org.jdesktop.swingx.renderer

Interface StringValue

All Superinterfaces:

Serializable

All Known Implementing Classes:

AbstractRenderer, DefaultListRenderer, DefaultTableRenderer, DefaultTreeRenderer, FormatStringValue, LocalizableStringValue, MappedValue, MappedValues.MappedValueUIResource, StringValues.StringValueUIResource

public interface StringValue
extends Serializable

A simple converter to return a String representation of an object. This class is intended to be the "small coin" to configure/format textual cell content of concrete subclasses of ComponentProvider.

F.i. to show a Contributor cell object as "Busywoman, Herta" implement a custom StringValue and use it in a text rendering provider.

 StringValue stringValue = new StringValue() {
 
     public String getString(Object value) {
         if (!(value instanceof Contributor))
             return TO_STRING.getString(value);
         Contributor contributor = (Contributor) value;
         return contributor.lastName + ", " + contributor.firstName;
     }
 
 };
 
 ComponentProvider provider = new LabelProvider(stringValue);
 table.setDefaultRenderer(Contributor.class, 
   new DefaultTableRenderer(provider));
 

PENDING: use a full-fledged Format instead? Would impose a higher burden onto implementors but could be re-used in editors.

Author:

Jeanette Winzenburg

See Also:

ComponentProvider, LabelProvider, DefaultTableRenderer, DefaultListRenderer, DefaultTreeRenderer

Method Summary

Modifier and Type	Method and Description
String	getString(Object value) Returns a string representation of the given value.

Method Detail

getString

String getString(Object value)

Returns a string representation of the given value.

PENDING JW: forgot - why not null return guaranteed?

Parameters:

value - the object to present as a string

Returns:

a string representation of the given value, guaranteed to be not null