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/*
* Backend.java
*
* Copyright (C) 2011 Tim Marston <tim@ed.am>
*
* This file is part of the Export Contacts program (hereafter referred
* to as "this program"). For more information, see
* http://ed.am/dev/android/export-contacts
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package am.ed.exportcontacts;
public interface Backend
{
/**
* Return the number of contacts that exist and that will be exported.
* @return number of existing contacts
*/
public int getNumContacts();
/**
* Return the next contact.
* @return a ContactData
*/
public boolean getNextContact( Exporter.ContactData contact );
}
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