com.scudata.thread.GroupsJob2 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.thread;

import com.scudata.array.IntArray;
import com.scudata.dm.Context;
import com.scudata.dm.GroupsSyncReader;
import com.scudata.dm.Sequence;
import com.scudata.dm.cursor.ICursor;
import com.scudata.dm.op.IGroupsResult;
import com.scudata.expression.Expression;

/**
 * ???α??????ִ?з????????????
 * @author LW
 *
 */
public class GroupsJob2 extends Job {
	private Sequence data;// ????
	private Object key; // ???ݵ?key (data????ʽʱ????????)
	private IntArray hashValue; // ???ݵ?key??hash (data????ʽʱ????????)
	
	private GroupsSyncReader reader; // ?????α?
	
	private Expression[] exps; // ?????ֶα???ʽ????
	private String[] names; // ?????ֶ???????
	private Expression[] calcExps; // ?????ֶα???ʽ????
	private String[] calcNames; // ?????ֶ???????
	private String opt; // ѡ??
	private Context ctx; // ??????????
	
	private IGroupsResult groupsResult; // ???????
	private int capacity; // hash????С
	
	private int hashStart;// ????
	private int hashEnd;// ??????
	
	public GroupsJob2(GroupsSyncReader reader, Expression[] exps, String[] names,
			Expression[] calcExps, String[] calcNames, String opt, Context ctx, int capacity) {
		this.reader = reader;
		this.exps = exps;
		this.names = names;
		this.calcExps = calcExps;
		this.calcNames = calcNames;
		this.opt = opt;
		this.ctx = ctx;
		this.capacity = capacity;
	}
	
	public GroupsJob2(Sequence data, Object key, IntArray hashValue, Expression[] exps, String[] names,
			Expression[] calcExps, String[] calcNames, String opt, Context ctx, int capacity) {
		this.data = data;
		this.key = key;
		this.hashValue = hashValue;
		this.exps = exps;
		this.names = names;
		this.calcExps = calcExps;
		this.calcNames = calcNames;
		this.opt = opt;
		this.ctx = ctx;
		this.capacity = capacity;
	}
	
	/**
	 * ȡ???????
	 * @return IGroupsResult
	 */
	public IGroupsResult getGroupsResult() {
		return groupsResult;
	}

	public void run() {
		if (data != null) {
			groupsResult = data.getGroupsResult(exps, names, calcExps, calcNames, opt, ctx);
			groupsResult.setCapacity(capacity);
			groupsResult.push(data, key, hashValue, hashStart, hashEnd);
			return;
		}
		ICursor cursor = reader.getCursor();
		groupsResult = cursor.getGroupsResult(exps, names, calcExps, calcNames, opt, ctx);
		groupsResult.setCapacity(capacity);
		
		groupsResult.push(reader, hashStart, hashEnd);
	}
	
	public void setHashStart(int hashStart) {
		this.hashStart = hashStart;
	}

	public void setHashEnd(int hashEnd) {
		this.hashEnd = hashEnd;
	}
}