Class OnExitDatabaseCloser

java.lang.Object

java.lang.Thread

org.h2.engine.OnExitDatabaseCloser

All Implemented Interfaces:

Runnable

class OnExitDatabaseCloser
extends Thread

This class is responsible to close a database on JVM shutdown.

Nested Class Summary

Nested classes/interfaces inherited from class Thread

Thread.Builder, Thread.State, Thread.UncaughtExceptionHandler

Field Summary

Fields

Modifier and Type	Field	Description
private static final WeakHashMap<Database,Void>	DATABASES
private static final Thread	INSTANCE
private static boolean	registered
private static boolean	terminated

Fields inherited from class Thread

MAX_PRIORITY, MIN_PRIORITY, NORM_PRIORITY

Constructor Summary

Constructors

Modifier	Constructor	Description
private	OnExitDatabaseCloser()

Method Summary

Modifier and Type	Method	Description
private static void	onShutdown()
(package private) static void	register(Database db)	Register database instance to close one on the JVM process shutdown.
void	run()
(package private) static void	unregister(Database db)	Unregister database instance.

Methods inherited from class Thread

activeCount, checkAccess, clone, currentThread, dumpStack, enumerate, getAllStackTraces, getContextClassLoader, getDefaultUncaughtExceptionHandler, getId, getName, getPriority, getStackTrace, getState, getThreadGroup, getUncaughtExceptionHandler, holdsLock, interrupt, interrupted, isAlive, isDaemon, isInterrupted, isVirtual, join, join, join, join, ofPlatform, ofVirtual, onSpinWait, setContextClassLoader, setDaemon, setDefaultUncaughtExceptionHandler, setName, setPriority, setUncaughtExceptionHandler, sleep, sleep, sleep, start, startVirtualThread, stop, threadId, toString, yield

Methods inherited from class Object

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

Field Details

DATABASES

private static final WeakHashMap<Database,Void> DATABASES

INSTANCE

private static final Thread INSTANCE

registered

private static boolean registered

terminated

private static boolean terminated

Constructor Details

OnExitDatabaseCloser

private OnExitDatabaseCloser()

Method Details

register

static void register(Database db)

Register database instance to close one on the JVM process shutdown.

Parameters:

db - Database instance.

unregister

static void unregister(Database db)

Unregister database instance.

Parameters:

db - Database instance.

onShutdown

private static void onShutdown()

run

public void run()

Specified by:

run in interface Runnable

Overrides:

run in class Thread