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;
  
  import com.actiontech.dble.plan.common.field.Field;
  import com.actiontech.dble.plan.common.item.num.ItemNum;
  import com.actiontech.dble.plan.common.time.MySQLTime;
  import com.alibaba.druid.sql.ast.SQLExpr;
  import com.alibaba.druid.sql.ast.expr.SQLIntegerExpr;
  
  import java.math.BigDecimal;
  import java.math.BigInteger;
  import java.util.List;
  
  public class ItemInt extends ItemNum {
      private BigInteger value;
  
  
      public ItemInt(long value) {
          super();
          this.value = BigInteger.valueOf(value);
          fixed = true;
          maxLength = String.valueOf(value).length();
      }
  
      @Override
      public ItemType type() {
          return ItemType.INT_ITEM;
      }
  
      @Override
      public ItemResult resultType() {
          return ItemResult.INT_RESULT;
      }
  
      @Override
      public FieldTypes fieldType() {
          return FieldTypes.MYSQL_TYPE_LONGLONG;
      }
  
      @Override
      public BigDecimal valReal() {
          return new BigDecimal(value);
      }
  
      @Override
      public BigInteger valInt() {
          return value;
      }
  
      @Override
      public String valStr() {
          return value.toString();
      }
  
      @Override
      public BigDecimal valDecimal() {
          return valReal();
      }
  
      @Override
      public boolean getDate(MySQLTime ltime, long fuzzydate) {
          return getDateFromInt(ltime, fuzzydate);
      }
  
      @Override
      public boolean getTime(MySQLTime ltime) {
          return getTimeFromInt(ltime);
      }
  
      @Override
      public int decimalPrecision() {
          return maxLength - (value.signum() == -1 ? 1 : 0);
      }
  
      @Override
      public ItemNum neg() {
          this.value = this.value.negate();
          return this;
      }
  
      @Override
      public int hashCode() {
          if (value == null)
              return 0;
          else
              return value.hashCode();
      }
  
      @Override
      public boolean equals(Object obj) {
          if (this == obj)
              return true;
          if (obj == null)
              return false;
          if (!(obj instanceof ItemInt))
              return false;
          ItemInt other = (ItemInt) obj;
          if (value == null || other.value == null)
              return value == null && other.value == null;
          else
              return value.equals(other.value);
      }
  
      @Override
      public SQLExpr toExpression() {
          return new SQLIntegerExpr(value);
      }
  
      @Override
      protected Item cloneStruct(boolean forCalculate, List<Item> calArgs, boolean isPushDown, List<Field> fields) {
          return new ItemInt(value.longValue());
      }
  
  
  }
  