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com.lutris.appserver.server.sql
Interface DatabaseManager  

All Known Implementing Classes:

StandardDatabaseManager

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public interface DatabaseManager

The database management object interface. This class implementing this interface manages the database connections for one application.

Version:

$Revision: 1.13.12.1 $

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Field Summary
static boolean	debug           Flag to enable debug logging of queries and transactions.

 

Method Summary
DBConnection	allocateConnection()           Allocate a connection to the default logical database.
DBConnection	allocateConnection(java.lang.String dbName)           Allocate a connection to the specified logic database.
ObjectId	allocateObjectId()           Allocate an object id from the specified logical database.
ObjectId	allocateObjectId(java.lang.String dbName)           Allocate an object id from the specified logical database.
DBQuery	createQuery()           Create a query object for the default logical database.
DBQuery	createQuery(java.lang.String dbName)           Create a query object for the specified logical database.
DBTransaction	createTransaction()           Create a transaction object for the default logical database.
DBTransaction	createTransaction(java.lang.String dbName)           Create a transaction object for the specified logical database.
int	getActiveConnectionCount(java.lang.String dbName)           Returns the number of currently active connections for the supplied logical database name.
java.lang.String[]	getLogicalDatabaseNames()           Returns the list of managed logical databases.
int	getMaxConnectionCount(java.lang.String dbName)           Returns the maximum number of concurent connections that existed at any time since this object was created, or resetMaxConnectionCount() was called.
java.util.Date	getMaxConnectionCountDate(java.lang.String dbName)           Returns the time when the maximum refered to by maxConnectionCount() occured.
long	getRequestCount(java.lang.String dbName)           Returns the number of requests made to the database since startup time.
java.lang.String	getType(java.lang.String dbName)           Returns a description of the logical database type.
void	resetMaxConnectionCount(java.lang.String dbName)           Reset the maximum connection count.
void	setDefaultDatabase(java.lang.String dbName)           Set the default logical database.
void	shutdown()           Shutdown the database manager.

 

Field Detail

debug

public static final boolean debug

Flag to enable debug logging of queries and transactions.

See Also:

Constant Field Values

Method Detail

allocateConnection

public DBConnection allocateConnection(java.lang.String dbName)
                                throws DatabaseManagerException,
                                       java.sql.SQLException

Allocate a connection to the specified logic database. The connection should be returned to the pool by calling its release() function. A thread will wait if no connections are available. Interupted exceptions are converted to errors.

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allocateConnection

public DBConnection allocateConnection()
                                throws DatabaseManagerException,
                                       java.sql.SQLException

Allocate a connection to the default logical database. The connection should be returned to the pool by calling its release() function. A thread will wait if no connections are available. Interupted exceptions are converted to errors.

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allocateObjectId

public ObjectId allocateObjectId(java.lang.String dbName)
                          throws DatabaseManagerException,
                                 ObjectIdException

Allocate an object id from the specified logical database.

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allocateObjectId

public ObjectId allocateObjectId()
                          throws DatabaseManagerException,
                                 ObjectIdException

Allocate an object id from the specified logical database.

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createTransaction

public DBTransaction createTransaction(java.lang.String dbName)
                                throws DatabaseManagerException,
                                       java.sql.SQLException

Create a transaction object for the specified logical database.

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createTransaction

public DBTransaction createTransaction()
                                throws DatabaseManagerException,
                                       java.sql.SQLException

Create a transaction object for the default logical database.

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createQuery

public DBQuery createQuery(java.lang.String dbName)
                    throws DatabaseManagerException,
                           java.sql.SQLException

Create a query object for the specified logical database.

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createQuery

public DBQuery createQuery()
                    throws DatabaseManagerException,
                           java.sql.SQLException

Create a query object for the default logical database.

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setDefaultDatabase

public void setDefaultDatabase(java.lang.String dbName)
                        throws DatabaseManagerException

Set the default logical database. This should be used with caution, but it makes allocating connections easier.

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shutdown

public void shutdown()

Shutdown the database manager. All logical databases will be shutdown and all connection closed.

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getLogicalDatabaseNames

public java.lang.String[] getLogicalDatabaseNames()

Returns the list of managed logical databases.

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getType

public java.lang.String getType(java.lang.String dbName)
                         throws DatabaseManagerException

Returns a description of the logical database type.

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getRequestCount

public long getRequestCount(java.lang.String dbName)
                     throws DatabaseManagerException

Returns the number of requests made to the database since startup time.

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getActiveConnectionCount

public int getActiveConnectionCount(java.lang.String dbName)
                             throws DatabaseManagerException

Returns the number of currently active connections for the supplied logical database name. If not implemented, then -1 is returned.

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getMaxConnectionCount

public int getMaxConnectionCount(java.lang.String dbName)
                          throws DatabaseManagerException

Returns the maximum number of concurent connections that existed at any time since this object was created, or resetMaxConnectionCount() was called. This is a historical highwater mark. If not implemented, then -1 is returned.

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getMaxConnectionCountDate

public java.util.Date getMaxConnectionCountDate(java.lang.String dbName)
                                         throws DatabaseManagerException

Returns the time when the maximum refered to by maxConnectionCount() occured. If not implemented, then null is returned.

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resetMaxConnectionCount

public void resetMaxConnectionCount(java.lang.String dbName)
                             throws DatabaseManagerException

Reset the maximum connection count. See maxConnectionCount(). The highwater mark should be reset to the current number of connections.

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Overview  Package   Class  Use  Deprecated  Index
Home >> All >> com >> lutris >> appserver >> server >> [ sql overview ]	PREV CLASS  NEXT CLASS
SUMMARY:  JAVADOC |  SOURCE |  DOWNLOAD | NESTED | FIELD | CONSTR | METHOD	DETAIL: FIELD | CONSTR | METHOD

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