com.orientechnologies.orient.core.storage.index.sbtree.local.v1

Class OSBTreeNullBucketV1<V>

java.lang.Object

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

com.orientechnologies.orient.core.storage.index.sbtree.local.v1.OSBTreeNullBucketV1<V>

public final class OSBTreeNullBucketV1<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
OSBTreeNullBucketV1(OCacheEntry cacheEntry)

Method Summary

Modifier and Type	Method and Description
byte[]	getRawValue(OBinarySerializer<V> valueSerializer)
OSBTreeValue<V>	getValue(OBinarySerializer<V> valueSerializer)
void	init()
void	removeValue(OBinarySerializer<V> valueSerializer)
void	setValue(byte[] value, OBinarySerializer<V> valueSerializer)

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

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

Methods inherited from class java.lang.Object

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

Constructor Detail

OSBTreeNullBucketV1

public OSBTreeNullBucketV1(OCacheEntry cacheEntry)

Method Detail

init

public void init()

setValue

public void setValue(byte[] value,
                     OBinarySerializer<V> valueSerializer)

getValue

public OSBTreeValue<V> getValue(OBinarySerializer<V> valueSerializer)

removeValue

public void removeValue(OBinarySerializer<V> valueSerializer)

getRawValue

public byte[] getRawValue(OBinarySerializer<V> valueSerializer)