com.h3c.util.persistence.cassandra.index

Interface SecondaryIndexIntegrator.SecondaryIndexReader<C extends Serializable & Comparable<C>>

Type Parameters:

C - type of the column name in the secondary index column family (row key in the main column family or composite value when sorting information is included).

Enclosing class:

SecondaryIndexIntegrator

public static interface SecondaryIndexIntegrator.SecondaryIndexReader<C extends Serializable & Comparable<C>>

Secondary index reader. This reader encapsulates the result to be combined with other indexes.

Method Summary

Methods

Modifier and Type	Method and Description
long	count() Returns the size of the query for the particular index.
List<Column<C,?>>	read() Reads the index.
List<Column<C,?>>	read(List<ColumnName<C,?>> indexEntries) Reads the index entries.

Method Detail

count

long count()

Returns the size of the query for the particular index.

Returns:

the size of the query.

read

List<Column<C,?>> read()

Reads the index.

Returns:

the index content.

read

List<Column<C,?>> read(List<ColumnName<C,?>> indexEntries)

Reads the index entries.

Parameters:

indexEntries - index entries to read.

Returns:

the list of indexed columns with the denormalized data. Any entry that does not exist should not be included in the result.