Package com.yahoo.search.predicate.index.conjunction

Class ConjunctionIndex

java.lang.Object

com.yahoo.search.predicate.index.conjunction.ConjunctionIndex

public class ConjunctionIndex
extends Object

A searchable index of conjunctions (see FeatureConjunction / IndexableFeatureConjunction). Implements the algorithm described in the paper Indexing Boolean Expressions.

Author:

Magnar Nedland, bjorncs

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	ConjunctionIndex.FeatureIndex
class	ConjunctionIndex.Searcher

Constructor Summary

Constructors

Constructor	Description
ConjunctionIndex(org.eclipse.collections.api.map.primitive.IntObjectMap<ConjunctionIndex.FeatureIndex> kIndex, int[] zList, long[] idMapping)

Method Summary

Modifier and Type	Method	Description
static ConjunctionIndex	fromInputStream(DataInputStream in)
ConjunctionIndex.Searcher	searcher()
void	writeToOutputStream(DataOutputStream out)

Methods inherited from class java.lang.Object

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

Constructor Details

ConjunctionIndex

public ConjunctionIndex(org.eclipse.collections.api.map.primitive.IntObjectMap<ConjunctionIndex.FeatureIndex> kIndex,
 int[] zList,
 long[] idMapping)

Method Details

searcher

public ConjunctionIndex.Searcher searcher()

writeToOutputStream

public void writeToOutputStream(DataOutputStream out)
                         throws IOException

Throws:

IOException

fromInputStream

public static ConjunctionIndex fromInputStream(DataInputStream in)
                                        throws IOException

Throws:

IOException