org.springframework.beans.support

Class ArgumentConvertingMethodInvoker

java.lang.Object

org.springframework.util.MethodInvoker

org.springframework.beans.support.ArgumentConvertingMethodInvoker

Direct Known Subclasses:

MethodInvokingFactoryBean

public class ArgumentConvertingMethodInvoker
extends org.springframework.util.MethodInvoker

Subclass of MethodInvoker that tries to convert the given arguments for the actual target method via a TypeConverter.

Supports flexible argument conversions, in particular for invoking a specific overloaded method.

Since:

1.1

Author:

Juergen Hoeller

See Also:

BeanWrapperImpl.convertIfNecessary(java.lang.String, java.lang.Object, java.lang.Object, java.lang.Class<?>, org.springframework.core.convert.TypeDescriptor)

Constructor Summary

Constructors

Constructor and Description
ArgumentConvertingMethodInvoker()

Method Summary

Methods

Modifier and Type	Method and Description
protected Method	doFindMatchingMethod(Object[] arguments) Actually find a method with matching parameter type, i.e.
protected Method	findMatchingMethod() This implementation looks for a method with matching parameter types.
protected TypeConverter	getDefaultTypeConverter() Obtain the default TypeConverter for this method invoker.
TypeConverter	getTypeConverter() Return the TypeConverter used for argument type conversion.
void	registerCustomEditor(Class requiredType, PropertyEditor propertyEditor) Register the given custom property editor for all properties of the given type.
void	setTypeConverter(TypeConverter typeConverter) Set a TypeConverter to use for argument type conversion.

Methods inherited from class org.springframework.util.MethodInvoker

getArguments, getPreparedMethod, getTargetClass, getTargetMethod, getTargetObject, getTypeDifferenceWeight, invoke, isPrepared, prepare, resolveClassName, setArguments, setStaticMethod, setTargetClass, setTargetMethod, setTargetObject

Methods inherited from class java.lang.Object

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

Constructor Detail

ArgumentConvertingMethodInvoker

public ArgumentConvertingMethodInvoker()

Method Detail

setTypeConverter

public void setTypeConverter(TypeConverter typeConverter)

Set a TypeConverter to use for argument type conversion.

Default is a SimpleTypeConverter. Can be overridden with any TypeConverter implementation, typically a pre-configured SimpleTypeConverter or a BeanWrapperImpl instance.

See Also:

SimpleTypeConverter, BeanWrapperImpl

getTypeConverter

public TypeConverter getTypeConverter()

Return the TypeConverter used for argument type conversion.

Can be cast to PropertyEditorRegistry if direct access to the underlying PropertyEditors is desired (provided that the present TypeConverter actually implements the PropertyEditorRegistry interface).

getDefaultTypeConverter

protected TypeConverter getDefaultTypeConverter()

Obtain the default TypeConverter for this method invoker.

Called if no explicit TypeConverter has been specified. The default implementation builds a SimpleTypeConverter. Can be overridden in subclasses.

registerCustomEditor

public void registerCustomEditor(Class requiredType,
                        PropertyEditor propertyEditor)

Register the given custom property editor for all properties of the given type.

Typically used in conjunction with the default SimpleTypeConverter; will work with any TypeConverter that implements the PropertyEditorRegistry interface as well.

Parameters:

requiredType - type of the property

propertyEditor - editor to register

See Also:

setTypeConverter(org.springframework.beans.TypeConverter), PropertyEditorRegistry.registerCustomEditor(java.lang.Class<?>, java.beans.PropertyEditor)

findMatchingMethod

protected Method findMatchingMethod()

This implementation looks for a method with matching parameter types.

Overrides:

findMatchingMethod in class org.springframework.util.MethodInvoker

See Also:

doFindMatchingMethod(java.lang.Object[])

doFindMatchingMethod

protected Method doFindMatchingMethod(Object[] arguments)

Actually find a method with matching parameter type, i.e. where each argument value is assignable to the corresponding parameter type.

Parameters:

arguments - the argument values to match against method parameters

Returns:

a matching method, or null if none