org.apache.cassandra.db.index.composites

Class CompositesIndexOnCollectionKey

java.lang.Object

org.apache.cassandra.db.index.SecondaryIndex

org.apache.cassandra.db.index.PerColumnSecondaryIndex

org.apache.cassandra.db.index.AbstractSimplePerColumnSecondaryIndex

org.apache.cassandra.db.index.composites.CompositesIndex

org.apache.cassandra.db.index.composites.CompositesIndexIncludingCollectionKey

org.apache.cassandra.db.index.composites.CompositesIndexOnCollectionKey

public class CompositesIndexOnCollectionKey
extends CompositesIndexIncludingCollectionKey

Index on the collection element of the cell name of a collection. The row keys for this index are given by the collection element for indexed columns.

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.cassandra.db.index.composites.CompositesIndex

CompositesIndex.IndexedEntry

Field Summary

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

columnDef, indexCfs

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

baseCfs, columnDefs, CUSTOM_INDEX_OPTION_NAME, INDEX_ENTRIES_OPTION_NAME, INDEX_KEYS_OPTION_NAME, INDEX_VALUES_OPTION_NAME, keyComparator, logger

Constructor Summary

Constructors

Constructor and Description
CompositesIndexOnCollectionKey()

Method Summary

Modifier and Type	Method and Description
protected java.nio.ByteBuffer	getIndexedValue(java.nio.ByteBuffer rowKey, Cell cell)
protected AbstractType<?>	getIndexKeyComparator()
boolean	isStale(CompositesIndex.IndexedEntry entry, ColumnFamily data, long now)
boolean	supportsOperator(Operator operator) Returns true if the index supports lookups for the given operator, false otherwise.

Methods inherited from class org.apache.cassandra.db.index.composites.CompositesIndexIncludingCollectionKey

buildIndexComparator, decodeEntry, indexes, makeIndexColumnPrefix

Methods inherited from class org.apache.cassandra.db.index.composites.CompositesIndex

create, createSecondaryIndexSearcher, delete, getExpressionComparator, getIndexComparator, getIndexComparator, makeIndexColumnName, validateOptions

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

delete, deleteForCleanup, estimateResultRows, expressionString, forceBlockingFlush, getIndexCfs, getIndexName, init, insert, invalidate, reload, removeIndex, truncateBlocking, update, validate

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

getNameForSystemKeyspace, validate

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

buildIndexAsync, buildIndexBlocking, createInstance, getBaseCfs, getColumnDefs, getIndexKeyFor, indexes, isIndexBuilt, setIndexBuilt, setIndexRemoved, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

CompositesIndexOnCollectionKey

public CompositesIndexOnCollectionKey()

Method Detail

getIndexKeyComparator

protected AbstractType<?> getIndexKeyComparator()

Overrides:

getIndexKeyComparator in class AbstractSimplePerColumnSecondaryIndex

getIndexedValue

protected java.nio.ByteBuffer getIndexedValue(java.nio.ByteBuffer rowKey,
                                              Cell cell)

Specified by:

getIndexedValue in class AbstractSimplePerColumnSecondaryIndex

supportsOperator

public boolean supportsOperator(Operator operator)

Description copied from class: SecondaryIndex

Returns true if the index supports lookups for the given operator, false otherwise.

Overrides:

supportsOperator in class SecondaryIndex

isStale

public boolean isStale(CompositesIndex.IndexedEntry entry,
                       ColumnFamily data,
                       long now)

Specified by:

isStale in class CompositesIndex