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| <div class="subTitle">org.eclipse.emf.cdo.transaction</div> |
| <h2 title="Interface CDOUserTransaction" class="title">Interface CDOUserTransaction</h2> |
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| <dt>All Known Subinterfaces:</dt> |
| <dd><a href="../../../../../org/eclipse/emf/cdo/transaction/CDOTransaction.html" title="interface in org.eclipse.emf.cdo.transaction">CDOTransaction</a>, <a href="../../../../../org/eclipse/emf/cdo/transaction/CDOXATransaction.html" title="interface in org.eclipse.emf.cdo.transaction">CDOXATransaction</a>, <a href="../../../../../org/eclipse/emf/spi/cdo/InternalCDOTransaction.html" title="interface in org.eclipse.emf.spi.cdo">InternalCDOTransaction</a>, <a href="../../../../../org/eclipse/emf/spi/cdo/InternalCDOUserTransaction.html" title="interface in org.eclipse.emf.spi.cdo">InternalCDOUserTransaction</a>, <a href="../../../../../org/eclipse/emf/spi/cdo/InternalCDOXATransaction.html" title="interface in org.eclipse.emf.spi.cdo">InternalCDOXATransaction</a></dd> |
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| <dl> |
| <dt>All Known Implementing Classes:</dt> |
| <dd><a href="../../../../../org/eclipse/emf/cdo/transaction/CDOPushTransaction.html" title="class in org.eclipse.emf.cdo.transaction">CDOPushTransaction</a></dd> |
| </dl> |
| <hr> |
| <br> |
| <pre>public interface <span class="typeNameLabel">CDOUserTransaction</span></pre> |
| <div class="block">Provides functionality that is common to both <a href="../../../../../org/eclipse/emf/cdo/transaction/CDOTransaction.html" title="interface in org.eclipse.emf.cdo.transaction"><code>single</code></a> transactions and <a href="../../../../../org/eclipse/emf/cdo/transaction/CDOXATransaction.html" title="interface in org.eclipse.emf.cdo.transaction"><code>distributed</code></a> (XA) transactions.</div> |
| <dl> |
| <dt><span class="simpleTagLabel">Since:</span></dt> |
| <dd>2.0</dd> |
| <dt><span class="simpleTagLabel">No Implement</span></dt> |
| <dd>This interface is not intended to be implemented by clients.</dd> |
| <dt><span class="simpleTagLabel">No Extend</span></dt> |
| <dd>This interface is not intended to be extended by clients.</dd> |
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| <h3>Method Summary</h3> |
| <table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="Method Summary table, listing methods, and an explanation"> |
| <caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd"> </span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">Instance Methods</a></span><span class="tabEnd"> </span></span><span id="t3" class="tableTab"><span><a href="javascript:show(4);">Abstract Methods</a></span><span class="tabEnd"> </span></span></caption> |
| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colLast" scope="col">Method and Description</th> |
| </tr> |
| <tr id="i0" class="altColor"> |
| <td class="colFirst"><code><a href="../../../../../org/eclipse/emf/cdo/common/commit/CDOCommitInfo.html" title="interface in org.eclipse.emf.cdo.common.commit">CDOCommitInfo</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/eclipse/emf/cdo/transaction/CDOUserTransaction.html#commit--">commit</a></span>()</code> |
| <div class="block">Same as <a href="../../../../../org/eclipse/emf/cdo/transaction/CDOUserTransaction.html#commit-org.eclipse.core.runtime.IProgressMonitor-"><code>commit(null)</code></a>.</div> |
| </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code><a href="../../../../../org/eclipse/emf/cdo/common/commit/CDOCommitInfo.html" title="interface in org.eclipse.emf.cdo.common.commit">CDOCommitInfo</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/eclipse/emf/cdo/transaction/CDOUserTransaction.html#commit-org.eclipse.core.runtime.IProgressMonitor-">commit</a></span>(<a href="http://help.eclipse.org/topic//org.eclipse.platform.doc.isv/reference/api/org/eclipse/core/runtime/IProgressMonitor.html?is-external=true" title="class or interface in org.eclipse.core.runtime">IProgressMonitor</a> progressMonitor)</code> |
