content: /*
   * Copyright (C) 2016-2023 ActionTech.
   * License: http://www.gnu.org/licenses/gpl.html GPL version 2 or higher.
   */
  
  package com.actiontech.dble.plan.common.item.function.timefunc;
  
  import com.actiontech.dble.plan.common.item.FieldTypes;
  import com.actiontech.dble.plan.common.item.Item;
  import com.actiontech.dble.plan.common.time.MySQLTime;
  import com.actiontech.dble.plan.common.time.MyTime;
  
  import java.math.BigDecimal;
  import java.math.BigInteger;
  import java.util.List;
  
  
  public abstract class ItemDatetimeFunc extends ItemTemporalFunc {
  
      public ItemDatetimeFunc(List<Item> args, int charsetIndex) {
          super(args, charsetIndex);
      }
  
      @Override
      public FieldTypes fieldType() {
          return FieldTypes.MYSQL_TYPE_DATETIME;
      }
  
      @Override
      public BigDecimal valReal() {
          return valRealFromDecimal();
      }
  
      @Override
      public String valStr() {
          return valStringFromDatetime();
      }
  
      @Override
      public BigInteger valInt() {
          return BigInteger.valueOf(valIntFromDatetime());
      }
  
      @Override
      public long valDateTemporal() {
          MySQLTime ltime = new MySQLTime();
          return getDate(ltime, MyTime.TIME_FUZZY_DATE) ? 0L : MyTime.timeToLonglongDatetimePacked(ltime);
      }
  
      @Override
      public BigDecimal valDecimal() {
          return valDecimalFromDate();
      }
  
      @Override
      public boolean getTime(MySQLTime ltime) {
          return getTimeFromDatetime(ltime);
      }
  
      // All datetime functions must implement get_date()
      // to avoid use of generic Item::get_date()
      // which converts to string and then parses the string as DATETIME.
      public abstract boolean getDate(MySQLTime res, long fuzzyDate);
  
  }
  