pt.moredata.dao.core
Class AbstractWriter

java.lang.Object
  pt.moredata.dao.core.AbstractWriter

All Implemented Interfaces:

Writer

public abstract class AbstractWriter

extends java.lang.Object

implements Writer

Parcial implementation of the Writer interface. Company MoreData

Version:

$Revision: 1.5 $

Author:

pcarmo

Field Summary

protected DAOFieldsInfo	_fieldsInfo DAOFieldsInfo object with information about DAO columns and tables.
protected WriterInformation	_info Aditional information to build the SQL command.
protected RecordSet	_recordSet DAO RecordSet.

Constructor Summary

AbstractWriter(DAOFieldsInfo fieldsInfo, RecordSet recordSet)
Creates a new instance of AbstractWriter

Method Summary

void	setDAOFieldsInfo(DAOFieldsInfo fieldsInfo) Set the DAOFieldsInfo object with information about the columns of the RecordSet.
void	setRecordSet(RecordSet recordSet) Set the RecordSet that contains the data to be written to the repository.
protected abstract void	write() Read all data from one table of the RecordSet and write it to the repository.
void	write(WriterInformation info) Read all data from one table of the RecordSet and write it to the repository.

Methods inherited from class java.lang.Object

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

Methods inherited from interface pt.moredata.dao.Writer

commit, delete, getAutoCommit, insert, rollback, setAutoCommit, update

Field Detail

_info

protected WriterInformation _info

Aditional information to build the SQL command.

_fieldsInfo

protected DAOFieldsInfo _fieldsInfo

DAOFieldsInfo object with information about DAO columns and tables.

_recordSet

protected RecordSet _recordSet

DAO RecordSet.

Constructor Detail

AbstractWriter

public AbstractWriter(DAOFieldsInfo fieldsInfo,
                      RecordSet recordSet)

Creates a new instance of AbstractWriter

Parameters:

fieldsInfo - The DAO fields information object.

recordSet - The DAO RecordSet object witch contains the DAO data.

Method Detail

write

protected abstract void write()
                       throws WriterException

Read all data from one table of the RecordSet and write it to the repository. Only the rows of the recordSet marked as modified are written to the repository. Tha action take on each row depends on the state of the row, if the row is new, it is inserted in the repository. If the row is change in the DAO is data is updated in the repository. If the data was deleted in the DAO it is deleted from the repository.

Throws:

WriterException - If an error occur will writing data to the repository.

setDAOFieldsInfo

public void setDAOFieldsInfo(DAOFieldsInfo fieldsInfo)

Set the DAOFieldsInfo object with information about the columns of the RecordSet.

Specified by:

setDAOFieldsInfo in interface Writer

Parameters:

fieldsInfo - The DAOFieldInfo object.

setRecordSet

public void setRecordSet(RecordSet recordSet)

Set the RecordSet that contains the data to be written to the repository.

Specified by:

setRecordSet in interface Writer

Parameters:

recordSet - The RecorSet object with information to be written.

write

public void write(WriterInformation info)
           throws WriterException

Read all data from one table of the RecordSet and write it to the repository. Only the rows of the recordSet marked as modified are written to the repository. Tha action take on each row depends on the state of the row, if the row is new, it is inserted in the repository. If the row is change in the DAO is data is updated in the repository. If the data was deleted in the DAO it is deleted from the repository.

Specified by:

write in interface Writer

Parameters:

info - Adicional information to help writing to the Repository

Throws:

WriteException - If an error occur will writing data to the repository.

WriterException - If an error occur will writing data to the repository.