Package org.apache.ignite.internal

Enum 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 ComputeTask 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 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 @Nullable GridClosureCallMode fromOrdinal​(byte ord)
        Efficiently gets enumerated value from its ordinal.
        Parameters:
        ord - Ordinal value.
        Returns:
        Enumerated value.