| <div class="block">Commits the modifications of this transaction to the repository and returns a <a href="../../../../../org/eclipse/emf/cdo/common/commit/CDOCommitInfo.html" title="interface in org.eclipse.emf.cdo.common.commit"><code>commit info</code></a> object if successful.</div> |
| </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code><a href="../../../../../org/eclipse/emf/cdo/transaction/CDOUserSavepoint.html" title="interface in org.eclipse.emf.cdo.transaction">CDOUserSavepoint</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/eclipse/emf/cdo/transaction/CDOUserTransaction.html#getLastSavepoint--">getLastSavepoint</a></span>()</code> </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/eclipse/emf/cdo/transaction/CDOUserTransaction.html#rollback--">rollback</a></span>()</code> </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code><a href="../../../../../org/eclipse/emf/cdo/transaction/CDOUserSavepoint.html" title="interface in org.eclipse.emf.cdo.transaction">CDOUserSavepoint</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/eclipse/emf/cdo/transaction/CDOUserTransaction.html#setSavepoint--">setSavepoint</a></span>()</code> |
| <div class="block">Creates a save point in the <a href="../../../../../org/eclipse/emf/cdo/transaction/CDOTransaction.html" title="interface in org.eclipse.emf.cdo.transaction"><code>CDOTransaction</code></a> that can be used to roll back a part of the transaction |
| |
| Save points do not involve the server side, everything is done on the client side.</div> |
| </td> |
| </tr> |
| </table> |
| </li> |
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| <a name="commit--"> |
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| <h4>commit</h4> |
| <pre><a href="../../../../../org/eclipse/emf/cdo/common/commit/CDOCommitInfo.html" title="interface in org.eclipse.emf.cdo.common.commit">CDOCommitInfo</a> commit() |
| throws <a href="../../../../../org/eclipse/emf/cdo/util/ConcurrentAccessException.html" title="class in org.eclipse.emf.cdo.util">ConcurrentAccessException</a>, |
| <a href="../../../../../org/eclipse/emf/cdo/util/CommitException.html" title="class in org.eclipse.emf.cdo.util">CommitException</a></pre> |
| <div class="block">Same as <a href="../../../../../org/eclipse/emf/cdo/transaction/CDOUserTransaction.html#commit-org.eclipse.core.runtime.IProgressMonitor-"><code>commit(null)</code></a>.</div> |
| <dl> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="../../../../../org/eclipse/emf/cdo/util/ConcurrentAccessException.html" title="class in org.eclipse.emf.cdo.util">ConcurrentAccessException</a></code></dd> |
| <dd><code><a href="../../../../../org/eclipse/emf/cdo/util/CommitException.html" title="class in org.eclipse.emf.cdo.util">CommitException</a></code></dd> |
| <dt><span class="simpleTagLabel">Since:</span></dt> |
| <dd>3.0</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="commit-org.eclipse.core.runtime.IProgressMonitor-"> |
| <!-- --> |
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| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>commit</h4> |
| <pre><a href="../../../../../org/eclipse/emf/cdo/common/commit/CDOCommitInfo.html" title="interface in org.eclipse.emf.cdo.common.commit">CDOCommitInfo</a> commit(<a href="http://help.eclipse.org/topic//org.eclipse.platform.doc.isv/reference/api/org/eclipse/core/runtime/IProgressMonitor.html?is-external=true" title="class or interface in org.eclipse.core.runtime">IProgressMonitor</a> progressMonitor) |
| throws <a href="../../../../../org/eclipse/emf/cdo/util/ConcurrentAccessException.html" title="class in org.eclipse.emf.cdo.util">ConcurrentAccessException</a>, |
