org.gridgain.grid.kernal

Enum GridClosureCallMode

java.lang.Object

java.lang.Enum<GridClosureCallMode>

org.gridgain.grid.kernal.GridClosureCallMode

All Implemented Interfaces:

Serializable, Comparable<GridClosureCallMode>

public enum GridClosureCallMode
extends Enum<GridClosureCallMode>

Distribution modes for one or more closures executed via Grid.call(...) methods. In other words, given a set of jobs (closures) and set of grid nodes this enumeration provides three simple modes of how these jobs will be mapped to the nodes.

Note that if you need to provide custom distribution logic you need to implement GridComputeTask interface that allows you to customize every aspect of a distributed Java code execution such as mapping, load balancing, failover, collision resolution, continuations, etc.

Enum Constant Summary

Enum Constants

Enum Constant and Description
BALANCE In this mode closures will be executed on the nodes provided by the default load balancer.
BROADCAST In this mode all closures will be executed on each node.

Method Summary

Methods

Modifier and Type	Method and Description
static GridClosureCallMode	fromOrdinal(byte ord) Efficiently gets enumerated value from its ordinal.
static GridClosureCallMode	valueOf(String name) Returns the enum constant of this type with the specified name.
static GridClosureCallMode[]	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

BROADCAST

public static final GridClosureCallMode BROADCAST

In this mode all closures will be executed on each node. This mode essentially allows to broadcast executions to all nodes.

BALANCE

public static final GridClosureCallMode BALANCE

In this mode closures will be executed on the nodes provided by the default load balancer.

NOTE: this mode must be used for all cache affinity routing. Load balance manager has specific logic to handle co-location between compute grid jobs and in-memory data grid data. All other modes will not work for affinity-based co-location.

Method Detail

values

public static GridClosureCallMode[] 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 (GridClosureCallMode c : GridClosureCallMode.values())
    System.out.println(c);

Returns:

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

valueOf

public static GridClosureCallMode 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

fromOrdinal

@Nullable
public static GridClosureCallMode fromOrdinal(byte ord)

Efficiently gets enumerated value from its ordinal.

Parameters:

ord - Ordinal value.

Returns:

Enumerated value.