Converter (Apache Commons CLI 1.11.0 API)

Type Parameters:

T - The return type for the function.

E - The kind of thrown exception or error.

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.
```
@FunctionalInterface
public interface Converter<T,E extends Exception>
```
The definition of the functional interface to call when doing a conversion. Like Function<String,T> but can throw an Exception.

Since:

1.7.0

Field Summary

Fields
Modifier and Type	Field	Description
`static Converter<Class<?>,ClassNotFoundException>`	`CLASS`	Class name converter.
`static Converter<Date,ParseException>`	`DATE`	Converts to a date using the format string Form "EEE MMM dd HH:mm:ss zzz yyyy".
`static Converter<?,RuntimeException>`	`DEFAULT`	The default converter.
`static Converter<File,NullPointerException>`	`FILE`	File name converter.
`static Converter<Number,NumberFormatException>`	`NUMBER`	Number converter.
`static Converter<Object,ReflectiveOperationException>`	`OBJECT`	Converts a class name to an instance of the class.
`static Converter<Path,InvalidPathException>`	`PATH`	Path converter.
`static Converter<URL,MalformedURLException>`	`URL`	Creates a URL.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type Method Description

T apply(String string)
Applies the conversion function to the String argument.

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`T`	`apply(String string)`	Applies the conversion function to the String argument.

- Field Detail
  - DEFAULT
```
static final Converter<?,RuntimeException> DEFAULT
```
    The default converter. Does nothing.
  - CLASS
```
static final Converter<Class<?>,ClassNotFoundException> CLASS
```
    Class name converter. Calls Class.forName(String).
  - FILE
```
static final Converter<File,NullPointerException> FILE
```
    File name converter. Calls File.File(String).
  - PATH
```
static final Converter<Path,InvalidPathException> PATH
```
    Path converter. Calls Paths.get(java.net.URI).
  - NUMBER
```
static final Converter<Number,NumberFormatException> NUMBER
```
    Number converter. Converts to a Double if a decimal point ('.') is in the string or a Long otherwise.
  - OBJECT
```
static final Converter<Object,ReflectiveOperationException> OBJECT
```
    Converts a class name to an instance of the class. Uses the Class converter to find the class and then call the default constructor.
    
    See Also:
    
    CLASS
  - URL
```
static final Converter<URL,MalformedURLException> URL
```
    Creates a URL. Calls URL.URL(String).
  - DATE
```
static final Converter<Date,ParseException> DATE
```
    Converts to a date using the format string Form "EEE MMM dd HH:mm:ss zzz yyyy".
- Method Detail
  - apply
```
T apply(String string)
 throws E
```
    Applies the conversion function to the String argument.
    
    Parameters:
    
    string - the String to convert.
    
    Returns:
    
    the Object from the conversion.
    
    Throws:
    
    E - on error.
    
    E extends Exception

Interface Converter<T,E extends Exception>

Field Summary

Method Summary

Field Detail

DEFAULT

CLASS

FILE

PATH

NUMBER

OBJECT

URL

DATE

Method Detail

apply