Uses of Interface
org.mapdb.Engine

Uses of Engine in org.mapdb

Classes in org.mapdb that implement Engine

class	AsyncWriteEngine Engine wrapper which provides asynchronous serialization and asynchronous write.
static class	Caches.HardRef Cache created objects using hard reference.
static class	Caches.HashTable Fixed size cache which uses hash table.
static class	Caches.LRU Least Recently Used cache.
static class	Caches.WeakSoftRef Instance cache which uses SoftReference or WeakReference Items can be removed from cache by Garbage Collector if
class	EngineWrapper EngineWrapper adapter.
static class	EngineWrapper.CloseOnJVMShutdown Closes Engine on JVM shutdown using shutdown hook: Runtime.addShutdownHook(Thread) If engine was closed by user before JVM shutdown, hook is removed to save memory.
static class	EngineWrapper.ImmutabilityCheckEngine check if Record Instances were not modified while in cache.
static class	EngineWrapper.ReadOnlyEngine Wraps an Engine and throws UnsupportedOperationException("Read-only") on any modification attempt.
static class	EngineWrapper.SerializerCheckEngineWrapper Checks that Serializer used to serialize item is the same as Serializer used to deserialize it
static class	EngineWrapper.SynchronizedEngineWrapper Engine wrapper with all methods synchronized on global lock, useful to diagnose concurrency issues.
class	Store Low level record store.
class	StoreDirect Storage Engine which saves record directly into file.
class	StoreHeap Store which keeps all instances on heap.
class	StoreWAL Write-Ahead-Log
class	TxEngine Naive implementation of Snapshots on top of StorageEngine.
class	TxEngine.Tx

Fields in org.mapdb declared as Engine

static Engine	EngineWrapper.CLOSED throws `IllegalArgumentError("already closed)` on all access
protected Engine	TxMaker.engine parent engine under which modifications are stored
protected Engine	BTreeMap.engine DB Engine in which entries are persisted
protected Engine	Queues.SimpleQueue.engine
protected Engine	HTreeMap.engine
protected Engine	Atomic.Integer.engine
protected Engine	Atomic.Long.engine
protected Engine	Atomic.Boolean.engine
protected Engine	Atomic.String.engine
protected Engine	Atomic.Var.engine
protected Engine	DB.engine Engine which provides persistence for this DB

Methods in org.mapdb that return Engine

static Engine	TxEngine.createSnapshotFor(Engine engine)
protected Engine	DBMaker.extendAsyncWriteEngine(Engine engine)
protected Engine	DBMaker.extendCacheHardRef(Engine engine)
protected Engine	DBMaker.extendCacheHashTable(Engine engine)
protected Engine	DBMaker.extendCacheLRU(Engine engine)
protected Engine	DBMaker.extendCacheSoftRef(Engine engine)
protected Engine	DBMaker.extendCacheWeakRef(Engine engine)
protected Engine	DBMaker.extendHeapStore()
protected Engine	DBMaker.extendSnapshotEngine(Engine engine)
protected Engine	DBMaker.extendStoreAppend()
protected Engine	DBMaker.extendStoreDirect(Volume.Factory folFac)
protected Engine	DBMaker.extendStoreWAL(Volume.Factory folFac)
protected Engine	DBMaker.extendWrapCache(Engine engine)
protected Engine	DBMaker.extendWrapSnapshotEngine(Engine engine)
protected Engine	DBMaker.extendWrapStore(Engine engine)
Engine	BTreeMap.getEngine()
Engine	HTreeMap.getEngine()
Engine	DB.getEngine()
protected Engine	SerializerBase.getEngine()
protected Engine	SerializerPojo.getEngine()
Engine	TxEngine.Tx.getWrappedEngine()
Engine	EngineWrapper.getWrappedEngine()
Engine	DBMaker.makeEngine() constructs Engine using current settings
Engine	TxEngine.snapshot()
Engine	TxEngine.Tx.snapshot()
Engine	Engine.snapshot() Returns read-only snapshot of data in Engine.
Engine	EngineWrapper.snapshot()
Engine	EngineWrapper.ReadOnlyEngine.snapshot()
Engine	EngineWrapper.SynchronizedEngineWrapper.snapshot()
Engine	Store.snapshot()

