org.datanucleus.store.rdbms.datasource.dbcp.managed

Class PoolableManagedConnectionFactory

java.lang.Object

org.datanucleus.store.rdbms.datasource.dbcp.PoolableConnectionFactory

org.datanucleus.store.rdbms.datasource.dbcp.managed.PoolableManagedConnectionFactory

All Implemented Interfaces:

PoolableObjectFactory

public class PoolableManagedConnectionFactory
extends PoolableConnectionFactory

A PoolableConnectionFactory that creates PoolableManagedConnections.

Version:

$Revision$ $Date$

Field Summary

Fields inherited from class org.datanucleus.store.rdbms.datasource.dbcp.PoolableConnectionFactory

_config, _connectionInitSqls, _connFactory, _defaultAutoCommit, _defaultCatalog, _defaultReadOnly, _defaultTransactionIsolation, _pool, _stmtPoolFactory, _validationQuery, _validationQueryTimeout

Constructor Summary

Constructors

Constructor and Description
PoolableManagedConnectionFactory(XAConnectionFactory connFactory, ObjectPool pool, KeyedObjectPoolFactory stmtPoolFactory, String validationQuery, boolean defaultReadOnly, boolean defaultAutoCommit) Create a PoolableManagedConnectionFactory and attach it to a connection pool.
PoolableManagedConnectionFactory(XAConnectionFactory connFactory, ObjectPool pool, KeyedObjectPoolFactory stmtPoolFactory, String validationQuery, int validationQueryTimeout, Collection connectionInitSqls, Boolean defaultReadOnly, boolean defaultAutoCommit, int defaultTransactionIsolation, String defaultCatalog, AbandonedConfig config) Create a PoolableManagedConnectionFactory and attach it to a connection pool.

Method Summary

Modifier and Type	Method and Description
Object	makeObject() Uses the configured XAConnectionFactory to create a PoolableManagedConnection.

Methods inherited from class org.datanucleus.store.rdbms.datasource.dbcp.PoolableConnectionFactory

activateObject, destroyObject, getPool, initializeConnection, passivateObject, setConnectionFactory, setConnectionInitSql, setDefaultAutoCommit, setDefaultCatalog, setDefaultReadOnly, setDefaultTransactionIsolation, setPool, setStatementPoolFactory, setValidationQuery, setValidationQueryTimeout, validateConnection, validateObject

Methods inherited from class java.lang.Object

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

Constructor Detail

PoolableManagedConnectionFactory

public PoolableManagedConnectionFactory(XAConnectionFactory connFactory,
                                        ObjectPool pool,
                                        KeyedObjectPoolFactory stmtPoolFactory,
                                        String validationQuery,
                                        boolean defaultReadOnly,
                                        boolean defaultAutoCommit)

Create a PoolableManagedConnectionFactory and attach it to a connection pool.

Parameters:

connFactory - XAConnectionFactory

pool - connection pool

stmtPoolFactory - the KeyedObjectPoolFactory to use to create KeyedObjectPools for pooling PreparedStatements, or null to disable PreparedStatement pooling

validationQuery - a query to use to validate Connections. Should return at least one row. Using null turns off validation.

defaultReadOnly - the default "read only" setting for borrowed Connections

defaultAutoCommit - the default "auto commit" setting for returned Connections

PoolableManagedConnectionFactory

public PoolableManagedConnectionFactory(XAConnectionFactory connFactory,
                                        ObjectPool pool,
                                        KeyedObjectPoolFactory stmtPoolFactory,
                                        String validationQuery,
                                        int validationQueryTimeout,
                                        Collection connectionInitSqls,
                                        Boolean defaultReadOnly,
                                        boolean defaultAutoCommit,
                                        int defaultTransactionIsolation,
                                        String defaultCatalog,
                                        AbandonedConfig config)

Create a PoolableManagedConnectionFactory and attach it to a connection pool.

Parameters:

connFactory - XAConnectionFactory

pool - connection pool

stmtPoolFactory - the KeyedObjectPoolFactory to use to create KeyedObjectPools for pooling PreparedStatements, or null to disable PreparedStatement pooling

validationQuery - a query to use to validate Connections. Should return at least one row. Using null turns off validation.

validationQueryTimeout - the number of seconds that validation queries will wait for database response before failing. Use a value less than or equal to 0 for no timeout.

connectionInitSqls - a Collection of SQL statements to initialize Connections. Using null turns off initialization.

defaultReadOnly - the default "read only" setting for borrowed Connections

defaultAutoCommit - the default "auto commit" setting for returned Connections

defaultTransactionIsolation - the default "Transaction Isolation" setting for returned Connections

defaultCatalog - the default "catalog" setting for returned Connections

config - the AbandonedConfig if tracing SQL objects

Method Detail

makeObject

public Object makeObject()
                  throws Exception

Uses the configured XAConnectionFactory to create a PoolableManagedConnection. Throws IllegalStateException if the connection factory returns null. Also initializes the connection using configured initialization sql (if provided) and sets up a prepared statement pool associated with the PoolableManagedConnection if statement pooling is enabled.

Specified by:

makeObject in interface PoolableObjectFactory

Overrides:

makeObject in class PoolableConnectionFactory

Returns:

an instance that can be served by the pool.

Throws:

Exception - if there is a problem creating a new instance, this will be propagated to the code requesting an object.