org.apache.ignite.internal.processors.cache.tree.mvcc.search

Class MvccSnapshotSearchRow

java.lang.Object

org.apache.ignite.internal.processors.cache.tree.SearchRow

org.apache.ignite.internal.processors.cache.tree.mvcc.search.MvccSearchRow

org.apache.ignite.internal.processors.cache.tree.mvcc.search.MvccSnapshotSearchRow

All Implemented Interfaces:

MvccVersionAware, CacheSearchRow, BPlusTree.TreeRowClosure<CacheSearchRow,CacheDataRow>, MvccTreeClosure

public class MvccSnapshotSearchRow
extends MvccSearchRow
implements MvccTreeClosure

Search row which returns the first row visible for the given snapshot. Usage: - set this row as the upper bound - pass the same row as search closure.

Field Summary

Fields inherited from class org.apache.ignite.internal.processors.cache.tree.mvcc.search.MvccSearchRow

crdVer, opCntr

Constructor Summary

Constructors

Constructor and Description
MvccSnapshotSearchRow(GridCacheContext cctx, KeyCacheObject key, MvccSnapshot snapshot) Constructor.

Method Summary

Modifier and Type	Method and Description
boolean	apply(BPlusTree<CacheSearchRow,CacheDataRow> tree, BPlusIO<CacheSearchRow> io, long pageAddr, int idx) Performs inspection or operation on a specified row and returns true if this row is required or matches or /operation successful (depending on the context).
@Nullable CacheDataRow	row()
String	toString()

Methods inherited from class org.apache.ignite.internal.processors.cache.tree.mvcc.search.MvccSearchRow

mvccCoordinatorVersion, mvccCounter, mvccOperationCounter

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

cacheId, hash, key, link, mvccTxState

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

MvccSnapshotSearchRow

public MvccSnapshotSearchRow(GridCacheContext cctx,
                             KeyCacheObject key,
                             MvccSnapshot snapshot)

Constructor.

Parameters:

cctx -

key - Key.

snapshot - Snapshot.

Method Detail

row

@Nullable
public @Nullable CacheDataRow row()

Returns:

Found row.

apply

public boolean apply(BPlusTree<CacheSearchRow,CacheDataRow> tree,
                     BPlusIO<CacheSearchRow> io,
                     long pageAddr,
                     int idx)
              throws IgniteCheckedException

Performs inspection or operation on a specified row and returns true if this row is required or matches or /operation successful (depending on the context).

Specified by:

apply in interface BPlusTree.TreeRowClosure<CacheSearchRow,CacheDataRow>

Parameters:

tree - The tree.

io - Th tree IO object.

pageAddr - The page address.

idx - The item index.

Returns:

True if the item passes the predicate.

Throws:

IgniteCheckedException - If failed.

toString

public String toString()

Overrides:

toString in class MvccSearchRow