org.apache.cassandra.index.internal

Class CassandraIndexSearcher

java.lang.Object

org.apache.cassandra.index.internal.CassandraIndexSearcher

All Implemented Interfaces:

Index.Searcher

Direct Known Subclasses:

CompositesSearcher, KeysSearcher

public abstract class CassandraIndexSearcher
extends java.lang.Object
implements Index.Searcher

Field Summary

Fields

Modifier and Type	Field and Description
protected ReadCommand	command
protected CassandraIndex	index

Constructor Summary

Constructors

Constructor and Description
CassandraIndexSearcher(ReadCommand command, RowFilter.Expression expression, CassandraIndex index)

Method Summary

Modifier and Type	Method and Description
protected Clustering<?>	makeIndexClustering(java.nio.ByteBuffer rowKey, Clustering<?> clustering)
protected abstract UnfilteredPartitionIterator	queryDataFromIndex(DecoratedKey indexKey, RowIterator indexHits, ReadCommand command, ReadExecutionController executionController)
UnfilteredPartitionIterator	search(ReadExecutionController executionController)

Methods inherited from class java.lang.Object

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

Field Detail

index

protected final CassandraIndex index

command

protected final ReadCommand command

Constructor Detail

CassandraIndexSearcher

public CassandraIndexSearcher(ReadCommand command,
                              RowFilter.Expression expression,
                              CassandraIndex index)

Method Detail

search

public UnfilteredPartitionIterator search(ReadExecutionController executionController)

Specified by:

search in interface Index.Searcher

Parameters:

executionController - the collection of OpOrder.Groups which the ReadCommand is being performed under.

Returns:

partitions from the base table matching the criteria of the search.

makeIndexClustering

protected Clustering<?> makeIndexClustering(java.nio.ByteBuffer rowKey,
                                            Clustering<?> clustering)

queryDataFromIndex

protected abstract UnfilteredPartitionIterator queryDataFromIndex(DecoratedKey indexKey,
                                                                  RowIterator indexHits,
                                                                  ReadCommand command,
                                                                  ReadExecutionController executionController)