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<td class="page-title-pattern-first-line " style="padding: 0; border-collapse: collapse; font-family: Arial, sans-serif; font-size: 14px; padding-top: 10px"> <a href="https://hibernate.atlassian.net/browse/HV" style="color: #3b73af; text-decoration: none">Hibernate Validator</a> / <a href="https://hibernate.atlassian.net/browse/HV-1370" style="color: #3b73af; text-decoration: none"><img src="cid:jira-generated-image-avatar-783cceb2-35fe-40f6-86df-0139c8aa2e5b" height="16" width="16" border="0" align="absmiddle" alt="Improvement" style="vertical-align: text-bottom"></a> <a href="https://hibernate.atlassian.net/browse/HV-1370" style="color: #3b73af; text-decoration: none">HV-1370</a> </td>
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<td style="vertical-align: top;; padding: 0; border-collapse: collapse; padding-right: 5px; font-size: 20px; line-height: 30px; mso-line-height-rule: exactly" class="page-title-pattern-header-container"> <span class="page-title-pattern-header" style="font-family: Arial, sans-serif; padding: 0; font-size: 20px; line-height: 30px; mso-text-raise: 2px; mso-line-height-rule: exactly; vertical-align: middle"> <a href="https://hibernate.atlassian.net/browse/HV-1370" style="color: #3b73af; text-decoration: none">Investigate approach for a special group identifying contraints otherwise unassigned to a group.</a> </span> </td>
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<th style="color: #707070; font: normal 14px/20px Arial, sans-serif; text-align: left; vertical-align: top; padding: 2px 0">Issue Type:</th>
<td class="has-icon" style="padding: 0; border-collapse: collapse; font: normal 14px/20px Arial, sans-serif; padding: 2px 0 2px 5px; vertical-align: top"> <img src="cid:jira-generated-image-avatar-783cceb2-35fe-40f6-86df-0139c8aa2e5b" height="16" width="16" border="0" align="absmiddle" alt="Improvement" style="vertical-align: text-bottom"> Improvement </td>
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<th style="color: #707070; font: normal 14px/20px Arial, sans-serif; text-align: left; vertical-align: top; padding: 2px 0">Affects Versions:</th>
<td style="padding: 0; border-collapse: collapse; font: normal 14px/20px Arial, sans-serif; padding: 2px 0 2px 5px; vertical-align: top"> 5.4.1.Final </td>
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<td style="padding: 0; border-collapse: collapse; font: normal 14px/20px Arial, sans-serif; padding: 2px 0 2px 5px; vertical-align: top"> Unassigned </td>
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<td style="padding: 0; border-collapse: collapse; font: normal 14px/20px Arial, sans-serif; padding: 2px 0 2px 5px; vertical-align: top"> validators </td>
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<th style="color: #707070; font: normal 14px/20px Arial, sans-serif; text-align: left; vertical-align: top; padding: 2px 0">Created:</th>
<td style="padding: 0; border-collapse: collapse; font: normal 14px/20px Arial, sans-serif; padding: 2px 0 2px 5px; vertical-align: top"> 15/Jun/2017 11:19 AM </td>
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<th style="color: #707070; font: normal 14px/20px Arial, sans-serif; text-align: left; vertical-align: top; padding: 2px 0">Environment:</th>
<td style="padding: 0; border-collapse: collapse; font: normal 14px/20px Arial, sans-serif; padding: 2px 0 2px 5px; vertical-align: top"> JDK 1.8.121 </td>
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<td class="has-icon" style="padding: 0; border-collapse: collapse; font: normal 14px/20px Arial, sans-serif; padding: 2px 0 2px 5px; vertical-align: top"> <img src="cid:jira-generated-image-static-minor-b4c3690f-eea1-48fa-a1bd-67d06b45f20d" height="16" width="16" border="0" align="absmiddle" alt="Minor" style="vertical-align: text-bottom"> Minor </td>
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<td style="padding: 0; border-collapse: collapse; font: normal 14px/20px Arial, sans-serif; padding: 2px 0 2px 5px; vertical-align: top"> <a class="user-hover" rel="tbartley" id="email_tbartley" href="https://hibernate.atlassian.net/secure/ViewProfile.jspa?name=tbartley" style="color:#6c797f;; color: #3b73af; text-decoration: none">Tim Bartley</a> </td>
