JDBCConnectionPool (vaadin-all 7.7.46 API)

All Superinterfaces:

Serializable

All Known Implementing Classes:

J2EEConnectionPool, SimpleJDBCConnectionPool
```
public interface JDBCConnectionPool
extends Serializable
```
Interface for implementing connection pools to be used with SQLContainer.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`destroy()`	Destroys the connection pool: close() is called an all the connections in the pool, whether available or reserved.
`void`	`releaseConnection(Connection conn)`	Releases a connection that was retrieved earlier.
`Connection`	`reserveConnection()`	Retrieves a connection.

- Method Detail
  - reserveConnection
```
Connection reserveConnection()
                      throws SQLException
```
    Retrieves a connection.
    
    Returns:
    
    a usable connection to the database
    
    Throws:
    
    SQLException
  - releaseConnection
```
void releaseConnection(Connection conn)
```
    Releases a connection that was retrieved earlier. Note that depending on implementation, the transaction possibly open in the connection may or may not be rolled back.
    
    Parameters:
    
    conn - Connection to be released
  - destroy
```
void destroy()
```
    Destroys the connection pool: close() is called an all the connections in the pool, whether available or reserved. This method was added to fix PostgreSQL -related issues with connections that were left hanging 'idle'.