org.archive.wayback.util.bdb
Class BDBRecordSet

java.lang.Object
  org.archive.wayback.util.bdb.BDBRecordSet

Direct Known Subclasses:

BDBIndex

public class BDBRecordSet
extends Object

Version:

$Date: 2010-09-29 05:28:38 +0700 (Wed, 29 Sep 2010) $, $Revision: 3262 $

Author:

brad

Constructor Summary

BDBRecordSet()

Method Summary

static String	bytesToString(byte[] ba)
void	delete(String keyStr)
String	get(String keyStr) retrieve the value assoicated with keyStr from persistant storage
String	getDbName()
String	getPath()
void	initializeDB(String thePath, String theDbName)
void	insertRecords(Iterator<BDBRecord> itr)
void	put(String keyStr, String valueStr) persistantly store key-value pair
BDBRecordIterator	recordIterator(String startKey)
BDBRecordIterator	recordIterator(String startKey, boolean forward)
void	setDbName(String dbName)
void	setPath(String path)
void	shutdownDB() shut down the BDB.
static byte[]	stringToBytes(String s)

Methods inherited from class java.lang.Object

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

Constructor Detail

BDBRecordSet

public BDBRecordSet()

Method Detail

initializeDB

public void initializeDB(String thePath,
                         String theDbName)
                  throws IOException

Parameters:

thePath - Directory where BDBJE files are stored

theDbName - Name of files in thePath

Throws:

IOException - for usual reasons, plus as database exceptions

shutdownDB

public void shutdownDB()
                throws com.sleepycat.je.DatabaseException

shut down the BDB.

Throws:

com.sleepycat.je.DatabaseException

stringToBytes

public static byte[] stringToBytes(String s)

Parameters:

s -

Returns:

byte array representation of String s in UTF-8

bytesToString

public static String bytesToString(byte[] ba)

Parameters:

ba -

Returns:

String of UTF-8 encoded bytes ba

recordIterator

public BDBRecordIterator recordIterator(String startKey)
                                 throws com.sleepycat.je.DatabaseException

Parameters:

startKey -

Returns:

iterator for BDBRecords

Throws:

com.sleepycat.je.DatabaseException

recordIterator

public BDBRecordIterator recordIterator(String startKey,
                                        boolean forward)
                                 throws com.sleepycat.je.DatabaseException

Parameters:

startKey -

forward -

Returns:

iterator for BDBRecords

Throws:

com.sleepycat.je.DatabaseException

insertRecords

public void insertRecords(Iterator<BDBRecord> itr)

Parameters:

itr -

put

public void put(String keyStr,
                String valueStr)
         throws com.sleepycat.je.DatabaseException

persistantly store key-value pair

Parameters:

keyStr -

valueStr -

Throws:

com.sleepycat.je.DatabaseException

get

public String get(String keyStr)
           throws com.sleepycat.je.DatabaseException

retrieve the value assoicated with keyStr from persistant storage

Parameters:

keyStr -

Returns:

String value associated with key, or null if no key is found or an error occurs

Throws:

com.sleepycat.je.DatabaseException

delete

public void delete(String keyStr)
            throws com.sleepycat.je.DatabaseException

Parameters:

keyStr -

Throws:

com.sleepycat.je.DatabaseException

getDbName

public String getDbName()

Returns:

Returns the dbName.

getPath

public String getPath()

Returns:

Returns the path.

setPath

public void setPath(String path)

Parameters:

path - the path to set

setDbName

public void setDbName(String dbName)

Parameters:

dbName - the dbName to set