org.springframework.beans

类 TypeConverterSupport

java.lang.Object

org.springframework.beans.PropertyEditorRegistrySupport

org.springframework.beans.TypeConverterSupport

所有已实现的接口:

PropertyEditorRegistry, TypeConverter

直接已知子类:

AbstractPropertyAccessor, SimpleTypeConverter

public abstract class TypeConverterSupport
extends PropertyEditorRegistrySupport
implements TypeConverter

Base implementation of the TypeConverter interface, using a package-private delegate. Mainly serves as base class for BeanWrapperImpl.

从以下版本开始:

3.2

作者:

Juergen Hoeller

另请参阅:

SimpleTypeConverter

构造器概要

构造器

构造器和说明
TypeConverterSupport()

方法概要

限定符和类型	方法和说明
<T> T	convertIfNecessary(Object value, Class<T> requiredType) Convert the value to the required type (if necessary from a String).
<T> T	convertIfNecessary(Object value, Class<T> requiredType, Field field) Convert the value to the required type (if necessary from a String).
<T> T	convertIfNecessary(Object value, Class<T> requiredType, org.springframework.core.MethodParameter methodParam) Convert the value to the required type (if necessary from a String).

从类继承的方法 org.springframework.beans.PropertyEditorRegistrySupport

copyCustomEditorsTo, copyDefaultEditorsTo, findCustomEditor, getConversionService, getDefaultEditor, getPropertyType, guessPropertyTypeFromEditors, hasCustomEditorForElement, overrideDefaultEditor, registerCustomEditor, registerCustomEditor, registerDefaultEditors, setConversionService, useConfigValueEditors

从类继承的方法 java.lang.Object

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

构造器详细资料

TypeConverterSupport

public TypeConverterSupport()

方法详细资料

convertIfNecessary

@Nullable
public <T> T convertIfNecessary(@Nullable
                                           Object value,
                                           @Nullable
                                           Class<T> requiredType)
                                    throws TypeMismatchException

从接口复制的说明: TypeConverter

Convert the value to the required type (if necessary from a String).

Conversions from String to any type will typically use the setAsText method of the PropertyEditor class, or a Spring Converter in a ConversionService.

指定者:

convertIfNecessary 在接口中 TypeConverter

参数:

value - the value to convert

requiredType - the type we must convert to (or null if not known, for example in case of a collection element)

返回:

the new value, possibly the result of type conversion

抛出:

TypeMismatchException - if type conversion failed

另请参阅:

PropertyEditor.setAsText(String), PropertyEditor.getValue(), ConversionService, org.springframework.core.convert.converter.Converter

convertIfNecessary

@Nullable
public <T> T convertIfNecessary(@Nullable
                                           Object value,
                                           @Nullable
                                           Class<T> requiredType,
                                           @Nullable
                                           org.springframework.core.MethodParameter methodParam)
                                    throws TypeMismatchException

从接口复制的说明: TypeConverter

Convert the value to the required type (if necessary from a String).

Conversions from String to any type will typically use the setAsText method of the PropertyEditor class, or a Spring Converter in a ConversionService.

指定者:

convertIfNecessary 在接口中 TypeConverter

参数:

value - the value to convert

requiredType - the type we must convert to (or null if not known, for example in case of a collection element)

methodParam - the method parameter that is the target of the conversion (for analysis of generic types; may be null)

返回:

the new value, possibly the result of type conversion

抛出:

TypeMismatchException - if type conversion failed

另请参阅:

PropertyEditor.setAsText(String), PropertyEditor.getValue(), ConversionService, org.springframework.core.convert.converter.Converter

convertIfNecessary

@Nullable
public <T> T convertIfNecessary(@Nullable
                                           Object value,
                                           @Nullable
                                           Class<T> requiredType,
                                           @Nullable
                                           Field field)
                                    throws TypeMismatchException

从接口复制的说明: TypeConverter

Convert the value to the required type (if necessary from a String).

Conversions from String to any type will typically use the setAsText method of the PropertyEditor class, or a Spring Converter in a ConversionService.

指定者:

convertIfNecessary 在接口中 TypeConverter

参数:

value - the value to convert

requiredType - the type we must convert to (or null if not known, for example in case of a collection element)

field - the reflective field that is the target of the conversion (for analysis of generic types; may be null)

返回:

the new value, possibly the result of type conversion

抛出:

TypeMismatchException - if type conversion failed

另请参阅:

PropertyEditor.setAsText(String), PropertyEditor.getValue(), ConversionService, org.springframework.core.convert.converter.Converter