org.apache.cassandra.db.index
Class PerRowSecondaryIndex

java.lang.Object
  org.apache.cassandra.db.index.SecondaryIndex
      org.apache.cassandra.db.index.PerRowSecondaryIndex

public abstract class PerRowSecondaryIndex
extends SecondaryIndex

Base class for Secondary indexes that implement a unique index per row

Field Summary

Fields inherited from class org.apache.cassandra.db.index.SecondaryIndex

baseCfs, columnDefs, CUSTOM_INDEX_OPTION_NAME, logger

Constructor Summary

PerRowSecondaryIndex()

Method Summary

abstract void	delete(DecoratedKey key) cleans up deleted columns from cassandra cleanup compaction
java.lang.String	getNameForSystemTable(java.nio.ByteBuffer columnName) Return the unique name for this index and column to be stored in the SystemTable that tracks if each column is built
abstract void	index(java.nio.ByteBuffer rowKey) Index the given row
abstract void	index(java.nio.ByteBuffer rowKey, ColumnFamily cf) Index the given row for new index creation.
boolean	validate(org.apache.cassandra.thrift.Column column)

Methods inherited from class org.apache.cassandra.db.index.SecondaryIndex

buildIndexAsync, buildIndexBlocking, createInstance, createSecondaryIndexSearcher, forceBlockingFlush, getBaseCfs, getColumnDefs, getIndexCfs, getIndexComparator, getIndexKeyFor, getIndexName, getLiveSize, indexes, init, invalidate, isIndexBuilt, reload, removeIndex, setIndexBuilt, setIndexRemoved, truncate, validateOptions

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

PerRowSecondaryIndex

public PerRowSecondaryIndex()

Method Detail

index

public abstract void index(java.nio.ByteBuffer rowKey,
                           ColumnFamily cf)

Index the given row for new index creation. @param cf will represent the entire row.

Parameters:

rowKey - the row key

cf - the current rows data

index

public abstract void index(java.nio.ByteBuffer rowKey)

Index the given row

Parameters:

rowKey - the row key

delete

public abstract void delete(DecoratedKey key)

cleans up deleted columns from cassandra cleanup compaction

Parameters:

key -

getNameForSystemTable

public java.lang.String getNameForSystemTable(java.nio.ByteBuffer columnName)

Description copied from class: SecondaryIndex

Return the unique name for this index and column to be stored in the SystemTable that tracks if each column is built

Specified by:

getNameForSystemTable in class SecondaryIndex

Parameters:

columnName - the name of the column

Returns:

the unique name

validate

public boolean validate(org.apache.cassandra.thrift.Column column)

Specified by:

validate in class SecondaryIndex