ValidatorConstraint (GORM for Rx 8.1.2)

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Method

org.grails.datastore.gorm.validation.constraints.ValidatorConstraint

```
public class ValidatorConstraint
extends AbstractConstraint
```
A constraint class that validates using a user-supplied closure.

The Closure will receive one or two parameters containing the new value of the property and the object on which the validation is being performed. The value is always the first parameterm and the object is the second. These parameters must be type compatible with the value of the property and constrained class.

The Closure can return any of:
- NULL to indicate success
- true to indicate success
- false to indicate a failure, with the default failure message
- a string to indicate a failure with the specific error code which will be appended to the prefix for the constrained class and property i.e. classname.propertyname.stringfromclosurehere
- a list containing an error code and any other arguments for the error message. The error code will be appended to the standard classname.propertyname prefix and the arguments made available to the error message as parameters numbered 3 onwards.
Authors:
Marc Palmer
Graeme Rocher
Since:
6.0

Nested Class Summary

Nested classes
Modifiers	Name	Description
`private static class`	`ValidatorConstraint.ValidatorDelegate`

Field Summary

Fields
Modifiers	Name	Description
`private int`	`numValidatorParams`
`private groovy.lang.Closure<?>`	`validator`

Inherited fields
Fields inherited from class	Fields
`class AbstractConstraint`	`classShortName, constraintOwningClass, constraintParameter, constraintPropertyName, fullQualifiedConstraintErrorCode, fullQualifiedPrefix, messageSource, shortNameConstraintErrorCode, shortNamePrefix`

Constructor Summary

Constructors
Constructor and description
`ValidatorConstraint (java.lang.Class<?> constraintOwningClass, java.lang.String constraintPropertyName, java.lang.Object constraintParameter, org.springframework.context.MessageSource messageSource)`

Methods Summary

Methods
Type Params	Return Type	Name and description
	`public java.lang.String`	`getName()`
	`protected void`	`processValidate(java.lang.Object target, java.lang.Object propertyValue, org.springframework.validation.Errors errors)`
	`protected boolean`	`skipBlankValues()`
	`protected boolean`	`skipNullValues()`
	`public boolean`	`supports(java.lang.Class type)`
	`protected java.lang.Object`	`validateParameter(java.lang.Object constraintParameter)`

Inherited Methods Summary

Inherited Methods
Methods inherited from class	Name
`class AbstractConstraint`	`checkState, getDefaultMessage, getParameter, getPropertyName, getPropertyValue, isValid, processValidate, rejectValue, rejectValue, rejectValue, rejectValue, rejectValue, rejectValueWithDefaultMessage, skipBlankValues, skipNullValues, toString, validate, validateParameter`

- Field Detail
  - private final int numValidatorParams
  - private final groovy.lang.Closure<?> validator
- Constructor Detail
  - public ValidatorConstraint(java.lang.Class<?> constraintOwningClass, java.lang.String constraintPropertyName, java.lang.Object constraintParameter, org.springframework.context.MessageSource messageSource)
- Method Detail
  - public java.lang.String getName()
  - @java.lang.Override protected void processValidate(java.lang.Object target, java.lang.Object propertyValue, org.springframework.validation.Errors errors)
  - @java.lang.Override protected boolean skipBlankValues()
  - @java.lang.Override protected boolean skipNullValues()
  - @java.lang.SuppressWarnings("rawtypes") public boolean supports(java.lang.Class type)
  - @java.lang.Override protected java.lang.Object validateParameter(java.lang.Object constraintParameter)

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Groovy Documentation