com.ziclix.python.sql

Class PyConnection

public class PyConnection extends PyObject implements ClassDictInit

A connection to the database.

Version: $Revision: 2414 $

Author: brian zimmer last revised by $Author: bzimmer $

Field Summary
static PyClass__class__
Field __class__
Constructor Summary
PyConnection(Connection connection)
Create a PyConnection with the open connection.
Method Summary
static voidclassDictInit(PyObject dict)
Method classDictInit
voidclose()
Close the connection now (rather than whenever __del__ is called).
voidcommit()
Commit any pending transaction to the database.
PyCursorcursor()
Return a new Cursor Object using the connection.
PyCursorcursor(boolean dynamicFetch)
Return a new Cursor Object using the connection.
PyCursorcursor(boolean dynamicFetch, PyObject rsType, PyObject rsConcur)
Return a new Cursor Object using the connection.
PyObjectnativesql(PyObject nativeSQL)
Converts the given SQL statement into the system's native SQL grammar.
voidrollback()
This method is optional since not all databases provide transaction support.

In case a database does provide transactions this method causes the database to roll back to the start of any pending transaction.

StringtoString()
Produces a string representation of the object.
PyObject__findattr__(String name)
Finds the attribute.
void__setattr__(String name, PyObject value)
Sets the attribute.

Field Detail

__class__

public static PyClass __class__
Field __class__

Constructor Detail

PyConnection

public PyConnection(Connection connection)
Create a PyConnection with the open connection.

Parameters: connection

Throws: SQLException

Method Detail

classDictInit

public static void classDictInit(PyObject dict)
Method classDictInit

Parameters: dict

close

public void close()
Close the connection now (rather than whenever __del__ is called). The connection will be unusable from this point forward; an Error (or subclass) exception will be raised if any operation is attempted with the connection. The same applies to all cursor objects trying to use the connection.

commit

public void commit()
Commit any pending transaction to the database. Note that if the database supports an auto-commit feature, this must be initially off. An interface method may be provided to turn it back on.

Database modules that do not support transactions should implement this method with void functionality.

cursor

public PyCursor cursor()
Return a new Cursor Object using the connection. If the database does not provide a direct cursor concept, the module will have to emulate cursors using other means to the extent needed by this specification.

Returns: a new cursor using this connection

cursor

public PyCursor cursor(boolean dynamicFetch)
Return a new Cursor Object using the connection. If the database does not provide a direct cursor concept, the module will have to emulate cursors using other means to the extent needed by this specification.

Parameters: dynamicFetch if true, dynamically iterate the result

Returns: a new cursor using this connection

cursor

public PyCursor cursor(boolean dynamicFetch, PyObject rsType, PyObject rsConcur)
Return a new Cursor Object using the connection. If the database does not provide a direct cursor concept, the module will have to emulate cursors using other means to the extent needed by this specification.

Parameters: dynamicFetch if true, dynamically iterate the result rsType the type of the underlying ResultSet rsConcur the concurrency of the underlying ResultSet

Returns: a new cursor using this connection

nativesql

public PyObject nativesql(PyObject nativeSQL)
Converts the given SQL statement into the system's native SQL grammar. A driver may convert the JDBC sql grammar into its system's native SQL grammar prior to sending it; this method returns the native form of the statement that the driver would have sent.

Parameters: nativeSQL

Returns: the native form of this statement

rollback

public void rollback()
This method is optional since not all databases provide transaction support.

In case a database does provide transactions this method causes the database to roll back to the start of any pending transaction. Closing a connection without committing the changes first will cause an implicit rollback to be performed.

toString

public String toString()
Produces a string representation of the object.

Returns: string representation of the object.

__findattr__

public PyObject __findattr__(String name)
Finds the attribute.

Parameters: name the name of the attribute of interest

Returns: the value for the attribute of the specified name

__setattr__

public void __setattr__(String name, PyObject value)
Sets the attribute.

Parameters: name value