com.scudata.ide.spl.etl.element.ASelect Maven / Gradle / Ivy

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

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package com.scudata.ide.spl.etl.element;

import com.scudata.chart.Consts;
import com.scudata.ide.spl.etl.EtlConsts;
import com.scudata.ide.spl.etl.ObjectElement;
import com.scudata.ide.spl.etl.ParamInfo;
import com.scudata.ide.spl.etl.ParamInfoList;

/**
 * ?????????༭ A.select()
 * ??????ǰ׺A??ʾ???
 * 
 * @author Joancy
 *
 */
public class ASelect extends ObjectElement {
	public String filter;
	
	public boolean one;//1
	public boolean z;
	public boolean b;
	public boolean m;
	public boolean c;
	public boolean r;
	public boolean t;

	/**
	 * ??ȡ???ڽ???༭?Ĳ?????Ϣ?б?
	 */
	public ParamInfoList getParamInfoList() {
		ParamInfoList paramInfos = new ParamInfoList();
		ParamInfo.setCurrent(ASelect.class, this);

		paramInfos.add(new ParamInfo("filter"));
		String group = "options";
		paramInfos.add(group, new ParamInfo("one", Consts.INPUT_CHECKBOX));
		paramInfos.add(group, new ParamInfo("z", Consts.INPUT_CHECKBOX));
		paramInfos.add(group, new ParamInfo("b", Consts.INPUT_CHECKBOX));
		paramInfos.add(group, new ParamInfo("m", Consts.INPUT_CHECKBOX));
		paramInfos.add(group, new ParamInfo("c", Consts.INPUT_CHECKBOX));
		paramInfos.add(group, new ParamInfo("r", Consts.INPUT_CHECKBOX));
		paramInfos.add(group, new ParamInfo("t", Consts.INPUT_CHECKBOX));

		return paramInfos;
	}


	/**
	 * ??ȡ??????
	 * ???͵ĳ???????Ϊ
	 * EtlConsts.TYPE_XXX
	 * @return ǰ׺A??ͷ?ĺ???????????EtlConsts.TYPE_SEQUENCE
	 */
	public byte getParentType() {
		return EtlConsts.TYPE_SEQUENCE;
	}

	/**
	 * ??ȡ?ú????ķ???????
	 * @return EtlConsts.TYPE_SEQUENCE
	 */
	public byte getReturnType() {
		return EtlConsts.TYPE_SEQUENCE;
	}
	/**
	 * ??ȡ????????SPL????ʽ??ѡ?
	 */
	public String optionString(){
//		1bzm
		if(m){//??@1bzѡ???
			return "m";
		}
		StringBuffer options = new StringBuffer();
		if(one){
			options.append("1");
		}
		if(b){
			options.append("b");
		}
		if(z){
			options.append("z");
		}
		if(c){
			options.append("c");
		}
		if(r){
			options.append("r");
		}
		if(t){
			options.append("t");
		}
		return options.toString();
	}

	/**
	 * ??ȡ????????SPL????ʽ?ĺ?????
	 */
	public String getFuncName() {
		return "select";
	}


	/**
	 * ??ȡ????????SPL????ʽ?ĺ?????
	 * ??setFuncBody???溯????Ȼ?????ʽ?ĸ?ֵҲ???ǻ????
	 */
	public String getFuncBody() {
		return getExpressionExp(filter);
	}

	/**
	 * ???ú?????
	 * @param funcBody ??????
	 */
	public boolean setFuncBody(String funcBody) {
		filter = getExpression(funcBody);
		return true;
	}
}