org.springframework.validation.MessageCodeFormatter Maven / Gradle / Ivy
/*
* Copyright 2002-2020 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
*
* https://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.springframework.validation;
import org.springframework.lang.Nullable;
/**
* A strategy interface for formatting message codes.
*
* @author Chris Beams
* @since 3.2
* @see DefaultMessageCodesResolver
* @see DefaultMessageCodesResolver.Format
*/
@FunctionalInterface
public interface MessageCodeFormatter {
/**
* Build and return a message code consisting of the given fields,
* usually delimited by {@link DefaultMessageCodesResolver#CODE_SEPARATOR}.
* @param errorCode e.g.: "typeMismatch"
* @param objectName e.g.: "user"
* @param field e.g. "age"
* @return concatenated message code, e.g.: "typeMismatch.user.age"
* @see DefaultMessageCodesResolver.Format
*/
String format(String errorCode, @Nullable String objectName, @Nullable String field);
}