001/* 002 * Copyright 2002-2014 the original author or authors. 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * https://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 */ 016 017package org.springframework.beans; 018 019import org.springframework.core.convert.ConversionService; 020 021/** 022 * Interface that encapsulates configuration methods for a PropertyAccessor. 023 * Also extends the PropertyEditorRegistry interface, which defines methods 024 * for PropertyEditor management. 025 * 026 * <p>Serves as base interface for {@link BeanWrapper}. 027 * 028 * @author Juergen Hoeller 029 * @author Stephane Nicoll 030 * @since 2.0 031 * @see BeanWrapper 032 */ 033public interface ConfigurablePropertyAccessor extends PropertyAccessor, PropertyEditorRegistry, TypeConverter { 034 035 /** 036 * Specify a Spring 3.0 ConversionService to use for converting 037 * property values, as an alternative to JavaBeans PropertyEditors. 038 */ 039 void setConversionService(ConversionService conversionService); 040 041 /** 042 * Return the associated ConversionService, if any. 043 */ 044 ConversionService getConversionService(); 045 046 /** 047 * Set whether to extract the old property value when applying a 048 * property editor to a new value for a property. 049 */ 050 void setExtractOldValueForEditor(boolean extractOldValueForEditor); 051 052 /** 053 * Return whether to extract the old property value when applying a 054 * property editor to a new value for a property. 055 */ 056 boolean isExtractOldValueForEditor(); 057 058 /** 059 * Set whether this instance should attempt to "auto-grow" a 060 * nested path that contains a {@code null} value. 061 * <p>If {@code true}, a {@code null} path location will be populated 062 * with a default object value and traversed instead of resulting in a 063 * {@link NullValueInNestedPathException}. 064 * <p>Default is {@code false} on a plain PropertyAccessor instance. 065 */ 066 void setAutoGrowNestedPaths(boolean autoGrowNestedPaths); 067 068 /** 069 * Return whether "auto-growing" of nested paths has been activated. 070 */ 071 boolean isAutoGrowNestedPaths(); 072 073}