org.apache.ignite.internal.cache.query.index.sorted

Class IndexRowImpl

java.lang.Object

org.apache.ignite.internal.cache.query.index.sorted.IndexRowImpl

All Implemented Interfaces:

IndexRow, MvccVersionAware

Direct Known Subclasses:

DefragIndexFactory.DefragIndexRowImpl

public class IndexRowImpl
extends Object
implements IndexRow

This class represents a row in SortedSegmentedIndex.

Constructor Summary

Constructors

Constructor and Description
IndexRowImpl(InlineIndexRowHandler rowHnd, CacheDataRow row) Constructor.
IndexRowImpl(InlineIndexRowHandler rowHnd, CacheDataRow row, IndexKey[] keys) Constructor with prefilling of keys cache.

Method Summary

Modifier and Type	Method and Description
CacheDataRow	cacheDataRow()
int	cacheId()
boolean	indexPlainRow()
IndexKey	key(int idx)
int	keysCount()
long	link()
long	mvccCoordinatorVersion()
long	mvccCounter()
int	mvccOperationCounter()
byte	mvccTxState()
void	prepareCache() Initialize a cache for index keys.
InlineIndexRowHandler	rowHandler()
String	toString()
CacheObject	value()

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.ignite.internal.processors.cache.mvcc.MvccVersionAware

mvccVersion, mvccVersion, mvccVersion, mvccVersion

Constructor Detail

IndexRowImpl

public IndexRowImpl(InlineIndexRowHandler rowHnd,
                    CacheDataRow row)

Constructor.

IndexRowImpl

public IndexRowImpl(InlineIndexRowHandler rowHnd,
                    CacheDataRow row,
                    IndexKey[] keys)

Constructor with prefilling of keys cache.

Method Detail

value

public CacheObject value()

Returns:

Indexed value.

key

public IndexKey key(int idx)

Specified by:

key in interface IndexRow

Parameters:

idx - Index of a key.

Returns:

Underlying key by specified index.

keysCount

public int keysCount()

Specified by:

keysCount in interface IndexRow

Returns:

Keys count.

link

public long link()

Specified by:

link in interface IndexRow

Returns:

Link to a cache row.

rowHandler

public InlineIndexRowHandler rowHandler()

Specified by:

rowHandler in interface IndexRow

Returns:

Schema of an index.

cacheDataRow

public CacheDataRow cacheDataRow()

Specified by:

cacheDataRow in interface IndexRow

Returns:

Cache row.

cacheId

public int cacheId()

Returns:

Cache ID or 0 if cache ID is not defined.

prepareCache

public void prepareCache()

Initialize a cache for index keys. Useful for inserting rows as there are a lot of comparisons.

toString

public String toString()

Overrides:

toString in class Object

mvccCoordinatorVersion

public long mvccCoordinatorVersion()

Specified by:

mvccCoordinatorVersion in interface IndexRow

Specified by:

mvccCoordinatorVersion in interface MvccVersionAware

Returns:

Mvcc coordinator version.

mvccCounter

public long mvccCounter()

Specified by:

mvccCounter in interface IndexRow

Specified by:

mvccCounter in interface MvccVersionAware

Returns:

Mvcc counter.

mvccOperationCounter

public int mvccOperationCounter()

Specified by:

mvccOperationCounter in interface IndexRow

Specified by:

mvccOperationCounter in interface MvccVersionAware

Returns:

Mvcc operation counter.

mvccTxState

public byte mvccTxState()

Specified by:

mvccTxState in interface IndexRow

Specified by:

mvccTxState in interface MvccVersionAware

Returns:

Tx state hint for 'created' mvcc version.

indexPlainRow

public boolean indexPlainRow()

Specified by:

indexPlainRow in interface IndexRow

Returns:

True for rows used for index search (as opposed to rows stored in InlineIndexTree.