htmlhelloworldtag.java

来自「tbuy1.1.5是在netbeans环境下用JSF技术编写的一个论坛tbuy1」· Java 代码 · 共 59 行

/*
 * HtmlHelloWorldTag.java
 * 
 * Created on 2007-9-24, 7:19:26
 * 
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

package biz.tbuy.common.components.test;

import javax.faces.application.Application;
import javax.faces.component.UIComponent;
import javax.faces.context.FacesContext;
import javax.faces.el.ValueBinding;
import javax.faces.webapp.UIComponentTag;
/**
 *
 * @author Administrator
 */
public class HtmlHelloWorldTag extends UIComponentTag{
    String msg = null;

    public HtmlHelloWorldTag() {
    }

    public String getComponentType() {
        return "HtmlHelloWorld";
    }

    public String getRendererType() {
        return null;
    }
    
    @Override
    protected void setProperties(UIComponent ui) {
        super.setProperties(ui);
        if (msg != null) {
            if (isValueReference(msg)) {
                FacesContext fc = FacesContext.getCurrentInstance();
                Application app = fc.getApplication();
                ValueBinding vb = app.createValueBinding(msg);
                ui.setValueBinding("msg", vb);
            } else {
                ui.getAttributes().put("msg", msg);
            }
        }
    }
    
    public void setMsg(String msg) {
        this.msg = msg;
    }
    
    public void release() {
        super.release();
        msg = null;
    }
}