Package com.tnsai.actions.contracts

Interface ActionContract

public interface ActionContract

Optional contract interface for roles that want to enforce pre/post conditions.

Method Summary

Modifier and Type	Method	Description
default void	validateInvariants()	Runs before and after to ensure invariants hold.
default void	validatePostConditions(ActionMetadata action, Object result)	Runs after the action returns.
default void	validatePreConditions(ActionMetadata action, Map<String,Object> parameters)	Runs before the action is invoked.

Method Details

validatePreConditions

default void validatePreConditions(ActionMetadata action,
 Map<String,Object> parameters)
                            throws ValidationException

Runs before the action is invoked. Throw ValidationException to cancel execution.

Throws:

ValidationException

validatePostConditions

default void validatePostConditions(ActionMetadata action,
 Object result)
                             throws ValidationException

Runs after the action returns. Throw ValidationException to signal invalid result.

Throws:

ValidationException

validateInvariants

default void validateInvariants()
                         throws ValidationException

Runs before and after to ensure invariants hold.

Throws:

ValidationException