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Java Source Code / Java Documentation » Database ORM » db ojb » org.apache.ojb.broker.accesslayer 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


java.lang.Object
   org.apache.ojb.broker.accesslayer.ConnectionFactoryAbstractImpl
      org.apache.ojb.broker.accesslayer.ConnectionFactoryDBCPImpl

ConnectionFactoryDBCPImpl
public class ConnectionFactoryDBCPImpl extends ConnectionFactoryAbstractImpl (Code)
ConnectionFactory implementation using Commons DBCP and Commons Pool API to pool connections. Based on a proposal of Dirk Verbeek - Thanks.
author:
   Armin Waibel
version:
   $Id: ConnectionFactoryDBCPImpl.java,v 1.10.2.5 2005/10/09 23:51:01 arminw Exp $
See Also:    Commons Pool Website
See Also:    Commons DBCP Website

Inner Class :class ConPoolFactory extends DriverManagerConnectionFactory

Field Summary
final public static  StringPARAM_NAME_POOL_STATEMENTS
    
final public static  StringPARAM_NAME_STATEMENT_POOL_MAX_TOTAL
    
final public static  StringPARAM_NAME_UNWRAP_ALLOWED
    


Method Summary
public  ConnectioncheckOutJdbcConnection(JdbcConnectionDescriptor jcd)
    
protected  org.apache.commons.dbcp.ConnectionFactorycreateConnectionFactory(JdbcConnectionDescriptor jcd)
     Creates a DriverManager-based ConnectionFactory for creating the Connection instances to feed into the object pool of the specified jcd-alias.

NB! If you override this method to specify your own ConnectionFactory you must make sure that you follow OJB's lifecycle contract defined in the org.apache.ojb.broker.platforms.Platform API - ie that you call initializeJdbcConnection when a new Connection is created.

protected  ObjectPoolcreateConnectionPool(GenericObjectPool.Config config, AbandonedConfig ac)
    
protected  ObjectPoolcreateObjectPool(GenericObjectPool.Config config)
    
protected  PoolingDataSourcecreatePoolingDataSource(ObjectPool connectionPool)
    
protected  KeyedObjectPoolFactorycreateStatementPoolFactory(JdbcConnectionDescriptor jcd)
    
protected  DataSourcegetDataSource(JdbcConnectionDescriptor jcd)
     Returns the DBCP DataSource for the specified connection descriptor, after creating a new DataSource if needed.
public  voidreleaseAllResources()
     Closes all managed pools.
public  voidreleaseJdbcConnection(JdbcConnectionDescriptor jcd, Connection con)
    
protected  ObjectPoolsetupPool(JdbcConnectionDescriptor jcd)
     Returns a new ObjectPool for the specified connection descriptor.
protected  DataSourcewrapAsDataSource(JdbcConnectionDescriptor jcd, ObjectPool connectionPool)
     Wraps the specified object pool for connections as a DataSource.

Field Detail
PARAM_NAME_POOL_STATEMENTS
final public static String PARAM_NAME_POOL_STATEMENTS(Code)



PARAM_NAME_STATEMENT_POOL_MAX_TOTAL
final public static String PARAM_NAME_STATEMENT_POOL_MAX_TOTAL(Code)



PARAM_NAME_UNWRAP_ALLOWED
final public static String PARAM_NAME_UNWRAP_ALLOWED(Code)





Method Detail
checkOutJdbcConnection
public Connection checkOutJdbcConnection(JdbcConnectionDescriptor jcd) throws LookupException(Code)



createConnectionFactory
protected org.apache.commons.dbcp.ConnectionFactory createConnectionFactory(JdbcConnectionDescriptor jcd)(Code)
Creates a DriverManager-based ConnectionFactory for creating the Connection instances to feed into the object pool of the specified jcd-alias.

NB! If you override this method to specify your own ConnectionFactory you must make sure that you follow OJB's lifecycle contract defined in the org.apache.ojb.broker.platforms.Platform API - ie that you call initializeJdbcConnection when a new Connection is created. For convenience, use ConnectionFactoryAbstractImpl.initializeJdbcConnection instead of Platform call.

