dot betwixt file reference

[Joan Jesús Pujol - SUNSET technologies]

Hello,

There is some reference documentation for the dot betwixt binding files?
Because I'm not able to found it.

A lot of thanks in advance,
---
Joan Jesús Pujol Espinar

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RE: [lang] ClassCastException in Enum.compareTo with anonymous inner classes

[Samuel Fleischle]

Hi Jörg,

thanks for your quick response and your approach to solve this issue. But 
anyway I think it should be possible to add these Enums to a Set without 
throwing a ClassCastException regardless of which class, anonymous inner class 
or whatever else the Enum is.

Samuel

-Original Message-
From: Jörg Schaible [mailto:[EMAIL PROTECTED]
Sent: Thursday, September 13, 2007 4:06 PM
To: Jakarta Commons Users List
Subject: RE: [lang] ClassCastException in Enum.compareTo with anonymous inner 
classes

Hi Samuel,

Samuel Fleischle wrote on Thursday, September 13, 2007 3:51 PM:

 Hi,
 I updated from Commons Lang 2.1 to Commons Lang 2.3 and got
 some issues with the changed compareTo() method of Enum with
 anonymouse inner classes:

 Here is my simplified Enum:


 public class ItemStatus extends Enum
 {
// --
 Static Fields
   public static final ItemStatus CANCEL = new
 ItemStatus(CANCEL, Cancel);

public static final ItemStatus SHIPPED = new
 ItemStatus(SHIPPED, Shipped) {
   public String getDisplayName() {
   // do something special for this status
   }
};

   public static final ItemStatus MOVED = new
 ItemStatus(MOVED, Moved) {
   public String getDisplayName() {
   // do something special for this status
   }
};


[snip]

 }

[snip]

 com.myapp.common.model.order.ItemStatus
 com.myapp.common.model.order.ItemStatus$1
 com.myapp.common.model.order.ItemStatus$2

 The compareTo-Method now tries to compare ItemStatus$1 with
 ItemStatus$2 and says to me, that my ItemStatus-Enums are
 different classes.

Well, obviously those *are* different classes.

 I saw in JIRA there are some other issues in
 ValuedEnum.compareTo(). Is there a bug in the
 Enum.compareTo() implementation which got changed in Lang 2.2?

IIRC, this was more about using different class loaders loading the EnumValue 
class.

 Thanks in advance for any help or comment on this issue.

Why don't you factor out a (private) interface with this method? Write an 
addition ctor that takes such an implementation and use otherwise a default 
one. With this approach the enum class is always the same and the anonymous 
class is of a different type. Make the an additional field in the enum class 
keeping that implementation and declare it as transient for seamless 
serialization.

- Jörg

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RE: [lang] ClassCastException in Enum.compareTo with anonymous inner classes

[Jörg Schaible]

Samuel Fleischle wrote on Friday, September 14, 2007 9:19 AM:

 Hi Jörg,
 
 thanks for your quick response and your approach to solve
 this issue. But anyway I think it should be possible to add
 these Enums to a Set without throwing a ClassCastException
 regardless of which class, anonymous inner class or whatever else the
 Enum is. 

Well, this is what is excplicitly documented in the JDK's docs for 
Comparable.compareTo(). The ValueEnum must ensure that it does not compare 
apples and oranges and two different classes imply this.

The exception was surprising for you, since the old version of CL simply did 
this, but I'd rather declare that impl of compareTo as buggy ;-)

- Jörg

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