org.objectweb.jorm.interp.genclass.rdb.lib
Class RdbGenClassBinding

java.lang.Object
  |
  +--org.objectweb.jorm.interp.genclass.lib.GenClassBinding
        |
        +--org.objectweb.jorm.interp.genclass.rdb.lib.RdbGenClassBinding

All Implemented Interfaces:

PBinding, PBindingCtrl

public class RdbGenClassBinding

extends GenClassBinding

This class provides the implementation of PBinding for RDBMS.

Author:

P. D?chamboux

Fields inherited from class org.objectweb.jorm.interp.genclass.lib.GenClassBinding

genClassMapping, indexes, pName, status

Fields inherited from interface org.objectweb.jorm.api.PBinding

ACTION_BIND, ACTION_EXIST, ACTION_EXPORT, ACTION_READ, ACTION_UNBIND, ACTION_UNEXPORT, ACTION_WRITE, LIFECYCLE_ACTIVEFORIO, LIFECYCLE_DELTOWRITE, LIFECYCLE_ERROR, LIFECYCLE_NEWTOWRITE, LIFECYCLE_NOTBOUND

Constructor Summary

RdbGenClassBinding()
It constructs a RdbGenClassBinding.

RdbGenClassBinding(GenClassMapping mapping)
It constructs a RdbGenClassBinding.

Method Summary

boolean	exist(java.lang.Object conn) It verifies if the DSI attached to this binding exists within the DS.
void	read(java.lang.Object conn, PAccessor pa) It reads the data store instance designated by the PName of this binding and transfers each attribute value to the accessor object.
void	write(java.lang.Object conn, PAccessor pa) It transfers each attribute value taken from the PAccessor object to the data store instance designated by the PName associated with this binding.

Methods inherited from class org.objectweb.jorm.interp.genclass.lib.GenClassBinding

bind, export, export, getPClassMapping, getPName, getStatus, init, setPName, setStatus, unbind, unexport

Methods inherited from class java.lang.Object

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

Constructor Detail

RdbGenClassBinding

public RdbGenClassBinding()

It constructs a RdbGenClassBinding.

RdbGenClassBinding

public RdbGenClassBinding(GenClassMapping mapping)
                   throws PExceptionProtocol

It constructs a RdbGenClassBinding.

Method Detail

exist

public boolean exist(java.lang.Object conn)
              throws PException

It verifies if the DSI attached to this binding exists within the DS.

Parameters:

conn - The connection that can be used to refer to the DS.

Returns:

It returns true if the DSI exists.

Throws:

PExceptionIO - It is raised when a problem occured while accessing to the DS.

PExceptionProtocol - It is raised when it is called with a state different from the following ones: LIFECYCLE_ACTIVEFORIO LIFECYCLE_NOACC

read

public void read(java.lang.Object conn,
                 PAccessor pa)
          throws PException

It reads the data store instance designated by the PName of this binding and transfers each attribute value to the accessor object.

Parameters:

conn - The connection that can be used to refer to the DS.

Throws:

PExceptionIO - It is raised when a problem occured while accessing to the DS.

PExceptionNaming - It is raised when there is a problem for the associated binder to manage this PName.

PExceptionProtocol - It is raised when it is called with a state different from the following ones: LIFECYCLE_ACTIVEFORIO

write

public void write(java.lang.Object conn,
                  PAccessor pa)
           throws PException

It transfers each attribute value taken from the PAccessor object to the data store instance designated by the PName associated with this binding.

Parameters:

conn - The connection that can be used to refer to the DS.

Throws:

e1 - if the state of the binding does not allow writing to be completed (no valid name for example) e2 if the pc parameter does not allow acces to the data store

PExceptionIO - It is raised when a problem occured while accessing to the DS.

PExceptionProtocol - It is raised when it is called with a state different from the following ones: LIFECYCLE_ACTIVEFORIO LIFECYCLE_NEWTOWRITE LIFECYCLE_DELTOWRITE LIFECYCLE_DELTOWRITENOACC