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/*
 * Copyright 2002-2006 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 org.springframework.validation;

import java.util.Map;

import org.springframework.beans.PropertyEditorRegistry;

/**
 * General interface that represents binding results. Extends the
 * {@link Errors interface} for error registration capabilities,
 * allowing for a {@link Validator} to be applied, and adds
 * binding-specific analysis and model building.
 *
 * 

Serves as result holder for a {@link DataBinder}, obtained via * the {@link DataBinder#getBindingResult()} method. BindingResult * implementations can also be used directly, for example to invoke * a {@link Validator} on it (e.g. as part of a unit test). * * @author Juergen Hoeller * @since 2.0 * @see DataBinder * @see Errors * @see Validator * @see BeanPropertyBindingResult * @see DirectFieldBindingResult * @see MapBindingResult */ public interface BindingResult extends Errors { /** * Prefix for the name of the BindingResult instance in a model, * followed by the object name. */ String MODEL_KEY_PREFIX = BindingResult.class.getName() + "."; /** * Return the wrapped target object, which may be a bean, an object with * public fields, a Map - depending on the concrete binding strategy. */ Object getTarget(); /** * Return a model Map for the obtained state, exposing a BindingResult * instance as '{@link #MODEL_KEY_PREFIX MODEL_KEY_PREFIX} + objectName' * and the object itself as 'objectName'. *

Note that the Map is constructed every time you're calling this method. * Adding things to the map and then re-calling this method will not work. *

The attributes in the model Map returned by this method are usually * included in the {@link org.springframework.web.servlet.ModelAndView} * for a form view that uses Spring's bind tag in a JSP, * which needs access to the BindingResult instance. Spring's pre-built * form controllers will do this for you when rendering a form view. * When building the ModelAndView instance yourself, you need to include * the attributes from the model Map returned by this method. * @see #getObjectName() * @see #MODEL_KEY_PREFIX * @see org.springframework.web.servlet.ModelAndView * @see org.springframework.web.servlet.tags.BindTag * @see org.springframework.web.servlet.mvc.SimpleFormController */ Map getModel(); /** * Return the underlying PropertyEditorRegistry. * @throws UnsupportedOperationException if the BindingResult * does not support a PropertyEditorRegistry */ PropertyEditorRegistry getPropertyEditorRegistry(); /** * Mark the specified disallowed field as suppressed. *

The data binder invokes this for each field value that was * detected to target a disallowed field. * @see DataBinder#setAllowedFields */ void recordSuppressedField(String fieldName); /** * Return the list of fields that were suppressed during the bind process. *

Can be used to determine whether any field values were targeting * disallowed fields. * @see DataBinder#setAllowedFields */ String[] getSuppressedFields(); /** * Add a custom {@link ObjectError} or {@link FieldError} to the errors list. *

Intended to be used by cooperating strategies such as {@link BindingErrorProcessor}. * @see ObjectError * @see FieldError * @see BindingErrorProcessor */ void addError(ObjectError error); /** * Resolve the given error code into message codes for the given field. *

Calls the configured {@link MessageCodesResolver} with appropriate parameters. * @param errorCode the error code to resolve into message codes * @param field the field to resolve message codes for * @return the resolved message codes */ String[] resolveMessageCodes(String errorCode, String field); }





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