package com.mandi.dao.common;
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import java.io.Serializable;
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import java.util.ArrayList;
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import java.util.List;
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import org.apache.commons.lang3.StringUtils;
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/**
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* @author mengly
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* @version 创建时间：2016年4月1日 下午5:30:17
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* 类说明
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*/
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public class Sort implements Serializable {
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private static final long serialVersionUID = 1L;
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private List<String> ascFields;
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private List<String> descFields;
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public Sort() {
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ascFields=new ArrayList<String>();
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descFields=new ArrayList<String>();
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}
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public void addAscField(String field)
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{
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this.ascFields.add(field);
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}
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public void addDescFields(String field)
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{
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this.descFields.add(field);
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}
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@Override
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public String toString() {
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if(this.ascFields.isEmpty()&&this.descFields.isEmpty())
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return "";
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List<String> tstrs=new ArrayList<String>();
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for (String string : ascFields) {
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tstrs.add(string+" asc");
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}
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for (String string : descFields) {
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tstrs.add(string+" desc");
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}
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if(tstrs.isEmpty())
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return "";
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String str=" order by "+StringUtils.join(tstrs, ",");
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return str;
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}
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}
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