Methods in org.mapdb with parameters of type Engine

static <E,K,V> long	Pump.buildTreeMap(Iterator<E> source, Engine engine, Fun.Function1<K,E> keyExtractor, Fun.Function1<V,E> valueExtractor, boolean ignoreDuplicates, int nodeSize, boolean valuesStoredOutsideNodes, long counterRecid, BTreeKeySerializer<K> keySerializer, Serializer<V> valueSerializer, Comparator comparator) Build BTreeMap (or TreeSet) from presorted data.
protected static long	BTreeMap.createRootRef(Engine engine, BTreeKeySerializer keySer, Serializer valueSer, Comparator comparator, int numberOfNodeMetas) creates empty root node and returns recid of its reference
static Engine	TxEngine.createSnapshotFor(Engine engine)
protected Engine	DBMaker.extendAsyncWriteEngine(Engine engine)
protected Engine	DBMaker.extendCacheHardRef(Engine engine)
protected Engine	DBMaker.extendCacheHashTable(Engine engine)
protected Engine	DBMaker.extendCacheLRU(Engine engine)
protected Engine	DBMaker.extendCacheSoftRef(Engine engine)
protected Engine	DBMaker.extendCacheWeakRef(Engine engine)
protected Engine	DBMaker.extendSnapshotEngine(Engine engine)
protected Engine	DBMaker.extendWrapCache(Engine engine)
protected Engine	DBMaker.extendWrapSnapshotEngine(Engine engine)
protected Engine	DBMaker.extendWrapStore(Engine engine)
static Store	Store.forEngine(Engine e) traverses EngineWrappers and returns underlying Store
protected static long[]	HTreeMap.preallocateSegments(Engine engine)
void	SerializerPojo.save(Engine e)

Constructors in org.mapdb with parameters of type Engine

AsyncWriteEngine(Engine engine)

AsyncWriteEngine(Engine engine, int _asyncFlushDelay, int queueSize, Executor executor)
Construct new class and starts background threads.

Atomic.Boolean(Engine engine, long recid)

Atomic.Integer(Engine engine, long recid)

Atomic.Long(Engine engine, long recid)

Atomic.String(Engine engine, long recid)

Atomic.Var(Engine engine, long recid, Serializer<E> serializer)

Atomic.Var(Engine engine, SerializerBase serializerBase, DataInput is, SerializerBase.FastArrayList<Object> objectStack)
used for deserialization

BTreeMap(Engine engine, long rootRecidRef, int maxNodeSize, boolean valsOutsideNodes, long counterRecid, BTreeKeySerializer<K> keySerializer, Serializer<V> valueSerializer, Comparator<K> comparator, int numberOfNodeMetas, boolean disableLocks)
Constructor used to create new BTreeMap.

Caches.HardRef(Engine engine, int initialCapacity, boolean disableLocks)

Caches.HashTable(Engine engine, int cacheMaxSize, boolean disableLocks)

Caches.LRU(Engine engine, int cacheSize, boolean disableLocks)

Caches.LRU(Engine engine, LongMap<Object> cache, boolean disableLocks)

Caches.WeakSoftRef(Engine engine, boolean useWeakRef, boolean disableLocks)

DB(Engine engine)
Construct new DB.

DB(Engine engine, boolean strictDBGet, boolean disableLocks)

EngineWrapper.CloseOnJVMShutdown(Engine engine)

EngineWrapper.ImmutabilityCheckEngine(Engine engine)

EngineWrapper.ReadOnlyEngine(Engine engine)

EngineWrapper.SerializerCheckEngineWrapper(Engine engine)

EngineWrapper.SynchronizedEngineWrapper(Engine engine)

EngineWrapper(Engine engine)

HTreeMap(Engine engine, long counterRecid, int hashSalt, long[] segmentRecids, Serializer<K> keySerializer, Serializer<V> valueSerializer, long expireTimeStart, long expire, long expireAccess, long expireMaxSize, long expireStoreSize, long[] expireHeads, long[] expireTails, Fun.Function1<V,K> valueCreator, Hasher hasher, boolean disableLocks)
Opens HTreeMap

Queues.CircularQueue(Engine engine, Serializer<E> serializer, long headRecid, long headInsertRecid, long size)

Queues.Queue(Engine engine, Serializer<E> serializer, long headerRecid, long nextTailRecid, boolean useLocks)

Queues.SimpleQueue(Engine engine, Serializer<E> serializer, long headRecidRef, boolean useLocks)

Queues.Stack(Engine engine, Serializer<E> serializer, long headerRecidRef, boolean useLocks)

TxEngine(Engine engine, boolean fullTx)

TxMaker(Engine engine)

TxMaker(Engine engine, boolean strictDBGet, boolean txSnapshotsEnabled)