/**

  * - Digitalis Internal Framework v2.0 -

  *

  * (C) 2007, Digitalis Informatica. 

  * 

  * Distribuicao e Gestao de Informatica, Lda.

  * Estrada de Paco de Arcos num.9 - Piso -1

  * 2780-666 Paco de Arcos

  * Telefone: (351) 21 4408990

  * Fax: (351) 21 4408999

  * http://www.digitalis.pt 

  */

 package pt.digitalis.dif.dem.annotations.stage;

 import java.lang.annotation.ElementType;

 import java.lang.annotation.Retention;

 import java.lang.annotation.RetentionPolicy;

 import java.lang.annotation.Target;

 import pt.digitalis.dif.dem.annotations.AnnotationTags;

 import pt.digitalis.dif.dem.annotations.metaannotations.BindToPrimary;

 import pt.digitalis.dif.dem.annotations.metaannotations.ExclusiveWith;

 import pt.digitalis.dif.dem.annotations.metaannotations.Primary;

 /**

  * This annotation defines a view for execution if an exception is thrown.

  * 

  * It is a non-pure primary annotation. Yields primariness to

  * <code>@StageDefinition</code> when used with this annotation.

  * 

  * @author Rodrigo Gonçalves <a

  *         href="mailto:rgoncalves@digitalis.pt">rgoncalves@digitalis.pt</a>

  * @created 2007/05/11

  */

 @Target( { ElementType.TYPE, ElementType.FIELD })

 @Retention(RetentionPolicy.RUNTIME)

 @Primary(yieldTo="pt.digitalis.dif.dem.annotations.entities.StageDefinition")

 @BindToPrimary("pt.digitalis.dif.dem.annotations.entities.StageDefinition")

 @ExclusiveWith("pt.digitalis.dif.dem.annotations.stage.ErrorStage")

 public @interface ErrorView {

     /** Defines the view type. Mandatory field! */

     String engine() default AnnotationTags.NONE;

     /** The error stage id. Mandatory field! */

     String target();

     /**

      * The type of the exception whose raising will trigger the error view. By

      * default, any Exception will trigger the error view.

      */

     String exceptions() default "java.lang.Exception";

 }