content/builds/1.1.0/apache-openjpa-1.1.0/docs/javadoc/org/apache/openjpa/kernel/NoneLockManager.html - openjpa-site - Git at Google

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 NoneLockManager (OpenJPA 1.1.0 API)
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 <FONT SIZE="-1">
 org.apache.openjpa.kernel</FONT>
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 Class NoneLockManager</H2>
 <PRE>
 <A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Object.html" title="class or interface in java.lang">java.lang.Object</A>
   <IMG SRC="../../../../resources/inherit.gif" ALT="extended by "><A HREF="../../../../org/apache/openjpa/kernel/AbstractLockManager.html" title="class in org.apache.openjpa.kernel">org.apache.openjpa.kernel.AbstractLockManager</A>
       <IMG SRC="../../../../resources/inherit.gif" ALT="extended by "><B>org.apache.openjpa.kernel.NoneLockManager</B>
 </PRE>
 <DL>
 <DT><B>All Implemented Interfaces:</B> <DD><A HREF="../../../../org/apache/openjpa/kernel/LockLevels.html" title="interface in org.apache.openjpa.kernel">LockLevels</A>, <A HREF="../../../../org/apache/openjpa/kernel/LockManager.html" title="interface in org.apache.openjpa.kernel">LockManager</A>, <A HREF="../../../../org/apache/openjpa/lib/util/Closeable.html" title="interface in org.apache.openjpa.lib.util">Closeable</A></DD>
 </DL>
 <HR>
 <DL>
 <DT><PRE>public class <B>NoneLockManager</B><DT>extends <A HREF="../../../../org/apache/openjpa/kernel/AbstractLockManager.html" title="class in org.apache.openjpa.kernel">AbstractLockManager</A></DL>
 </PRE>

 <P>
 A lock manager that does not perform any locking.
 <P>

 <P>
 <DL>
 <DT><B>Author:</B></DT>
   <DD>Marc Prud'hommeaux</DD>
 </DL>
 <HR>

 <P>
 <!-- =========== FIELD SUMMARY =========== -->

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 <B>Field Summary</B></FONT></TH>
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 </TABLE>
 &nbsp;<A NAME="fields_inherited_from_class_org.apache.openjpa.kernel.AbstractLockManager"><!-- --></A>
 <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
 <TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
 <TH ALIGN="left"><B>Fields inherited from class org.apache.openjpa.kernel.<A HREF="../../../../org/apache/openjpa/kernel/AbstractLockManager.html" title="class in org.apache.openjpa.kernel">AbstractLockManager</A></B></TH>
 </TR>
 <TR BGCOLOR="white" CLASS="TableRowColor">
 <TD><CODE><A HREF="../../../../org/apache/openjpa/kernel/AbstractLockManager.html#ctx">ctx</A>, <A HREF="../../../../org/apache/openjpa/kernel/AbstractLockManager.html#log">log</A></CODE></TD>
 </TR>
 </TABLE>
 &nbsp;<A NAME="fields_inherited_from_class_org.apache.openjpa.kernel.LockLevels"><!-- --></A>
 <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
 <TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
 <TH ALIGN="left"><B>Fields inherited from interface org.apache.openjpa.kernel.<A HREF="../../../../org/apache/openjpa/kernel/LockLevels.html" title="interface in org.apache.openjpa.kernel">LockLevels</A></B></TH>
 </TR>
 <TR BGCOLOR="white" CLASS="TableRowColor">
 <TD><CODE><A HREF="../../../../org/apache/openjpa/kernel/LockLevels.html#LOCK_NONE">LOCK_NONE</A>, <A HREF="../../../../org/apache/openjpa/kernel/LockLevels.html#LOCK_READ">LOCK_READ</A>, <A HREF="../../../../org/apache/openjpa/kernel/LockLevels.html#LOCK_WRITE">LOCK_WRITE</A></CODE></TD>
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 <TD><CODE><B><A HREF="../../../../org/apache/openjpa/kernel/NoneLockManager.html#NoneLockManager()">NoneLockManager</A></B>()</CODE>

