io.ray.streaming.operator

Enum ChainStrategy

java.lang.Object

java.lang.Enum<ChainStrategy>

io.ray.streaming.operator.ChainStrategy

All Implemented Interfaces:

Serializable, Comparable<ChainStrategy>

public enum ChainStrategy
extends Enum<ChainStrategy>

Chain strategy for streaming operators. Chained operators are run in the same thread.

Enum Constant Summary

Enum Constants

Enum Constant and Description
ALWAYS Operators will be chained together when possible.
HEAD The operator won't be chained with preceding operators, but maybe chained with succeeding operators.
NEVER The operator won't be chained with any operator.

Method Summary

Modifier and Type	Method and Description
static ChainStrategy	valueOf(String name) Returns the enum constant of this type with the specified name.
static ChainStrategy[]	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

HEAD

public static final ChainStrategy HEAD

The operator won't be chained with preceding operators, but maybe chained with succeeding operators.

ALWAYS

public static final ChainStrategy ALWAYS

Operators will be chained together when possible.

NEVER

public static final ChainStrategy NEVER

The operator won't be chained with any operator.

Method Detail

values

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

Returns:

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

valueOf

public static ChainStrategy 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