org.objectweb.cjdbc.common.shared
Class BackendState

java.lang.Object
  org.objectweb.cjdbc.common.shared.BackendState

public final class BackendState

extends java.lang.Object

This describes the different backend states

Version:

1.0

Author:

Nicolas Modrzyk , Emmanuel Cecchet

Field Summary

static int	BACKUPING The backend is in a restore process.
static int	DISABLED The backend cannot execute any requests
static int	DISABLING The backend is set for disabled.
static int	READ_DISABLED_WRITE_ENABLED The backend can execute write requests but not read requests
static int	READ_ENABLED_WRITE_DISABLED The backend can execute read requests, but not write requests
static int	READ_ENABLED_WRITE_ENABLED The backend can execute read and write requests
static int	RECOVERING The backend is loading data from a dump file
static int	REPLAYING Replaying request from the recovery log
static int	UNKNOWN Unknown backend state.

Constructor Summary

BackendState()

Methods inherited from class java.lang.Object

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

Field Detail

READ_ENABLED_WRITE_DISABLED

public static final int READ_ENABLED_WRITE_DISABLED

The backend can execute read requests, but not write requests

See Also:

Constant Field Values

READ_ENABLED_WRITE_ENABLED

public static final int READ_ENABLED_WRITE_ENABLED

The backend can execute read and write requests

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Constant Field Values

READ_DISABLED_WRITE_ENABLED

public static final int READ_DISABLED_WRITE_ENABLED

The backend can execute write requests but not read requests

See Also:

Constant Field Values

DISABLED

public static final int DISABLED

The backend cannot execute any requests

See Also:

Constant Field Values

RECOVERING

public static final int RECOVERING

The backend is loading data from a dump file

See Also:

Constant Field Values

DISABLING

public static final int DISABLING

The backend is set for disabled. It is finishing to execute open transactions

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Constant Field Values

BACKUPING

public static final int BACKUPING

The backend is in a restore process. The content of a backup file is being copied onto the backen

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Constant Field Values

UNKNOWN

public static final int UNKNOWN

Unknown backend state. This is used when the state of the backend cannot be determined properly. This is the state the backend is set to after a backup, restore or recovery failure.

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Constant Field Values

REPLAYING

public static final int REPLAYING

Replaying request from the recovery log

See Also:

Constant Field Values

Constructor Detail

BackendState

public BackendState()