Class RowGroupScannedEvent

java.lang.Object

jdk.jfr.Event

dev.hardwood.jfr.RowGroupScannedEvent

public class RowGroupScannedEvent
extends Event

JFR event emitted when all pages in a row group column chunk have been scanned.

Scanning reads page headers and parses dictionary pages upfront, producing PageInfo records for on-demand decoding. A high page count relative to the row group size may indicate small page sizes or high cardinality dictionary encoding.

Field Summary

Fields

Modifier and Type	Field	Description
String	column
String	file
int	pageCount
int	rowGroupIndex
String	scanStrategy
static final String	STRATEGY_OFFSET_INDEX
static final String	STRATEGY_SEQUENTIAL

Constructor Summary

Constructors

Constructor	Description
RowGroupScannedEvent()

Method Summary

Methods inherited from class Event

begin, commit, end, isEnabled, set, shouldCommit

Methods inherited from class Object

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

Field Details

STRATEGY_SEQUENTIAL

public static final String STRATEGY_SEQUENTIAL

See Also:

• Constant Field Values

STRATEGY_OFFSET_INDEX

public static final String STRATEGY_OFFSET_INDEX

See Also:

• Constant Field Values

file

public String file

rowGroupIndex

public int rowGroupIndex

column

public String column

pageCount

public int pageCount

scanStrategy

public String scanStrategy

Constructor Details

RowGroupScannedEvent

public RowGroupScannedEvent()