com.sleepycat.je.util
Class DbScavenger

java.lang.Object
  com.sleepycat.je.util.DbDump
      com.sleepycat.je.util.DbScavenger

public class DbScavenger
extends DbDump

Used to retrieve as much data as possible from a corrupted environment. This utility is meant to be used programmatically, and is the equivalent to the -R or -r options for DbDump.

To scavenge a database:

  DbScavenger scavenger =
      new DbScavenger(env, outputDirectory, , , );
  scavenger.dump();

The recovered databases will put placed in the outputDirectory with ".dump" file suffixes. The format of the .dump files will be suitable for use with DbLoad.

Field Summary

Fields inherited from class com.sleepycat.je.util.DbDump

dbName, doAggressiveScavengerRun, doScavengerRun, env, envHome, formatUsingPrintable, outputDirectory, outputFile, verbose

Constructor Summary

DbScavenger(Environment env, String outputDirectory, boolean formatUsingPrintable, boolean doAggressiveScavengerRun, boolean verbose)
Create a DbScavenger object for a specific environment.

Method Summary

void	dump() Start the scavenger run.
void	setDumpCorruptedBounds(boolean dumpCorruptedBounds) Set to true if corrupted boundaries should be dumped out.

Methods inherited from class com.sleepycat.je.util.DbDump

dumpOne, main, openEnv, parseArgs, printHeader, printUsage

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

DbScavenger

public DbScavenger(Environment env,
                   String outputDirectory,
                   boolean formatUsingPrintable,
                   boolean doAggressiveScavengerRun,
                   boolean verbose)

Create a DbScavenger object for a specific environment.

Parameters:

env - The Environment containing the database to dump.

outputDirectory - The directory to create the .dump files in.

formatUsingPrintable - true if the dump should use printable characters.

doAggressiveScavengerRun - true if true, then all data records are dumped, regardless of whether they are the latest version or not.

verbose - true if status output should be written to System.out during scavenging.

Method Detail

setDumpCorruptedBounds

public void setDumpCorruptedBounds(boolean dumpCorruptedBounds)

Set to true if corrupted boundaries should be dumped out.

dump

public void dump()
          throws EnvironmentNotFoundException,
                 EnvironmentLockedException,
                 IOException

Start the scavenger run.

Overrides:

dump in class DbDump

Throws:

IOException - in subclasses.

EnvironmentNotFoundException

EnvironmentLockedException