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ZK Bind

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/* AbstractBindingHelper.java

	Purpose:
		
	Description:
		
	History:
		2011/11/14 Created by Dennis Chen

Copyright (C) 2011 Potix Corporation. All Rights Reserved.
*/
package org.zkoss.bind.impl;

import java.io.Serializable;
import java.util.Set;

import org.zkoss.bind.BindContext;
import org.zkoss.bind.Binder;
import org.zkoss.bind.Phase;
import org.zkoss.bind.Property;
import org.zkoss.bind.sys.BinderCtrl;
import org.zkoss.bind.sys.ValidationMessages;
import org.zkoss.zk.ui.Component;

/**
 * to help implement BinderImpl 
 * @author dennis
 *
 */
public abstract class AbstractBindingHandler implements Serializable {
	private static final long serialVersionUID = 1L;
	
	protected Binder _binder;
	
	public void setBinder(Binder binder){
		_binder = binder;
	}
	
	protected void doPrePhase(Phase phase, BindContext ctx) {
		((BinderImpl)_binder).doPrePhase(phase, ctx);
	}
	
	protected void doPostPhase(Phase phase, BindContext ctx) {
		((BinderImpl)_binder).doPostPhase(phase, ctx);
	}
	
	@SuppressWarnings("unchecked")
	static protected Set getNotifys(BindContext ctx){
		return (Set)ctx.getAttribute(BinderImpl.NOTIFYS);
	}
	
	protected void clearValidationMessages(Binder binder, Component component,String attr){
		ValidationMessages vmsgs = ((BinderCtrl)binder).getValidationMessages();
		if(vmsgs!=null){
			vmsgs.clearMessages(component,attr);
		}
	}
}