net.yacy.kelondro.rwi

Class AbstractIndex<ReferenceType extends Reference>

java.lang.Object

net.yacy.kelondro.rwi.AbstractIndex<ReferenceType>

All Implemented Interfaces:

java.lang.Iterable<ReferenceContainer<ReferenceType>>, Index<ReferenceType>

Direct Known Subclasses:

AbstractBufferedIndex, ReferenceContainerCache

public abstract class AbstractIndex<ReferenceType extends Reference>
extends java.lang.Object
implements Index<ReferenceType>

Field Summary

Fields

Modifier and Type	Field and Description
protected ReferenceFactory<ReferenceType>	factory

Constructor Summary

Constructors

Constructor and Description
AbstractIndex(ReferenceFactory<ReferenceType> factory)

Method Summary

Methods

Modifier and Type	Method and Description
void	merge(Index<ReferenceType> otherIndex) merge this index with another index
TermSearch<ReferenceType>	query(HandleSet queryHashes, HandleSet excludeHashes, HandleSet urlselection, ReferenceFactory<ReferenceType> termFactory, int maxDistance)
Row	referenceRow() ask for the Row that is used to construct one reference
int	remove(HandleSet termHashes, byte[] urlHashBytes)
java.util.TreeMap<byte[],ReferenceContainer<ReferenceType>>	searchConjunction(HandleSet wordHashes, HandleSet urlselection) collect containers for given word hashes.

Methods inherited from class java.lang.Object

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

Methods inherited from interface net.yacy.kelondro.rwi.Index

add, add, clear, close, count, delete, get, has, minMem, referenceContainerIterator, referenceCountIterator, remove, remove, remove, removeDelayed, removeDelayed, size, termKeyLength, termKeyOrdering

Methods inherited from interface java.lang.Iterable

iterator

Field Detail

factory

protected final ReferenceFactory<ReferenceType extends Reference> factory

Constructor Detail

AbstractIndex

public AbstractIndex(ReferenceFactory<ReferenceType> factory)

Method Detail

merge

public void merge(Index<ReferenceType> otherIndex)
           throws java.io.IOException,
                  SpaceExceededException

merge this index with another index

Specified by:

merge in interface Index<ReferenceType extends Reference>

Parameters:

otherIndex -

Throws:

java.io.IOException

SpaceExceededException

remove

public int remove(HandleSet termHashes,
         byte[] urlHashBytes)
           throws java.io.IOException

Specified by:

remove in interface Index<ReferenceType extends Reference>

Throws:

java.io.IOException

searchConjunction

public java.util.TreeMap<byte[],ReferenceContainer<ReferenceType>> searchConjunction(HandleSet wordHashes,
                                                                            HandleSet urlselection)

collect containers for given word hashes. This collection stops if a single container does not contain any references. In that case only a empty result is returned.

Specified by:

searchConjunction in interface Index<ReferenceType extends Reference>

Parameters:

wordHashes -

urlselection -

Returns:

map of wordhash:indexContainer

query

public TermSearch<ReferenceType> query(HandleSet queryHashes,
                              HandleSet excludeHashes,
                              HandleSet urlselection,
                              ReferenceFactory<ReferenceType> termFactory,
                              int maxDistance)
                                                  throws SpaceExceededException

Throws:

SpaceExceededException

referenceRow

public Row referenceRow()

Description copied from interface: Index

ask for the Row that is used to construct one reference

Specified by:

referenceRow in interface Index<ReferenceType extends Reference>

Returns: