org.apache.ignite.internal.processors.cache.persistence.metastorage

Class MetastoragePageIOUtils

java.lang.Object

org.apache.ignite.internal.processors.cache.persistence.metastorage.MetastoragePageIOUtils

public class MetastoragePageIOUtils
extends Object

MetastorageInnerIO and MetastorageLeafIO use the same page format but cannot explicitly share the same implementation, because they are inherited from two independant abstract classes. So this util class contains that implementation and should be used to avoid code duplication.

Constructor Summary

Constructors

Constructor and Description
MetastoragePageIOUtils()

Method Summary

Modifier and Type	Method and Description
static <IO extends BPlusIO<MetastorageRow> & MetastorageBPlusIO> MetastorageDataRow	getDataRow(IO io, long pageAddr, int idx, MetastorageRowStore rowStore)
static <IO extends BPlusIO<MetastorageRow> & MetastorageBPlusIO> String	getKey(IO io, long pageAddr, int idx, MetastorageRowStore rowStore)
static <IO extends BPlusIO<MetastorageRow> & MetastorageBPlusIO> short	getKeySize(IO io, long pageAddr, int idx)
static <IO extends BPlusIO<MetastorageRow> & MetastorageBPlusIO> long	getLink(IO io, long pageAddr, int idx)
static <IO extends BPlusIO<MetastorageRow> & MetastorageBPlusIO> void	store(IO dstIo, long dstPageAddr, int dstIdx, BPlusIO<MetastorageRow> srcIo, long srcPageAddr, int srcIdx)
static <IO extends BPlusIO<MetastorageRow> & MetastorageBPlusIO> void	storeByOffset(IO io, long pageAddr, int off, MetastorageRow row)

Methods inherited from class java.lang.Object

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

Constructor Detail

MetastoragePageIOUtils

public MetastoragePageIOUtils()

Method Detail

getLink

public static <IO extends BPlusIO<MetastorageRow> & MetastorageBPlusIO> long getLink(IO io,
                                                                                     long pageAddr,
                                                                                     int idx)

See Also:

MetastorageBPlusIO.getLink(long, int)

getKeySize

public static <IO extends BPlusIO<MetastorageRow> & MetastorageBPlusIO> short getKeySize(IO io,
                                                                                         long pageAddr,
                                                                                         int idx)

See Also:

MetastorageBPlusIO.getKeySize(long, int)

getKey

public static <IO extends BPlusIO<MetastorageRow> & MetastorageBPlusIO> String getKey(IO io,
                                                                                      long pageAddr,
                                                                                      int idx,
                                                                                      MetastorageRowStore rowStore)
                                                                               throws IgniteCheckedException

Throws:

IgniteCheckedException

See Also:

MetastorageBPlusIO.getKey(long, int, MetastorageRowStore)

getDataRow

public static <IO extends BPlusIO<MetastorageRow> & MetastorageBPlusIO> MetastorageDataRow getDataRow(IO io,
                                                                                                      long pageAddr,
                                                                                                      int idx,
                                                                                                      MetastorageRowStore rowStore)
                                                                                               throws IgniteCheckedException

Throws:

IgniteCheckedException

See Also:

MetastorageBPlusIO.getDataRow(long, int, MetastorageRowStore)

store

public static <IO extends BPlusIO<MetastorageRow> & MetastorageBPlusIO> void store(IO dstIo,
                                                                                   long dstPageAddr,
                                                                                   int dstIdx,
                                                                                   BPlusIO<MetastorageRow> srcIo,
                                                                                   long srcPageAddr,
                                                                                   int srcIdx)

See Also:

BPlusIO.store(long, int, org.apache.ignite.internal.processors.cache.persistence.tree.io.BPlusIO, long, int)

storeByOffset

public static <IO extends BPlusIO<MetastorageRow> & MetastorageBPlusIO> void storeByOffset(IO io,
                                                                                           long pageAddr,
                                                                                           int off,
                                                                                           MetastorageRow row)

See Also:

BPlusIO.storeByOffset(long, int, Object)