Package overit.geocall.sql

Class DataSourceConnectionPool

java.lang.Object

overit.geocall.sql.ConnectionPool<DataSourcePooledConnection>

overit.geocall.sql.DataSourceConnectionPool

public class DataSourceConnectionPool
extends ConnectionPool<DataSourcePooledConnection>

Class that implements the DataSource ConnectionPool, that uses the Java Naming and Directory Interface (JNDI) API

Field Summary

Fields

Modifier and Type	Field	Description
protected final DataSource	_ds
protected final HashSet	_locked
protected final WeakHashMap<PooledConnectionInfo,Object>	_whm
static final String	JAVA_COMP_ENV

Fields inherited from class overit.geocall.sql.ConnectionPool

_dbom, _dbSetupStatments, _maxQueryRows, _name, _ph, _qh, cross, encryptionKey, TYPE_DATASOURCE, TYPE_ELASTIC, TYPE_STANDARD

Constructor Summary

Constructors

Constructor	Description
DataSourceConnectionPool(String name, String jndiName)	Creates a DataSourceConnectionPool with the specified names and parameters

Method Summary

Modifier and Type	Method	Description
DataSourcePooledConnection	getConnection(String activity)	Extracts a Connection from the pool
List<PooledConnectionInfo>	getConnectionInfo()	Returns the informations about the connections of the pool
int	locked()	Returns the number of locked connections, i.e. the connections that are currently used by the application
void	releaseConnection(DataSourcePooledConnection pc)	Releases a Connection previously extracted with getConnection()
int	size()	Returns the size of the ConnectionPool

Methods inherited from class overit.geocall.sql.ConnectionPool

dispose, getCross, getDBObjectMap, getDBType, getEncryptionKey, getHistory, getMaxQueryRows, getName, getParameters, getQueryHistory, setCross, setDBType, setEncryptionKey

Methods inherited from class java.lang.Object

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

Field Details

JAVA_COMP_ENV

public static final String JAVA_COMP_ENV

See Also:

• Constant Field Values

_ds

protected final DataSource _ds

_locked

protected final HashSet _locked

_whm

protected final WeakHashMap<PooledConnectionInfo,Object> _whm

Constructor Details

DataSourceConnectionPool

public DataSourceConnectionPool(String name,
 String jndiName)
                         throws NamingException

Creates a DataSourceConnectionPool with the specified names and parameters

Parameters:

name - The name of the ConnectionPool

jndiName - The JNDI name of the DataSource object to look up

Throws:

NamingException - If an error occurs during the creations, a NamingException will be thrown

Method Details

getConnection

public DataSourcePooledConnection getConnection(String activity)
                                         throws SQLException

Description copied from class: ConnectionPool

Extracts a Connection from the pool

Specified by:

getConnection in class ConnectionPool<DataSourcePooledConnection>

Parameters:

activity - The motivation / operation for which the extract request originates

Returns:

The Connection extracted

Throws:

SQLException - If there is an error during the extraction, an SQLException will be raised

releaseConnection

public void releaseConnection(DataSourcePooledConnection pc)
                       throws SQLException

Description copied from class: ConnectionPool

Releases a Connection previously extracted with getConnection()

Specified by:

releaseConnection in class ConnectionPool<DataSourcePooledConnection>

Parameters:

pc - The Connection to release

Throws:

SQLException - If there is an error during the release, an SQLException will be raised

locked

public int locked()

Description copied from class: ConnectionPool

Returns the number of locked connections, i.e. the connections that are currently used by the application

Specified by:

locked in class ConnectionPool<DataSourcePooledConnection>

Returns:

The number of currently locked connections

size

public int size()

Description copied from class: ConnectionPool

Returns the size of the ConnectionPool

Specified by:

size in class ConnectionPool<DataSourcePooledConnection>

Returns:

The number of Connection of this instance of ConnectionPool

getConnectionInfo

public List<PooledConnectionInfo> getConnectionInfo()

Description copied from class: ConnectionPool

Returns the informations about the connections of the pool

Specified by:

getConnectionInfo in class ConnectionPool<DataSourcePooledConnection>

Returns:

The List that contains the informations about the connections