org.springframework.boot.bind

Class RelaxedDataBinder

java.lang.Object

org.springframework.validation.DataBinder

org.springframework.boot.bind.RelaxedDataBinder

All Implemented Interfaces:

PropertyEditorRegistry, TypeConverter

public class RelaxedDataBinder
extends DataBinder

Binder implementation that allows caller to bind to maps and also allows property names to match a bit loosely (if underscores or dashes are removed and replaced with camel case for example).

Author:

Dave Syer, Phillip Webb

See Also:

RelaxedNames

Field Summary

Fields inherited from class org.springframework.validation.DataBinder

DEFAULT_AUTO_GROW_COLLECTION_LIMIT, DEFAULT_OBJECT_NAME, logger

Constructor Summary

Constructors

Constructor and Description
RelaxedDataBinder(Object target) Create a new RelaxedDataBinder instance.
RelaxedDataBinder(Object target, String namePrefix) Create a new RelaxedDataBinder instance.

Method Summary

Modifier and Type	Method and Description
protected void	doBind(MutablePropertyValues propertyValues)
void	initBeanPropertyAccess()
protected String	normalizePath(BeanWrapper wrapper, String path) Normalize a bean property path to a format understood by a BeanWrapper.
void	setIgnoreNestedProperties(boolean ignoreNestedProperties) Flag to disable binding of nested properties (i.e.
void	setNameAliases(Map<String,List<String>> aliases) Set name aliases.
RelaxedDataBinder	withAlias(String name, String... alias) Add aliases to the DataBinder.

Methods inherited from class org.springframework.validation.DataBinder

addCustomFormatter, addCustomFormatter, addCustomFormatter, addValidators, applyPropertyValues, bind, checkAllowedFields, checkRequiredFields, close, convertIfNecessary, convertIfNecessary, convertIfNecessary, findCustomEditor, getAllowedFields, getAutoGrowCollectionLimit, getBindingErrorProcessor, getBindingResult, getConversionService, getDisallowedFields, getInternalBindingResult, getObjectName, getPropertyAccessor, getPropertyEditorRegistry, getRequiredFields, getSimpleTypeConverter, getTarget, getTypeConverter, getValidator, getValidators, initDirectFieldAccess, isAllowed, isAutoGrowNestedPaths, isIgnoreInvalidFields, isIgnoreUnknownFields, registerCustomEditor, registerCustomEditor, replaceValidators, setAllowedFields, setAutoGrowCollectionLimit, setAutoGrowNestedPaths, setBindingErrorProcessor, setConversionService, setDisallowedFields, setExtractOldValueForEditor, setIgnoreInvalidFields, setIgnoreUnknownFields, setMessageCodesResolver, setRequiredFields, setValidator, validate, validate

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

RelaxedDataBinder

public RelaxedDataBinder(Object target)

Create a new RelaxedDataBinder instance.

Parameters:

target - the target into which properties are bound

RelaxedDataBinder

public RelaxedDataBinder(Object target,
                         String namePrefix)

Create a new RelaxedDataBinder instance.

Parameters:

target - the target into which properties are bound

namePrefix - An optional prefix to be used when reading properties

Method Detail

setIgnoreNestedProperties

public void setIgnoreNestedProperties(boolean ignoreNestedProperties)

Flag to disable binding of nested properties (i.e. those with period separators in their paths). Can be useful to disable this if the name prefix is empty and you don't want to ignore unknown fields.

Parameters:

ignoreNestedProperties - the flag to set (default false)

setNameAliases

public void setNameAliases(Map<String,List<String>> aliases)

Set name aliases.

Parameters:

aliases - a map of property name to aliases

withAlias

public RelaxedDataBinder withAlias(String name,
                                   String... alias)

Add aliases to the DataBinder.

Parameters:

name - the property name to alias

alias - aliases for the property names

Returns:

this instance

initBeanPropertyAccess

public void initBeanPropertyAccess()

Overrides:

initBeanPropertyAccess in class DataBinder

doBind

protected void doBind(MutablePropertyValues propertyValues)

Overrides:

doBind in class DataBinder

normalizePath

protected String normalizePath(BeanWrapper wrapper,
                               String path)

Normalize a bean property path to a format understood by a BeanWrapper. This is used so that

• Fuzzy matching can be employed for bean property names
• Period separators can be used instead of indexing ([...]) for map keys

Parameters:

wrapper - a bean wrapper for the object to bind

path - the bean path to bind

Returns:

a transformed path with correct bean wrapper syntax