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<p>Hi Emily,</p>
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<p>I disagree, at least it doesn't add any new ambiguous injections. The use-case is specifically to Specialized/Alternative beans. Right now inheritance of managed beans is itself problematic, as injecting the base class can cause these ambiguous resolutions.</p>
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<p>The example I sent out actually works correctly (in weld at least), really my propose is to remove the need to have Produces a second time and update the spec to clarify what happens here (FWIW, I don't believe the case is currently described in the spec),
hopefully to say that qualifiers and scopes from the base method remain in effect, unless explicitly overridden.</p>
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</p>
<p>John</p>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" color="#000000" style="font-size:11pt"><b>From:</b> Emily Jiang <EMIJIANG@uk.ibm.com><br>
<b>Sent:</b> Sunday, September 11, 2016 5:59 PM<br>
<b>To:</b> John Ament<br>
<b>Cc:</b> cdi-dev<br>
<b>Subject:</b> Re: [cdi-dev] Should javax.enterprise.inject.Produces be inherited?</font>
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<div><font size="2" face="sans-serif">I think this is very problematic as you will get AmbiguousResolutionException all the time once we introduce this inheritance.</font>
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<font size="2" face="sans-serif">Many thanks,<br>
Emily<br>
===========================<br>
Emily Jiang<br>
WebSphere Application Server, CDI Development Lead</font> <br>
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MP 211, DE3A20, Winchester, Hampshire, England, SO21 2JN<br>
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Lotus Notes: Emily Jiang/UK/IBM@IBMGB<br>
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<font size="1" color="#5f5f5f" face="sans-serif">From: </font><font size="1" face="sans-serif">John Ament <john.ament@spartasystems.com></font>
<br>
<font size="1" color="#5f5f5f" face="sans-serif">To: </font><font size="1" face="sans-serif">cdi-dev <cdi-dev@lists.jboss.org></font>
<br>
<font size="1" color="#5f5f5f" face="sans-serif">Date: </font><font size="1" face="sans-serif">11/09/2016 20:04</font>
<br>
<font size="1" color="#5f5f5f" face="sans-serif">Subject: </font><font size="1" face="sans-serif">[cdi-dev] Should javax.enterprise.inject.Produces be inherited?</font>
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<font size="1" color="#5f5f5f" face="sans-serif">Sent by: </font><font size="1" face="sans-serif">cdi-dev-bounces@lists.jboss.org</font>
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<font size="3" face="Calibri">All,</font> <br>
<br>
<font size="3" face="Calibri">I was just thinking about alternatives and producer methods. Suppose I have the following bean:</font>
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<p><font size="3" face="Calibri">@ApplicationScoped</font> <br>
<font size="3" face="Calibri">public class Boop {</font> <br>
<br>
<font size="3" face="Calibri"> @Produces</font> <br>
<font size="3" face="Calibri"> @ApplicationScoped</font> <br>
<font size="3" face="Calibri"> public Simpler makeSimpler() {</font> <br>
<font size="3" face="Calibri"> return new Simpler("Boop");</font> <br>
<font size="3" face="Calibri"> }</font> <br>
<font size="3" face="Calibri">}</font> <br>
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<font size="3" face="Calibri">If I want to override the producer method, I need to declare fully:</font>
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</p>
<p><font size="3" face="Calibri">@Alternative</font> <br>
<font size="3" face="Calibri">@Priority(100)</font> <br>
<font size="3" face="Calibri">@ApplicationScoped</font> <br>
<font size="3" face="Calibri">public class BoopAlternative extends Boop{</font> <br>
<font size="3" face="Calibri"> @Override</font> <br>
<font size="3" face="Calibri"> @Produces</font> <br>
<font size="3" face="Calibri"> public Simpler makeSimpler() {</font> <br>
<font size="3" face="Calibri"> return new Simpler("Boop2");</font> <br>
<font size="3" face="Calibri"> }</font> <br>
<font size="3" face="Calibri">}</font> <br>
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<font size="3" face="Calibri">For some reason, scopes are inherited, but the produces annotation is not. At least in the case of a producer method, it seems like it would be useful for @Produces to be inherited as well.</font>
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<font size="3" face="Calibri">John</font> <br>
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