Enum MapFeature

java.lang.Object

java.lang.Enum<MapFeature>

com.google.common.collect.testing.features.MapFeature

All Implemented Interfaces:

Feature<Map>, Serializable, Comparable<MapFeature>, java.lang.constant.Constable

@GwtCompatible
public enum MapFeature
extends Enum<MapFeature>
implements Feature<Map>

Optional features of classes derived from Map.

Author:

George van den Driessche

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static @interface	MapFeature.Require

Nested classes/interfaces inherited from class java.lang.Enum

Enum.EnumDesc<E extends Enum<E>>

Enum Constant Summary

Enum Constants

Enum Constant	Description
ALLOWS_ANY_NULL_QUERIES	The map does not throw NullPointerException on any null queries.
ALLOWS_NULL_ENTRY_QUERIES	The map does not throw NullPointerException on calls such as entrySet().contains(null) or entrySet().remove(null)
ALLOWS_NULL_KEY_QUERIES	The map does not throw NullPointerException on calls such as containsKey(null), get(null), keySet().contains(null) or remove(null).
ALLOWS_NULL_KEYS
ALLOWS_NULL_VALUE_QUERIES	The map does not throw NullPointerException on calls such as containsValue(null), values().contains(null) or values().remove(null).
ALLOWS_NULL_VALUES
FAILS_FAST_ON_CONCURRENT_MODIFICATION
GENERAL_PURPOSE
REJECTS_DUPLICATES_AT_CREATION	Indicates that the constructor or factory method of a map, usually an immutable map, throws an IllegalArgumentException when presented with duplicate keys instead of discarding all but one.
RESTRICTS_KEYS
RESTRICTS_VALUES
SUPPORTS_PUT
SUPPORTS_REMOVE

Method Summary

Modifier and Type	Method	Description
Set<Feature<? super Map>>	getImpliedFeatures()	Returns the set of features that are implied by this feature.
static MapFeature	valueOf(String name)	Returns the enum constant of this type with the specified name.
static MapFeature[]	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, describeConstable, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Details

ALLOWS_NULL_KEY_QUERIES

public static final MapFeature ALLOWS_NULL_KEY_QUERIES

The map does not throw NullPointerException on calls such as containsKey(null), get(null), keySet().contains(null) or remove(null).

ALLOWS_NULL_KEYS

public static final MapFeature ALLOWS_NULL_KEYS

ALLOWS_NULL_VALUE_QUERIES

public static final MapFeature ALLOWS_NULL_VALUE_QUERIES

The map does not throw NullPointerException on calls such as containsValue(null), values().contains(null) or values().remove(null).

ALLOWS_NULL_VALUES

public static final MapFeature ALLOWS_NULL_VALUES

ALLOWS_NULL_ENTRY_QUERIES

public static final MapFeature ALLOWS_NULL_ENTRY_QUERIES

The map does not throw NullPointerException on calls such as entrySet().contains(null) or entrySet().remove(null)

ALLOWS_ANY_NULL_QUERIES

public static final MapFeature ALLOWS_ANY_NULL_QUERIES

The map does not throw NullPointerException on any null queries.

See Also:

• ALLOWS_NULL_KEY_QUERIES
• ALLOWS_NULL_VALUE_QUERIES
• ALLOWS_NULL_ENTRY_QUERIES

RESTRICTS_KEYS

public static final MapFeature RESTRICTS_KEYS

RESTRICTS_VALUES

public static final MapFeature RESTRICTS_VALUES

SUPPORTS_PUT

public static final MapFeature SUPPORTS_PUT

SUPPORTS_REMOVE

public static final MapFeature SUPPORTS_REMOVE

FAILS_FAST_ON_CONCURRENT_MODIFICATION

public static final MapFeature FAILS_FAST_ON_CONCURRENT_MODIFICATION

REJECTS_DUPLICATES_AT_CREATION

public static final MapFeature REJECTS_DUPLICATES_AT_CREATION

Indicates that the constructor or factory method of a map, usually an immutable map, throws an IllegalArgumentException when presented with duplicate keys instead of discarding all but one.

GENERAL_PURPOSE

public static final MapFeature GENERAL_PURPOSE

Method Details

values

public static MapFeature[] values()

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

Returns:

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

valueOf

public static MapFeature 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

getImpliedFeatures

public Set<Feature<? super Map>> getImpliedFeatures()

Description copied from interface: Feature

Returns the set of features that are implied by this feature.

Specified by:

getImpliedFeatures in interface Feature<Map>