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<td class="text-paragraph-pattern-container mobile-resize-text " style="padding: 0; border-collapse: collapse; padding: 0 0 10px"> <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0; margin-top: 0">In <a href="https://hibernate.atlassian.net/browse/BVAL-638" class="external-link" rel="nofollow" style="color: #3b73af; text-decoration: none">https://hibernate.atlassian.net/browse/BVAL-638</a> I had a discussion with Gunnar Morling regarding a requirement to be able to specify a particular group when performing validation that selects contraints that are not explcitly assigned to a group.</p> <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0">This is to allow for relaxing constraints is specific circumstances while having default evaluation execute all constraints by default.</p> <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0">For example:</p> <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0">In the class</p>
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<pre class="code-java" style="margin: 10px 0 0; margin-top: 0; max-height: 30em; overflow: auto; white-space: pre-wrap; word-wrap: normal">
<span class="code-keyword" style="color: #000091">public</span> <span class="code-keyword" style="color: #000091">class </span>A {
@NotNull
<span class="code-keyword" style="color: #000091">public</span> <span class="code-object" style="color: #910091">String</span> a1;
@NotNull
<span class="code-keyword" style="color: #000091">public</span> <span class="code-object" style="color: #910091">String</span> a2;
}
I would like a way to express that by <span class="code-keyword" style="color: #000091">default</span> all constraints should be validated but in particular validation points only a subset of these constraints be validated. I want to be able to <span class="code-keyword" style="color: #000091">do</span> <span class="code-keyword" style="color: #000091">this</span> by adjusting the annotation only on those constraints that are to be relaxed.
As suggested by Gunnar, one approach is to introduce some ALL_UNASSIGNED pre-defined group then have the following, <span class="code-keyword" style="color: #000091">for</span> example, <span class="code-keyword" style="color: #000091">if</span> I want to be able to relax the constraint on a2.
</pre>
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</div> <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0">public interface Complete extends Default {};</p> <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0">@GroupSequence(</p> {Complete.class, A.class})<br> public class A {<br> @NotNull<br> public String a1;<br> <br> @NotNull(groups={Complete.class})<br> public String a2;<br> }
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<pre class="code-java" style="margin: 10px 0 0; margin-top: 0; max-height: 30em; overflow: auto; white-space: pre-wrap; word-wrap: normal">
In <span class="code-keyword" style="color: #000091">this</span> <span class="code-keyword" style="color: #000091">case</span>, <span class="code-keyword" style="color: #000091">default</span> validation will enforce the constraints on a1 and a2 but evaluation against ALL_UNASSIGNED would only evaluate the constraint on a1.
It would also be useful to be able to specify specific constraints that are only evaluated in the relaxed <span class="code-keyword" style="color: #000091">case</span> <span class="code-keyword" style="color: #000091">for</span> example:
</pre>
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</div><br> public interface Complete extends Default {};<br> public interface Partial extends {};<br> <br> @GroupSequence({Complete.class, A.class} <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0">)<br> public class A {<br> @NotNull<br> public String a1;</p> <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0"> @NotNull(groups=</p> {Complete.class})<br> public String a2;<br> <br> @NotNull(groups={Complete.class} <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0">)<br> @Null(groups={Partial.class}})<br> public String a3<br> }</p>
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<pre class="code-java" style="margin: 10px 0 0; margin-top: 0; max-height: 30em; overflow: auto; white-space: pre-wrap; word-wrap: normal">
when validation <span class="code-keyword" style="color: #000091">this</span> as:
</pre>
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</div> <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0">validator.validate(instanceOfA, Partial.class, ALL_UNASSIGNED)</p>
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</div> <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0">then the @Null constraint on a3 would be enforced but not otherwise. I think that would just work in the presence of an ALL_UNASSIGNED special validation group.</p> </td>
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