object state, Dictionary mutation_map, ConsistencyLevel consistency_level ) : IAsyncResult
send_batch_mutate ( Dictionary mutation_map, ConsistencyLevel consistency_level ) : void
send_describe_cluster_name ( AsyncCallback callback, object state ) : IAsyncResult
send_describe_cluster_name ( ) : void
send_describe_keyspace ( AsyncCallback callback, object state, string keyspace ) : IAsyncResult
send_describe_keyspace ( string keyspace ) : void
send_describe_keyspaces ( AsyncCallback callback, object state ) : IAsyncResult
send_describe_keyspaces ( ) : void
send_describe_partitioner ( AsyncCallback callback, object state ) : IAsyncResult
send_describe_partitioner ( ) : void
send_describe_ring ( AsyncCallback callback, object state, string keyspace ) : IAsyncResult
send_describe_ring ( string keyspace ) : void
send_describe_schema_versions ( AsyncCallback callback, object state ) : IAsyncResult
send_describe_schema_versions ( ) : void
send_describe_snitch ( AsyncCallback callback, object state ) : IAsyncResult
send_describe_snitch ( ) : void
send_describe_splits ( AsyncCallback callback, object state, string cfName, string start_token, string end_token, int keys_per_split ) : IAsyncResult
send_describe_splits ( string cfName, string start_token, string end_token, int keys_per_split ) : void
send_describe_splits_ex ( AsyncCallback callback, object state, string cfName, string start_token, string end_token, int keys_per_split ) : IAsyncResult
send_describe_splits_ex ( string cfName, string start_token, string end_token, int keys_per_split ) : void
send_describe_token_map ( AsyncCallback callback, object state ) : IAsyncResult
send_describe_token_map ( ) : void
send_describe_version ( AsyncCallback callback, object state ) : IAsyncResult
send_describe_version ( ) : void
send_execute_cql3_query ( AsyncCallback callback, object state, byte query, Compression compression, ConsistencyLevel consistency ) : IAsyncResult
send_execute_cql3_query ( byte query, Compression compression, ConsistencyLevel consistency ) : void
send_execute_cql_query ( AsyncCallback callback, object state, byte query, Compression compression ) : IAsyncResult
send_execute_cql_query ( byte query, Compression compression ) : void
send_execute_prepared_cql3_query ( AsyncCallback callback, object state, int itemId, List values, ConsistencyLevel consistency ) : IAsyncResult
send_execute_prepared_cql3_query ( int itemId, List values, ConsistencyLevel consistency ) : void
send_execute_prepared_cql_query ( AsyncCallback callback, object state, int itemId, List values ) : IAsyncResult
send_execute_prepared_cql_query ( int itemId, List values ) : void
send_get ( AsyncCallback callback, object state, byte key, ColumnPath column_path, ConsistencyLevel consistency_level ) : IAsyncResult
send_get ( byte key, ColumnPath column_path, ConsistencyLevel consistency_level ) : void
send_get_count ( AsyncCallback callback, object state, byte key, ColumnParent column_parent, SlicePredicate predicate, ConsistencyLevel consistency_level ) : IAsyncResult
send_get_count ( byte key, ColumnParent column_parent, SlicePredicate predicate, ConsistencyLevel consistency_level ) : void
send_get_indexed_slices ( AsyncCallback callback, object state, ColumnParent column_parent, IndexClause index_clause, SlicePredicate column_predicate, ConsistencyLevel consistency_level ) : IAsyncResult
send_get_indexed_slices ( ColumnParent column_parent, IndexClause index_clause, SlicePredicate column_predicate, ConsistencyLevel consistency_level ) : void
send_get_paged_slice ( AsyncCallback callback, object state, string column_family, KeyRange range, byte start_column, ConsistencyLevel consistency_level ) : IAsyncResult
send_get_paged_slice ( string column_family, KeyRange range, byte start_column, ConsistencyLevel consistency_level ) : void
send_get_range_slices ( AsyncCallback callback, object state, ColumnParent column_parent, SlicePredicate predicate, KeyRange range, ConsistencyLevel consistency_level ) : IAsyncResult
send_get_range_slices ( ColumnParent column_parent, SlicePredicate predicate, KeyRange range, ConsistencyLevel consistency_level ) : void
send_get_slice ( AsyncCallback callback, object state, byte key, ColumnParent column_parent, SlicePredicate predicate, ConsistencyLevel consistency_level ) : IAsyncResult
send_get_slice ( byte key, ColumnParent column_parent, SlicePredicate predicate, ConsistencyLevel consistency_level ) : void
send_insert ( AsyncCallback callback, object state, byte key, ColumnParent column_parent, Column column, ConsistencyLevel consistency_level ) : IAsyncResult
send_insert ( byte key, ColumnParent column_parent, Column column, ConsistencyLevel consistency_level ) : void
