Module jakarta.validation
Package jakarta.validation

Class Validation

java.lang.Object
jakarta.validation.Validation
public class Validation extends Object
This class is the entry point for Jakarta Validation.

There are three ways to bootstrap it:

  • The easiest approach is to build the default ValidatorFactory. 
     ValidatorFactory factory = Validation.buildDefaultValidatorFactory();
    In this case, the default validation provider resolver will be used to locate available providers.

    The chosen provider is defined as followed:

    • if the XML configuration defines a provider, this provider is used
    • if the XML configuration does not define a provider or if no XML configuration is present the first provider returned by the ValidationProviderResolver instance is used.
  • The second bootstrap approach allows to choose a custom ValidationProviderResolver. The chosen ValidationProvider is then determined in the same way as in the default bootstrapping case (see above). 
     Configuration<?> configuration = Validation
    .byDefaultProvider()
    .providerResolver( new MyResolverStrategy() )
    .configure();
 ValidatorFactory factory = configuration.buildValidatorFactory();
  • The third approach allows you to specify explicitly and in a type safe fashion the expected provider.

    Optionally you can choose a custom ValidationProviderResolver. 

     ACMEConfiguration configuration = Validation
    .byProvider(ACMEProvider.class)
    .providerResolver( new MyResolverStrategy() )  // optionally set the provider resolver
    .configure();
 ValidatorFactory factory = configuration.buildValidatorFactory();

Note:

  • The ValidatorFactory object built by the bootstrap process should be cached and shared amongst Validator consumers.
  • This class is thread-safe.