org.apache.ignite.internal.processors.query.h2.database

Class H2TreeInlineObjectDetector

java.lang.Object

org.apache.ignite.internal.processors.query.h2.database.H2TreeInlineObjectDetector

All Implemented Interfaces:

BPlusTree.TreeRowClosure<H2Row,H2Row>

public class H2TreeInlineObjectDetector
extends Object
implements BPlusTree.TreeRowClosure<H2Row,H2Row>

Used to detect inline object. Because version wasn't upped.

Method Summary

Modifier and Type	Method and Description
boolean	apply(BPlusTree<H2Row,H2Row> tree, BPlusIO<H2Row> io, long pageAddr, int idx)
boolean	inlineObjectSupported()
static boolean	objectMayBeInlined(int inlineSize, List<InlineIndexColumn> inlineHelpers) Static analyze inline_size and inline helpers set. e.g.: indexed: (long, obj) and inline_size < 12.

Methods inherited from class java.lang.Object

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

Method Detail

apply

public boolean apply(BPlusTree<H2Row,H2Row> tree,
                     BPlusIO<H2Row> io,
                     long pageAddr,
                     int idx)
              throws IgniteCheckedException

Specified by:

apply in interface BPlusTree.TreeRowClosure<H2Row,H2Row>

Throws:

IgniteCheckedException

inlineObjectSupported

public boolean inlineObjectSupported()

Returns:

true if inline object is supported on current tree.

objectMayBeInlined

public static boolean objectMayBeInlined(int inlineSize,
                                         List<InlineIndexColumn> inlineHelpers)

Static analyze inline_size and inline helpers set. e.g.: indexed: (long, obj) and inline_size < 12. In this case there is no space to inline object.

Parameters:

inlineHelpers - Inline helpers.

inlineSize - Inline size.

Returns:

true If the object may be inlined.