/*
This file belongs to the Servoy development and deployment environment, Copyright (C) 1997-2010 Servoy BV
This program is free software; you can redistribute it and/or modify it under
the terms of the GNU Affero General Public License as published by the Free
Software Foundation; either version 3 of the License, or (at your option) any
later version.
This program is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License along
with this program; if not, see http://www.gnu.org/licenses or write to the Free
Software Foundation,Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301
*/
package com.servoy.j2db.persistence;
public interface IDataProvider
{
public String getDataProviderID();//get the id of the provider
/**
* Leaves in dataprovider tree can be columns
*
* @return a column or column and relation, null if no database column depenency
*/
public ColumnWrapper getColumnWrapper();
public int getLength();//max length the provider can hold, especially used by columns varchars, -1 or 0 means is undefined
public boolean isEditable();
public int getFlags();
/**
* returns a in the Column class defined type,return -1 if unkown or can be anything (happpens only in script calcs for now)
*/
public int getDataProviderType();
}