Package org.h2.mvstore.tx

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 org.h2.mvstore.tx.TxDecisionMaker

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

Field Summary

Fields

Modifier and Type	Field	Description
private java.util.function.Function<K,V>	snapshotValueSupplier
private DataType<VersionedValue<V>>	valueType

Fields inherited from class org.h2.mvstore.tx.TxDecisionMaker

key

Fields inherited from class org.h2.mvstore.MVMap.DecisionMaker

DEFAULT, PUT, REMOVE

Constructor Summary

Constructors

Constructor	Description
RepeatableReadLockDecisionMaker(int mapId, Transaction transaction, DataType<VersionedValue<V>> valueType, java.util.function.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 org.h2.mvstore.tx.TxDecisionMaker.LockDecisionMaker

decide, getNewValue

Methods inherited from class org.h2.mvstore.tx.TxDecisionMaker

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

Methods inherited from class org.h2.mvstore.MVMap.DecisionMaker

decide

Methods inherited from class java.lang.Object

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

Field Detail

valueType

private final DataType<VersionedValue<V>> valueType

snapshotValueSupplier

private final java.util.function.Function<K,V> snapshotValueSupplier

Constructor Detail

RepeatableReadLockDecisionMaker

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

Method Detail

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