Android Open Source - Is-It-Here-Yet Prediction List Proxy

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License

The source code is released under:

GNU General Public License

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Java Source Code

/**
 * Is It Here Yet? is a simple Android application that reads the
 * NextBus public XML feed and displays the arrival times for
 * transit vehicles for a chosen stop. //w ww.  j  a va  2  s . c o m
 * Copyright (C) 2011 Matthew Lam
 *
 * Is It Here Yet? 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.
 *
 * Is It Here Yet? 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 Is It Here Yet?.  If not, see <http://www.gnu.org/licenses/>.
 */

package com.sudfiwe.iihy.data.predict;

import java.util.Hashtable;
import com.sudfiwe.iihy.data.stop.Stop;
import com.sudfiwe.iihy.io.DBFacade;
import com.sudfiwe.iihy.io.DBResult;
import com.sudfiwe.iihy.uiinterface.IPredictionDirection;
import com.sudfiwe.iihy.uiinterface.IPredictionItem;
import com.sudfiwe.iihy.util.Filter;
import com.sudfiwe.iihy.util.Filter.FilterType;

public class PredictionListProxy implements IPredictionList {

  private Stop stop;
  private PredictionList realList;
  
  public PredictionListProxy(Stop pStop) {
    
    stop=pStop;
  }
  
  public void generateList(String dirTag) {
    
    if (realList==null) {
      
      regenerateList(dirTag);
    }
  }
  
  public void regenerateList(String dirTag) {
    
    Filter f=new Filter();
    f.addEntry(FilterType.PREDICT_AGENCYTAG,
        stop.getAgencyTag());
    f.addEntry(FilterType.PREDICT_ROUTETAG,
        stop.getRouteTag());
    //f.addEntry(FilterType.PREDICT_DIRTAG,
    //    dirTag);
    f.addEntry(FilterType.PREDICT_STOPTAG,
        stop.getTag());
    
    DBResult<PredictionList> res=
      (DBResult<PredictionList>)
      DBFacade.getInstance().getList(
          PredictionList.class,f);
    
    realList=new PredictionList();
    
    if (res.getSuccess()) {
      
      realList=res.getObject();
    } else {
      
      realList=new PredictionList();
    }
  }
  
  public Hashtable<IPredictionDirection, IPredictionItem[]> getList() {
    
    return realList.getList();
  }
  
  public String getMessage() {
    
    return realList.getMessage();
  }
}

Java Source Code List