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    • com.litongjava.db.SqlPara Maven / Gradle / Ivy

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    package com.litongjava.db;

import java.io.Serializable;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;

import com.litongjava.model.array.ArrayConst;

/**
 * SqlPara 封装查询使用的 sql 与参数，主要用于 getSqlPara(...) 返回值
 */
public class SqlPara implements Serializable {

  private static final long serialVersionUID = -8586448059592782381L;

  String sql;
  List paraList;

  public SqlPara() {
  }

  public SqlPara(String sql) {
    this.sql = sql;
  }

  public SqlPara setSql(String sql) {
    this.sql = sql;
    return this;
  }

  public SqlPara addPara(Object para) {
    if (paraList == null) {
      paraList = new ArrayList();
    }
    paraList.add(para);
    return this;
  }

  public SqlPara setPara(List paraList) {
    this.paraList = paraList;
    return this;
  }

  public String getSql() {
    return sql;
  }

  public Object[] getPara() {
    if (paraList == null || paraList.size() == 0) {
      return ArrayConst.NULL_PARA_ARRAY;
    } else {
      return paraList.toArray(new Object[paraList.size()]);
    }
  }

  public SqlPara clear() {
    sql = null;
    if (paraList != null) {
      paraList.clear();
    }
    return this;
  }

  public String toString() {
    return "Sql: " + sql + "\nPara: " + paraList;
  }

  public static SqlPara by(String sql) {
    return new SqlPara(sql);
  }

  public static SqlPara by(String sql, Object... paras) {
    List asList = Arrays.asList(paras);
    return new SqlPara(sql).setPara(asList);
  }
}
    
    
    
    

    




    
    
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