## Uses of Class
org.apache.cassandra.db.index.PerColumnSecondaryIndex

Packages that use PerColumnSecondaryIndex
org.apache.cassandra.db.index
org.apache.cassandra.db.index.composites
org.apache.cassandra.db.index.keys

### Uses of PerColumnSecondaryIndex in org.apache.cassandra.db.index

Subclasses of PerColumnSecondaryIndex in org.apache.cassandra.db.index
`class` `AbstractSimplePerColumnSecondaryIndex` Implements a secondary index for a column family using a second column family in which the row keys are indexed values, and column names are base row keys.

### Uses of PerColumnSecondaryIndex in org.apache.cassandra.db.index.composites

Subclasses of PerColumnSecondaryIndex in org.apache.cassandra.db.index.composites
`class` `CompositesIndex` Base class for secondary indexes where composites are involved.
`class` `CompositesIndexIncludingCollectionKey` Common superclass for indexes that capture collection keys, including indexes on such keys themselves.
`class` `CompositesIndexOnClusteringKey` Index on a CLUSTERING_COLUMN column definition.
`class` `CompositesIndexOnCollectionKey` Index on the collection element of the cell name of a collection.
`class` `CompositesIndexOnCollectionKeyAndValue` Index on the element and value of cells participating in a collection.
`class` `CompositesIndexOnCollectionValue` Index the value of a collection cell.
`class` `CompositesIndexOnPartitionKey` Index on a PARTITION_KEY column definition.
`class` `CompositesIndexOnRegular` Index on a REGULAR column definition on a composite type.

### Uses of PerColumnSecondaryIndex in org.apache.cassandra.db.index.keys

Subclasses of PerColumnSecondaryIndex in org.apache.cassandra.db.index.keys
`class` `KeysIndex` Implements a secondary index for a column family using a second column family.