com.amazonaws.services.simpleworkflow.flow.annotations

Annotation Type WorkflowComponentImplementationVersion

@Retention(value=RUNTIME)
 @Target(value=ANNOTATION_TYPE)
public @interface WorkflowComponentImplementationVersion

Specifies supported implementation versions of a component used to implement workflow definition. See WorkflowContext.isImplementationVersion(String, int) for implementation version overview.

To be used as a parameter to WorkflowComponentImplementationVersions.

Author:

fateev

Required Element Summary

Required Elements

Modifier and Type	Required Element and Description
String	componentName Name of a versioned component.
int	maximumSupported Maximum code implementation version supported by the workflow definition code.

Optional Element Summary

Optional Elements

Modifier and Type	Optional Element and Description
int	maximumAllowed Maximum version that newly executed code path can support.
int	minimumSupported Minimum code implementation version supported by the workflow definition code.

Element Detail

componentName

public abstract String componentName

Name of a versioned component.

Returns:

component name

maximumSupported

public abstract int maximumSupported

Maximum code implementation version supported by the workflow definition code. Attempt to replay history that was created with a higher implementation version must fail the decision.

Returns:

maximum supported version number

minimumSupported

public abstract int minimumSupported

Minimum code implementation version supported by the workflow definition code. Attempt to replay history that was created with a lower implementation version must fail the decision.

Returns:

minimum version number, defaults to 0

Default:

0

maximumAllowed

public abstract int maximumAllowed

Maximum version that newly executed code path can support. This value is usually set to a maximumSupported version of the code that is being upgraded from. After new workflow code is deployed to every worker this value is changed to the maximumSupported value of the new code.

To avoid code change after the deployment consider changing maximum allowed implementation version through WorkflowWorker.setMaximumAllowedComponentImplementationVersions(java.util.Map).

Returns:

maximum allowed version, defaults to Integer.MAX_VALUE

Default:

2147483647