org.apache.tamaya.inject.api

Enum LoadPolicy

java.lang.Object

java.lang.Enum<LoadPolicy>

org.apache.tamaya.inject.api.LoadPolicy

All Implemented Interfaces:

Serializable, Comparable<LoadPolicy>

public enum LoadPolicy
extends Enum<LoadPolicy>

Available policies that describe how changes affecting configured values are published/reinjected for a DynamicValue. The policy also affects the cases were any configured listeners/listener methods are called for propagation current configuration changes.

Enum Constant Summary

Enum Constants

Enum Constant and Description
ALWAYS The configuration value is evaluated evertime it is accessed.
INITIAL The configuration keys is evaluated once, when the owning component is loaded/configured, but never updated later.
LAZY The configuration keys is evaluated exactly once on its first access/use lazily, but never updated later.

Method Summary

Methods

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

INITIAL

public static final LoadPolicy INITIAL

The configuration keys is evaluated once, when the owning component is loaded/configured, but never updated later.

LAZY

public static final LoadPolicy LAZY

The configuration keys is evaluated exactly once on its first access/use lazily, but never updated later.

See Also:

DynamicValue.get(), DynamicValue.commitAndGet()

ALWAYS

public static final LoadPolicy ALWAYS

The configuration value is evaluated evertime it is accessed.

Method Detail

values

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

Returns:

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

valueOf

public static LoadPolicy 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