[jira] [Commented] (TOBAGO-1972) Sheet sorting: can't sort "Apples with Pears"

["Udo Schnurpfeil (JIRA)" <de...@myfaces.apache.org>]

    [ https://issues.apache.org/jira/browse/TOBAGO-1972?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16738461#comment-16738461 ] 

Udo Schnurpfeil commented on TOBAGO-1972:
-----------------------------------------

Problem exists until 4.0.0

> Sheet sorting: can't sort "Apples with Pears"
> ---------------------------------------------
>
>                 Key: TOBAGO-1972
>                 URL: https://issues.apache.org/jira/browse/TOBAGO-1972
>             Project: MyFaces Tobago
>          Issue Type: Bug
>          Components: Core
>    Affects Versions: 4.3.2
>            Reporter: Udo Schnurpfeil
>            Assignee: Udo Schnurpfeil
>            Priority: Minor
>
> It's not possible to sort (and compare) a list of objects using the same interfaces. Example:
> {code}
>   <tc:sheet value="#{fruitBasket.list}" var="fruit">
>     <tc:column label="Name" sortable="true">
>       <tc:out value="#{fruit.name}"/>
>     </tc:column>
>   </tc:sheet>
> {code}
> {code}
> import javax.enterprise.context.RequestScoped;
> import javax.inject.Named;
> import java.io.Serializable;
> import java.util.ArrayList;
> import java.util.List;
> @Named
> @RequestScoped
> public class FruitBasket implements Serializable {
>   private List<Fruit> list;
>   public FruitBasket() {
>     list = new ArrayList<>();
>     list.add(new Apple("Golden Delicious"));
>     list.add(new Apple("Schöner aus Boskoop"));
>     list.add(new Pear("Williams Christ"));
>     list.add(new Pear("Köstliche aus Charneux"));
>   }
>   public List<Fruit> getList() {
>     return list;
>   }
> }
> {code}
> {code}
> public interface Fruit  {
>   String getName();
>   void setName(String name);
> }
> {code}
> {code}
> public class Apple implements Fruit {
> private String name;
>   public Apple(String name) {
>     this.name = name;
>   }
>   @Override
>   public String getName() {
>     return name;
>   }
>   public void setName(String name) {
>     this.name = name;
>   }
> }
> {code}
> {code}
> public class Pear implements Fruit {
> private String name;
>   public Pear(String name) {
>     this.name = name;
>   }
>   @Override
>   public String getName() {
>     return name;
>   }
>   public void setName(String name) {
>     this.name = name;
>   }
> }
> {code}
> Excepiton:
> {code}
> 45,350 ERROR m.t.u.BeanComparator:95   java.lang.ClassCastException@61e93129
> java.lang.IllegalArgumentException: java.lang.ClassCastException@61e93129
> 	at sun.reflect.GeneratedMethodAccessor87.invoke(Unknown Source)
> 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> 	at java.lang.reflect.Method.invoke(Method.java:498)
> 	at org.apache.myfaces.tobago.util.BeanComparator.compare(BeanComparator.java:93)
> 	at java.util.TimSort.binarySort(TimSort.java:296)
> 	at java.util.TimSort.sort(TimSort.java:221)
> 	at java.util.Arrays.sort(Arrays.java:1512)
> 	at java.util.ArrayList.sort(ArrayList.java:1462)
> 	at java.util.Collections.sort(Collections.java:175)
> 	at org.apache.myfaces.tobago.component.Sorter.perform(Sorter.java:182)
> 	at org.apache.myfaces.tobago.component.Sorter.perform(Sorter.java:84)
> [...]
> {code}



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