com.sun.grid.jsv

Class CheckpointSpecifier

java.lang.Object

com.sun.grid.jsv.CheckpointSpecifier

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable

public final class CheckpointSpecifier
extends java.lang.Object
implements java.lang.Cloneable, java.io.Serializable

The CheckpointSpecifier class represents the checkpointing environment settings for a job, including the name of the checkpoint environment to use and the frequency with which checkpoints should be taken.

Since:

6.2u5

See Also:

JobDescription.getCheckpointSpecifier(), JobDescription.setCheckpointSpecifier(com.sun.grid.jsv.CheckpointSpecifier), Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	NEVER_STR String indicating that checkpoints should never be taken.
static byte	ON_MIN_CPU_INTERVAL Code indicating that checkpoints should be taken periodically at the minimum CPU interval as specified by the queue.
static java.lang.String	ON_MIN_CPU_INTERVAL_STR String indicating that checkpoints should be taken periodically at the minimum CPU interval as specified by the queue.
static byte	ON_SHUTDOWN Code indicating that checkpoints should be taken when the execd shuts down
static java.lang.String	ON_SHUTDOWN_STR Value indicating that checkpoints should be taken when the execd shuts down
static byte	ON_SUSPEND Code indicating that checkpoints should be taken the job is suspended.
static java.lang.String	ON_SUSPEND_STR String indicating that checkpoints should be taken the job is suspended.

Constructor Summary

Constructors

Constructor and Description
CheckpointSpecifier()

Method Summary

Methods

Modifier and Type	Method and Description
CheckpointSpecifier	clone()
boolean	equals(java.lang.Object obj)
long	getInterval() Get the number of seconds between checkpoints.
java.lang.String	getName() Get the name of the checkpointing environment.
byte	getOccasion() Get a byte value that represents the occasions when the job should be checkpointed.
java.lang.String	getOccasionString() Get an occasion string that represents the occasions when the job should be checkpointed.
int	hashCode()
byte	never() Indicate that a checkpoint should never be taken.
boolean	onMinCpuInterval(boolean set) Set whether a checkpoint should be taken periodically at the minimum CPU interval as specified by the queue.
boolean	onShutdown(boolean set) Set whether a checkpoint should be taken when the execution daemon shuts down.
boolean	onSuspend(boolean set) Set whether a checkpoint should be taken when the job is suspended.
long	setInterval(int hours, int minutes, int seconds) Set the interval at which checkpoints should be taken.
long	setInterval(long sec) Set the interval at which checkpoints should be taken.
void	setName(java.lang.String name) Set the name of the checkpointing environment.
void	setOccasion(java.lang.String value) Set the occasions when the job should be checkpointed according to a a String composed by combining the string values for the occasions when the job should be checkpointed.
java.lang.String	toString()

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

NEVER_STR

public static final java.lang.String NEVER_STR

String indicating that checkpoints should never be taken.

See Also:

Constant Field Values

ON_SHUTDOWN

public static final byte ON_SHUTDOWN

Code indicating that checkpoints should be taken when the execd shuts down

See Also:

Constant Field Values

ON_SHUTDOWN_STR

public static final java.lang.String ON_SHUTDOWN_STR

Value indicating that checkpoints should be taken when the execd shuts down

See Also:

Constant Field Values

ON_MIN_CPU_INTERVAL

public static final byte ON_MIN_CPU_INTERVAL

Code indicating that checkpoints should be taken periodically at the minimum CPU interval as specified by the queue.

See Also:

Constant Field Values

ON_MIN_CPU_INTERVAL_STR

public static final java.lang.String ON_MIN_CPU_INTERVAL_STR

String indicating that checkpoints should be taken periodically at the minimum CPU interval as specified by the queue.

See Also:

Constant Field Values

ON_SUSPEND

public static final byte ON_SUSPEND

Code indicating that checkpoints should be taken the job is suspended.

