org.axonframework.modelling.command

Enum AggregateCreationPolicy

java.lang.Object

java.lang.Enum<AggregateCreationPolicy>

org.axonframework.modelling.command.AggregateCreationPolicy

All Implemented Interfaces:

Serializable, Comparable<AggregateCreationPolicy>

public enum AggregateCreationPolicy
extends Enum<AggregateCreationPolicy>

Enumeration containing the possible creation policies for aggregates.

Since:

4.3

Author:

Marc Gathier

Enum Constant Summary

Enum Constants

Enum Constant and Description
ALWAYS Always create a new instance of the aggregate on invoking the method.
CREATE_IF_MISSING Create a new instance of the aggregate when it is not found.
NEVER Expect instance of the aggregate to exist.

Method Summary

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

ALWAYS

public static final AggregateCreationPolicy ALWAYS

Always create a new instance of the aggregate on invoking the method. Fail if already exists.

CREATE_IF_MISSING

public static final AggregateCreationPolicy CREATE_IF_MISSING

Create a new instance of the aggregate when it is not found.

NEVER

public static final AggregateCreationPolicy NEVER

Expect instance of the aggregate to exist. Fail if missing.

Method Detail

values

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

Returns:

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

valueOf

public static AggregateCreationPolicy 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