Package org.apache.ignite.internal.processors.cache.persistence.tree

Class BPlusTree.RemoveRange

java.lang.Object

org.apache.ignite.internal.processors.cache.persistence.tree.BPlusTree.Get

org.apache.ignite.internal.processors.cache.persistence.tree.BPlusTree.Remove

org.apache.ignite.internal.processors.cache.persistence.tree.BPlusTree.RemoveRange

All Implemented Interfaces:

ReuseBag

Enclosing class:

BPlusTree<L,T extends L>

protected class BPlusTree.RemoveRange
extends BPlusTree.Remove

The operation of deleting a range of values.

Performs the removal of several elements from the leaf at once.

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	RemoveRange(L lower, L upper, boolean needOld, Object x, int limit)

Method Summary

Modifier and Type	Method	Description
protected boolean	ceil()
protected BPlusTree.Result	finish(BPlusTree.Result res)	Finish the operation.
protected boolean	releaseForRetry(org.apache.ignite.internal.processors.cache.persistence.tree.BPlusTree.Tail<L> t)
protected void	removeDataRowFromLeaf(long pageId, long page, long pageAddr, Boolean walPlc, BPlusIO<L> io, int cnt, int idx)

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

addFreePage, doRemove, doRemoveFromLeaf, finishOrLockTail, finishTail, isEmpty, isRemoved, lockForward, pollFreePage

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

row

Methods inherited from class java.lang.Object

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

Constructor Detail

RemoveRange

protected RemoveRange(L lower,
                      L upper,
                      boolean needOld,
                      Object x,
                      int limit)

Parameters:

lower - Lower bound (inclusive).

upper - Upper bound (inclusive).

needOld - True If need return old value.

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

limit - Limit of processed entries by single call, 0 or negative value for no limit.

Method Detail

ceil

protected boolean ceil()

Overrides:

ceil in class BPlusTree.Remove

Returns:

Flag indicating that values are removed using an interval (i.e. BPlusTree.Get.row specifies the start of the interval, not an exact match).

removeDataRowFromLeaf

protected void removeDataRowFromLeaf(long pageId,
                                     long page,
                                     long pageAddr,
                                     Boolean walPlc,
                                     BPlusIO<L> io,
                                     int cnt,
                                     int idx)
                              throws IgniteCheckedException

Overrides:

removeDataRowFromLeaf in class BPlusTree.Remove

Parameters:

pageId - Page ID.

page - Page pointer.

pageAddr - Page address.

walPlc - Full page WAL record policy.

io - IO.

cnt - Count.

idx - Index to remove.

Throws:

IgniteCheckedException - If failed.

releaseForRetry

protected boolean releaseForRetry(org.apache.ignite.internal.processors.cache.persistence.tree.BPlusTree.Tail<L> t)

Overrides:

releaseForRetry in class BPlusTree.Remove

Parameters:

t - Tail to release.

Returns:

true If we need to retry or false to exit.

finish

protected BPlusTree.Result finish(BPlusTree.Result res)

Finish the operation.

Overrides:

finish in class BPlusTree.Remove