BPlusTree.TreeRowClosure (Ignite 2.17.0)

All Known Implementing Classes:

InlineObjectBytesDetector, InlineTreeFilterClosure

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

All Methods Instance Methods Abstract Methods Default Methods
Modifier and Type	Method	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).
`default L`	`lastRow()`	Optional operation to provide access to the last analyzed row.

- 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.
  - lastRow
```
default L lastRow()
```
    Optional operation to provide access to the last analyzed row. Can be used to optimize chained filters and omit several tree reads.
    
    Returns:
    
    Last row that was analyzed or null.