org.mmbase.applications.crontab

Enum CronEntry.Type

java.lang.Object

java.lang.Enum<CronEntry.Type>

org.mmbase.applications.crontab.CronEntry.Type

All Implemented Interfaces:

Serializable, Comparable<CronEntry.Type>

Enclosing class:

CronEntry

public static enum CronEntry.Type
extends Enum<CronEntry.Type>

Enum Constant Summary

Enum Constants

Enum Constant and Description
BALANCE A job of this type runs exactly once in the load balanced mmbase cluster.
BALANCE_MUSTBEONE As BALANCED, but no job is started as the previous was not yet finished.
CANBEMORE The 'can be more' type job is like a 'must be one' job, but the run() method of such jobs is even called (when scheduled) if it itself is still running.
DISABLED Don't run at all
MUSTBEONE The default job type is the 'must be one' job.
SHORT A CronEntry of this type will run without the overhead of an extra thread.

Field Summary

Fields

Modifier and Type	Field and Description
static CronEntry.Type	DEFAULT

Method Summary

Modifier and Type	Method and Description
static CronEntry.Type	valueOf(int i)
static CronEntry.Type	valueOf(String name) Returns the enum constant of this type with the specified name.
static CronEntry.Type[]	values() Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

SHORT

public static final CronEntry.Type SHORT

A CronEntry of this type will run without the overhead of an extra thread. This does mean though that such a job will halt the cron-daemon itself. Such jobs must therefore be extremely short-living, and used with care (only if you have a lot of those which must run very often) Since we use a thread-pool for other types of jobs now any way, it is doubtful if it is ever useful to opt for this type.

MUSTBEONE

public static final CronEntry.Type MUSTBEONE

The default job type is the 'must be one' job. Such jobs are not started if the same job is still running. They are wrapped in a separate thread, so other jobs can be started during the execution of this one.

CANBEMORE

public static final CronEntry.Type CANBEMORE

The 'can be more' type job is like a 'must be one' job, but the run() method of such jobs is even called (when scheduled) if it itself is still running.

DISABLED

public static final CronEntry.Type DISABLED

Don't run at all

BALANCE

public static final CronEntry.Type BALANCE

A job of this type runs exactly once in the load balanced mmbase cluster. Before the job is started, communication between mmbase's in the server will be done, to negotiate who is going to do it.

BALANCE_MUSTBEONE

public static final CronEntry.Type BALANCE_MUSTBEONE

As BALANCED, but no job is started as the previous was not yet finished.

Field Detail

DEFAULT

public static CronEntry.Type DEFAULT

Method Detail

values

public static CronEntry.Type[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (CronEntry.Type c : CronEntry.Type.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static CronEntry.Type valueOf(String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum type has no constant with the specified name

NullPointerException - if the argument is null

valueOf

public static CronEntry.Type valueOf(int i)