com.orientechnologies.orient.core.storage.index.sbtree.local

Class ONullBucket<V>

java.lang.Object

com.orientechnologies.orient.core.storage.impl.local.paginated.base.ODurablePage

com.orientechnologies.orient.core.storage.index.sbtree.local.ONullBucket<V>

public class ONullBucket<V>
extends ODurablePage

Bucket which is intended to save values stored in sbtree under null key. Bucket has following layout:

1. First byte is flag which indicates presence of value in bucket
2. Second byte indicates whether value is presented by link to the "bucket list" where actual value is stored or real value passed be user.
3. The rest is serialized value whether link or passed in value.

Since:

4/15/14

Author:

Andrey Lomakin (a.lomakin-at-orientdb.com)

Field Summary

Fields inherited from class com.orientechnologies.orient.core.storage.impl.local.paginated.base.ODurablePage

CRC32_OFFSET, MAGIC_NUMBER_OFFSET, MAX_PAGE_SIZE_BYTES, NEXT_FREE_POSITION, WAL_POSITION_OFFSET, WAL_SEGMENT_OFFSET

Constructor Summary

Constructors

Constructor and Description
ONullBucket(OCacheEntry cacheEntry, OBinarySerializer<V> valueSerializer, boolean isNew)

Method Summary

Modifier and Type	Method and Description
OSBTreeValue<V>	getValue()
void	removeValue()
void	setValue(OSBTreeValue<V> value)

Methods inherited from class com.orientechnologies.orient.core.storage.impl.local.paginated.base.ODurablePage

deserializeFromDirectMemory, getBinaryValue, getByteValue, getChanges, getIntValue, getLogSequenceNumber, getLogSequenceNumberFromPage, getLongValue, getLsn, getObjectSizeInDirectMemory, getPageData, getShortValue, moveData, restoreChanges, setBinaryValue, setByteValue, setIntValue, setLongValue, setLsn, setShortValue, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

ONullBucket

public ONullBucket(OCacheEntry cacheEntry,
                   OBinarySerializer<V> valueSerializer,
                   boolean isNew)

Method Detail

setValue

public void setValue(OSBTreeValue<V> value)
              throws IOException

Throws:

IOException

getValue

public OSBTreeValue<V> getValue()

removeValue

public void removeValue()