Class ColumnFamily (2.9.0)

ColumnFamily(column_family_id, table, gc_rule=None)

Representation of a Google Cloud Bigtable Column Family.

We can use a ColumnFamily to:

create itself
update itself
delete itself

Parameters

Name	Description
`column_family_id`	`str` The ID of the column family. Must be of the form `<code>_a-zA-Z0-9][-_.a-zA-Z0-9]</code>*`.
`table`	`Table` The table that owns the column family.
`gc_rule`	`GarbageCollectionRule` (Optional) The garbage collection settings for this column family.

Properties

name

Column family name used in requests.

For example:

.. literalinclude:: snippets_table.py :start-after: [START bigtable_api_column_family_name] :end-before: [END bigtable_api_column_family_name] :dedent: 4

Note: This property will not change if column_family_id does not, but the return value is not cached.

"projects/../zones/../clusters/../tables/../columnFamilies/.."

Returns

Type	Description
`str`	The column family name.

Methods

create

create()

Create this column family.

For example:

.. literalinclude:: snippets_table.py :start-after: [START bigtable_api_create_column_family] :end-before: [END bigtable_api_create_column_family] :dedent: 4

delete

delete()

Delete this column family.

For example:

.. literalinclude:: snippets_table.py :start-after: [START bigtable_api_delete_column_family] :end-before: [END bigtable_api_delete_column_family] :dedent: 4

to_pb

to_pb()

Converts the column family to a protobuf.

Returns

Type	Description
`.table_v2_pb2.ColumnFamily`	The converted current object.

update

update()

Update this column family.

For example:

.. literalinclude:: snippets_table.py :start-after: [START bigtable_api_update_column_family] :end-before: [END bigtable_api_update_column_family] :dedent: 4