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* JBoss, Home of Professional Open Source
* Copyright 2009, Red Hat, Inc. and/or its affiliates, and individual contributors
* by the @authors tag. See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
* http://www.apache.org/licenses/LICENSE-2.0
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
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*/
package javax.validation.spi;

import javax.validation.Configuration;
import javax.validation.ValidationException;
import javax.validation.ValidationProviderResolver;
import javax.validation.ValidatorFactory;

/**
 * Contract between the validation bootstrap mechanism and the provider engine.
 * 

* Implementations must have a public no-arg constructor. The construction of a provider * should be as "lightweight" as possible. * * {@code T} represents the provider specific Configuration subclass * which typically host provider's additional configuration methods. * * @author Emmanuel Bernard * @author Hardy Ferentschik */ public interface ValidationProvider> { /** * Returns a {@link Configuration} instance implementing {@code T}, * the {@code Configuration} sub-interface. * The returned {@code Configuration} instance must use the current provider * ({@code this}) to build the {@code ValidatorFactory} instance. * * @param state bootstrap state * @return specific {@code Configuration} implementation */ T createSpecializedConfiguration(BootstrapState state); /** * Returns a {@link Configuration} instance. This instance is not bound to * use the current provider. The choice of provider follows the algorithm described * in {@code Configuration} *

* The {@link ValidationProviderResolver} used by {@code Configuration} * is provided by {@code state}. * If null, the default {@code ValidationProviderResolver} is used. * * @param state bootstrap state * @return non specialized Configuration implementation */ Configuration createGenericConfiguration(BootstrapState state); /** * Build a {@link ValidatorFactory} using the current provider implementation. *

* The {@code ValidatorFactory} is assembled and follows the configuration passed * via {@link ConfigurationState}. *

* The returned {@code ValidatorFactory} is properly initialized and ready for use. * * @param configurationState the configuration descriptor * @return the instantiated {@code ValidatorFactory} * @throws ValidationException if the {@code ValidatorFactory} cannot be built */ ValidatorFactory buildValidatorFactory(ConfigurationState configurationState); }





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