Package org.joda.convert

Class MethodFromStringConverter<T>

java.lang.Object

org.joda.convert.MethodFromStringConverter<T>

Type Parameters:

T - the type of the converter

All Implemented Interfaces:

FromStringConverter<T>, TypedFromStringConverter<T>

final class MethodFromStringConverter<T>
extends Object
implements TypedFromStringConverter<T>

Conversion from a string using a static method.

The fromString method must meet the following signature:
static T anyName(String) on any class.

MethodFromStringConverter is thread-safe and immutable.

Field Summary

Fields

Modifier and Type	Field	Description
private final Class<?>	effectiveType	Effective type.
private final Method	fromString	Conversion from a string.

Constructor Summary

Constructors

Constructor	Description
MethodFromStringConverter(Class<T> cls, Method fromString, Class<?> effectiveType)	Creates an instance using two methods.

Method Summary

Modifier and Type	Method	Description
T	convertFromString(Class<? extends T> cls, String str)	Converts the specified object from a String.
Class<?>	getEffectiveType()	Gets the effective type that the converter works on.

Methods inherited from class java.lang.Object

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

Field Details

fromString

private final Method fromString

Conversion from a string.

effectiveType

private final Class<?> effectiveType

Effective type.

Constructor Details

MethodFromStringConverter

MethodFromStringConverter(Class<T> cls,
 Method fromString,
 Class<?> effectiveType)

Creates an instance using two methods.

Parameters:

cls - the class this converts for, not null

fromString - the fromString method, not null

Throws:

RuntimeException - (or subclass) if the method signatures are invalid

Method Details

convertFromString

public T convertFromString(Class<? extends T> cls,
 String str)

Description copied from interface: FromStringConverter

Converts the specified object from a String.

Specified by:

convertFromString in interface FromStringConverter<T>

Parameters:

cls - the class to convert to, not null

str - the string to convert, not null

Returns:

the converted object, may be null but generally not

getEffectiveType

public Class<?> getEffectiveType()

Description copied from interface: TypedFromStringConverter

Gets the effective type that the converter works on.

For example, if a class declares the FromString and ToString then the effective type of the converter is that class. If a subclass is queried for a converter, then the effective type is that of the superclass.

Specified by:

getEffectiveType in interface TypedFromStringConverter<T>

Returns:

the effective type