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 <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
 <CODE>&nbsp;int</CODE></FONT></TD>
 <TD><CODE><B><A HREF="../../../../org/apache/openjpa/kernel/NoneLockManager.html#getLockLevel(org.apache.openjpa.kernel.OpenJPAStateManager)">getLockLevel</A></B>(<A HREF="../../../../org/apache/openjpa/kernel/OpenJPAStateManager.html" title="interface in org.apache.openjpa.kernel">OpenJPAStateManager</A>&nbsp;sm)</CODE>

 <BR>
 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Return the lock level of the specified instance, or
  <A HREF="../../../../org/apache/openjpa/kernel/LockLevels.html#LOCK_NONE"><CODE>LockLevels.LOCK_NONE</CODE></A> if not locked.</TD>
 </TR>
 <TR BGCOLOR="white" CLASS="TableRowColor">
 <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
 <CODE>&nbsp;void</CODE></FONT></TD>
 <TD><CODE><B><A HREF="../../../../org/apache/openjpa/kernel/NoneLockManager.html#lock(org.apache.openjpa.kernel.OpenJPAStateManager, int, int, java.lang.Object)">lock</A></B>(<A HREF="../../../../org/apache/openjpa/kernel/OpenJPAStateManager.html" title="interface in org.apache.openjpa.kernel">OpenJPAStateManager</A>&nbsp;sm,
      int&nbsp;level,
      int&nbsp;timeout,
      <A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Object.html" title="class or interface in java.lang">Object</A>&nbsp;context)</CODE>

 <BR>
 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Obtain a lock on the specified object.</TD>
 </TR>
 <TR BGCOLOR="white" CLASS="TableRowColor">
 <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
 <CODE>&nbsp;void</CODE></FONT></TD>
 <TD><CODE><B><A HREF="../../../../org/apache/openjpa/kernel/NoneLockManager.html#release(org.apache.openjpa.kernel.OpenJPAStateManager)">release</A></B>(<A HREF="../../../../org/apache/openjpa/kernel/OpenJPAStateManager.html" title="interface in org.apache.openjpa.kernel">OpenJPAStateManager</A>&nbsp;sm)</CODE>

 <BR>
 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Release the lock on the given object.</TD>
 </TR>
 </TABLE>
 &nbsp;<A NAME="methods_inherited_from_class_org.apache.openjpa.kernel.AbstractLockManager"><!-- --></A>
 <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
 <TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
 <TH ALIGN="left"><B>Methods inherited from class org.apache.openjpa.kernel.<A HREF="../../../../org/apache/openjpa/kernel/AbstractLockManager.html" title="class in org.apache.openjpa.kernel">AbstractLockManager</A></B></TH>
 </TR>
 <TR BGCOLOR="white" CLASS="TableRowColor">
 <TD><CODE><A HREF="../../../../org/apache/openjpa/kernel/AbstractLockManager.html#beginTransaction()">beginTransaction</A>, <A HREF="../../../../org/apache/openjpa/kernel/AbstractLockManager.html#close()">close</A>, <A HREF="../../../../org/apache/openjpa/kernel/AbstractLockManager.html#endTransaction()">endTransaction</A>, <A HREF="../../../../org/apache/openjpa/kernel/AbstractLockManager.html#getContext()">getContext</A>, <A HREF="../../../../org/apache/openjpa/kernel/AbstractLockManager.html#lockAll(java.util.Collection, int, int, java.lang.Object)">lockAll</A>, <A HREF="../../../../org/apache/openjpa/kernel/AbstractLockManager.html#setContext(org.apache.openjpa.kernel.StoreContext)">setContext</A></CODE></TD>
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 <P>

 <!-- ========= CONSTRUCTOR DETAIL ======== -->

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 <A NAME="NoneLockManager()"><!-- --></A><H3>
 NoneLockManager</H3>
 <PRE>
 public <B>NoneLockManager</B>()</PRE>
 <DL>
 </DL>

