com.orientechnologies.orient.core.iterator

Class ORecordIteratorClassDescendentOrder<REC extends ORecord>

java.lang.Object

com.orientechnologies.orient.core.iterator.OIdentifiableIterator<REC>

com.orientechnologies.orient.core.iterator.ORecordIteratorClusters<REC>

com.orientechnologies.orient.core.iterator.ORecordIteratorClass<REC>

com.orientechnologies.orient.core.iterator.ORecordIteratorClassDescendentOrder<REC>

All Implemented Interfaces:

Iterable<REC>, Iterator<REC>

public class ORecordIteratorClassDescendentOrder<REC extends ORecord>
extends ORecordIteratorClass<REC>

Record iterator to browse records in inverse order: from last to the first.

Author:

Luca Garulli (l.garulli--(at)--orientdb.com)

Field Summary

Fields inherited from class com.orientechnologies.orient.core.iterator.ORecordIteratorClass

polymorphic, targetClass

Fields inherited from class com.orientechnologies.orient.core.iterator.ORecordIteratorClusters

beginRange, clusterIds, currentClusterIdx, currentRecord, endRange

Fields inherited from class com.orientechnologies.orient.core.iterator.OIdentifiableIterator

brokenRIDs, browsedRecords, current, currentTxEntryPosition, database, firstClusterEntry, lastClusterEntry, limit, liveUpdated, lockingStrategy, totalAvailableRecords, txEntries

Constructor Summary

Constructors

Constructor and Description
ORecordIteratorClassDescendentOrder(ODatabaseDocumentInternal iDatabase, ODatabaseDocumentInternal iLowLevelDatabase, String iClassName, boolean iPolymorphic)
ORecordIteratorClassDescendentOrder(ODatabaseDocumentInternal iDatabase, ODatabaseDocumentInternal iLowLevelDatabase, String iClassName, boolean iPolymorphic, OStorage.LOCKING_STRATEGY iLockingStrategy) Deprecated.

Method Summary

Modifier and Type	Method and Description
ORecordIteratorClusters<REC>	begin() Move the iterator to the begin of the range.
boolean	hasNext()
REC	next() Return the element at the current position and move forward the stream to the next position available.

Methods inherited from class com.orientechnologies.orient.core.iterator.ORecordIteratorClass

config, getTargetClass, include, isPolymorphic, previous, toString

Methods inherited from class com.orientechnologies.orient.core.iterator.ORecordIteratorClusters

getBeginRange, getClusterIds, getEndRange, hasPrevious, last, setLiveUpdated, setRange, updateClusterRange

Methods inherited from class com.orientechnologies.orient.core.iterator.OIdentifiableIterator

checkCurrentPosition, checkDirection, checkForSystemClusters, current, currentPosition, getBrokenRIDs, getCurrentEntry, getFetchPlan, getLimit, getRecord, getTransactionEntry, isLiveUpdated, isReuseSameRecord, iterator, nextPosition, prevPosition, readCurrentRecord, remove, resetCurrentPosition, setFetchPlan, setLimit, setReuseSameRecord

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Iterator

forEachRemaining

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Constructor Detail

ORecordIteratorClassDescendentOrder

public ORecordIteratorClassDescendentOrder(ODatabaseDocumentInternal iDatabase,
                                           ODatabaseDocumentInternal iLowLevelDatabase,
                                           String iClassName,
                                           boolean iPolymorphic)

ORecordIteratorClassDescendentOrder

@Deprecated
public ORecordIteratorClassDescendentOrder(ODatabaseDocumentInternal iDatabase,
                                                       ODatabaseDocumentInternal iLowLevelDatabase,
                                                       String iClassName,
                                                       boolean iPolymorphic,
                                                       OStorage.LOCKING_STRATEGY iLockingStrategy)

Deprecated.

Method Detail

begin

public ORecordIteratorClusters<REC> begin()

Description copied from class: ORecordIteratorClusters

Move the iterator to the begin of the range. If no range was specified move to the first record of the cluster.

Overrides:

begin in class ORecordIteratorClusters<REC extends ORecord>

Returns:

The object itself

next

public REC next()

Description copied from class: ORecordIteratorClusters

Return the element at the current position and move forward the stream to the next position available.

Specified by:

next in interface Iterator<REC extends ORecord>

Overrides:

next in class ORecordIteratorClass<REC extends ORecord>

Returns:

the next record found, otherwise the NoSuchElementException exception is thrown when no more records are found.

hasNext

public boolean hasNext()

Specified by:

hasNext in interface Iterator<REC extends ORecord>

Overrides:

hasNext in class ORecordIteratorClusters<REC extends ORecord>