org.apache.cassandra.io.sstable

Class IndexHelper

java.lang.Object

org.apache.cassandra.io.sstable.IndexHelper

public final class IndexHelper
extends java.lang.Object

Provides helper to serialize, deserialize and use column indexes.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	IndexHelper.IndexInfo

Method Summary

Modifier and Type	Method and Description
static int	indexFor(ClusteringPrefix name, java.util.List<IndexHelper.IndexInfo> indexList, ClusteringComparator comparator, boolean reversed, int lastIndex) The index of the IndexInfo in which a scan starting with @name should begin.

Methods inherited from class java.lang.Object

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

Method Detail

indexFor

public static int indexFor(ClusteringPrefix name,
                           java.util.List<IndexHelper.IndexInfo> indexList,
                           ClusteringComparator comparator,
                           boolean reversed,
                           int lastIndex)

The index of the IndexInfo in which a scan starting with @name should begin.

Parameters:

name - name to search for

indexList - list of the indexInfo objects

comparator - the comparator to use

reversed - whether or not the search is reversed, i.e. we scan forward or backward from name

lastIndex - where to start the search from in indexList

Returns:

int index