Package org.apache.flink.streaming.api.functions.aggregation

Enum AggregationFunction.AggregationType

java.lang.Object

java.lang.Enum<AggregationFunction.AggregationType>

org.apache.flink.streaming.api.functions.aggregation.AggregationFunction.AggregationType

All Implemented Interfaces:

Serializable, Comparable<AggregationFunction.AggregationType>

Enclosing class:

AggregationFunction<T>

public static enum AggregationFunction.AggregationType
extends Enum<AggregationFunction.AggregationType>

Aggregation types that can be used on a windowed stream or keyed stream.

Enum Constant Summary

Enum Constants

Enum Constant	Description
MAX
MAXBY
MIN
MINBY
SUM

Method Summary

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

SUM

public static final AggregationFunction.AggregationType SUM

MIN

public static final AggregationFunction.AggregationType MIN

MAX

public static final AggregationFunction.AggregationType MAX

MINBY

public static final AggregationFunction.AggregationType MINBY

MAXBY

public static final AggregationFunction.AggregationType MAXBY

Method Detail

values

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

Returns:

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

valueOf

public static AggregationFunction.AggregationType 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