org.mmbase.util

Enum LinkMap.Changes

java.lang.Object

java.lang.Enum<LinkMap.Changes>

org.mmbase.util.LinkMap.Changes

All Implemented Interfaces:

Serializable, Comparable<LinkMap.Changes>

Enclosing class:

LinkMap<K,V>

public static enum LinkMap.Changes
extends Enum<LinkMap.Changes>

Enum for the parameter of the constructor LinkMap(Map, Map, Changes)

Enum Constant Summary

Enum Constants

Enum Constant and Description
BOTH Changes are reflected in the both maps
CONSERVE Changes are reflected in the first map, but before that, the old value is copied to the second map (unless a mapping is already in that map).
FIRST Changes are reflected in the 'first' map only.
NONE No changes are allowed.
SECOND Changes are reflected in the 'second' map, map1 remains unmodified.

Method Summary

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

FIRST

public static final LinkMap.Changes FIRST

Changes are reflected in the 'first' map only. So they remain invisible if second maps contains the same key.

SECOND

public static final LinkMap.Changes SECOND

Changes are reflected in the 'second' map, map1 remains unmodified.

BOTH

public static final LinkMap.Changes BOTH

Changes are reflected in the both maps

CONSERVE

public static final LinkMap.Changes CONSERVE

Changes are reflected in the first map, but before that, the old value is copied to the second map (unless a mapping is already in that map). This effectively creates a unmodifiable map, but the wrapped map is modified anyways.

NONE

public static final LinkMap.Changes NONE

No changes are allowed. The map behaves as an unmodifiable map (throwing UnsupportedOperationException)

Method Detail

values

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

Returns:

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

valueOf

public static LinkMap.Changes 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