Class TxDecisionMaker.RepeatableReadLockDecisionMaker<K,V>

java.lang.Object

org.h2.mvstore.MVMap.DecisionMaker<VersionedValue<V>>

org.h2.mvstore.tx.TxDecisionMaker<K,V>

org.h2.mvstore.tx.TxDecisionMaker.LockDecisionMaker<K,V>

org.h2.mvstore.tx.TxDecisionMaker.RepeatableReadLockDecisionMaker<K,V>

Enclosing class:

TxDecisionMaker<K,V>

public static final class TxDecisionMaker.RepeatableReadLockDecisionMaker<K,V>
extends TxDecisionMaker.LockDecisionMaker<K,V>

Nested Class Summary

Nested classes/interfaces inherited from class TxDecisionMaker

TxDecisionMaker.LockDecisionMaker<K,V>, TxDecisionMaker.PutIfAbsentDecisionMaker<K,V>, TxDecisionMaker.RepeatableReadLockDecisionMaker<K,V>

Field Summary

Fields

Modifier and Type	Field	Description
private final Function<K,V>	snapshotValueSupplier
private final DataType<VersionedValue<V>>	valueType

Fields inherited from class TxDecisionMaker

key

Fields inherited from class MVMap.DecisionMaker

DEFAULT, PUT, REMOVE

Constructor Summary

Constructors

Constructor	Description
RepeatableReadLockDecisionMaker(int mapId, Transaction transaction, DataType<VersionedValue<V>> valueType, Function<K,V> snapshotValueSupplier)

Method Summary

Modifier and Type	Method	Description
(package private) MVMap.Decision	logAndDecideToPut(VersionedValue<V> valueToLog, V value)	Create undo log entry and record for future references MVMap.Decision.PUT decision along with last known committed value

Methods inherited from class TxDecisionMaker.LockDecisionMaker

decide, getNewValue

Methods inherited from class TxDecisionMaker

allowNonRepeatableRead, decideToAbort, getBlockingTransaction, getDecision, getLastValue, initialize, isCommitted, isRepeatedOperation, isThisTransaction, reset, selectValue, setDecision, toString

Methods inherited from class MVMap.DecisionMaker

decide

Methods inherited from class Object

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

Field Details

valueType

private final DataType<VersionedValue<V>> valueType

snapshotValueSupplier

private final Function<K,V> snapshotValueSupplier

Constructor Details

RepeatableReadLockDecisionMaker

RepeatableReadLockDecisionMaker(int mapId,
 Transaction transaction,
 DataType<VersionedValue<V>> valueType,
 Function<K,V> snapshotValueSupplier)

Method Details

logAndDecideToPut

MVMap.Decision logAndDecideToPut(VersionedValue<V> valueToLog,
 V value)

Description copied from class: TxDecisionMaker

Create undo log entry and record for future references MVMap.Decision.PUT decision along with last known committed value

Overrides:

logAndDecideToPut in class TxDecisionMaker<K,V>

Parameters:

valueToLog - previous value to be logged

value - last known committed value

Returns:

MVMap.Decision.PUT