Java Doc for ConnectionPoolDataSource.java in  » Web-Framework » JAT » com » jat » integration » db » connectionpool » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Web Framework » JAT » com.jat.integration.db.connectionpool 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


com.jat.integration.db.GenericDatabaseDataSource
   com.jat.integration.db.connectionpool.ConnectionPoolDataSource

ConnectionPoolDataSource
public class ConnectionPoolDataSource extends GenericDatabaseDataSource (Code)

Title: JAT

Description: This class implements a database connection pool accessing through JDBC.

Configuration:
In the data source name section put the following parameters:

  • driver the JDBC driver class
  • URL the JDBC URL to access to your database
  • min_connections the minimun number if connection in the pool
  • max_connections the maximum number if connection in the pool (use -1 to set unlimited)
  • timeout is the maximum time (in milliseconds) the caller wait for a connection
  • query definition (see query configuration in com.jat.integration.db.GenericDatabaseDataSource for details)
Example:
[myDataSourceName]
driver = sun.jdbc.odbc.JdbcOdbcDriver
url = jdbc:odbc:MyDatabase
min_connections = 2
max_connections = 10
timeout = 20000
query1.name = myQueryName
query1.value = select * from dual

Copyright: Copyright (c) 2004 -2005 Stefano Fratini (stefano.fratini@gmail.com)

Distributed under the terms of the GNU Lesser General Public License, v2.1 or later


author:
   stf
version:
   1.2
since:
   1.2
See Also:   com.jat.integration.DataSource
See Also:   com.jat.integration.db.GenericDatabaseDataSource

Inner Class :class Request

Field Summary
final public static  StringCONFIG_DRIVER
    
final public static  StringCONFIG_MAX_CONNECTIONS
    
final public static  StringCONFIG_MIN_CONNECTIONS
    
final public static  StringCONFIG_TIMEOUT
    
final public static  StringCONFIG_URL
    


Method Summary
protected  ConnectiongetConnection()
    
protected  voidinitDataSource()
    
protected  HashtableputInitProperties(Hashtable hash)
    
public synchronized  voidreleaseConnection(ConnectionWrapper connectionWrapper)
    
public  StringtoString()
    

Field Detail
CONFIG_DRIVER
final public static String CONFIG_DRIVER(Code)



CONFIG_MAX_CONNECTIONS
final public static String CONFIG_MAX_CONNECTIONS(Code)



CONFIG_MIN_CONNECTIONS
final public static String CONFIG_MIN_CONNECTIONS(Code)



CONFIG_TIMEOUT
final public static String CONFIG_TIMEOUT(Code)



CONFIG_URL
final public static String CONFIG_URL(Code)





Method Detail
getConnection
protected Connection getConnection() throws SQLException(Code)



initDataSource
protected void initDataSource() throws com.jat.integration.IntegrationException(Code)



putInitProperties
protected Hashtable putInitProperties(Hashtable hash) throws Exception(Code)



releaseConnection
public synchronized void releaseConnection(ConnectionWrapper connectionWrapper)(Code)



toString
public String toString()(Code)



Methods inherited from com.jat.integration.db.GenericDatabaseDataSource
protected BusinessObjectProperties callProcedure(Connection con, QueryDefinition qf, BusinessObjectProperties parameters) throws IntegrationException(Code)(Java Doc)
final protected void close(Connection con)(Code)(Java Doc)
final protected void commit(Connection con) throws SQLException(Code)(Java Doc)
public BusinessObjectProperties execute(String queryName, BusinessObjectProperties parameters) throws IntegrationException(Code)(Java Doc)
public BusinessObjectPropertyList execute(MultiBusinessObjectProperties multi) throws IntegrationException(Code)(Java Doc)
protected BusinessObjectProperties execute(Connection con, String queryName, BusinessObjectProperties parameters) throws IntegrationException(Code)(Java Doc)
protected BusinessObjectProperties executeQuery(Connection con, QueryDefinition qf, BusinessObjectProperties parameters) throws IntegrationException(Code)(Java Doc)
protected CallableStatement getCallableStatement(QueryDefinition qf, BusinessObjectProperties parameters, Connection con) throws IntegrationException, SQLException(Code)(Java Doc)
abstract protected Connection getConnection() throws SQLException(Code)(Java Doc)
public BusinessObjectPropertyList getData(String queryName, BusinessObjectProperties parameters) throws IntegrationException(Code)(Java Doc)
public GenericOperationDefinition getEmptyOperationDefinition()(Code)(Java Doc)
protected PreparedStatement getPreparedStatement(QueryDefinition qf, BusinessObjectProperties parameters, Connection con) throws IntegrationException, SQLException(Code)(Java Doc)
protected BusinessObjectPropertyList getRows(ResultSet rs) throws SQLException(Code)(Java Doc)
final protected void rollback(Connection con)(Code)(Java Doc)
protected BusinessObjectPropertyList select(QueryDefinition qf, BusinessObjectProperties parameters) throws IntegrationException(Code)(Java Doc)

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