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

Class MetastorageTree

java.lang.Object

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

org.apache.ignite.internal.processors.cache.persistence.tree.BPlusTree<MetastorageRow,MetastorageDataRow>

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

All Implemented Interfaces:

IgniteTree<MetastorageRow,MetastorageDataRow>

public class MetastorageTree
extends BPlusTree<MetastorageRow,MetastorageDataRow>

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.ignite.internal.processors.cache.persistence.tree.BPlusTree

BPlusTree.Get, BPlusTree.Insert, BPlusTree.Invoke, BPlusTree.Put, BPlusTree.Replace, BPlusTree.Result, BPlusTree.Search, BPlusTree.TreeRowClosure<L,T extends L>, BPlusTree.TreeVisitorClosure<L,T extends L>

Nested classes/interfaces inherited from interface org.apache.ignite.internal.util.IgniteTree

IgniteTree.InvokeClosure<T>, IgniteTree.OperationType

Field Summary

Fields

Modifier and Type	Field and Description
static int	MAX_KEY_LEN Max key length (bytes num)

Fields inherited from class org.apache.ignite.internal.processors.cache.persistence.tree.BPlusTree

CONC_DESTROY_MSG, IGNITE_BPLUS_TREE_LOCK_RETRIES_DEFAULT, metaPageId, suspendFailureDiagnostic, testHndWrapper

Fields inherited from class org.apache.ignite.internal.processors.cache.persistence.DataStructure

grpId, grpName, lockLsnr, NOOP_LSNR, pageFlag, pageIoRslvr, pageMem, reuseList, rnd, wal

Constructor Summary

Constructors

Constructor and Description
MetastorageTree(int cacheId, String name, PageMemory pageMem, IgniteWriteAheadLogManager wal, AtomicLong globalRmvId, ReuseList reuseList, MetastorageRowStore rowStore, long metaPageId, boolean initNew, @Nullable FailureProcessor failureProcessor, int partId, @Nullable PageLockListener lockLsnr)

Method Summary

Modifier and Type	Method and Description
protected long	allocatePageNoReuse()
protected int	compare(BPlusIO<MetastorageRow> io, long pageAddr, int idx, MetastorageRow row)
MetastorageDataRow	getRow(BPlusIO<MetastorageRow> io, long pageAddr, int idx, Object x) Get data row.
MetastorageRowStore	rowStore()

Methods inherited from class org.apache.ignite.internal.processors.cache.persistence.tree.BPlusTree

acquirePage, checkDestroyed, compare, corruptedTreeException, destroy, destroy, destroyDownPages, enableSequentialWriteMode, find, find, find, findFirst, findFirst, findLast, findLast, findOne, findOne, findOne, getFirstPageIds, getLockRetries, getMetaPageId, getName, getRow, initTree, initTree, interruptAll, invoke, isEmpty, iterate, latestInnerIO, latestLeafIO, markDestroyed, maxLockHoldTime, printTree, processFailure, put, putx, read, read, remove, removex, rootLevel, setIos, size, size, statisticsHolder, temporaryReleaseLock, toString, treeName, validateTree, visit

Methods inherited from class org.apache.ignite.internal.processors.cache.persistence.DataStructure

acquirePage, allocatePage, allocatePage, groupId, init, needWalDeltaRecord, pageSize, randomInt, read, read, readLock, readUnlock, recyclePage, releasePage, tryWriteLock, write, write, write, write, writeLock, writeUnlock, writeUnlock

Methods inherited from class java.lang.Object

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

Field Detail

MAX_KEY_LEN

public static final int MAX_KEY_LEN

Max key length (bytes num)

See Also:

Constant Field Values

Constructor Detail

MetastorageTree

public MetastorageTree(int cacheId,
                       String name,
                       PageMemory pageMem,
                       IgniteWriteAheadLogManager wal,
                       AtomicLong globalRmvId,
                       ReuseList reuseList,
                       MetastorageRowStore rowStore,
                       long metaPageId,
                       boolean initNew,
                       @Nullable
                       @Nullable FailureProcessor failureProcessor,
                       int partId,
                       @Nullable
                       @Nullable PageLockListener lockLsnr)
                throws IgniteCheckedException

Parameters:

pageMem - Page memory instance.

wal - WAL manager.

globalRmvId - Global remove ID.

metaPageId - Meta page ID.

reuseList - Reuse list.

rowStore - Row store.

initNew - Init new flag, if true, then new tree will be allocated.

failureProcessor - To call if the tree is corrupted.

Throws:

IgniteCheckedException - If failed to initialize.

Method Detail

compare

protected int compare(BPlusIO<MetastorageRow> io,
                      long pageAddr,
                      int idx,
                      MetastorageRow row)
               throws IgniteCheckedException

Specified by:

compare in class BPlusTree<MetastorageRow,MetastorageDataRow>

Parameters:

io - IO.

pageAddr - Page address.

idx - Index of row in the given buffer.

row - Lookup row.

Returns:

Comparison result as in Comparator.compare(Object, Object).

Throws:

IgniteCheckedException - If failed.

getRow

public MetastorageDataRow getRow(BPlusIO<MetastorageRow> io,
                                 long pageAddr,
                                 int idx,
                                 Object x)
                          throws IgniteCheckedException

Get data row. Can be called on inner page only if BPlusTree.canGetRowFromInner is true.

Specified by:

getRow in class BPlusTree<MetastorageRow,MetastorageDataRow>

Parameters:

io - IO.

pageAddr - Page address.

idx - Index.

x - Implementation specific argument, null always means that we need to return full detached data row.

Returns:

Data row.

Throws:

IgniteCheckedException - If failed.

rowStore

public MetastorageRowStore rowStore()

Returns:

RowStore.

allocatePageNoReuse

protected long allocatePageNoReuse()
                            throws IgniteCheckedException

Overrides:

allocatePageNoReuse in class DataStructure

Returns:

Page ID of newly allocated page.

Throws:

IgniteCheckedException - If failed.