NotRule

Validation rule used to negate another rule.

Implements: IValidationRule

Description

The NotRule class allows you to negate a rule. Thus, when the embedded rule returns errors, then the negated rule returns no errors and vice versa.

Constructors

Creates a new validation rule and sets its values

public NotRule(IValidationRule rule)

Instance methods

validate

Validates a given value against this rule.

public void validate(Schema path, Schema schema, Object value, List<ValidationResult> results)

  • path: String - dot notation path to the value.
  • schema: Schema - schema this rule is called from
  • value: Object - value to be validated.
  • results: List<ValidationResult> - list with validation results to add new results.

Examples

{@code
  Schema schema = new Schema()
       .withRule(new NotRule(
           new ValueComparisonRule("EQ", 1)
       ));
 
  schema.validate(1);          // Result: error
  schema.validate(5);          // Result: no error
  }

See also