PropertiesComparisonRule

Validation rule that compares two object properties.

Implements: IValidationRule

Description

The PropertiesComparisonRule class allows you to create a validation rule used to compare two object’s properties.

Constructors

Creates a new validation rule and sets its arguments. See ObjectComparator.compare

public PropertiesComparisonRule(String property1, String operation, String property2)

property1: String - name of the first property to compare.
operation: String - comparison operation: "==" ("=", “EQ”), “!= " ("<>”, “NE”); “<"/">” (“LT”/“GT”), “<="/">=” (“LE”/“GE”); “LIKE”.
property2: String - name of the second property to compare.

Instance methods

validate

Validates a given value against this rule.

public void validate(String path, [Schema](../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 ObjectSchema().withRule(new PropertiesComparisonRule("field1", "NE", "field2"));
 
  schema.validate(Map.of("field1", 1, "field2", 2)); // Result: no errors
  schema.validate(Map.of("field1", 1, "field2", 1)); // Result: field1 shall not be equal to field2
  schema.validate(Map.of()); // Result: no errors
 
  }                          // Result: no errors

See also

IValidationRule