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.field;
  
  import com.actiontech.dble.plan.common.field.string.FieldStr;
  import com.actiontech.dble.plan.common.item.FieldTypes;
  
  import java.math.BigDecimal;
  import java.math.BigInteger;
  
  public class FieldNull extends FieldStr {
  
      FieldNull(String name, String dbName, String table, String orgTable, int charsetIndex, int fieldLength, int decimals, long flags) {
          super(name, dbName, table, orgTable, charsetIndex, fieldLength, decimals, flags);
          this.ptr = null;
      }
  
      @Override
      public FieldTypes fieldType() {
          return FieldTypes.MYSQL_TYPE_NULL;
      }
  
      @Override
      public boolean equals(final Field other, boolean binary) {
          return this == other;
      }
  
      @Override
      public BigDecimal valReal() {
          return BigDecimal.ZERO;
      }
  
      @Override
      public BigInteger valInt() {
          return BigInteger.ZERO;
      }
  
      @Override
      public String valStr() {
          return null;
      }
  
      @Override
      public BigDecimal valDecimal() {
          return null;
      }
  
      @Override
      public boolean isNull() {
          return true;
      }
  
      @Override
      protected void internalJob() {
      }
  
      @Override
      public int compareTo(Field other) {
          return -1;
      }
  
      @Override
      public int compare(byte[] v1, byte[] v2) {
          return -1;
      }
  
  }
  