[Simple-support] cannot use @Convert with @Attributes!?...

[-=}\\*/{=- <rui...@gm...>]

Exception in thread "main" org.simpleframework.xml.core.AttributeException:
Cannot use @org.simpleframework.xml.Attribute(name=, empty=, required=true)
to represent field 'match' java.util.regex.Pattern abc.kis.Url.match
 at
org.simpleframework.xml.core.AttributeLabel.getConverter(AttributeLabel.java:110)
at org.simpleframework.xml.core.CacheLabel.getConverter(CacheLabel.java:312)
 at org.simpleframework.xml.core.Composite.readVariable(Composite.java:666)
at org.simpleframework.xml.core.Composite.readInstance(Composite.java:635)


  class Url {
    @Attribute
    Pattern match;

    @Attribute
    String target;
  }

<url match=".*/" target="index.html"/>

i'm using a RegistryStrategy with a PatternConverter that works fine with
@Element...

          <url target="index.html">
             <match>.*/</match>
           </url>

... but that match belongs to an attribute not an element...
i though of converting the Url class instead... or make a pattern wrapper,
but rather get the pattern working as an @Attribute, since i'll need it
several times and seams more correct.



the converter below:

public class PatternConverter extends SimpleConverter<Pattern> {

  public static Registry bind(Registry r) {
    return bind(r, Pattern.class, PatternConverter.class);
  }

  @Override
  public Pattern read(InputNode in) throws Exception {
    return Pattern.compile(in.getValue());
  }

  @Override
  public void write(OutputNode on, Pattern p) {
    on.setValue(p.toString());
  }

}