org.bluedb.disk.collection.index

Class BlueIndexOnDisk<I extends ValueKey,T extends java.io.Serializable>

java.lang.Object

org.bluedb.disk.collection.index.BlueIndexOnDisk<I,T>

All Implemented Interfaces:

BlueIndex<I,T>, Rollupable

public class BlueIndexOnDisk<I extends ValueKey,T extends java.io.Serializable>
extends java.lang.Object
implements BlueIndex<I,T>, Rollupable

Method Summary

Modifier and Type	Method and Description
void	add(BlueKey key, T newItem)
void	add(java.util.Collection<IndividualChange<T>> changes)
void	addEntities(java.util.Collection<BlueEntity<T>> entities)
static <K extends ValueKey,T extends java.io.Serializable> BlueIndexOnDisk<K,T>	createNew(BlueCollectionOnDisk<T> collection, java.nio.file.Path indexPath, KeyExtractor<K,T> keyExtractor)
protected static SegmentSizeSetting	determineSegmentSize(java.lang.Class<? extends BlueKey> keyType)
static <K extends ValueKey,T extends java.io.Serializable> BlueIndexOnDisk<K,T>	fromExisting(BlueCollectionOnDisk<T> collection, java.nio.file.Path indexPath)
java.util.List<T>	get(I key)
java.util.List<BlueKey>	getKeys(I key)
I	getLastKey()
SegmentManager<BlueKey>	getSegmentManager()
java.lang.Class<I>	getType()
void	remove(BlueKey key, T oldItem)
void	reportReads(java.util.List<RollupTarget> rollupTargets)
void	reportWrites(java.util.List<RollupTarget> rollupTargets)
void	rollup(Range range)

Methods inherited from class java.lang.Object

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

Method Detail

createNew

public static <K extends ValueKey,T extends java.io.Serializable> BlueIndexOnDisk<K,T> createNew(BlueCollectionOnDisk<T> collection,
                                                                                                 java.nio.file.Path indexPath,
                                                                                                 KeyExtractor<K,T> keyExtractor)
                                                                                          throws BlueDbException

Throws:

BlueDbException

fromExisting

public static <K extends ValueKey,T extends java.io.Serializable> BlueIndexOnDisk<K,T> fromExisting(BlueCollectionOnDisk<T> collection,
                                                                                                    java.nio.file.Path indexPath)
                                                                                             throws BlueDbException

Throws:

BlueDbException

getType

public java.lang.Class<I> getType()

determineSegmentSize

protected static SegmentSizeSetting determineSegmentSize(java.lang.Class<? extends BlueKey> keyType)
                                                  throws BlueDbException

Throws:

BlueDbException

add

public void add(BlueKey key,
                T newItem)
         throws BlueDbException

Throws:

BlueDbException

addEntities

public void addEntities(java.util.Collection<BlueEntity<T>> entities)
                 throws BlueDbException

Throws:

BlueDbException

add

public void add(java.util.Collection<IndividualChange<T>> changes)
         throws BlueDbException

Throws:

BlueDbException

remove

public void remove(BlueKey key,
                   T oldItem)
            throws BlueDbException

Throws:

BlueDbException

get

public java.util.List<T> get(I key)
                      throws BlueDbException

Specified by:

get in interface BlueIndex<I extends ValueKey,T extends java.io.Serializable>

Parameters:

key - a key that maps to the desired value(s)

Returns:

all the values in the collection for the given index key

Throws:

BlueDbException - if any problems occur

getKeys

public java.util.List<BlueKey> getKeys(I key)

rollup

public void rollup(Range range)
            throws BlueDbException

Throws:

BlueDbException

getSegmentManager

public SegmentManager<BlueKey> getSegmentManager()

reportReads

public void reportReads(java.util.List<RollupTarget> rollupTargets)

Specified by:

reportReads in interface Rollupable

reportWrites

public void reportWrites(java.util.List<RollupTarget> rollupTargets)

Specified by:

reportWrites in interface Rollupable

getLastKey

public I getLastKey()

Specified by:

getLastKey in interface BlueIndex<I extends ValueKey,T extends java.io.Serializable>

Returns:

the index key with the highest grouping number