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

Interface BPlusTree.TreeRowClosure<L,T extends L>

All Known Subinterfaces:

MvccTreeClosure

All Known Implementing Classes:

MvccFirstRowTreeClosure, MvccSnapshotSearchRow

Enclosing class:

BPlusTree<L,T extends L>

public static interface BPlusTree.TreeRowClosure<L,T extends L>

A generic visitor-style interface for performing filtering/modifications/miscellaneous operations on the tree.

Method Summary

Modifier and Type	Method and Description
boolean	apply(BPlusTree<L,T> tree, BPlusIO<L> 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).

Method Detail

apply

boolean apply(BPlusTree<L,T> tree,
              BPlusIO<L> 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).

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.