File: context.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN"
"http://www.springframework.org/dtd/spring-beans.dtd">
<beans>
<bean id="weatherService" class="WeatherServiceImpl">
<property name="weatherDao">
<ref local="weatherDao"/>
</property>
</bean>
<bean id="weatherDao" class="StaticDataWeatherDaoImpl">
</bean>
</beans>
File: Main.java
import java.util.Date;
import java.util.GregorianCalendar;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
class Main {
public static void main(String args[]) throws Exception {
ApplicationContext ctx = new ClassPathXmlApplicationContext("context.xml");
WeatherService ws = (WeatherService) ctx.getBean("weatherService");
Double high = ws.getHistoricalHigh(new GregorianCalendar(2004, 0, 1).getTime());
System.out.println("High was: " + high);
}
}
class StaticDataWeatherDaoImpl implements WeatherDao {
public WeatherData find(Date date) {
WeatherData wd = new WeatherData();
wd.setDate((Date) date.clone());
return wd;
}
public WeatherData save(Date date) {
System.out.println("save");
return null;
}
public WeatherData update(Date date) {
System.out.println("update");
return null;
}
}
interface WeatherService {
Double getHistoricalHigh(Date date);
}
class WeatherServiceImpl implements WeatherService {
private WeatherDao weatherDao;
public void setWeatherDao(WeatherDao weatherDao) {
this.weatherDao = weatherDao;
}
public Double getHistoricalHigh(Date date) {
return null;
}
}
interface WeatherDao {
WeatherData find(Date date);
WeatherData save(Date date);
WeatherData update(Date date);
}
class WeatherData {
Date date;
public Date getDate() {
return date;
}
public void setDate(Date date) {
this.date = date;
}
}
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