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autoGrow support in DataBinder for field access

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This commit harmonizes the autoGrow feature for both regular bean
property and direct field access.

Issue: SPR-8692
This commit is contained in:
Stephane Nicoll
2014-06-27 11:28:09 +02:00
parent 17d15cc495
commit b0979cbab6
4 changed files with 49 additions and 13 deletions
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4
spring-context/src/main/java/org/springframework/validation/DataBinder.java
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@@ -1,5 +1,5 @@
/*
* Copyright 2002-2013 the original author or authors.
* Copyright 2002-2014 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.
@@ -246,7 +246,7 @@ public class DataBinder implements PropertyEditorRegistry, TypeConverter {
public void initDirectFieldAccess() {
Assert.state(this.bindingResult == null,
"DataBinder is already initialized - call initDirectFieldAccess before other configuration methods");
this.bindingResult = new DirectFieldBindingResult(getTarget(), getObjectName());
this.bindingResult = new DirectFieldBindingResult(getTarget(), getObjectName(), isAutoGrowNestedPaths());
if (this.conversionService != null) {
this.bindingResult.initConversion(this.conversionService);
}

14
spring-context/src/main/java/org/springframework/validation/DirectFieldBindingResult.java
View File

@@ -38,6 +38,8 @@ public class DirectFieldBindingResult extends AbstractPropertyBindingResult {
private final Object target;
private final boolean autoGrowNestedPaths;
private transient ConfigurablePropertyAccessor directFieldAccessor;
@@ -47,8 +49,19 @@ public class DirectFieldBindingResult extends AbstractPropertyBindingResult {
* @param objectName the name of the target object
*/
public DirectFieldBindingResult(Object target, String objectName) {
this(target, objectName, true);
}
/**
* Create a new DirectFieldBindingResult instance.
* @param target the target object to bind onto
* @param objectName the name of the target object
* @param autoGrowNestedPaths whether to "auto-grow" a nested path that contains a null value
*/
public DirectFieldBindingResult(Object target, String objectName, boolean autoGrowNestedPaths) {
super(objectName);
this.target = target;
this.autoGrowNestedPaths = autoGrowNestedPaths;
}
@@ -67,6 +80,7 @@ public class DirectFieldBindingResult extends AbstractPropertyBindingResult {
if (this.directFieldAccessor == null) {
this.directFieldAccessor = createDirectFieldAccessor();
this.directFieldAccessor.setExtractOldValueForEditor(true);
this.directFieldAccessor.setAutoGrowNestedPaths(this.autoGrowNestedPaths);
}
return this.directFieldAccessor;
}