Uses of Class
org.h2.mvstore.RootReference
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Packages that use RootReference Package Description org.h2.mvstore A persistent storage for tree maps.org.h2.mvstore.tx Helper classes to use the MVStore in a transactional manner. -
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Uses of RootReference in org.h2.mvstore
Fields in org.h2.mvstore declared as RootReference Modifier and Type Field Description (package private) RootReference<K,V>
RootReference. previous
Reference to the previous root in the chain.Fields in org.h2.mvstore with type parameters of type RootReference Modifier and Type Field Description private java.util.concurrent.atomic.AtomicReference<RootReference<K,V>>
MVMap. root
Reference to the current root page.Methods in org.h2.mvstore that return RootReference Modifier and Type Method Description (package private) RootReference<K,V>
MVMap. clearIt()
Remove all entries and return the root reference.RootReference<K,V>
MVMap. flushAndGetRoot()
Get the root reference, flushing any current append buffer.private RootReference<K,V>
MVMap. flushAppendBuffer(RootReference<K,V> rootReference, boolean fullFlush)
If map was used in append mode, this method will ensure that append buffer is flushed - emptied with all entries inserted into map as a new leaf.RootReference<K,V>
MVMap. getRoot()
private RootReference<K,V>
MVMap. lockRoot(RootReference<K,V> rootReference, int attempt)
(package private) RootReference<K,V>
MVMap. setWriteVersion(long writeVersion)
protected RootReference<K,V>
MVMap. tryLock(RootReference<K,V> rootReference, int attempt)
Try to lock the root.(package private) RootReference<K,V>
RootReference. tryLock(int attemptCounter)
Try to lock.(package private) RootReference<K,V>
RootReference. tryUnlockAndUpdateVersion(long version, int attempt)
Try to unlock, and if successful update the versionprivate RootReference<K,V>
RootReference. tryUpdate(RootReference<K,V> updatedRootReference)
private RootReference<K,V>
MVMap. unlockRoot()
Unlock the root page, the new root being null.protected RootReference<K,V>
MVMap. unlockRoot(Page<K,V> newRootPage)
Unlock the root page.private RootReference<K,V>
MVMap. unlockRoot(Page<K,V> newRootPage, int appendCounter)
(package private) RootReference<K,V>
RootReference. updatePageAndLockedStatus(Page<K,V> page, boolean keepLocked, int appendCounter)
Update the page, possibly keeping it locked.(package private) RootReference<K,V>
RootReference. updateRootPage(Page<K,V> newRootPage, long attemptCounter)
Try to unlock.Methods in org.h2.mvstore with parameters of type RootReference Modifier and Type Method Description (package private) boolean
MVMap. compareAndSetRoot(RootReference<K,V> expectedRootReference, RootReference<K,V> updatedRootReference)
Compare and set the root reference.Cursor<K,V>
MVMap. cursor(RootReference<K,V> rootReference, K from, K to, boolean reverse)
Get a cursor to iterate over a number of keys and values.private RootReference<K,V>
MVMap. flushAppendBuffer(RootReference<K,V> rootReference, boolean fullFlush)
If map was used in append mode, this method will ensure that append buffer is flushed - emptied with all entries inserted into map as a new leaf.private K
MVMap. getMinMax(RootReference<K,V> rootRef, K key, boolean min, boolean excluding)
K
MVMap. higherKey(RootReference<K,V> rootRef, K key)
Get the smallest key that is larger than the given key, for the given root page, or null if no such key exists.private RootReference<K,V>
MVMap. lockRoot(RootReference<K,V> rootReference, int attempt)
K
MVMap. lowerKey(RootReference<K,V> rootRef, K key)
Get the largest key that is smaller than the given key, for the given root page, or null if no such key exists.private void
MVMap. removeUnusedOldVersions(RootReference<K,V> rootReference)
Forget those old versions that are no longer needed.protected RootReference<K,V>
MVMap. tryLock(RootReference<K,V> rootReference, int attempt)
Try to lock the root.private RootReference<K,V>
RootReference. tryUpdate(RootReference<K,V> updatedRootReference)
protected static <K,V>
booleanMVMap. updateRoot(RootReference<K,V> expectedRootReference, Page<K,V> newRootPage, int attemptUpdateCounter)
Use the new root page from now on.Constructors in org.h2.mvstore with parameters of type RootReference Constructor Description Cursor(RootReference<K,V> rootReference, K from, K to)
Cursor(RootReference<K,V> rootReference, K from, K to, boolean reverse)
RootReference(RootReference<K,V> r, int attempt)
RootReference(RootReference<K,V> r, long version, int attempt)
RootReference(RootReference<K,V> r, Page<K,V> root, boolean keepLocked, int appendCounter)
RootReference(RootReference<K,V> r, Page<K,V> root, long updateAttemptCounter)
Constructor parameters in org.h2.mvstore with type arguments of type RootReference Constructor Description MVMap(MVStore store, DataType<K> keyType, DataType<V> valueType, int id, long createVersion, java.util.concurrent.atomic.AtomicReference<RootReference<K,V>> root, int keysPerPage, boolean singleWriter)
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Uses of RootReference in org.h2.mvstore.tx
Fields in org.h2.mvstore.tx declared as RootReference Modifier and Type Field Description (package private) RootReference<K,V>
Snapshot. root
The root reference.private RootReference<java.lang.Long,Record<?,?>>[]
Transaction. undoLogRootReferences
RootReferences for undo log snapshotsMethods in org.h2.mvstore.tx that return RootReference Modifier and Type Method Description (package private) RootReference<java.lang.Long,Record<?,?>>[]
TransactionStore. collectUndoLogRootReferences()
Get the root references (snapshots) for undo-log maps.(package private) RootReference<java.lang.Long,Record<?,?>>[]
Transaction. getUndoLogRootReferences()
Methods in org.h2.mvstore.tx with parameters of type RootReference Modifier and Type Method Description private long
TransactionMap. adjustSize(RootReference<java.lang.Long,Record<?,?>>[] undoLogRootReferences, RootReference<K,VersionedValue<V>> mapRootReference, java.util.BitSet committingTransactions, long size, long undoLogsTotalSize)
(package private) static long
TransactionStore. calculateUndoLogsTotalSize(RootReference<java.lang.Long,Record<?,?>>[] undoLogRootReferences)
Calculate the size for undo log entries.private V
TransactionMap. getFromSnapshot(RootReference<K,VersionedValue<V>> rootRef, java.util.BitSet committingTransactions, K key)
Method parameters in org.h2.mvstore.tx with type arguments of type RootReference Modifier and Type Method Description (package private) <R> R
TransactionMap. useSnapshot(java.util.function.BiFunction<RootReference<K,VersionedValue<V>>,java.util.BitSet,R> snapshotConsumer)
Gets a coherent picture of committing transactions and root reference, passes it to the specified function, and returns its result.Constructors in org.h2.mvstore.tx with parameters of type RootReference Constructor Description Snapshot(RootReference<K,V> root, java.util.BitSet committingTransactions)
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