Constructor Detail

• Recover

  public Recover()

Method Detail

• main

  public static void main​(java.lang.String... args)
                   throws java.sql.SQLException

  Options are case sensitive.

  Supported options

  [-help] or [-?]	Print the list of options
  [-dir <dir>]	The directory (default: .)
  [-db <database>]	The database name (all databases if not set)
  [-trace]	Print additional trace information
  [-transactionLog]	Print the transaction log

  Encrypted databases need to be decrypted first.

  Parameters:

  args - the command line arguments

  Throws:

  java.sql.SQLException - on failure

• runTool

  public void runTool​(java.lang.String... args)
               throws java.sql.SQLException

  Dumps the contents of a database file to a human readable text file. This text file can be used to recover most of the data. This tool does not open the database and can be used even if the database files are corrupted. A database can get corrupted if there is a bug in the database engine or file system software, or if an application writes into the database file that doesn't understand the file format, or if there is a hardware problem.

  Specified by:

  runTool in class org.h2.util.Tool

  Parameters:

  args - the command line arguments

  Throws:

  java.sql.SQLException - on failure

• readBlobMap

  public static java.io.InputStream readBlobMap​(java.sql.Connection conn,
                                                long lobId,
                                                long precision)
                                         throws java.sql.SQLException

  INTERNAL

  Parameters:

  conn - to use

  lobId - id of the LOB stream

  precision - not used

  Returns:

  InputStream to read LOB content from

  Throws:

  java.sql.SQLException - on failure

• readClobMap

  public static java.io.Reader readClobMap​(java.sql.Connection conn,
                                           long lobId,
                                           long precision)
                                    throws java.lang.Exception

  INTERNAL

  Parameters:

  conn - to use

  lobId - id of the LOB stream

  precision - not used

  Returns:

  Reader to read LOB content from

  Throws:

  java.sql.SQLException - on failure

  java.lang.Exception

• execute

  public static void execute​(java.lang.String dir,
                             java.lang.String db)
                      throws java.sql.SQLException

  Dumps the contents of a database to a SQL script file.

  Parameters:

  dir - the directory

  db - the database name (null for all databases)

  Throws:

  java.sql.SQLException - on failure

• getDatabasePath

  public java.lang.String getDatabasePath()

  INTERNAL

  Specified by:

  getDatabasePath in interface org.h2.store.DataHandler

  Returns:

  the database path

• openFile

  public org.h2.store.FileStore openFile​(java.lang.String name,
                                         java.lang.String mode,
                                         boolean mustExist)

  INTERNAL

  Specified by:

  openFile in interface org.h2.store.DataHandler

  Parameters:

  name - the file name

  mode - the mode

  mustExist - whether the file must already exist

  Returns:

  the file

• checkPowerOff

  public void checkPowerOff()

  INTERNAL

  Specified by:

  checkPowerOff in interface org.h2.store.DataHandler

• checkWritingAllowed

  public void checkWritingAllowed()

  INTERNAL

  Specified by:

  checkWritingAllowed in interface org.h2.store.DataHandler

• getMaxLengthInplaceLob

  public int getMaxLengthInplaceLob()

  INTERNAL

  Specified by:

  getMaxLengthInplaceLob in interface org.h2.store.DataHandler

  Returns:

  the maximum size

• getLobSyncObject

  public java.lang.Object getLobSyncObject()

  INTERNAL

  Specified by:

  getLobSyncObject in interface org.h2.store.DataHandler

  Returns:

  the synchronization object

• getLobFileListCache

  public org.h2.util.SmallLRUCache<java.lang.String,​java.lang.String[]> getLobFileListCache()

  INTERNAL

  Specified by:

  getLobFileListCache in interface org.h2.store.DataHandler

  Returns:

  the cache or null

• getTempFileDeleter

  public org.h2.util.TempFileDeleter getTempFileDeleter()

  INTERNAL

  Specified by:

  getTempFileDeleter in interface org.h2.store.DataHandler

  Returns:

  the temp file deleter

• getLobStorage

  public org.h2.store.LobStorageInterface getLobStorage()

  INTERNAL

  Specified by:

  getLobStorage in interface org.h2.store.DataHandler

  Returns:

  the lob storage mechanism

• readLob

  public int readLob​(long lobId,
                     byte[] hmac,
                     long offset,
                     byte[] buff,
                     int off,
                     int length)

  INTERNAL

  Specified by:

  readLob in interface org.h2.store.DataHandler

  Parameters:

  lobId - the lob id

  hmac - the message authentication code

  offset - the offset within the lob

  buff - the target buffer

  off - the offset within the target buffer

  length - the number of bytes to read

  Returns:

  the number of bytes read

• getCompareMode

  public org.h2.value.CompareMode getCompareMode()

  Description copied from interface: org.h2.store.DataHandler
  Return compare mode.

  Specified by:

  getCompareMode in interface org.h2.store.DataHandler

  Returns:

  Compare mode.