com.hardcode.gdbms.engine.data.db
Class DBDataSourceSupport

java.lang.Object
  com.hardcode.gdbms.engine.data.db.DBDataSourceSupport

Direct Known Subclasses:

SpatialDBDataSourceSupport

public class DBDataSourceSupport
extends java.lang.Object

Field Summary

protected java.sql.Connection	con
protected DBSource	def
protected DBDriver	driver
protected DataSource	ds
protected OpenCloseCounter	ocCounter

Constructor Summary

DBDataSourceSupport(DataSource ds, DBSource def, DBDriver driver)

Method Summary

java.lang.String	check(Field field, Value value)
void	execute(java.lang.String sql)
java.sql.Connection	getConnection() Get's a connection to the driver
Metadata	getDataSourceMetadata()
DBDriver	getDriver()
DriverMetadata	getDriverMetadata()
Value	getOriginalFieldValue(long rowIndex, int fieldId)
long	getOriginalRowCount()
int	getPKCardinality()
java.lang.String	getPKName(int fieldId)
java.lang.String[]	getPKNames()
ValueCollection	getPKValue(long rowIndex) Gets the value of the primary key just before the beginTrans call
int[]	getPrimaryKeys()
void	saveData(DataSource dataSource)
boolean	start()
void	stop()

Methods inherited from class java.lang.Object

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

Field Detail

ocCounter

protected OpenCloseCounter ocCounter

driver

protected DBDriver driver

con

protected java.sql.Connection con

def

protected DBSource def

ds

protected DataSource ds

Constructor Detail

DBDataSourceSupport

public DBDataSourceSupport(DataSource ds,
                           DBSource def,
                           DBDriver driver)

Method Detail

start

public boolean start()
              throws DriverException

Throws:

DriverException

stop

public void stop()
          throws DriverException

Throws:

DriverException

getConnection

public java.sql.Connection getConnection()
                                  throws java.sql.SQLException

Get's a connection to the driver

Returns:

Connection

Throws:

java.sql.SQLException - if the connection cannot be established

getOriginalFieldValue

public Value getOriginalFieldValue(long rowIndex,
                                   int fieldId)
                            throws DriverException

Throws:

DriverException

getOriginalRowCount

public long getOriginalRowCount()
                         throws DriverException

Throws:

DriverException

execute

public void execute(java.lang.String sql)
             throws java.sql.SQLException

Throws:

java.sql.SQLException

getPKValue

public ValueCollection getPKValue(long rowIndex)
                           throws DriverException

Gets the value of the primary key just before the beginTrans call

Parameters:

rowIndex - Index of the row

Returns:

Throws:

DriverException

getPrimaryKeys

public int[] getPrimaryKeys()
                     throws DriverException

Throws:

DriverException

See Also:

com.hardcode.gdbms.engine.data.DataSource#getPrimaryKeys()

getPKName

public java.lang.String getPKName(int fieldId)
                           throws DriverException

Throws:

DriverException

getPKCardinality

public int getPKCardinality()
                     throws DriverException

Throws:

DriverException

getPKNames

public java.lang.String[] getPKNames()
                              throws DriverException

Throws:

DriverException

getDataSourceMetadata

public Metadata getDataSourceMetadata()
                               throws DriverException

Throws:

DriverException

saveData

public void saveData(DataSource dataSource)
              throws DriverException

Throws:

DriverException

getDriverMetadata

public DriverMetadata getDriverMetadata()
                                 throws DriverException

Throws:

DriverException

check

public java.lang.String check(Field field,
                              Value value)
                       throws DriverException

Throws:

DriverException

getDriver

public DBDriver getDriver()