javolution.text

Annotation Type DefaultTextFormat

@Documented
@Inherited
@Target(value=TYPE)
@Retention(value=RUNTIME)
public @interface DefaultTextFormat

Specifies the default text format of a class (for parsing/formatting). The default format is typically used by the Object.toString() method and can be locally overridden in the scope of a TextContext.

 @DefaultTextFormat(Complex.Cartesian.class) 
 public class Complex {
     public String toString() { // Uses the default format unless locally overridden.
         return TextContext.toString(this);
     }
     public static Complex valueOf(CharSequence csq) {
         return TextContext.parse(csq, Complex.class);
     }
     public static class Cartesian extends TextFormat<Complex> { ... }
     public static class Polar extends TextFormat<Complex> { ... }
 }
 ...
 TextContext ctx = TextContext.enter(); // Enters a local textual context.
 try {
     ctx.setFormat(Complex.class, new Complex.Polar()); // Configure the local context.
     System.out.println(complexMatrix); // Displays complex numbers in polar coordinates.
 } finally {
     ctx.exit(); // Exits local context (reverts to previous Cartesian format).
 }

Version:

6.0, July 21, 2013

Author:

Jean-Marie Dautelle

Required Element Summary

Required Elements

Modifier and Type	Required Element and Description
Class<? extends TextFormat<?>>	value Returns the default text format of the annotated class.

Element Detail

value

public abstract Class<? extends TextFormat<?>> value

Returns the default text format of the annotated class.