org.w3c.tools.jdbc
Class JdbcConnection

java.lang.Object
  org.w3c.tools.jdbc.JdbcConnection

All Implemented Interfaces:

LRUAble

public class JdbcConnection
extends java.lang.Object
implements LRUAble

Field Summary

static boolean	debug
protected LRUAble	lru_next
protected LRUAble	lru_prev
static int	QUERY_TIMEOUT
protected long	querystamp
protected JdbcServer	server The server this connection is attached to.

Method Summary

void	close()
void	delete() Close (if necessary) and delete this connection.
java.sql.DatabaseMetaData	getMetaData()
LRUAble	getNext() LRUAble interface - Get previous item in the LRU list.
LRUAble	getPrev() LRUAble interface - Get next item in the LRU list.
long	getQueryStamp()
protected JdbcServer	getServer()
boolean	isClosed()
boolean	markUsed() Mark the connection used.
java.sql.ResultSet	performQuery(java.lang.String command)
int	performUpdate(java.lang.String command)
void	setNext(LRUAble next) LRUAble interface - Set the next item for this server.
void	setPrev(LRUAble prev) LRUAble interface - Set the previous item for this server.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

debug

public static final boolean debug

See Also:

Constant Field Values

QUERY_TIMEOUT

public static final int QUERY_TIMEOUT

See Also:

Constant Field Values

querystamp

protected long querystamp

lru_next

protected LRUAble lru_next

lru_prev

protected LRUAble lru_prev

server

protected JdbcServer server

The server this connection is attached to.

Method Detail

getNext

public LRUAble getNext()

LRUAble interface - Get previous item in the LRU list.

Specified by:

getNext in interface LRUAble

Returns:

The previous item, or null.

getPrev

public LRUAble getPrev()

LRUAble interface - Get next item in the LRU list.

Specified by:

getPrev in interface LRUAble

Returns:

The next item, or null.

setNext

public void setNext(LRUAble next)

LRUAble interface - Set the next item for this server.

Specified by:

setNext in interface LRUAble

setPrev

public void setPrev(LRUAble prev)

LRUAble interface - Set the previous item for this server.

Specified by:

setPrev in interface LRUAble

getServer

protected final JdbcServer getServer()

markUsed

public boolean markUsed()

Mark the connection used.

Returns:

true if the connection is usable, false otherwise.

performQuery

public java.sql.ResultSet performQuery(java.lang.String command)
                                throws java.sql.SQLException

Throws:

java.sql.SQLException

performUpdate

public int performUpdate(java.lang.String command)
                  throws java.sql.SQLException

Throws:

java.sql.SQLException

getQueryStamp

public long getQueryStamp()

getMetaData

public java.sql.DatabaseMetaData getMetaData()
                                      throws java.sql.SQLException

Throws:

java.sql.SQLException

delete

public void delete()

Close (if necessary) and delete this connection.

close

public void close()

isClosed

public boolean isClosed()