See Also:

Constant Field Values

ON_SUSPEND_STR

public static final java.lang.String ON_SUSPEND_STR

String indicating that checkpoints should be taken the job is suspended.

See Also:

Constant Field Values

Constructor Detail

CheckpointSpecifier

public CheckpointSpecifier()

Method Detail

getName

public java.lang.String getName()

Get the name of the checkpointing environment.

Returns:

the name

setName

public void setName(java.lang.String name)

Set the name of the checkpointing environment.

Parameters:

name - the name

onShutdown

public boolean onShutdown(boolean set)

Set whether a checkpoint should be taken when the execution daemon shuts down. Setting this value to true will also set the checkpointing interval to 0.

Parameters:

set - whether to take a checkpoint

Returns:

the previous value

See Also:

getInterval()

onMinCpuInterval

public boolean onMinCpuInterval(boolean set)

Set whether a checkpoint should be taken periodically at the minimum CPU interval as specified by the queue. Setting this value to true will also set the checkpointing interval to 0.

Parameters:

set - whether to take a checkpoint

Returns:

the previous value

See Also:

getInterval()

onSuspend

public boolean onSuspend(boolean set)

Set whether a checkpoint should be taken when the job is suspended. Setting this value to true will also set the checkpointing interval to 0.

Parameters:

set - whether to take a checkpoint

Returns:

the previous value

See Also:

getInterval()

never

public byte never()

Indicate that a checkpoint should never be taken.

Returns:

the previous occasion value, as would be returned by getOccasion()

See Also:

getOccasion()

setInterval

public long setInterval(long sec)

Set the interval at which checkpoints should be taken. If the value is 0, periodic checkpoints will not be taken. If the value is non-zero, the checkpoint occasion will be set to "never".

Parameters:

sec - the number of seconds between checkpoints

Returns:

the previous value

See Also:

getOccasion()

setInterval

public long setInterval(int hours,
               int minutes,
               int seconds)

Set the interval at which checkpoints should be taken. If the value is 0, periodic checkpoints will not be taken. If the value is non-zero, the checkpoint occasion will be set to "never".

Parameters:

hours - the number of hours between checkpoints -- this value is combined to the number of minutes and seconds

minutes - the number of minutes between checkpoints -- this value is combined to the number of hours and seconds

seconds - the number of seconds between checkpoints -- this value is combined to the number of minutes and hours

Returns:

the previous value

See Also:

getOccasion()

getInterval

public long getInterval()

Get the number of seconds between checkpoints.

Returns:

the number of seconds

getOccasion

public byte getOccasion()

Get a byte value that represents the occasions when the job should be checkpointed. This value is composed by ORing together the code for the occasions when the job should be checkpointed. If the occasion value is non-zero, the checkpointing interval will be set to 0.

Returns:

the occasion value

See Also:

ON_MIN_CPU_INTERVAL, ON_SHUTDOWN, ON_SUSPEND, getInterval()

setOccasion

public void setOccasion(java.lang.String value)

Set the occasions when the job should be checkpointed according to a a String composed by combining the string values for the occasions when the job should be checkpointed. If the occasion value is not NEVER, the checkpointing interval will be set to 0.

Parameters:

value - the occasion string

See Also:

ON_MIN_CPU_INTERVAL_STR, ON_SHUTDOWN_STR, ON_SUSPEND_STR, getInterval()

getOccasionString

public java.lang.String getOccasionString()

Get an occasion string that represents the occasions when the job should be checkpointed. This value is composed by combining the string values for the occasions when the job should be checkpointed.

Returns:

the occasion string

See Also:

ON_MIN_CPU_INTERVAL_STR, ON_SHUTDOWN_STR, ON_SUSPEND_STR

equals

public boolean equals(java.lang.Object obj)

Overrides:

equals in class java.lang.Object

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

clone

public CheckpointSpecifier clone()

Overrides:

clone in class java.lang.Object

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object