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| java.lang.Object
 com.uwyn.rife.database.ConnectionPool
| ConnectionPool | | public class ConnectionPool (Code) | | This is a class designed for database connection pooling. By storing
connections, along with the thread that they are assigned to, thread-aware
operations can be performed safely, securely, and more efficiently.
author:
JR Boyens (jboyens[remove] at uwyn dot com)
author:
Geert Bevin (gbevin[remove] at uwyn dot com)
version:
$Revision: 3634 $
since:
1.0 |
| ConnectionPool | | ConnectionPool()(Code) | | Create a new ConnectionPool
since:
1.0 |
| cleanup | | public void cleanup() throws DatabaseException(Code) | | Cleans up all connections that have been reserved by this
datasource.
exception:
DatabaseException - when an error occured during theclearing of the pool
since:
1.0 |
| finalize | | protected void finalize() throws Throwable(Code) | | Ensures that the pool is cleared when this Datasource
is garbage collected.
exception:
Throwable - when an error occured during the clearing ofthe pool
since:
1.0 |
| getConnection | | DbConnection getConnection(Datasource datasource) throws DatabaseException(Code) | | Retrieve this thread's connection.
Connections are allocated from the pool and assigned to the
current calling thread. If the thread does not have a current
connection or the pool size is 0, then a new connection is created
and assigned to the calling thread.
Parameters:
datasource - the datasource to create the connection to
exception:
DatabaseException - when an error occurred retrieving orcreating the connection the created or retrieved DbConnection
since:
1.0 |
| getPoolsize | | int getPoolsize()(Code) | | Get the size of the connection pool
int the size of the connection pool
since:
1.0 |
| hasThreadConnection | | boolean hasThreadConnection(Thread thread)(Code) | | Check if a connection reserved for a specific thread.
Parameters:
thread - the Thread to check for a reserved connection true if the passed-in thread has a connection; false if not
since:
1.0 |
| isInitialized | | boolean isInitialized()(Code) | | Check if the connection pool is initialized
boolean true if initialized; false if not
since:
1.0 |
| preparePool | | void preparePool(Datasource datasource) throws DatabaseException(Code) | | Fill the pool with connections. Prepare the pool by filling it with
connections from the provided datasource
Parameters:
datasource - the Datasource to fill the pool withconnections from
exception:
DatabaseException - when an error occured during thepreparation of the pool
since:
1.0 |
| registerThreadConnection | | void registerThreadConnection(Thread thread, DbConnection connection)(Code) | | Remembers which connection has been reserved for a particular
thread. This makes sequential operations within the same
transaction in the same thread be executed on the same connection.
Otherwise, transaction deadlocks might appear.
Parameters:
thread - the Thread to which the connection should beregistered to
Parameters:
connection - the DbConnection that should beregistered to the thread
since:
1.0 |
| setPoolsize | | void setPoolsize(int poolsize)(Code) | | Set the size of the connection pool
Parameters:
poolsize - the new size of the pool
since:
1.0 |
| unregisterThreadConnection | | void unregisterThreadConnection(Thread thread)(Code) | | Removes the dedication of a connection for a specific thread.
Parameters:
thread - the Thread whose DbConnection shouldbe unregistered.
since:
1.0 |
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