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/**
 * Copyright (C) the original author or authors.
 *
 * 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
 * limitations under the License.
 */

package ninja.validation;

import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;

/**
 * Validates that the parameter matches the given regular expression
 */
@WithValidator(Validators.MatchesValidator.class)
@Retention(RetentionPolicy.RUNTIME)
@Target(ElementType.PARAMETER)
public @interface Matches {

    /**
     * The regular expression to match
     */
    String regexp();

    /**
     * The key for the violation message
     * 
     * @return The key of the violation message
     */
    String key() default "validation.matches.violation";

    /**
     * Default message if the key isn't found
     * 
     * @return The default message
     */
    String message() default "{0} is doesn't match the format {1}";

    /**
     * The key for formatting the field
     * 
     * @return The key
     */
    String fieldKey() default "";
}