org.apache.river.mahalo.log

Class MultiLogManager

java.lang.Object

org.apache.river.mahalo.log.MultiLogManager

All Implemented Interfaces:

net.jini.admin.Administrable, org.apache.river.admin.DestroyAdmin, FileModes, LogManager, MultiLogManagerAdmin

public class MultiLogManager
extends Object
implements LogManager, FileModes, net.jini.admin.Administrable, MultiLogManagerAdmin

Author:

Sun Microsystems, Inc.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	MultiLogManager.LogRemovalManager Callback interface for log files to remove themselves from this manager

Field Summary

Fields inherited from interface org.apache.river.mahalo.log.FileModes

RDONLY, READWRITE, WRONLY

Constructor Summary

Constructors

Constructor and Description
MultiLogManager() Create a non-persistent MultiLogManager.
MultiLogManager(LogRecovery client, String path) Create a MultiLogManager.

Method Summary

Modifier and Type	Method and Description
void	destroy() Clean up all LogFile objects on behalf of caller.
Object	getAdmin() Retrieves the administration interface for the MultiLogManager
ClientLog	logFor(long cookie) Factory method which returns a Log interface which can be used to create persistent records which collectively represent a system's state.
void	recover() Consumes the log file and re-constructs a system's state.

Methods inherited from class java.lang.Object

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

Constructor Detail

MultiLogManager

public MultiLogManager()

Create a non-persistent MultiLogManager.

MultiLogManager

public MultiLogManager(LogRecovery client,
                       String path)

Create a MultiLogManager.

Parameters:

client - who to inform during recovery.

path - where to store logging information.

Method Detail

logFor

public ClientLog logFor(long cookie)
                 throws LogException

Description copied from interface: LogManager

Factory method which returns a Log interface which can be used to create persistent records which collectively represent a system's state.

Specified by:

logFor in interface LogManager

Parameters:

cookie - identifier representing the information being logged.

Throws:

LogException

recover

public void recover()
             throws LogException

Consumes the log file and re-constructs a system's state.

Specified by:

recover in interface LogManager

Throws:

LogException

getAdmin

public Object getAdmin()

Retrieves the administration interface for the MultiLogManager

Specified by:

getAdmin in interface net.jini.admin.Administrable

Specified by:

getAdmin in interface LogManager

Returns:

an object that implements whatever administration interfaces are appropriate for the particular service.

See Also:

Administrable

destroy

public void destroy()

Clean up all LogFile objects on behalf of caller.

Specified by:

destroy in interface org.apache.river.admin.DestroyAdmin

Specified by:

destroy in interface MultiLogManagerAdmin

See Also:

DestroyAdmin, FileSystem