content: package com.alibaba.tesla.tkgone.server.domain;
  
  import java.util.ArrayList;
  import java.util.Date;
  import java.util.List;
  
  public class ChatopsHistoryExample {
      protected String orderByClause;
  
      protected boolean distinct;
  
      protected List<Criteria> oredCriteria;
  
      public ChatopsHistoryExample() {
          oredCriteria = new ArrayList<Criteria>();
      }
  
      public void setOrderByClause(String orderByClause) {
          this.orderByClause = orderByClause;
      }
  
      public String getOrderByClause() {
          return orderByClause;
      }
  
      public void setDistinct(boolean distinct) {
          this.distinct = distinct;
      }
  
      public boolean isDistinct() {
          return distinct;
      }
  
      public List<Criteria> getOredCriteria() {
          return oredCriteria;
      }
  
      public void or(Criteria criteria) {
          oredCriteria.add(criteria);
      }
  
      public Criteria or() {
          Criteria criteria = createCriteriaInternal();
          oredCriteria.add(criteria);
          return criteria;
      }
  
      public Criteria createCriteria() {
          Criteria criteria = createCriteriaInternal();
          if (oredCriteria.size() == 0) {
              oredCriteria.add(criteria);
          }
          return criteria;
      }
  
      protected Criteria createCriteriaInternal() {
          Criteria criteria = new Criteria();
          return criteria;
      }
  
      public void clear() {
          oredCriteria.clear();
          orderByClause = null;
          distinct = false;
      }
  
      protected abstract static class GeneratedCriteria {
          protected List<Criterion> criteria;
  
          protected GeneratedCriteria() {
              super();
              criteria = new ArrayList<Criterion>();
          }
  
          public boolean isValid() {
              return criteria.size() > 0;
          }
  
          public List<Criterion> getAllCriteria() {
              return criteria;
          }
  
          public List<Criterion> getCriteria() {
              return criteria;
          }
  
          protected void addCriterion(String condition) {
              if (condition == null) {
                  throw new RuntimeException("Value for condition cannot be null");
              }
              criteria.add(new Criterion(condition));
          }
  
          protected void addCriterion(String condition, Object value, String property) {
              if (value == null) {
                  throw new RuntimeException("Value for " + property + " cannot be null");
              }
              criteria.add(new Criterion(condition, value));
          }
  
          protected void addCriterion(String condition, Object value1, Object value2, String property) {
              if (value1 == null || value2 == null) {
                  throw new RuntimeException("Between values for " + property + " cannot be null");
              }
              criteria.add(new Criterion(condition, value1, value2));
          }
  
          public Criteria andIdIsNull() {
              addCriterion("id is null");
              return (Criteria) this;
          }
  
          public Criteria andIdIsNotNull() {
              addCriterion("id is not null");
              return (Criteria) this;
          }
  
          public Criteria andIdEqualTo(Long value) {
              addCriterion("id =", value, "id");
              return (Criteria) this;
          }
  
          public Criteria andIdNotEqualTo(Long value) {
              addCriterion("id <>", value, "id");
              return (Criteria) this;
          }
  
          public Criteria andIdGreaterThan(Long value) {
              addCriterion("id >", value, "id");
              return (Criteria) this;
          }
  
          public Criteria andIdGreaterThanOrEqualTo(Long value) {
              addCriterion("id >=", value, "id");
              return (Criteria) this;
          }
  
          public Criteria andIdLessThan(Long value) {
              addCriterion("id <", value, "id");
              return (Criteria) this;
          }
  
          public Criteria andIdLessThanOrEqualTo(Long value) {
              addCriterion("id <=", value, "id");
              return (Criteria) this;
          }
  
          public Criteria andIdIn(List<Long> values) {
              addCriterion("id in", values, "id");
              return (Criteria) this;
          }
  
          public Criteria andIdNotIn(List<Long> values) {
              addCriterion("id not in", values, "id");
              return (Criteria) this;
          }
  
          public Criteria andIdBetween(Long value1, Long value2) {
              addCriterion("id between", value1, value2, "id");
              return (Criteria) this;
          }
  
          public Criteria andIdNotBetween(Long value1, Long value2) {
              addCriterion("id not between", value1, value2, "id");
              return (Criteria) this;
          }
  
          public Criteria andGmtCreateIsNull() {
              addCriterion("gmt_create is null");
              return (Criteria) this;
          }
  
          public Criteria andGmtCreateIsNotNull() {
              addCriterion("gmt_create is not null");
              return (Criteria) this;
          }
  
          public Criteria andGmtCreateEqualTo(Date value) {
              addCriterion("gmt_create =", value, "gmtCreate");
              return (Criteria) this;
          }
  
