content: /**
   * 	Copyright (c) 2012 Philipp Giese
   * 
   * Permission is hereby granted, free of charge, to any person obtaining
   * a copy of this software and associated documentation files (the
   * "Software"), to deal in the Software without restriction, including
   * without limitation the rights to use, copy, modify, merge, publish,
   * distribute, sublicense, and/or sell copies of the Software, and to
   * permit persons to whom the Software is furnished to do so, subject to
   * the following conditions:
   * 
   * The above copyright notice and this permission notice shall be
   * included in all copies or substantial portions of the Software.
   * 
   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
   * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
   * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
   * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
   * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
   * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
   * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
   */
  package com.orm.androrm.migration;
  
  import android.content.Context;
  
  import com.orm.androrm.DatabaseBuilder;
  import com.orm.androrm.Filter;
  import com.orm.androrm.Model;
  
  public abstract class AndrormMigration<T extends Model> implements Migratable<T> {
  
  	protected String mAction;	
  	protected String mValue;
  	
  	public AndrormMigration(String value, String action) {
  		mValue = value;
  		mAction = action;
  	}
  	
  	private Filter getFilter(Class<T> model) {
  		Filter filter = new Filter();
  		
  		filter.is("mModel", DatabaseBuilder.getTableName(model))
  			  .is("mAction", mAction)
  			  .is("mValue", getValue(model));
  		
  		return filter;
  	}
  	
  	protected boolean isApplied(Class<T> model, Context context) {
  		Filter filter = getFilter(model);
  		
  		return !Migration.objects(context).filter(filter).isEmpty();
  	}
  	
  	public String getAction() {
  		return mAction;
  	}
  	
  	public abstract String getValue(Class<T> model);
  	
  }
  