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/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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
 * limitations under the License.
 */
package org.apache.dubbo.validation;

import org.apache.dubbo.common.URL;
import org.apache.dubbo.common.extension.Adaptive;
import org.apache.dubbo.common.extension.SPI;

import static org.apache.dubbo.common.constants.FilterConstants.VALIDATION_KEY;

/**
 * Instance of Validation interface provide instance of {@link Validator} based on the value of validation attribute.
 */
@SPI("jvalidation")
public interface Validation {

    /**
     * Return the instance of {@link Validator} for a given url.
     * @param url Invocation url
     * @return Instance of {@link Validator}
     */
    @Adaptive(VALIDATION_KEY)
    Validator getValidator(URL url);

}