Class TransactionMap.TMIterator<K,V,X>

java.lang.Object

org.h2.mvstore.tx.TransactionMap.TMIterator<K,V,X>

All Implemented Interfaces:

Iterator<X>

Direct Known Subclasses:

TransactionMap.CommittedIterator, TransactionMap.RepeatableIterator, TransactionMap.UncommittedIterator

Enclosing class:

TransactionMap<K,V>

public abstract static class TransactionMap.TMIterator<K,V,X>
extends Object
implements Iterator<X>

Field Summary

Fields

Modifier and Type	Field	Description
(package private) final BitSet	committingTransactions
(package private) X	current
protected final Cursor<K, VersionedValue<V>>	cursor
private final boolean	forEntries
(package private) final int	transactionId

Constructor Summary

Constructors

Constructor	Description
TMIterator(TransactionMap<K,V> transactionMap, K from, K to, Snapshot<K, VersionedValue<V>> snapshot, boolean reverse, boolean forEntries)

Method Summary

Modifier and Type	Method	Description
abstract X	fetchNext()	Fetches a next entry.
final boolean	hasNext()
final X	next()
(package private) final X	toElement(K key, Object value)

Methods inherited from class Object

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

Methods inherited from interface Iterator

forEachRemaining, remove

Field Details

transactionId

final int transactionId

committingTransactions

final BitSet committingTransactions

cursor

protected final Cursor<K, VersionedValue<V>> cursor

forEntries

private final boolean forEntries

current

X current

Constructor Details

TMIterator

TMIterator(TransactionMap<K,V> transactionMap,
 K from,
 K to,
 Snapshot<K, VersionedValue<V>> snapshot,
 boolean reverse,
 boolean forEntries)

Method Details

toElement

final X toElement(K key,
 Object value)

fetchNext

public abstract X fetchNext()

Fetches a next entry. This method cannot be used together with hasNext() and next().

Returns:

the next entry or null

hasNext

public final boolean hasNext()

Specified by:

hasNext in interface Iterator<K>

next

public final X next()

Specified by:

next in interface Iterator<K>