org.javalite.activejdbc.validation

Class UniquenessValidator

java.lang.Object

org.javalite.activejdbc.validation.ValidatorAdapter

org.javalite.activejdbc.validation.UniquenessValidator

All Implemented Interfaces:

Validator

public class UniquenessValidator
extends ValidatorAdapter

Naive uniqueness validator. If enabled, prevents adding a new record that has the same attribute if one already exists in the corresponding table.

Critique: in a high-load system, it might be possible to create duplicate records due to bad timing (another thread inserted a record after you tested for uniqueness, but before you inserted).

Suggestion: Use for small non-critical project. For real world projects it is recommended to maintain uniqueness with database indexes and unique keys.

Constructor Summary

Constructors

Constructor and Description
UniquenessValidator(String attribute)

Method Summary

Modifier and Type	Method and Description
void	validate(Model model) Called by framework when a Model.validate() method called.

Methods inherited from class org.javalite.activejdbc.validation.ValidatorAdapter

formatMessage, getMessage, setMessage

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

UniquenessValidator

public UniquenessValidator(String attribute)

Method Detail

validate

public void validate(Model model)

Description copied from interface: Validator

Called by framework when a Model.validate() method called.

Parameters:

model - model being validated.