send_login ( AsyncCallback callback, object state, AuthenticationRequest auth_request ) : IAsyncResult
send_login ( AuthenticationRequest auth_request ) : void
send_multiget_count ( AsyncCallback callback, object state, List keys, ColumnParent column_parent, SlicePredicate predicate, ConsistencyLevel consistency_level ) : IAsyncResult
send_multiget_count ( List keys, ColumnParent column_parent, SlicePredicate predicate, ConsistencyLevel consistency_level ) : void
send_multiget_slice ( AsyncCallback callback, object state, List keys, ColumnParent column_parent, SlicePredicate predicate, ConsistencyLevel consistency_level ) : IAsyncResult
send_multiget_slice ( List keys, ColumnParent column_parent, SlicePredicate predicate, ConsistencyLevel consistency_level ) : void
send_prepare_cql3_query ( AsyncCallback callback, object state, byte query, Compression compression ) : IAsyncResult
send_prepare_cql3_query ( byte query, Compression compression ) : void
send_prepare_cql_query ( AsyncCallback callback, object state, byte query, Compression compression ) : IAsyncResult
send_prepare_cql_query ( byte query, Compression compression ) : void
send_remove ( AsyncCallback callback, object state, byte key, ColumnPath column_path, long timestamp, ConsistencyLevel consistency_level ) : IAsyncResult
send_remove ( byte key, ColumnPath column_path, long timestamp, ConsistencyLevel consistency_level ) : void
send_remove_counter ( AsyncCallback callback, object state, byte key, ColumnPath path, ConsistencyLevel consistency_level ) : IAsyncResult
send_remove_counter ( byte key, ColumnPath path, ConsistencyLevel consistency_level ) : void
send_set_cql_version ( AsyncCallback callback, object state, string version ) : IAsyncResult
send_set_cql_version ( string version ) : void
send_set_keyspace ( AsyncCallback callback, object state, string keyspace ) : IAsyncResult
send_set_keyspace ( string keyspace ) : void
send_system_add_column_family ( AsyncCallback callback, object state, CfDef cf_def ) : IAsyncResult
send_system_add_column_family ( CfDef cf_def ) : void
send_system_add_keyspace ( AsyncCallback callback, object state, KsDef ks_def ) : IAsyncResult
send_system_add_keyspace ( KsDef ks_def ) : void
send_system_drop_column_family ( AsyncCallback callback, object state, string column_family ) : IAsyncResult
send_system_drop_column_family ( string column_family ) : void
send_system_drop_keyspace ( AsyncCallback callback, object state, string keyspace ) : IAsyncResult
send_system_drop_keyspace ( string keyspace ) : void
send_system_update_column_family ( AsyncCallback callback, object state, CfDef cf_def ) : IAsyncResult
send_system_update_column_family ( CfDef cf_def ) : void
send_system_update_keyspace ( AsyncCallback callback, object state, KsDef ks_def ) : IAsyncResult
send_system_update_keyspace ( KsDef ks_def ) : void
send_trace_next_query ( AsyncCallback callback, object state ) : IAsyncResult
send_trace_next_query ( ) : void
send_truncate ( AsyncCallback callback, object state, string cfname ) : IAsyncResult
send_truncate ( string cfname ) : void
set_cql_version ( string version ) : void	@deprecated This is now a no-op. Please use the CQL3 specific methods instead.
set_keyspace ( string keyspace ) : void
system_add_column_family ( CfDef cf_def ) : string	adds a column family. returns the new schema id.
system_add_keyspace ( KsDef ks_def ) : string	adds a keyspace and any column families that are part of it. returns the new schema id.
system_drop_column_family ( string column_family ) : string	drops a column family. returns the new schema id.
system_drop_keyspace ( string keyspace ) : string	drops a keyspace and any column families that are part of it. returns the new schema id.
system_update_column_family ( CfDef cf_def ) : string	updates properties of a column family. returns the new schema id.
system_update_keyspace ( KsDef ks_def ) : string	updates properties of a keyspace. returns the new schema id.
trace_next_query ( ) : byte[]	Enables tracing for the next query in this connection and returns the UUID for that trace session The next query will be traced idependently of trace probability and the returned UUID can be used to query the trace keyspace
truncate ( string cfname ) : void	Truncate will mark and entire column family as deleted. From the user's perspective a successful call to truncate will result complete data deletion from cfname. Internally, however, disk space will not be immediatily released, as with all deletes in cassandra, this one only marks the data as deleted. The operation succeeds only if all hosts in the cluster at available and will throw an UnavailableException if some hosts are down.

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