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 <A NAME="lock(org.apache.openjpa.kernel.OpenJPAStateManager, int, int, java.lang.Object)"><!-- --></A><H3>
 lock</H3>
 <PRE>
 public void <B>lock</B>(<A HREF="../../../../org/apache/openjpa/kernel/OpenJPAStateManager.html" title="interface in org.apache.openjpa.kernel">OpenJPAStateManager</A>&nbsp;sm,
                  int&nbsp;level,
                  int&nbsp;timeout,
                  <A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Object.html" title="class or interface in java.lang">Object</A>&nbsp;context)</PRE>
 <DL>
 <DD><B>Description copied from interface: <CODE><A HREF="../../../../org/apache/openjpa/kernel/LockManager.html#lock(org.apache.openjpa.kernel.OpenJPAStateManager, int, int, java.lang.Object)">LockManager</A></CODE></B></DD>
 <DD>Obtain a lock on the specified object. This method may be called when
  a user explicitly locks an object, and is also called automatically
  for every object accessed during a transaction. The implementation
  must track already-locked objects, and must be optimized to return
  quickly when the given object does not need additional locking.
  The lock manager might use the state manager's lock object for
  bookkeeping information.
 <P>
 <DD><DL>
 <DT><B>Parameters:</B><DD><CODE>sm</CODE> - the object to lock<DD><CODE>level</CODE> - one of the lock constants defined in <A HREF="../../../../org/apache/openjpa/kernel/LockLevels.html" title="interface in org.apache.openjpa.kernel"><CODE>LockLevels</CODE></A>,
  or a custom level<DD><CODE>timeout</CODE> - the timeout in milliseconds, or a negative number for
  no timeout<DD><CODE>context</CODE> - the context information passed from the store manager
  to the persistence context, if any; lock managers
  specific to a certain back end may be able to take
  advantage of this; others should ignore it<DT><B>See Also:</B><DD><A HREF="../../../../org/apache/openjpa/kernel/OpenJPAStateManager.html#setLock(java.lang.Object)"><CODE>OpenJPAStateManager.setLock(java.lang.Object)</CODE></A></DL>
 </DD>
 </DL>
 <HR>

 <A NAME="release(org.apache.openjpa.kernel.OpenJPAStateManager)"><!-- --></A><H3>
 release</H3>
 <PRE>
 public void <B>release</B>(<A HREF="../../../../org/apache/openjpa/kernel/OpenJPAStateManager.html" title="interface in org.apache.openjpa.kernel">OpenJPAStateManager</A>&nbsp;sm)</PRE>
 <DL>
 <DD><B>Description copied from interface: <CODE><A HREF="../../../../org/apache/openjpa/kernel/LockManager.html#release(org.apache.openjpa.kernel.OpenJPAStateManager)">LockManager</A></CODE></B></DD>
 <DD>Release the lock on the given object. This method will be called
  automatically for each state manager with a lock object set on
  transaction completion, just before the call to <A HREF="../../../../org/apache/openjpa/kernel/LockManager.html#endTransaction()"><CODE>LockManager.endTransaction()</CODE></A>.
  The lock manager should null the state manager's lock object. Note
  that some state manager may be garbage collected during a transaction;
  thus lock managers cannot rely on this method being called for every
  state manager.
 <P>
 <DD><DL>
 <DT><B>See Also:</B><DD><A HREF="../../../../org/apache/openjpa/kernel/OpenJPAStateManager.html#setLock(java.lang.Object)"><CODE>OpenJPAStateManager.setLock(java.lang.Object)</CODE></A></DL>
 </DD>
 </DL>
 <HR>

 <A NAME="getLockLevel(org.apache.openjpa.kernel.OpenJPAStateManager)"><!-- --></A><H3>
 getLockLevel</H3>
 <PRE>
 public int <B>getLockLevel</B>(<A HREF="../../../../org/apache/openjpa/kernel/OpenJPAStateManager.html" title="interface in org.apache.openjpa.kernel">OpenJPAStateManager</A>&nbsp;sm)</PRE>
 <DL>
 <DD><B>Description copied from interface: <CODE><A HREF="../../../../org/apache/openjpa/kernel/LockManager.html#getLockLevel(org.apache.openjpa.kernel.OpenJPAStateManager)">LockManager</A></CODE></B></DD>
 <DD>Return the lock level of the specified instance, or
  <A HREF="../../../../org/apache/openjpa/kernel/LockLevels.html#LOCK_NONE"><CODE>LockLevels.LOCK_NONE</CODE></A> if not locked.
 <P>
 <DD><DL>
 </DL>
 </DD>
 </DL>
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