001/* 002 * Copyright 2002-2017 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; 020import org.springframework.lang.Nullable; 021 022/** 023 * Interface that encapsulates configuration methods for a PropertyAccessor. 024 * Also extends the PropertyEditorRegistry interface, which defines methods 025 * for PropertyEditor management. 026 * 027 * <p>Serves as base interface for {@link BeanWrapper}. 028 * 029 * @author Juergen Hoeller 030 * @author Stephane Nicoll 031 * @since 2.0 032 * @see BeanWrapper 033 */ 034public interface ConfigurablePropertyAccessor extends PropertyAccessor, PropertyEditorRegistry, TypeConverter { 035 036 /** 037 * Specify a Spring 3.0 ConversionService to use for converting 038 * property values, as an alternative to JavaBeans PropertyEditors. 039 */ 040 void setConversionService(@Nullable ConversionService conversionService); 041 042 /** 043 * Return the associated ConversionService, if any. 044 */ 045 @Nullable 046 ConversionService getConversionService(); 047 048 /** 049 * Set whether to extract the old property value when applying a 050 * property editor to a new value for a property. 051 */ 052 void setExtractOldValueForEditor(boolean extractOldValueForEditor); 053 054 /** 055 * Return whether to extract the old property value when applying a 056 * property editor to a new value for a property. 057 */ 058 boolean isExtractOldValueForEditor(); 059 060 /** 061 * Set whether this instance should attempt to "auto-grow" a 062 * nested path that contains a {@code null} value. 063 * <p>If {@code true}, a {@code null} path location will be populated 064 * with a default object value and traversed instead of resulting in a 065 * {@link NullValueInNestedPathException}. 066 * <p>Default is {@code false} on a plain PropertyAccessor instance. 067 */ 068 void setAutoGrowNestedPaths(boolean autoGrowNestedPaths); 069 070 /** 071 * Return whether "auto-growing" of nested paths has been activated. 072 */ 073 boolean isAutoGrowNestedPaths(); 074 075}