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setAutoGrowNestedPaths throws an IllegalStateException if being called too late (SPR-6718)

This commit is contained in:
Juergen Hoeller 2010-02-09 15:54:48 +00:00
parent aafe8ef9be
commit b670b19429
1 changed files with 28 additions and 24 deletions
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52
org.springframework.context/src/main/java/org/springframework/validation/DataBinder.java
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@ -1,5 +1,5 @@
/*
* Copyright 2002-2009 the original author or authors.
* Copyright 2002-2010 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.
@ -176,14 +176,37 @@ public class DataBinder implements PropertyEditorRegistry, TypeConverter {
return this.objectName;
}
/**
* Set whether this binder should attempt to "auto-grow" a nested path that contains a null value.
* <p>If "true", a null path location will be populated with a default object value and traversed
* instead of resulting in an exception. This flag also enables auto-growth of collection elements
* when accessing an out-of-bounds index.
* <p>Default is "true" on a standard DataBinder. Note that this feature is only supported
* for bean property access (DataBinder's default mode), not for field access.
* @see #initBeanPropertyAccess()
* @see org.springframework.beans.BeanWrapper#setAutoGrowNestedPaths
*/
public void setAutoGrowNestedPaths(boolean autoGrowNestedPaths) {
Assert.state(this.bindingResult == null,
"DataBinder is already initialized - call setAutoGrowNestedPaths before other configuration methods");
this.autoGrowNestedPaths = autoGrowNestedPaths;
}
/**
* Return whether "auto-growing" of nested paths has been activated.
*/
public boolean isAutoGrowNestedPaths() {
return this.autoGrowNestedPaths;
}
/**
* Initialize standard JavaBean property access for this DataBinder.
* <p>This is the default; an explicit call just leads to eager initialization.
* @see #initDirectFieldAccess()
*/
public void initBeanPropertyAccess() {
Assert.isNull(this.bindingResult,
"DataBinder is already initialized - call initBeanPropertyAccess before any other configuration methods");
Assert.state(this.bindingResult == null,
"DataBinder is already initialized - call initBeanPropertyAccess before other configuration methods");
this.bindingResult = new BeanPropertyBindingResult(getTarget(), getObjectName(), isAutoGrowNestedPaths());
if (this.conversionService != null) {
this.bindingResult.initConversion(this.conversionService);
@ -196,8 +219,8 @@ public class DataBinder implements PropertyEditorRegistry, TypeConverter {
* @see #initBeanPropertyAccess()
*/
public void initDirectFieldAccess() {
Assert.isNull(this.bindingResult,
"DataBinder is already initialized - call initDirectFieldAccess before any other configuration methods");
Assert.state(this.bindingResult == null,
"DataBinder is already initialized - call initDirectFieldAccess before other configuration methods");
this.bindingResult = new DirectFieldBindingResult(getTarget(), getObjectName());
if (this.conversionService != null) {
this.bindingResult.initConversion(this.conversionService);
@ -332,25 +355,6 @@ public class DataBinder implements PropertyEditorRegistry, TypeConverter {
return this.ignoreInvalidFields;
}
/**
* Set whether this binder should attempt to "auto-grow" a nested path that contains a null value.
* <p>If "true", a null path location will be populated with a default object value and traversed
* instead of resulting in an exception. This flag also enables auto-growth of collection elements
* when accessing an out-of-bounds index.
* <p>Default is "true" on a standard DataBinder.
* @see org.springframework.beans.BeanWrapper#setAutoGrowNestedPaths
*/
public void setAutoGrowNestedPaths(boolean autoGrowNestedPaths) {
this.autoGrowNestedPaths = autoGrowNestedPaths;
}
/**
* Return whether "auto-growing" of nested paths has been activated.
*/
public boolean isAutoGrowNestedPaths() {
return this.autoGrowNestedPaths;
}
/**
* Register fields that should be allowed for binding. Default is all
* fields. Restrict this for example to avoid unwanted modifications