com.neeve.service.cdc

Class Runner

java.lang.Object

com.neeve.service.cdc.Runner

All Implemented Interfaces:

Runnable

Direct Known Subclasses:

Runner, Runner, Runner

public abstract class Runner
extends Object
implements Runnable

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	Runner.OpeningState
static class	Runner.State

Field Summary

Fields

Modifier and Type	Field and Description
protected int	_cdcRestartAttempts
protected long	_cdcRestartFrequency

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	Runner(Boolean enabled, Boolean disableOnFail, int pollAlertFrequency, String logName, DbPersister dbPersister, Alerter alerter, ICdcTracer tracer)

Method Summary

Modifier and Type	Method and Description
void	close() Close a CDC runner
void	disable() Disable CDC on the underlying log
void	enable() Enable CDC on the underlying log
void	info() Return CDC related info
void	open(boolean async) Open the CDC runner
Runner.OpeningState	openingState() Get a CDC runner's opening sub state
void	run() Overriden implementation of Runnable.run()
void	start() Start the CDC runner
Runner.State	state() Get a CDC runner's current state
void	stop(boolean async) Stop the CDC runner

Methods inherited from class java.lang.Object

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

Field Detail

_cdcRestartFrequency

@Inject
protected long _cdcRestartFrequency

_cdcRestartAttempts

@Inject
protected int _cdcRestartAttempts

Constructor Detail

Runner

protected Runner(Boolean enabled,
                 Boolean disableOnFail,
                 int pollAlertFrequency,
                 String logName,
                 DbPersister dbPersister,
                 Alerter alerter,
                 ICdcTracer tracer)
          throws Exception

Throws:

Exception

Method Detail

state

public final Runner.State state()

Get a CDC runner's current state

Threading:

This method is not safe for concurrent access with any other public API method of this class.

openingState

public final Runner.OpeningState openingState()

Get a CDC runner's opening sub state

Threading:

This method is not safe for concurrent access with any other public API method of this class.

This method returns null if the runner is in Init state and the last opening state if the state is anything other than Init or Opening.

open

public final void open(boolean async)
                throws Exception

Open the CDC runner

Parameters:

async - Whether to submit the open to occur in the background

Throws:

Exception

Threading:

This method is not safe for concurrent access with any other public API method of this class.

This method opens a CDC runner. The open process opens the DB persister associated with the runner and ensures that the application's transaction log file is present and ready for operation. If the transaction log is absent, then the open uses the DB persister to materializes the log from the database

start

public final void start()

Start the CDC runner

Threading:

This method is not safe for concurrent access with any other public API method of this class.

stop

public final void stop(boolean async)

Stop the CDC runner

Threading:

This method is not safe for concurrent access with any other public API method of this class.

enable

public final void enable()

Enable CDC on the underlying log

disable

public final void disable()

Disable CDC on the underlying log

info

public final void info()

Return CDC related info

close

public final void close()

Close a CDC runner

Threading:

This method is not safe for concurrent access with any other public API method of this class.

A CDC runner must be successfully shut down prior to close

run

public final void run()

Overriden implementation of Runnable.run()

Specified by:

run in interface Runnable