Package org.basex.index.value

Class ValueIndex

java.lang.Object

org.basex.index.value.ValueIndex

All Implemented Interfaces:

Index

Direct Known Subclasses:

DiskValues, FTIndex, MemValues

public abstract class ValueIndex
extends Object
implements Index

Index for texts, attribute values and full-texts.

Author:

BaseX Team 2005-21, BSD License, Christian Gruen

Field Summary

Fields

Modifier and Type	Field	Description
protected final Data	data	Data instance.
protected final IndexType	type	Index type.

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	ValueIndex(Data data, IndexType type)	Constructor, initializing the index structure.

Method Summary

Modifier and Type	Method	Description
abstract void	add(ValueCache values)	Add entries to the index.
abstract void	delete(ValueCache values)	Deletes entries from the index.
abstract void	flush()	Flushes the buffered data.
abstract int	size()	Returns the number of index entries.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.basex.index.Index

close, costs, drop, entries, info, iter

Field Details

type

protected final IndexType type

Index type.

data

protected final Data data

Data instance.

Constructor Details

ValueIndex

protected ValueIndex(Data data,
 IndexType type)

Constructor, initializing the index structure.

Parameters:

data - data reference

type - index type

Method Details

size

public abstract int size()

Returns the number of index entries.

Returns:

number of index entries

delete

public abstract void delete(ValueCache values)

Deletes entries from the index.

Parameters:

values - value cache with [key, id-list] pairs

add

public abstract void add(ValueCache values)

Add entries to the index.

Parameters:

values - value cache with [key, id-list] pairs

flush

public abstract void flush()

Flushes the buffered data.