org.bitbucket.cowwoc.requirements

Interface OptionalRequirements

All Superinterfaces:

Isolatable<OptionalRequirements>, ObjectRequirementsSpi<OptionalRequirements,Optional<?>>

public interface OptionalRequirements
extends ObjectRequirementsSpi<OptionalRequirements,Optional<?>>, Isolatable<OptionalRequirements>

Verifies requirements of an Optional parameter.

Author:

Gili Tzabari

Method Summary

Modifier and Type	Method and Description
OptionalRequirements	isEmpty() Ensures that the parameter is empty.
OptionalRequirements	isPresent() Ensures that the parameter is present.

Methods inherited from interface org.bitbucket.cowwoc.requirements.spi.ObjectRequirementsSpi

isEqualTo, isEqualTo, isInstanceOf, isNotEqualTo, isNotEqualTo, isNotNull, isNull, withContext, withException

Methods inherited from interface org.bitbucket.cowwoc.requirements.Isolatable

isolate

Method Detail

isEmpty

OptionalRequirements isEmpty()
                      throws IllegalArgumentException

Ensures that the parameter is empty.

Returns:

this

Throws:

IllegalArgumentException - if the value is present

isPresent

OptionalRequirements isPresent()
                        throws IllegalArgumentException

Ensures that the parameter is present.

Returns:

this

Throws:

IllegalArgumentException - if the value is not present