Class FileMappingEvent

java.lang.Object

jdk.jfr.Event

dev.hardwood.jfr.FileMappingEvent

public class FileMappingEvent
extends Event

JFR event emitted when Hardwood memory-maps a region of a Parquet file.

This event tracks mmap operations which are not captured by the standard jdk.FileRead event. Memory-mapped I/O loads data through page faults rather than explicit read() calls.

Field Summary

Fields

Modifier and Type	Field	Description
String	file
long	offset
long	size

Constructor Summary

Constructors

Constructor	Description
FileMappingEvent()

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

file

public String file

offset

public long offset

size

public long size

Constructor Details

FileMappingEvent

public FileMappingEvent()