lsst.dax.apdb.cassandra.config.ApdbCassandraTimePartitionRange Class Reference

Inheritance diagram for lsst.dax.apdb.cassandra.config.ApdbCassandraTimePartitionRange:

Public Member Functions
Iterator[int]	range (self)
Self	from_meta (cls, ApdbMetadataCassandra metadata)
None	save_to_meta (self, ApdbMetadataCassandra metadata)

Static Public Attributes
ClassVar	metadataTimePartitionKey = "config:time-partition-range.json"
int	start
int	end

Detailed Description

Configuration of the time partitions, this is not user-configurable,
but it is reflected in metadata.

Member Function Documentation

from_meta()

Self lsst.dax.apdb.cassandra.config.ApdbCassandraTimePartitionRange.from_meta	(		cls,
		ApdbMetadataCassandra	metadata )

Read this configuration object from metadata table.

Parameters
----------
metadata : `ApdbMetadataCassandra`
    Metadata table.

Returns
-------
range : `ApdbCassandraTimePartitionRange`
    Configuration retrieved from database.

range()

Iterator[int] lsst.dax.apdb.cassandra.config.ApdbCassandraTimePartitionRange.range

(

self

)

Generate a sequence of partition numbers.

save_to_meta()

None lsst.dax.apdb.cassandra.config.ApdbCassandraTimePartitionRange.save_to_meta	(		self,
		ApdbMetadataCassandra	metadata )

Save this configuration to metadata table.

Parameters
----------
metadata : `ApdbMetadataCassandra`
    Metadata table.

Member Data Documentation

end

int lsst.dax.apdb.cassandra.config.ApdbCassandraTimePartitionRange.end

static

Initial value:

=  Field(
        description="End partition number (inclusive) for per-time-partition tables that exist in the schema."
    )

start

lsst.dax.apdb.cassandra.config.ApdbCassandraTimePartitionRange.start

static

Initial value:

=  Field(
        description="Start partition number for per-time-partition tables that exist in the schema."
    )

---

The documentation for this class was generated from the following file:

• python/lsst/dax/apdb/cassandra/config.py