org.openxava.tab.impl
Interface IDataReader

All Known Subinterfaces:

IEntityTabImpl, ITabProvider

All Known Implementing Classes:

EntityTab, JDBCTabProvider, JPATabProvider, TabProviderBase

public interface IDataReader

Read data by chunks.

Author:

Javier Paniza

Method Summary

int	getResultSize() Record (or object, or row) count of last consult.
DataChunk	nextChunk() Obtain the next data chunk.
void	reset() If you call this method the next time that you call nextChunk() you will obtain the first chunk and fresh data from db.

Method Detail

nextChunk

DataChunk nextChunk()
                    throws java.rmi.RemoteException

Obtain the next data chunk.

This method can be call from a TableModel to obtain data on demand.

Throws:

java.rmi.RemoteException

getResultSize

int getResultSize()
                  throws java.rmi.RemoteException

Record (or object, or row) count of last consult.

Throws:

java.rmi.RemoteException

reset

void reset()
           throws java.rmi.RemoteException

If you call this method the next time that you call nextChunk() you will obtain the first chunk and fresh data from db.

Throws:

java.rmi.RemoteException