org.lionsoul.ip2region

Class DbSearcher

java.lang.Object

org.lionsoul.ip2region.DbSearcher

public class DbSearcher
extends Object

ip db searcher class (Not thread safe)

Author:

chenxin

Field Summary

Fields

Modifier and Type	Field and Description
static int	BINARY_ALGORITHM
static int	BTREE_ALGORITHM
static int	MEMORY_ALGORITYM

Constructor Summary

Constructors

Constructor and Description
DbSearcher(DbConfig dbConfig, String dbFile) construct class

Method Summary

Modifier and Type	Method and Description
DataBlock	binarySearch(long ip) get the region with a int ip address with binary search algorithm
DataBlock	binarySearch(String ip) get the region throught the ip address with binary search algorithm
DataBlock	btreeSearch(long ip) get the region with a int ip address with b-tree algorithm
DataBlock	btreeSearch(String ip) get the region throught the ip address with b-tree search algorithm
void	close() close the db
DataBlock	getByIndexPtr(long ptr) get by index ptr
DbConfig	getDbConfig() get the db config
DataBlock	memorySearch(long ip) get the region with a int ip address with memory binary search algorithm
DataBlock	memorySearch(String ip) get the region throught the ip address with memory binary search algorithm

Methods inherited from class java.lang.Object

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

Field Detail

BTREE_ALGORITHM

public static final int BTREE_ALGORITHM

See Also:

Constant Field Values

BINARY_ALGORITHM

public static final int BINARY_ALGORITHM

See Also:

Constant Field Values

MEMORY_ALGORITYM

public static final int MEMORY_ALGORITYM

See Also:

Constant Field Values

Constructor Detail

DbSearcher

public DbSearcher(DbConfig dbConfig,
                  String dbFile)
           throws FileNotFoundException

construct class

Parameters:

bdConfig -

dbFile -

Throws:

FileNotFoundException

Method Detail

memorySearch

public DataBlock memorySearch(long ip)
                       throws IOException

get the region with a int ip address with memory binary search algorithm

Parameters:

ip -

Throws:

IOException

memorySearch

public DataBlock memorySearch(String ip)
                       throws IOException

get the region throught the ip address with memory binary search algorithm

Parameters:

ip -

Returns:

DataBlock

Throws:

IOException

getByIndexPtr

public DataBlock getByIndexPtr(long ptr)
                        throws IOException

get by index ptr

Parameters:

indexPtr -

Throws:

IOException

btreeSearch

public DataBlock btreeSearch(long ip)
                      throws IOException

get the region with a int ip address with b-tree algorithm

Parameters:

ip -

Throws:

IOException

btreeSearch

public DataBlock btreeSearch(String ip)
                      throws IOException

get the region throught the ip address with b-tree search algorithm

Parameters:

ip -

Returns:

DataBlock

Throws:

IOException

binarySearch

public DataBlock binarySearch(long ip)
                       throws IOException

get the region with a int ip address with binary search algorithm

Parameters:

ip -

Throws:

IOException

binarySearch

public DataBlock binarySearch(String ip)
                       throws IOException

get the region throught the ip address with binary search algorithm

Parameters:

ip -

Returns:

DataBlock

Throws:

IOException

getDbConfig

public DbConfig getDbConfig()

get the db config

Returns:

DbConfig

close

public void close()
           throws IOException

close the db

Throws:

IOException