Package com.orientechnologies.orient.core.storage.index.hashindex.local

Interface OHashTable<K,V>

All Known Implementing Classes:

LocalHashTableV2, OLocalHashTableV3

public interface OHashTable<K,V>

Created by lomak_000 on 15.04.2015.

Nested Class Summary

Nested Classes

Modifier and Type	Interface	Description
static final class	OHashTable.BucketPath
static final class	OHashTable.BucketSplitResult
static class	OHashTable.Entry<K,V>
static final class	OHashTable.KeyHashCodeComparator<K>
static final class	OHashTable.NodeSplitResult
static class	OHashTable.RawEntry

Method Summary

Modifier and Type	Method	Description
void	acquireAtomicExclusiveLock()	Acquires exclusive lock in the active atomic operation running on the current thread for this hash table.
OHashTable.Entry<K,V>[]	ceilingEntries(K key)
void	close()
void	create(OAtomicOperation atomicOperation, OBinarySerializer<K> keySerializer, OBinarySerializer<V> valueSerializer, OType[] keyTypes, OEncryption encryption, OHashFunction<K> keyHashFunction, boolean nullKeyIsSupported)
void	delete(OAtomicOperation atomicOperation)
OHashTable.Entry<K,V>	firstEntry()
OHashTable.Entry<K,V>[]	floorEntries(K key)
void	flush()
V	get(K key)
String	getName()
OHashTable.Entry<K,V>[]	higherEntries(K key)
OHashTable.Entry<K,V>[]	higherEntries(K key, int limit)
boolean	isNullKeyIsSupported()
OHashTable.Entry<K,V>	lastEntry()
void	load(String name, OType[] keyTypes, boolean nullKeyIsSupported, OEncryption encryption, OHashFunction<K> keyHashFunction, OBinarySerializer<K> keySerializer, OBinarySerializer<V> valueSerializer)
OHashTable.Entry<K,V>[]	lowerEntries(K key)
void	put(OAtomicOperation atomicOperation, K key, V value)
V	remove(OAtomicOperation atomicOperation, K key)
long	size()
boolean	validatedPut(OAtomicOperation atomicOperation, K key, V value, IndexEngineValidator<K,V> validator)	Puts the given value under the given key into this hash table.

Method Details

create

void create(OAtomicOperation atomicOperation,
 OBinarySerializer<K> keySerializer,
 OBinarySerializer<V> valueSerializer,
 OType[] keyTypes,
 OEncryption encryption,
 OHashFunction<K> keyHashFunction,
 boolean nullKeyIsSupported)
     throws IOException

Throws:

IOException

get

V get(K key)

validatedPut

boolean validatedPut(OAtomicOperation atomicOperation,
 K key,
 V value,
 IndexEngineValidator<K,V> validator)
              throws IOException

Puts the given value under the given key into this hash table. Validates the operation using the provided validator.

Parameters:

atomicOperation -

key - the key to put the value under.

value - the value to put.

validator - the operation validator.

Returns:

true if the validator allowed the put, false otherwise.

Throws:

IOException

See Also:

• IndexEngineValidator.validate(Object, Object, Object)

put

void put(OAtomicOperation atomicOperation,
 K key,
 V value)
  throws IOException

Throws:

IOException

remove

V remove(OAtomicOperation atomicOperation,
 K key)
  throws IOException

Throws:

IOException

higherEntries

OHashTable.Entry<K,V>[] higherEntries(K key)

higherEntries

OHashTable.Entry<K,V>[] higherEntries(K key,
 int limit)

load

void load(String name,
 OType[] keyTypes,
 boolean nullKeyIsSupported,
 OEncryption encryption,
 OHashFunction<K> keyHashFunction,
 OBinarySerializer<K> keySerializer,
 OBinarySerializer<V> valueSerializer)

ceilingEntries

OHashTable.Entry<K,V>[] ceilingEntries(K key)

firstEntry

OHashTable.Entry<K,V> firstEntry()

lastEntry

OHashTable.Entry<K,V> lastEntry()

lowerEntries

OHashTable.Entry<K,V>[] lowerEntries(K key)

floorEntries

OHashTable.Entry<K,V>[] floorEntries(K key)

size

long size()

close

void close()

delete

void delete(OAtomicOperation atomicOperation)
     throws IOException

Throws:

IOException

flush

void flush()

isNullKeyIsSupported

boolean isNullKeyIsSupported()

acquireAtomicExclusiveLock

void acquireAtomicExclusiveLock()

Acquires exclusive lock in the active atomic operation running on the current thread for this hash table.

getName

String getName()