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<img id="email-avatar" src="https://hibernate.onjira.com/secure/useravatar?ownerId=brmeyer&avatarId=11140" alt="" height="48" width="48" border="0" align="left" style="padding:0;margin: 0 16px 16px 0;" />
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<a class="user-hover" rel="brmeyer" id="email_brmeyer" href="https://hibernate.onjira.com/secure/ViewProfile.jspa?name=brmeyer" style="color:#6c797f;">Brett Meyer</a>
updated <img src="https://hibernate.onjira.com/images/icons/improvement.gif" height="16" width="16" border="0" align="absmiddle" alt="Improvement"> <a style='color:#6c797f;text-decoration:none;' href='https://hibernate.onjira.com/browse/HHH-3795'>HHH-3795</a>
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<a style='color:#6c797f;text-decoration:none;' href='https://hibernate.onjira.com/browse/HHH-3795'><strong>Support associations delete-orphan on saveOrUpdate()</strong></a>
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<strong style="font-weight:normal;color:#505050;">Change By:</strong>
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<a class="user-hover" rel="brmeyer" id="email_brmeyer" href="https://hibernate.onjira.com/secure/ViewProfile.jspa?name=brmeyer" style="color:#6c797f;">Brett Meyer</a>
(31/Oct/12 12:45 PM)
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<strong style="font-weight:normal;color:#505050;">Description:</strong>
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<span class="diffremovedchars" style="background-color:#ffe7e7;text-decoration:line-through;">Hello there,<br><br></span>
<span class="diffcontext">I think saveOrUpdate() behaves somewhat unexpected for associations with delete-orphan cascading style:<br><br>Prerequisite: Association is set to cascade="all,delete-orphan" and nullable=true<br><br>1) Within a single session (i.e. a transient object):<br> * Load parent<br> * Delete child<br> * saveOrUpdate()<br>Result: Child is deleted from DB, a DELETE statement was issued<br><br>2) Across multiple session (i.e. a detached object):<br> * Have parent with valid ID, but empty list/set of children<br> * saveOrUpdate()<br>Result: Child is not deleted from DB, an UPDATE statement is issued which sets FK of child to 'null'<br><br>3) like 2) but nullable is FALSE<br>Result: Nothing happens.<br><br>With merge() everything works as expected for detached and transient instances. I would</span>
<span class="diffremovedchars" style="background-color:#ffe7e7;text-decoration:line-through;"> either</span>
<span class="diffcontext"> expect saveOrUpdate()</span>
<span class="diffremovedchars" style="background-color:#ffe7e7;text-decoration:line-through;"> to<br>completely disregard DELETE statements OR</span>
<span class="diffcontext"> behave similar to merge().</span>
<span class="diffremovedchars" style="background-color:#ffe7e7;text-decoration:line-through;"> At least the different results of case 1) and 2) <br>are pretty confusing.<br><br>Best regards,<br><br>Fabian<br><br></span>
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<strong style="font-weight:normal;color:#505050;">Environment:</strong>
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<span class="diffremovedchars" style="background-color:#ffe7e7;text-decoration:line-through;">Hibernate 3.2.6.GA, PostgreSQL 8.3</span>
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<strong style="font-weight:normal;color:#505050;">Affects Version/s:</strong>
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<span class="diffaddedchars" style="background-color:#ddfade;">4.1.7</span>
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<strong style="font-weight:normal;color:#505050;">Summary:</strong>
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<span class="diffremovedchars" style="background-color:#ffe7e7;text-decoration:line-through;">Unexpected behaviour of saveOrUpdate() for</span>
<span class="diffaddedchars" style="background-color:#ddfade;">Support</span>
<span class="diffcontext"> associations</span>
<span class="diffremovedchars" style="background-color:#ffe7e7;text-decoration:line-through;"> with</span>
<span class="diffcontext"> delete-orphan</span>
<span class="diffaddedchars" style="background-color:#ddfade;"> on saveOrUpdate()</span>
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