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<td class="page-title-pattern-first-line " style="padding: 0px; border-collapse: collapse; font-family: Arial, sans-serif; font-size: 14px; padding-top: 10px"> <a href="https://hibernate.atlassian.net/browse/HHH" style="color: #3b73af; text-decoration: none">Hibernate ORM</a> / <a href="https://hibernate.atlassian.net/browse/HHH-9586" style="color: #3b73af; text-decoration: none"><img src="cid:jira-generated-image-static-bug-e37d1830-f666-4069-9d27-81572fee4955" height="16" width="16" border="0" align="absmiddle" alt="Bug" style="vertical-align: text-bottom" /></a> <a href="https://hibernate.atlassian.net/browse/HHH-9586" style="color: #3b73af; text-decoration: none">HHH-9586</a>
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<td style="vertical-align: top;; padding: 0px; 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/HHH-9586" style="color: #3b73af; text-decoration: none">optimisic-lock attribute with in a component is not taking effect</a> </span>
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Issue Type:
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Unassigned
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Components:
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core
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Created:
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26/Jan/2015 10:20 AM
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Environment:
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hibernate 3.2.x and hibernate 3.6.10 <br /> mysql 5.5.x <br /> jdk 1.7.x
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Reporter:
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<td style="padding: 0px; border-collapse: collapse; font: normal 14px/20px Arial, sans-serif; padding: 2px 0 2px 5px; vertical-align: top"> <a class="user-hover" rel="causalbody" id="email_causalbody" href="https://hibernate.atlassian.net/secure/ViewProfile.jspa?name=causalbody" style="color:#6c797f;; color: #3b73af; text-decoration: none">sriram krishnan</a>
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<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">I am trying to turn off optimistic locking for a particular field within a component. Turning off at the component level (which applies for all fields in component) works. But not for a particular field with in the component. I am using hibernate 3.2.x (note I also tried with hibernate 3.6.10)</p>
<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">Let me explain more about the problem</p>
<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">Member.hbm.xml</p>
<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0"> <class name="com.test.core.model.member.Member" abstract="true"<br /> table="MEMBER" optimistic-lock="dirty" dynamic-update="true"<br /> polymorphism="explicit" discriminator-value="LITE"><br /> .....<br /> .....<br /> <component name="helper" class="com.test.core.model.Helper"><br /> <property name="status"><br /> <column name="STATUS" /><br /> <type name="org.hibernate.type.EnumType"><br /> <param name="enumClass"><br /> com.test.core.model.Helper$Status<br /> </param><br /> </type><br /> </property><br /> <property name="changeXML" type="string"><br /> <column name="CHANGE_XML" /><br /> </property><br /> <property name="lastChange" type="timestamp"><br /> <column name="LAST_CHANGE" /><br /> </property><br /> </component><br /> </class><br /> </hibernate-mapping><br /> I am constrained to use optimistic-lock="dirty" at the class level, so I cannot switch to "version". However would like to disable optimistic checks by hibernate for changeXML field inside the component.</p>
<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">So I changed</p>
<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0"><property name="changeXML" type="string" ><br /> to<br /> <property name="changeXML" type="string" optimistic-lock="false"><br /> Because this is with in a component this setting is not respected for some reason. As a result hibernate internally generates the verification query before committing an update to changeXML.</p>
<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">ie update MEMBER SET CHANGE_XML ="NEWVALUE" WHERE ID=SOMETHING AND CHANGE_XML=OLDVALUE</p>
<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">However changing at the component level ie changing from</p>
<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0"><component name="helper" class="com.test.core.model.Helper"><br /> to <br /> <component name="helper" class="com.test.core.model.Helper" optimistic-lock="false"> <br /> works by respecting this setting and hibernate doesnt generate the update statment</p>
<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">We cannot settle with that option of changing at component level because concurrent updates to "status" is expected and will not fail with staleobjectstateexception.</p>
<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">Hibernate only seems to respect the "optimistic-lock" at <component> and not if I want to turn off for a particular <property> with in the component</p>
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