The above is automatically true if you re-use the inner class ConPoolFactory below and just override this method for additional user-defined "tweaks".
Parameters:
  jcd - the jdbc-connection-alias for which we are creating a ConnectionFactory a DriverManager-based ConnectionFactory that creates Connection instancesusing DriverManager, and that follows the lifecycle contract defined in OJBorg.apache.ojb.broker.platforms.Platform API.




createConnectionPool
protected ObjectPool createConnectionPool(GenericObjectPool.Config config, AbandonedConfig ac)(Code)



createObjectPool
protected ObjectPool createObjectPool(GenericObjectPool.Config config)(Code)
mkalen: Left for binary API-compatibility with OJB 1.0.3 (don't break users' factories) ConnectionFactoryDBCPImpl.createConnectionPool(org.apache.commons.pool.impl.GenericObjectPool.Config,org.apache.commons.dbcp.AbandonedConfig)



createPoolingDataSource
protected PoolingDataSource createPoolingDataSource(ObjectPool connectionPool)(Code)
mkalen: Left for binary API-compatibility with OJB 1.0.3 (don't break users' factories) ConnectionFactoryDBCPImpl.wrapAsDataSource(org.apache.ojb.broker.metadata.JdbcConnectionDescriptor,org.apache.commons.pool.ObjectPool)



createStatementPoolFactory
protected KeyedObjectPoolFactory createStatementPoolFactory(JdbcConnectionDescriptor jcd)(Code)



getDataSource
protected DataSource getDataSource(JdbcConnectionDescriptor jcd) throws LookupException(Code)
Returns the DBCP DataSource for the specified connection descriptor, after creating a new DataSource if needed.
Parameters:
  jcd - the descriptor for which to return a DataSource a DataSource, after creating a new pool if needed.Guaranteed to never be null.
throws:
  LookupException - if pool is not in cache and cannot be created



releaseAllResources
public void releaseAllResources()(Code)
Closes all managed pools.



releaseJdbcConnection
public void releaseJdbcConnection(JdbcConnectionDescriptor jcd, Connection con) throws LookupException(Code)



setupPool
protected ObjectPool setupPool(JdbcConnectionDescriptor jcd)(Code)
Returns a new ObjectPool for the specified connection descriptor. Override this method to setup your own pool.
Parameters:
  jcd - the connection descriptor for which to set up the pool a newly created object pool



wrapAsDataSource
protected DataSource wrapAsDataSource(JdbcConnectionDescriptor jcd, ObjectPool connectionPool)(Code)
Wraps the specified object pool for connections as a DataSource.
Parameters:
  jcd - the OJB connection descriptor for the pool to be wrapped
Parameters:
  connectionPool - the connection pool to be wrapped a DataSource attached to the connection pool.Connections will be wrapped using DBCP PoolGuard, that will not allowunwrapping unless the "accessToUnderlyingConnectionAllowed=true" configurationis specified.



Methods inherited from org.apache.ojb.broker.accesslayer.ConnectionFactoryAbstractImpl
abstract public Connection checkOutJdbcConnection(JdbcConnectionDescriptor jcd) throws LookupException(Code)(Java Doc)
protected String getDbURL(JdbcConnectionDescriptor jcd)(Code)(Java Doc)
protected String getJcdDescription(JdbcConnectionDescriptor jcd)(Code)(Java Doc)
protected Properties getJdbcProperties(JdbcConnectionDescriptor jcd, String user, String password)(Code)(Java Doc)
protected Properties getJdbcProperties(JdbcConnectionDescriptor jcd)(Code)(Java Doc)
protected void initializeJdbcConnection(Connection con, JdbcConnectionDescriptor jcd) throws LookupException(Code)(Java Doc)
public Connection lookupConnection(JdbcConnectionDescriptor jcd) throws LookupException(Code)(Java Doc)
protected Connection newConnectionFromDataSource(JdbcConnectionDescriptor jcd) throws LookupException(Code)(Java Doc)
protected Connection newConnectionFromDriverManager(JdbcConnectionDescriptor jcd) throws LookupException(Code)(Java Doc)
public synchronized void releaseAllResources()(Code)(Java Doc)
public void releaseConnection(JdbcConnectionDescriptor jcd, Connection con)(Code)(Java Doc)
abstract public void releaseJdbcConnection(JdbcConnectionDescriptor jcd, Connection con) throws LookupException(Code)(Java Doc)

Methods inherited from java.lang.Object
native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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