htmldatatablephaselistener.java

来自「一个使用struts+hibernate+spring开发的完的网站源代码。」· Java 代码 · 共 58 行

package org.apache.myfaces.component.html.ext;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

import javax.faces.component.UIComponent;
import javax.faces.component.UIViewRoot;
import javax.faces.context.FacesContext;
import javax.faces.event.PhaseEvent;
import javax.faces.event.PhaseId;
import javax.faces.event.PhaseListener;
import java.util.Iterator;

/**
 * @author Manfred Geiler (latest modification by $Author: matze $)
 * @version $Revision: 1.2 $ $Date: 2004/10/13 11:50:56 $
 */
public class HtmlDataTablePhaseListener
        implements PhaseListener
{
    private static final Log log = LogFactory.getLog(HtmlDataTablePhaseListener.class);

    public HtmlDataTablePhaseListener()
    {
        if (log.isDebugEnabled()) log.debug("New HtmlDataTablePhaseListener");
    }

    public PhaseId getPhaseId()
    {
        return PhaseId.RENDER_RESPONSE;
    }

    public void afterPhase(PhaseEvent event)
    {
    }

    public void beforePhase(PhaseEvent event)
    {
        FacesContext facesContext = event.getFacesContext();
        UIViewRoot viewRoot = facesContext.getViewRoot();
        recurseFacetsAndChildren(facesContext, viewRoot.getFacetsAndChildren());
    }

    protected void recurseFacetsAndChildren(FacesContext facesContext, Iterator iterator)
    {
        while (iterator.hasNext())
        {
            UIComponent comp = (UIComponent)iterator.next();
            if (comp instanceof HtmlDataTable)
            {
                ((HtmlDataTable)comp).refresh(facesContext);
            }
            recurseFacetsAndChildren(facesContext, comp.getFacetsAndChildren());
        }
    }

}