diff options
Diffstat (limited to 'plugins/org.eclipse.emf.cdo.doc/javadoc/org/eclipse/emf/cdo/transaction/CDOUserTransaction.html')
| -rw-r--r-- | plugins/org.eclipse.emf.cdo.doc/javadoc/org/eclipse/emf/cdo/transaction/CDOUserTransaction.html | 62 |
1 files changed, 58 insertions, 4 deletions
diff --git a/plugins/org.eclipse.emf.cdo.doc/javadoc/org/eclipse/emf/cdo/transaction/CDOUserTransaction.html b/plugins/org.eclipse.emf.cdo.doc/javadoc/org/eclipse/emf/cdo/transaction/CDOUserTransaction.html index 431dfdd85b..77b64bb6ea 100644 --- a/plugins/org.eclipse.emf.cdo.doc/javadoc/org/eclipse/emf/cdo/transaction/CDOUserTransaction.html +++ b/plugins/org.eclipse.emf.cdo.doc/javadoc/org/eclipse/emf/cdo/transaction/CDOUserTransaction.html @@ -144,7 +144,7 @@ Provides functionality that is common to both <A HREF="../../../../../org/eclips <TD><CODE><B><A HREF="../../../../../org/eclipse/emf/cdo/transaction/CDOUserTransaction.html#commit()">commit</A></B>()</CODE> <BR> - </TD> + Same as <A HREF="../../../../../org/eclipse/emf/cdo/transaction/CDOUserTransaction.html#commit(org.eclipse.core.runtime.IProgressMonitor)"><CODE>commit(null)</CODE></A>.</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> @@ -152,7 +152,7 @@ Provides functionality that is common to both <A HREF="../../../../../org/eclips <TD><CODE><B><A HREF="../../../../../org/eclipse/emf/cdo/transaction/CDOUserTransaction.html#commit(org.eclipse.core.runtime.IProgressMonitor)">commit</A></B>(<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> <BR> - </TD> + 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.</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> @@ -198,11 +198,15 @@ Provides functionality that is common to both <A HREF="../../../../../org/eclips commit</H3> <PRE> <A HREF="../../../../../org/eclipse/emf/cdo/common/commit/CDOCommitInfo.html" title="interface in org.eclipse.emf.cdo.common.commit">CDOCommitInfo</A> <B>commit</B>() - throws <A HREF="../../../../../org/eclipse/emf/cdo/util/CommitException.html" title="class in org.eclipse.emf.cdo.util">CommitException</A></PRE> + 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> <DL> +<DD>Same as <A HREF="../../../../../org/eclipse/emf/cdo/transaction/CDOUserTransaction.html#commit(org.eclipse.core.runtime.IProgressMonitor)"><CODE>commit(null)</CODE></A>. +<P> <DD><DL> <DT><B>Throws:</B> +<DD><CODE><A HREF="../../../../../org/eclipse/emf/cdo/util/ConcurrentAccessException.html" title="class in org.eclipse.emf.cdo.util">ConcurrentAccessException</A></CODE> <DD><CODE><A HREF="../../../../../org/eclipse/emf/cdo/util/CommitException.html" title="class in org.eclipse.emf.cdo.util">CommitException</A></CODE><DT><B>Since:</B></DT> <DD>3.0</DD> </DL> @@ -214,11 +218,61 @@ commit</H3> commit</H3> <PRE> <A HREF="../../../../../org/eclipse/emf/cdo/common/commit/CDOCommitInfo.html" title="interface in org.eclipse.emf.cdo.common.commit">CDOCommitInfo</A> <B>commit</B>(<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/CommitException.html" title="class in org.eclipse.emf.cdo.util">CommitException</A></PRE> + 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> <DL> +<DD>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 (;;) + { + try + { + synchronized (transaction) + { + 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 + { + 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. +<P> <DD><DL> <DT><B>Throws:</B> +<DD><CODE><A HREF="../../../../../org/eclipse/emf/cdo/util/ConcurrentAccessException.html" title="class in org.eclipse.emf.cdo.util">ConcurrentAccessException</A></CODE> <DD><CODE><A HREF="../../../../../org/eclipse/emf/cdo/util/CommitException.html" title="class in org.eclipse.emf.cdo.util">CommitException</A></CODE><DT><B>Since:</B></DT> <DD>3.0</DD> </DL> |