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RecoveryOperation (Oracle - Berkeley DB Java API)
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<H2>

com.sleepycat.db
 
Class RecoveryOperation</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 ">com.sleepycat.db.RecoveryOperation
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<DT><PRE>public final class RecoveryOperation<DT>extends <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></DL>
</PRE>

The recovery operation being performed when <A HREF="../../../com/sleepycat/db/LogRecordHandler.html#handleLogRecord(com.sleepycat.db.Environment, com.sleepycat.db.DatabaseEntry, com.sleepycat.db.LogSequenceNumber, com.sleepycat.db.RecoveryOperation)"><CODE>LogRecordHandler.handleLogRecord</CODE></A> is called.

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<CODE>static&nbsp;<A HREF="../../../com/sleepycat/db/RecoveryOperation.html" title="class in com.sleepycat.db">RecoveryOperation</A></CODE></TD>
<TD><CODE><A HREF="../../../com/sleepycat/db/RecoveryOperation.html#ABORT">ABORT</A></CODE>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The log is being read backward during a transaction abort; undo the
 operation described by the log record.</TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%">
<CODE>static&nbsp;<A HREF="../../../com/sleepycat/db/RecoveryOperation.html" title="class in com.sleepycat.db">RecoveryOperation</A></CODE></TD>
<TD><CODE><A HREF="../../../com/sleepycat/db/RecoveryOperation.html#APPLY">APPLY</A></CODE>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The log is being applied on a replica site; redo the operation
 described by the log record.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%">
<CODE>static&nbsp;<A HREF="../../../com/sleepycat/db/RecoveryOperation.html" title="class in com.sleepycat.db">RecoveryOperation</A></CODE></TD>
<TD><CODE><A HREF="../../../com/sleepycat/db/RecoveryOperation.html#BACKWARD_ROLL">BACKWARD_ROLL</A></CODE>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The log is being read backward to determine which transactions have
 been committed and to abort those operations that were not; undo the
 operation described by the log record.</TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%">
<CODE>static&nbsp;<A HREF="../../../com/sleepycat/db/RecoveryOperation.html" title="class in com.sleepycat.db">RecoveryOperation</A></CODE></TD>
<TD><CODE><A HREF="../../../com/sleepycat/db/RecoveryOperation.html#FORWARD_ROLL">FORWARD_ROLL</A></CODE>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The log is being played forward; redo the operation described by the log
 record.</TD>
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<TD ALIGN="right" VALIGN="top" WIDTH="1%">
<CODE>static&nbsp;<A HREF="../../../com/sleepycat/db/RecoveryOperation.html" title="class in com.sleepycat.db">RecoveryOperation</A></CODE></TD>
<TD><CODE><A HREF="../../../com/sleepycat/db/RecoveryOperation.html#PRINT">PRINT</A></CODE>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The log is being printed for debugging purposes; print the contents of
 this log record in the desired format.</TD>
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<CODE>static&nbsp;<A HREF="../../../com/sleepycat/db/RecoveryOperation.html" title="class in com.sleepycat.db">RecoveryOperation</A></CODE></TD>
<TD><CODE><A HREF="../../../com/sleepycat/db/RecoveryOperation.html#fromFlag(int)">fromFlag</A>(int&nbsp;flag)</CODE>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Internal: this is public only so it can be called from an internal
 package.</TD>
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<CODE>&nbsp;<A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A></CODE></TD>
<TD><CODE><A HREF="../../../com/sleepycat/db/RecoveryOperation.html#toString()">toString</A>()</CODE>

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<A NAME="BACKWARD_ROLL"></A><H3>
BACKWARD_ROLL</H3>
<PRE>
public static final <A HREF="../../../com/sleepycat/db/RecoveryOperation.html" title="class in com.sleepycat.db">RecoveryOperation</A> BACKWARD_ROLL</PRE>
<DL>
<DD>The log is being read backward to determine which transactions have
 been committed and to abort those operations that were not; undo the
 operation described by the log record.

<DL>
</DL>
</DL>
<HR>

<A NAME="FORWARD_ROLL"></A><H3>
FORWARD_ROLL</H3>
<PRE>
public static final <A HREF="../../../com/sleepycat/db/RecoveryOperation.html" title="class in com.sleepycat.db">RecoveryOperation</A> FORWARD_ROLL</PRE>
<DL>
<DD>The log is being played forward; redo the operation described by the log
 record.
 
 The FORWARD_ROLL and APPLY operations frequently imply the same actions,
 redoing changes that appear in the log record, although if a recovery
 function is to be used on a replication client where reads may be taking
 place concurrently with the processing of incoming messages, APPLY
 operations should also perform appropriate locking.

<DL>
</DL>
</DL>
<HR>

<A NAME="ABORT"></A><H3>
ABORT</H3>
<PRE>
public static final <A HREF="../../../com/sleepycat/db/RecoveryOperation.html" title="class in com.sleepycat.db">RecoveryOperation</A> ABORT</PRE>
<DL>
<DD>The log is being read backward during a transaction abort; undo the
 operation described by the log record.

<DL>
</DL>
</DL>
<HR>

<A NAME="APPLY"></A><H3>
APPLY</H3>
<PRE>
public static final <A HREF="../../../com/sleepycat/db/RecoveryOperation.html" title="class in com.sleepycat.db">RecoveryOperation</A> APPLY</PRE>
<DL>
<DD>The log is being applied on a replica site; redo the operation
 described by the log record.
 
 The FORWARD_ROLL and APPLY operations frequently imply the same actions,
 redoing changes that appear in the log record, although if a recovery
 function is to be used on a replication client where reads may be taking
 place concurrently with the processing of incoming messages, APPLY
 operations should also perform appropriate locking.

<DL>
</DL>
</DL>
<HR>

<A NAME="PRINT"></A><H3>
PRINT</H3>
<PRE>
public static final <A HREF="../../../com/sleepycat/db/RecoveryOperation.html" title="class in com.sleepycat.db">RecoveryOperation</A> PRINT</PRE>
<DL>
<DD>The log is being printed for debugging purposes; print the contents of
 this log record in the desired format.

<DL>
</DL>
</DL>

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<A NAME="toString()"></A><H3>
toString</H3>
<PRE>
public <A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A> toString()</PRE>
<DL>
<DD>

<DD><DL>
<DT>Overrides:<DD><CODE><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Object.html#toString()" title="class or interface in java.lang">toString</A></CODE> in class <CODE><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></CODE></DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="fromFlag(int)"></A><H3>
fromFlag</H3>
<PRE>
public static <A HREF="../../../com/sleepycat/db/RecoveryOperation.html" title="class in com.sleepycat.db">RecoveryOperation</A> fromFlag(int&nbsp;flag)</PRE>
<DL>
<DD>Internal: this is public only so it can be called from an internal
 package.

<DD><DL>
<DT>Parameters:<DD><CODE>flag</CODE> - the internal flag value to be wrapped in a RecoveryException object</DL>
</DD>
</DL>

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