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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.excel.XlsFileObject;

/**
 * xo.func() xls?????????Դ???
 *
 */
public abstract class XOFunction extends MemberFunction {
	/**
	 * xo?ļ?????
	 */
	protected XlsFileObject file;

	/**
	 * ????????XlsFileObject?????
	 */
	public boolean isLeftTypeMatch(Object obj) {
		return obj instanceof XlsFileObject;
	}

	public void setDotLeftObject(Object obj) {
		file = (XlsFileObject) obj;
	}
	
	/**
	 * ?ͷŽڵ????õĵ?????????Ķ???
	 */
	public void releaseDotLeftObject() {
		file = null;
	}
}




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