org.apache.cassandra.db.index

Class SecondaryIndexSearcher

java.lang.Object

org.apache.cassandra.db.index.SecondaryIndexSearcher

Direct Known Subclasses:

CompositesSearcher, KeysSearcher

public abstract class SecondaryIndexSearcher
extends java.lang.Object

Field Summary

Fields

Modifier and Type	Field and Description
protected ColumnFamilyStore	baseCfs
protected java.util.Set<java.nio.ByteBuffer>	columns
protected SecondaryIndexManager	indexManager

Constructor Summary

Constructors

Constructor and Description
SecondaryIndexSearcher(SecondaryIndexManager indexManager, java.util.Set<java.nio.ByteBuffer> columns)

Method Summary

Methods

Modifier and Type	Method and Description
protected org.apache.cassandra.thrift.IndexExpression	highestSelectivityPredicate(java.util.List<org.apache.cassandra.thrift.IndexExpression> clause)
boolean	isIndexing(java.util.List<org.apache.cassandra.thrift.IndexExpression> clause)
abstract java.util.List<Row>	search(ExtendedFilter filter)

Methods inherited from class java.lang.Object

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

Field Detail

indexManager

protected final SecondaryIndexManager indexManager

columns

protected final java.util.Set<java.nio.ByteBuffer> columns

baseCfs

protected final ColumnFamilyStore baseCfs

Constructor Detail

SecondaryIndexSearcher

public SecondaryIndexSearcher(SecondaryIndexManager indexManager,
                      java.util.Set<java.nio.ByteBuffer> columns)

Method Detail

search

public abstract java.util.List<Row> search(ExtendedFilter filter)

isIndexing

public boolean isIndexing(java.util.List<org.apache.cassandra.thrift.IndexExpression> clause)

Returns:

true this index is able to handle given clauses.

highestSelectivityPredicate

protected org.apache.cassandra.thrift.IndexExpression highestSelectivityPredicate(java.util.List<org.apache.cassandra.thrift.IndexExpression> clause)