framework
Class JADriver

java.lang.Object
  framework.JADriver

public abstract class JADriver
extends java.lang.Object

Constructor Summary

JADriver()

Method Summary

void	afterReadField(java.io.RandomAccessFile raf, JAField f, int fieldPos, int fieldsCount)
void	afterReadRecord(java.io.RandomAccessFile raf, JARecord fs)
void	afterWriteField(java.io.RandomAccessFile raf, JAField f, int fieldPos, int fieldsCount, boolean appending)
void	afterWriteRecord(java.io.RandomAccessFile raf, JARecord fs, boolean appending)
void	beforeReadField(java.io.RandomAccessFile raf, JAField f, int fieldPos, int fieldsCount)
void	beforeReadRecord(java.io.RandomAccessFile raf, JARecord f)
void	beforeWriteField(java.io.RandomAccessFile raf, JAField f, int fieldPos, int fieldsCount, boolean appending)
void	beforeWriteRecord(java.io.RandomAccessFile raf, JARecord fs, boolean appending)
void	eof(java.io.RandomAccessFile raf) Se invoca cuando llega el EOF del archivo.
abstract java.lang.Class[]	getDriverTypes()
int	getRecordExtraSize() Permite definir un size extra (ademas del que se especifica en cada campo) para cada registro.

Methods inherited from class java.lang.Object

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

Constructor Detail

JADriver

public JADriver()

Method Detail

getDriverTypes

public abstract java.lang.Class[] getDriverTypes()

beforeWriteField

public void beforeWriteField(java.io.RandomAccessFile raf,
                             JAField f,
                             int fieldPos,
                             int fieldsCount,
                             boolean appending)

afterWriteField

public void afterWriteField(java.io.RandomAccessFile raf,
                            JAField f,
                            int fieldPos,
                            int fieldsCount,
                            boolean appending)

beforeReadField

public void beforeReadField(java.io.RandomAccessFile raf,
                            JAField f,
                            int fieldPos,
                            int fieldsCount)

afterReadField

public void afterReadField(java.io.RandomAccessFile raf,
                           JAField f,
                           int fieldPos,
                           int fieldsCount)

beforeReadRecord

public void beforeReadRecord(java.io.RandomAccessFile raf,
                             JARecord f)

afterReadRecord

public void afterReadRecord(java.io.RandomAccessFile raf,
                            JARecord fs)

beforeWriteRecord

public void beforeWriteRecord(java.io.RandomAccessFile raf,
                              JARecord fs,
                              boolean appending)

afterWriteRecord

public void afterWriteRecord(java.io.RandomAccessFile raf,
                             JARecord fs,
                             boolean appending)

getRecordExtraSize

public int getRecordExtraSize()

Permite definir un size extra (ademas del que se especifica en cada campo)
para cada registro. Por ejemplo, si se leen registro de un archivo de texto
de DOS entonces este metodo podria retornar 1 para contemplar el caso del '\r'.

Returns:

- La cantidad de caracteres extra que deben adicionarse al size del registro.

eof

public void eof(java.io.RandomAccessFile raf)

Se invoca cuando llega el EOF del archivo.

Parameters:

raf - - Puntero al archivo.