com.asakusafw.vocabulary.flow.graph

Enum ObservationCount

java.lang.Object

java.lang.Enum<ObservationCount>

com.asakusafw.vocabulary.flow.graph.ObservationCount

All Implemented Interfaces:

FlowElementAttribute, Serializable, Comparable<ObservationCount>

public enum ObservationCount
extends Enum<ObservationCount>
implements FlowElementAttribute

Represents an operator constraint how many each operator can perform for individual data-sets.

Enum Constant Summary

Enum Constants

Enum Constant and Description
AT_LEAST_ONCE The operator must perform at least once for the data-set.
AT_MOST_ONCE The operator must perform at most once for the data-set.
DONT_CARE Don't care.
EXACTLY_ONCE The operator must perform exactly once for the data-set.

Field Summary

Fields

Modifier and Type	Field and Description
boolean	atLeastOnce The operator must perform at least once.
boolean	atMostOnce The operator must perform at most once.

Method Summary

Modifier and Type	Method and Description
abstract ObservationCount	and(ObservationCount other) Returns the combined constraint.
String	toString()
static ObservationCount	valueOf(String name) Returns the enum constant of this type with the specified name.
static ObservationCount[]	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, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface com.asakusafw.vocabulary.flow.graph.FlowElementAttribute

getDeclaringClass

Enum Constant Detail

DONT_CARE

public static final ObservationCount DONT_CARE

Don't care.

AT_MOST_ONCE

public static final ObservationCount AT_MOST_ONCE

The operator must perform at most once for the data-set.

AT_LEAST_ONCE

public static final ObservationCount AT_LEAST_ONCE

The operator must perform at least once for the data-set.

EXACTLY_ONCE

public static final ObservationCount EXACTLY_ONCE

The operator must perform exactly once for the data-set.

Field Detail

atMostOnce

public final boolean atMostOnce

The operator must perform at most once.

atLeastOnce

public final boolean atLeastOnce

The operator must perform at least once.

Method Detail

values

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

Returns:

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

valueOf

public static ObservationCount 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

and

public abstract ObservationCount and(ObservationCount other)

Returns the combined constraint.

Parameters:

other - the target constraint

Returns:

the combined result

Throws:

IllegalArgumentException - if the parameter is null

toString

public String toString()

Overrides:

toString in class Enum<ObservationCount>