| <a href="../../../../../org/eclipse/emf/cdo/util/CommitException.html" title="class in org.eclipse.emf.cdo.util">CommitException</a></pre> |
| <div class="block">Commits the modifications of this transaction to the repository and returns a <a href="../../../../../org/eclipse/emf/cdo/common/commit/CDOCommitInfo.html" title="interface in org.eclipse.emf.cdo.common.commit"><code>commit info</code></a> object if successful. |
| <p> |
| Various kinds of problems <b>can</b> cause the commit to fail and not all of them can be avoided by acquiring pessimistic <a href="../../../../../org/eclipse/emf/cdo/CDOObject.html#cdoWriteLock--"><code>locks</code></a> |
| on the modified objects. In particular you <b>must</b> expect and handle <a href="../../../../../org/eclipse/emf/cdo/util/ContainmentCycleException.html" title="class in org.eclipse.emf.cdo.util"><code>containment cycle exceptions</code></a>. The following example shows how |
| write robust transactions: |
| <pre> |
| CDOTransaction transaction = null; |
| |
| try |
| { |
| transaction = session.openTransaction(); |
| |
| for (;;) |
| { |
| transaction.getViewLock().lock(); |
| |
| try |
| { |
| CDOResource resource = transaction.getResource("/stock/resource1"); |
| |
| // Modify the model here... |
| |
| transaction.commit(); |
| break; |
| } |
| catch (ConcurrentAccessException ex) |
| { |
| transaction.rollback(); |
| } |
| catch (CommitException ex) |
| { |
| throw ex.wrap(); |
| } |
| finally |
| { |
| transaction.getViewLock().unlock(); |
| } |
| } |
| } |
| finally |
| { |
| if (transaction != null) |
| { |
| transaction.close(); |
| } |
| } |
| </pre> |
| |
| Note that the transaction stays functional after a any call to the <code>commit()</code> methods. If the transaction is not closed after a commit |
| it can be used to apply additional modifications to the model.</div> |
| <dl> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="../../../../../org/eclipse/emf/cdo/util/ConcurrentAccessException.html" title="class in org.eclipse.emf.cdo.util">ConcurrentAccessException</a></code></dd> |
| <dd><code><a href="../../../../../org/eclipse/emf/cdo/util/CommitException.html" title="class in org.eclipse.emf.cdo.util">CommitException</a></code></dd> |
| <dt><span class="simpleTagLabel">Since:</span></dt> |
| <dd>3.0</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="rollback--"> |
| <!-- --> |
| </a> |
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| <h4>rollback</h4> |
| <pre>void rollback()</pre> |
| </li> |
| </ul> |
| <a name="setSavepoint--"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>setSavepoint</h4> |
| <pre><a href="../../../../../org/eclipse/emf/cdo/transaction/CDOUserSavepoint.html" title="interface in org.eclipse.emf.cdo.transaction">CDOUserSavepoint</a> setSavepoint()</pre> |
| <div class="block">Creates a save point in the <a href="../../../../../org/eclipse/emf/cdo/transaction/CDOTransaction.html" title="interface in org.eclipse.emf.cdo.transaction"><code>CDOTransaction</code></a> that can be used to roll back a part of the transaction |
| <p> |
| Save points do not involve the server side, everything is done on the client side. |
| <p></div> |
| <dl> |
| <dt><span class="simpleTagLabel">Since:</span></dt> |
| <dd>3.0</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getLastSavepoint--"> |
| <!-- --> |
| </a> |
| <ul class="blockListLast"> |
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| <h4>getLastSavepoint</h4> |
| <pre><a href="../../../../../org/eclipse/emf/cdo/transaction/CDOUserSavepoint.html" title="interface in org.eclipse.emf.cdo.transaction">CDOUserSavepoint</a> getLastSavepoint()</pre> |
| <dl> |
| <dt><span class="simpleTagLabel">Since:</span></dt> |
| <dd>3.0</dd> |
| </dl> |
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