int.java

EOmodeler 读取数据库的方法

package edu.thu.airlinerecovery.eof;

import java.io.IOException;
import com.webobjects.eoaccess.EOUtilities;
import com.webobjects.eocontrol.EOEditingContext;
import com.webobjects.eocontrol.EOFetchSpecification;
import com.webobjects.eocontrol.EOQualifier;
import com.webobjects.foundation.NSArray;

public class Int {
	
	static AirplaneInit df = null;
	static FlightInfoLoad fil = null;
	static OPNTimer clock = null;

	
	public static AirplaneInit getInstanceOfAInit()throws IOException{
			if(df==null){
				df = new AirplaneInit();
			}
			return df;
	}
	
	public static FlightInfoLoad getInstanceOfFIL()throws IOException{
		if(fil==null){
			fil = new FlightInfoLoad(); 
		}
		return fil;
	}
	
	public static OPNTimer getInstanceOfTimer()throws IOException{
		if(clock==null){
			clock = new OPNTimer();

		}
		return clock;
	}

}