CassSchemaMeta¶

struct CassSchemaMeta¶

A snapshot of the schema’s metadata.

Public Functions

void cass_schema_meta_free(const CassSchemaMeta *schema_meta)¶

Frees a schema metadata instance.

Parameters:

schema_meta – [in]

cass_uint32_t cass_schema_meta_snapshot_version(const CassSchemaMeta *schema_meta)¶

Gets the version of the schema metadata snapshot.

Parameters:

schema_meta – [in]

Returns:

The snapshot version.

CassVersion cass_schema_meta_version(const CassSchemaMeta *schema_meta)¶

Gets the version of the connected Cassandra cluster.

Parameters:

schema_meta – [in]

Returns:

Cassandra’s version

const CassKeyspaceMeta *cass_schema_meta_keyspace_by_name(const CassSchemaMeta *schema_meta, const char *keyspace)¶

Gets the keyspace metadata for the provided keyspace name.

Parameters:

• schema_meta – [in]

• keyspace – [in]

Returns:

The metadata for a keyspace. NULL if keyspace does not exist.

const CassKeyspaceMeta *cass_schema_meta_keyspace_by_name_n(const CassSchemaMeta *schema_meta, const char *keyspace, size_t keyspace_length)¶

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

See also

cass_schema_meta_keyspace_by_name()

Parameters:

• schema_meta – [in]

• keyspace – [in]

• keyspace_length – [in]

Returns:

same as cass_schema_meta_keyspace_by_name()

CassIterator *cass_iterator_keyspaces_from_schema_meta(const CassSchemaMeta *schema_meta)¶

Creates a new iterator for the specified schema metadata. This can be used to iterate over keyspace.

See also

cass_iterator_get_keyspace_meta()

See also

cass_iterator_free()

Parameters:

schema_meta – [in]

Returns:

A new iterator that must be freed.