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SPL(Structured Process Language) A programming language specially for structured data computing.

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package com.scudata.expression;

import com.scudata.dm.op.Channel;

/**
 * ?ܵ???Ա????????
 * ch.f()
 * @author RunQian
 *
 */
public abstract class ChannelFunction extends MemberFunction {
	protected Channel channel;

	public boolean isLeftTypeMatch(Object obj) {
		return obj instanceof Channel;
	}
	
	public void setDotLeftObject(Object obj) {
		channel = (Channel)obj;
	}
	
	/**
	 * ?ͷŽڵ????õĵ?????????Ķ???
	 */
	public void releaseDotLeftObject() {
		channel = null;
	}
}