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Java Source Code / Java Documentation » Database JDBC Connection Pool » Connection Pool DBCP » org.apache.commons.dbcp.cpdsadapter 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


java.lang.Object
   org.apache.commons.dbcp.cpdsadapter.PooledConnectionImpl

PooledConnectionImpl
class PooledConnectionImpl implements PooledConnection,KeyedPoolableObjectFactory(Code)
Implementation of PooledConnection that is returned by PooledConnectionDataSource.
author:
   John D. McNally
version:
   $Revision: 479137 $ $Date: 2006-11-25 08:51:48 -0700 (Sat, 25 Nov 2006) $

Inner Class :class PStmtKey

Field Summary
 booleanisClosed
     flag set to true, once close() is called.
protected  KeyedObjectPoolpstmtPool
     My pool of {*link PreparedStatement}s.

Constructor Summary
 PooledConnectionImpl(Connection connection, KeyedObjectPool pool)
     Wrap the real connection.

Method Summary
public  voidactivateObject(Object key, Object obj)
     My {*link KeyedPoolableObjectFactory} method for activating {*link PreparedStatement}s.
public  voidaddConnectionEventListener(ConnectionEventListener listener)
     Add an event listener.
public  voidclose()
     Closes the physical connection and marks this PooledConnection so that it may not be used to generate any more logical Connections.
protected  ObjectcreateKey(String sql, int resultSetType, int resultSetConcurrency)
     Create a {*link PooledConnectionImpl.PStmtKey} for the given arguments.
protected  ObjectcreateKey(String sql)
     Create a {*link PooledConnectionImpl.PStmtKey} for the given arguments.
public  voiddestroyObject(Object key, Object obj)
     My {*link KeyedPoolableObjectFactory} method for destroying {*link PreparedStatement}s.
protected  voidfinalize()
     Closes the physical connection and checks that the logical connection was closed as well.
public  ConnectiongetConnection()
     Returns a JDBC connection.
public  ObjectmakeObject(Object obj)
     My {*link KeyedPoolableObjectFactory} method for creating {*link PreparedStatement}s.
protected  StringnormalizeSQL(String sql)
     Normalize the given SQL statement, producing a cannonical form that is semantically equivalent to the original.
 voidnotifyListeners()
     sends a connectionClosed event.
public  voidpassivateObject(Object key, Object obj)
     My {*link KeyedPoolableObjectFactory} method for passivating {*link PreparedStatement}s.
 PreparedStatementprepareStatement(String sql)
     Create or obtain a {*link PreparedStatement} from my pool.
 PreparedStatementprepareStatement(String sql, int resultSetType, int resultSetConcurrency)
     Create or obtain a {*link PreparedStatement} from my pool.
public  voidremoveConnectionEventListener(ConnectionEventListener listener)
     Remove an event listener.
public  booleanvalidateObject(Object key, Object obj)
     My {*link KeyedPoolableObjectFactory} method for validating {*link PreparedStatement}s.

Field Detail
isClosed
boolean isClosed(Code)
flag set to true, once close() is called.



pstmtPool
protected KeyedObjectPool pstmtPool(Code)
My pool of {*link PreparedStatement}s.




Constructor Detail
PooledConnectionImpl
PooledConnectionImpl(Connection connection, KeyedObjectPool pool)(Code)
Wrap the real connection.




Method Detail
activateObject
public void activateObject(Object key, Object obj) throws Exception(Code)
My {*link KeyedPoolableObjectFactory} method for activating {*link PreparedStatement}s.
Parameters:
  key - ignored
Parameters:
  obj - ignored



addConnectionEventListener
public void addConnectionEventListener(ConnectionEventListener listener)(Code)
Add an event listener.



close
public void close() throws SQLException(Code)
Closes the physical connection and marks this PooledConnection so that it may not be used to generate any more logical Connections.
exception:
  SQLException - if an error occurs



createKey
protected Object createKey(String sql, int resultSetType, int resultSetConcurrency)(Code)
Create a {*link PooledConnectionImpl.PStmtKey} for the given arguments.



createKey
protected Object createKey(String sql)(Code)
Create a {*link PooledConnectionImpl.PStmtKey} for the given arguments.



destroyObject
public void destroyObject(Object key, Object obj) throws Exception(Code)
My {*link KeyedPoolableObjectFactory} method for destroying {*link PreparedStatement}s.
Parameters:
  key - ignored
Parameters:
  obj - the {*link PreparedStatement} to be destroyed.



finalize
protected void finalize() throws Throwable(Code)
Closes the physical connection and checks that the logical connection was closed as well.



getConnection
public Connection getConnection() throws SQLException(Code)
Returns a JDBC connection. The database connection.



makeObject
public Object makeObject(Object obj) throws Exception(Code)
My {*link KeyedPoolableObjectFactory} method for creating {*link PreparedStatement}s.
Parameters:
  obj - the key for the {*link PreparedStatement} to be created



normalizeSQL
protected String normalizeSQL(String sql)(Code)
Normalize the given SQL statement, producing a cannonical form that is semantically equivalent to the original.



notifyListeners
void notifyListeners()(Code)
sends a connectionClosed event.



passivateObject
public void passivateObject(Object key, Object obj) throws Exception(Code)
My {*link KeyedPoolableObjectFactory} method for passivating {*link PreparedStatement}s. Currently invokes {*link PreparedStatement#clearParameters}.
Parameters:
  key - ignored
Parameters:
  obj - a {*link PreparedStatement}



prepareStatement
PreparedStatement prepareStatement(String sql) throws SQLException(Code)
Create or obtain a {*link PreparedStatement} from my pool. a {*link PoolablePreparedStatement}



prepareStatement
PreparedStatement prepareStatement(String sql, int resultSetType, int resultSetConcurrency) throws SQLException(Code)
Create or obtain a {*link PreparedStatement} from my pool. a {*link PoolablePreparedStatement}



removeConnectionEventListener
public void removeConnectionEventListener(ConnectionEventListener listener)(Code)
Remove an event listener.



validateObject
public boolean validateObject(Object key, Object obj)(Code)
My {*link KeyedPoolableObjectFactory} method for validating {*link PreparedStatement}s.
Parameters:
  key - ignored
Parameters:
  obj - ignored true



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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