| java.lang.Object
 org.xorm.datastore.sql.PooledConnection
| PooledConnection | | class PooledConnection implements Connection(Code) | | A wrapper around a DB connection that provides the concept of being
logically closed, while keeping the db connection alive. This allows
the connection to be reused without having to re-establish a db connection.
author:
Scott Bendar
version:
$Revision: 1.4 $ |
| Method Summary | |
| protected void | checkException(SQLException sqe)
Called when an Exception is thrown by one of the wrapped JDBC Connection
methods. | | public void | clearReceivedException()
| | public void | clearWarnings()
| | public void | close()
Performs a logical close on the connection. | | protected void | closeConnection()
Closes the underlying db connection. | | public void | commit()
| | public Statement | createStatement()
| | public Statement | createStatement(int resultSetType, int resultSetConcurrency)
| | public Statement | createStatement(int resultSetType, int resultSetConcurrency, int resultSetHoldability)
| | public boolean | getAutoCommit()
| | public String | getCatalog()
| | public int | getHoldability()
| | public long | getLastUsedTime()
Return time in milliseconds when the connection was last used. | | public DatabaseMetaData | getMetaData()
| | public int | getTransactionIsolation()
| | public Map | getTypeMap()
| | public SQLWarning | getWarnings()
| | public boolean | hasReceivedException()
Returns true if any of the wrapped connections threw an exception
while the connection was in use. | | public boolean | isClosed()
Returns the state of this logical wrapper, not of the underlying
db connection. | | protected boolean | isConnectionClosed()
| | public boolean | isReadOnly()
| | public String | nativeSQL(String sql)
| | public CallableStatement | prepareCall(String sql)
| | public CallableStatement | prepareCall(String sql, int resultSetType, int resultSetConcurrency)
| | public CallableStatement | prepareCall(String sql, int resultSetType, int resultSetConcurrency, int resultSetHoldability)
| | public PreparedStatement | prepareStatement(String sql)
| | public PreparedStatement | prepareStatement(String sql, int autoGeneratedKeys)
| | public PreparedStatement | prepareStatement(String sql, int[] columnIndexes)
| | public PreparedStatement | prepareStatement(String sql, int resultSetType, int resultSetConcurrency)
| | public PreparedStatement | prepareStatement(String sql, int resultSetType, int resultSetConcurrency, int resultSetHoldability)
| | public PreparedStatement | prepareStatement(String sql, String[] columnNames)
| | public void | releaseSavepoint(Savepoint savepoint)
| | protected void | resetConnection()
Try to reset a connection back to the state it was in when it was
first created so when its reused, the user doesn't get a connection
left in some funky state by the previous user. | | public void | rollback()
| | public void | rollback(Savepoint savepoint)
| | public void | setAutoCommit(boolean autoCommit)
| | public void | setCatalog(String catalog)
| | protected void | setClosed(boolean c)
Sets the closed state. | | public void | setHoldability(int hold)
| | public void | setReadOnly(boolean ro)
| | public Savepoint | setSavepoint()
| | public Savepoint | setSavepoint(String name)
| | public void | setTransactionIsolation(int iso)
| | public void | setTypeMap(Map typeMap)
|
| autoCommit | | protected boolean autoCommit(Code) | | the current state of commit mode
|
| closed | | protected boolean closed(Code) | | flag indicates if connection has been logically closed or not
|
| defaultCatalog | | protected String defaultCatalog(Code) | | default catalog
|
| defaultIsolation | | protected int defaultIsolation(Code) | | default transaction isolation level
|
| defaultTypeMap | | protected Map defaultTypeMap(Code) | | default type map
|
| exceptionOccurred | | protected boolean exceptionOccurred(Code) | | flag that indicates if we received an exception from any of our
wrapped connction methods. This will force a connection test
before giving the connection to anyone else.
|
| lastUsed | | protected long lastUsed(Code) | | The time the connection was last used
|
| readOnly | | protected boolean readOnly(Code) | | the current state of read only mode
|
| PooledConnection | | public PooledConnection(PooledDataSource dataSource, Connection newConn) throws SQLException(Code) | | Creates a new connection wrapper around the passed base connection.
The wrapper intercepts the close call and performs a logical close
and returns the connection to the owning pool.
The other calls are passed through to the real connection object.
Parameters:
dataSource - the owning pooled data source
Parameters:
newConn - the actual db connection being wrapped |
| checkException | | protected void checkException(SQLException sqe) throws SQLException(Code) | | Called when an Exception is thrown by one of the wrapped JDBC Connection
methods. It logs that a connection was received which will force
the connection pool to recheck the connection before giving it to
someone else.
|
| clearReceivedException | | public void clearReceivedException()(Code) | | Clears the exception indicator
|
| close | | public void close() throws SQLException(Code) | | Performs a logical close on the connection. Any outstanding transaction
is rolled back and the connection properties are reset to their original
settings.
The connection is set to a closed state causing most methods to
throw an exception in case someone tries to use it after calling close.
Lastly, it tells its owner it is again available for use.
|
| closeConnection | | protected void closeConnection()(Code) | | Closes the underlying db connection. This is called by the owning
data source when it wants to get rid of the connection.
|
| createStatement | | public Statement createStatement(int resultSetType, int resultSetConcurrency, int resultSetHoldability) throws SQLException(Code) | | |
| getLastUsedTime | | public long getLastUsedTime()(Code) | | Return time in milliseconds when the connection was last used.
|
| hasReceivedException | | public boolean hasReceivedException()(Code) | | Returns true if any of the wrapped connections threw an exception
while the connection was in use.
|
| isClosed | | public boolean isClosed()(Code) | | Returns the state of this logical wrapper, not of the underlying
db connection.
|
| isConnectionClosed | | protected boolean isConnectionClosed() throws SQLException(Code) | | Tests if the underlying connection is closed or not
|
| resetConnection | | protected void resetConnection() throws SQLException(Code) | | Try to reset a connection back to the state it was in when it was
first created so when its reused, the user doesn't get a connection
left in some funky state by the previous user.
|
| setClosed | | protected void setClosed(boolean c)(Code) | | Sets the closed state. This is called by the owning pool when
its ready to return the connection to a caller.
|
| setTransactionIsolation | | public void setTransactionIsolation(int iso) throws SQLException(Code) | | |
|
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