houseconverter.java

来自「一个购房管理系统,JSF+Hibernate+Mssql2」· Java 代码 · 共 51 行

/*
 * HouseConverter.java
 *
 * Created on 2007��5��29��, ����2:59
 *
 * To change this template, choose Tools | Template Manager
 * and open the template in the editor.
 */

package com.housesale.jsfbean;

import javax.faces.component.UIComponent;
import javax.faces.context.FacesContext;
import javax.faces.convert.Converter;

import com.housesale.hibernate.House;

/**
 *
 * @author MSQ
 */
public class HouseConverter implements Converter {
    
    /** Creates a new instance of HouseConverter */
    public HouseConverter() {
    }

    public Object getAsObject(FacesContext facesContext, UIComponent uIComponent, String string) {
        if (string == null) {
            return null;
        }
        Integer id = new Integer(string);
        HouseController controller = (HouseController) facesContext.getApplication().createValueBinding("#{house}").getValue(facesContext);
        
        return controller.findHouse(id);
    }

    public String getAsString(FacesContext facesContext, UIComponent uIComponent, Object object) {
        if (object == null) {
            return null;
        }
        if(object instanceof House) {
            House o = (House) object;
            return "" + o.getHouseId();
        } else {
            throw new IllegalArgumentException("object:" + object + " of type:" + object.getClass().getName() + "; expected type: com.housesale.hibernate.House");
        }
    }
    
}