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/*
 * 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 java.io.Serializable;
import java.util.Map;

import org.springframework.lang.NonNull;
import org.springframework.lang.Nullable;
import org.springframework.util.Assert;

/**
 * Map-based implementation of the BindingResult interface,
 * supporting registration and evaluation of binding errors on
 * Map attributes.
 *
 * 

Can be used as errors holder for custom binding onto a * Map, for example when invoking a Validator for a Map object. * * @author Juergen Hoeller * @since 2.0 * @see java.util.Map */ @SuppressWarnings("serial") public class MapBindingResult extends AbstractBindingResult implements Serializable { private final Map target; /** * Create a new MapBindingResult instance. * @param target the target Map to bind onto * @param objectName the name of the target object */ public MapBindingResult(Map target, String objectName) { super(objectName); Assert.notNull(target, "Target Map must not be null"); this.target = target; } /** * Return the target Map to bind onto. */ public final Map getTargetMap() { return this.target; } @Override @NonNull public final Object getTarget() { return this.target; } @Override @Nullable protected Object getActualFieldValue(String field) { return this.target.get(field); } }





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