oracle.jdbc.pool
Class OraclePooledConnection

oracle.jdbc.pool.OraclePooledConnection

public class OraclePooledConnection

An OraclePooledConnection object is a connection object that provides hooks for connection pool management. A PooledConnection object represents a physical connection to a data source. It implements javax.sql.PooledConnection

Constructor Summary

OraclePooledConnection()

OraclePooledConnection(java.sql.Connection pc)
Create a Pooled Connection.

OraclePooledConnection(java.sql.Connection pc, boolean ac)
Create a Pooled Connection.

OraclePooledConnection(java.lang.String url)
Creates a PooledConnection.

OraclePooledConnection(java.lang.String url, java.lang.String user, java.lang.String passwd)
Creates a PooledConnection.

Method Summary

void	addConnectionEventListener(oracle.jdbc.pool.ConnectionEventListener cel) Add an event listener.
void	close() Close the physical connection.
java.sql.Connection	getConnection() Create an object handle for this physical connection.
java.sql.Connection	getLogicalHandle() Return the logical handle to the caller.
int	getStmtCacheSize() Return the size of Statement Cache.
void	removeConnectionEventListener(oracle.jdbc.pool.ConnectionEventListener cel) Remove an event listener.
void	setStmtCacheSize(int size) Set the statement cache size.
void	setStmtCacheSize(int size, boolean clearMetaData) Set the statement cache size.

Constructor Detail

OraclePooledConnection

public OraclePooledConnection()

OraclePooledConnection

public OraclePooledConnection(java.lang.String url)
                       throws java.sql.SQLException

Creates a PooledConnection.

Parameters:

URL - of the physical connection.

OraclePooledConnection

public OraclePooledConnection(java.lang.String url,
                              java.lang.String user,
                              java.lang.String passwd)
                       throws java.sql.SQLException

Creates a PooledConnection.

Parameters:

URL - of the physical connection.

User - Name

Password -

OraclePooledConnection

public OraclePooledConnection(java.sql.Connection pc)

Create a Pooled Connection.

Parameters:

The - corresponding physical connection.

OraclePooledConnection

public OraclePooledConnection(java.sql.Connection pc,
                              boolean ac)

Create a Pooled Connection.

Parameters:

The - corresponding physical connection

m_autoCommit - value

Method Detail

addConnectionEventListener

public void addConnectionEventListener(oracle.jdbc.pool.ConnectionEventListener cel)

Add an event listener.

Parameters:

The - listener to be added

close

public void close()
           throws java.sql.SQLException

Close the physical connection.

Throws:

java.sql.SQLException - if a database-access error occurs.

getConnection

public java.sql.Connection getConnection()
                                  throws java.sql.SQLException

Create an object handle for this physical connection. The object returned is a temporary handle used by application code to refer to a physical connection that is being pooled.

Returns:

a Connection object

Throws:

java.sql.SQLException - if a database-access error occurs.

getLogicalHandle

public java.sql.Connection getLogicalHandle()
                                     throws java.sql.SQLException

Return the logical handle to the caller. This logical handle refers to the physical connection that is pooled.

Returns:

a Connection object

Throws:

java.sql.SQLException -

removeConnectionEventListener

public void removeConnectionEventListener(oracle.jdbc.pool.ConnectionEventListener cel)

Remove an event listener.

Parameters:

The - listener to be removed.

setStmtCacheSize

public void setStmtCacheSize(int size)
                      throws java.sql.SQLException

Set the statement cache size. Default is 0. You cannot call this for logicalhandles obtained from PooledConnections.

If more than size cursors are already cached than they will be closed. By default the meta data of the cursor will be saved. Only data and the state will be cleared. You need to call this first to enable either type of Statement caching. When both types of Statement caching are enabled, the size is the total number of cursors cached for both the schemes together.

Parameters:

size - Size of the Cache

Throws:

java.sql.SQLException -

setStmtCacheSize

public void setStmtCacheSize(int size,
                             boolean clearMetaData)
                      throws java.sql.SQLException

Set the statement cache size. Default is 0. You cannot call this for logicalhandles obtained from PooledConnections.

If more than size cursors are already cached than they will be closed. By default, the meta data of the cursor will be saved. But if clearMetaData is set to true, even that will be cleared. You need to call this first to enable either type of Statement caching. When both types of Statement caching are enabled, the size is the total number of cursors cached for both the schemes together.

Parameters:

size - Size of the Cache

clearMetaData - Whether the state has to be cleared or not

Throws:

java.sql.SQLException -

getStmtCacheSize

public int getStmtCacheSize()

Return the size of Statement Cache.

Returns:

int Size of Statement Cache. If not set, the default 0 is returned.