Package org.objectweb.joram.client.jms.pool

Class ConnectionPool

java.lang.Object

org.objectweb.joram.client.jms.pool.ConnectionPool

public class ConnectionPool
extends Object

Implements a pool of connection resulting of a unique ConnectionFactory object. Connections are sorted by identity.

Field Summary

Fields

Modifier and Type	Field	Description
private Map<ConnectionKey,LinkedList<PooledConnection>>	cache	Map containing the lists of connections for each identity
(package private) int	maxFreeConnections	Maximum number of free connections for an identity in the pool

Constructor Summary

Constructors

Constructor	Description
ConnectionPool(int maxFreeConnections)	Creates a new pool of connections.

Method Summary

Modifier and Type	Method	Description
PooledConnection	alloc(String name, String password)	Allocates a Connection for the specified identity.
void	free(PooledConnection cnx)	Frees the specified connection, depending of the number of free connections in the pool this connection is closed or inserted in the pool.
int	getMaxFreeConnections()	Gets the maximum number of free connections for an identity in the pool.
void	setMaxFreeConnections(int maxFreeConnections)	Returns the maximum number of free connections for an identity in the pool.

Methods inherited from class java.lang.Object

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

Field Detail

maxFreeConnections

int maxFreeConnections

Maximum number of free connections for an identity in the pool

cache

private Map<ConnectionKey,LinkedList<PooledConnection>> cache

Map containing the lists of connections for each identity

Constructor Detail

ConnectionPool

public ConnectionPool(int maxFreeConnections)

Creates a new pool of connections.

Parameters:

maxFreeConnections - the maximum number of free connections for an identity in the pool.

Method Detail

getMaxFreeConnections

public int getMaxFreeConnections()

Gets the maximum number of free connections for an identity in the pool.

Returns:

the maxFreeConnections

setMaxFreeConnections

public void setMaxFreeConnections(int maxFreeConnections)

Returns the maximum number of free connections for an identity in the pool.

Parameters:

maxFreeConnections - the maxFreeConnections to set

alloc

public PooledConnection alloc(String name,
                              String password)

Allocates a Connection for the specified identity.

Parameters:

name - name of user.

password - password of user.

Returns:

A connection for the specified identity.

free

public void free(PooledConnection cnx)
          throws JMSException

Frees the specified connection, depending of the number of free connections in the pool this connection is closed or inserted in the pool.

Parameters:

cnx - The connection to free.

Throws:

JMSException - an error occurs during the cleanup of the connection.