/*
* Copyright (C) 2012, Katy Hilgenberg.
* Special acknowledgments to: Knowledge & Data Engineering Group, University of Kassel (http://www.kde.cs.uni-kassel.de).
* Contact: sdcf@cs.uni-kassel.de
*
* This file is part of the SDCFramework (Sensor Data Collection Framework) project.
*
* The SDCFramework is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* The SDCFramework 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with the SDCFramework. If not, see <http://www.gnu.org/licenses/>.
*/
package de.unikassel.android.sdcframework.persistence;
import de.unikassel.android.sdcframework.persistence.facade.DatabaseAdapter;
/**
* Implementation of the sample deletion database command.
*
* @author Katy Hilgenberg
*
*/
public class DeleteSamplesCommand
extends AbstractDatabaseCommand< Long >
{
/**
* The record count to delete from database
*/
private final long count;
/**
* Flag, indicating if samples with lower priority shall be deleted first
*/
private final boolean lowestPriorityFirst;
/**
* Constructor
*
* @param count
* the record count to delete from database
* @param lowestPriorityFirst
* flag if samples with lower priority shall be deleted first
*/
public DeleteSamplesCommand( long count, boolean lowestPriorityFirst )
{
super( false, DEFAULT_DB_OPEN_RETRY_COUNT << 1 );
this.count = count;
this.lowestPriorityFirst = lowestPriorityFirst;
}
/**
* Getter for the count of samples to delete
*
* @return the count of samples to delete
*/
public final long getCount()
{
return count;
}
/**
* Getter for the lowestPriorityFirst flag
*
* @return the lowestPriorityFirst flag
*/
public final boolean isLowestPriorityFirst()
{
return lowestPriorityFirst;
}
/*
* (non-Javadoc)
*
* @see de.unikassel.android.sdcframework.persistence.AbstractDatabaseCommand#
* applyCommand(de.unikassel.android.sdcframework.persistence.DatabaseAdapter)
*/
@Override
protected final Long applyCommand( DatabaseAdapter dbAdapter )
{
return dbAdapter.deleteSamplesOrdered( count, lowestPriorityFirst );
}
}