          public Criteria andGmtCreateNotEqualTo(Date value) {
              addCriterion("gmt_create <>", value, "gmtCreate");
              return (Criteria) this;
          }
  
          public Criteria andGmtCreateGreaterThan(Date value) {
              addCriterion("gmt_create >", value, "gmtCreate");
              return (Criteria) this;
          }
  
          public Criteria andGmtCreateGreaterThanOrEqualTo(Date value) {
              addCriterion("gmt_create >=", value, "gmtCreate");
              return (Criteria) this;
          }
  
          public Criteria andGmtCreateLessThan(Date value) {
              addCriterion("gmt_create <", value, "gmtCreate");
              return (Criteria) this;
          }
  
          public Criteria andGmtCreateLessThanOrEqualTo(Date value) {
              addCriterion("gmt_create <=", value, "gmtCreate");
              return (Criteria) this;
          }
  
          public Criteria andGmtCreateIn(List<Date> values) {
              addCriterion("gmt_create in", values, "gmtCreate");
              return (Criteria) this;
          }
  
          public Criteria andGmtCreateNotIn(List<Date> values) {
              addCriterion("gmt_create not in", values, "gmtCreate");
              return (Criteria) this;
          }
  
          public Criteria andGmtCreateBetween(Date value1, Date value2) {
              addCriterion("gmt_create between", value1, value2, "gmtCreate");
              return (Criteria) this;
          }
  
          public Criteria andGmtCreateNotBetween(Date value1, Date value2) {
              addCriterion("gmt_create not between", value1, value2, "gmtCreate");
              return (Criteria) this;
          }
  
          public Criteria andGmtModifiedIsNull() {
              addCriterion("gmt_modified is null");
              return (Criteria) this;
          }
  
          public Criteria andGmtModifiedIsNotNull() {
              addCriterion("gmt_modified is not null");
              return (Criteria) this;
          }
  
          public Criteria andGmtModifiedEqualTo(Date value) {
              addCriterion("gmt_modified =", value, "gmtModified");
              return (Criteria) this;
          }
  
          public Criteria andGmtModifiedNotEqualTo(Date value) {
              addCriterion("gmt_modified <>", value, "gmtModified");
              return (Criteria) this;
          }
  
          public Criteria andGmtModifiedGreaterThan(Date value) {
              addCriterion("gmt_modified >", value, "gmtModified");
              return (Criteria) this;
          }
  
          public Criteria andGmtModifiedGreaterThanOrEqualTo(Date value) {
              addCriterion("gmt_modified >=", value, "gmtModified");
              return (Criteria) this;
          }
  
          public Criteria andGmtModifiedLessThan(Date value) {
              addCriterion("gmt_modified <", value, "gmtModified");
              return (Criteria) this;
          }
  
          public Criteria andGmtModifiedLessThanOrEqualTo(Date value) {
              addCriterion("gmt_modified <=", value, "gmtModified");
              return (Criteria) this;
          }
  
          public Criteria andGmtModifiedIn(List<Date> values) {
              addCriterion("gmt_modified in", values, "gmtModified");
              return (Criteria) this;
          }
  
          public Criteria andGmtModifiedNotIn(List<Date> values) {
              addCriterion("gmt_modified not in", values, "gmtModified");
              return (Criteria) this;
          }
  
          public Criteria andGmtModifiedBetween(Date value1, Date value2) {
              addCriterion("gmt_modified between", value1, value2, "gmtModified");
              return (Criteria) this;
          }
  
          public Criteria andGmtModifiedNotBetween(Date value1, Date value2) {
              addCriterion("gmt_modified not between", value1, value2, "gmtModified");
              return (Criteria) this;
          }
  
          public Criteria andCategoryIsNull() {
              addCriterion("category is null");
              return (Criteria) this;
          }
  
          public Criteria andCategoryIsNotNull() {
              addCriterion("category is not null");
              return (Criteria) this;
          }
  
          public Criteria andCategoryEqualTo(String value) {
              addCriterion("category =", value, "category");
              return (Criteria) this;
          }
  
          public Criteria andCategoryNotEqualTo(String value) {
              addCriterion("category <>", value, "category");
              return (Criteria) this;
          }
  
          public Criteria andCategoryGreaterThan(String value) {
              addCriterion("category >", value, "category");
              return (Criteria) this;
          }
  
          public Criteria andCategoryGreaterThanOrEqualTo(String value) {
              addCriterion("category >=", value, "category");
              return (Criteria) this;
          }
  
          public Criteria andCategoryLessThan(String value) {
              addCriterion("category <", value, "category");
              return (Criteria) this;
          }
  
          public Criteria andCategoryLessThanOrEqualTo(String value) {
              addCriterion("category <=", value, "category");
              return (Criteria) this;
          }
  
          public Criteria andCategoryLike(String value) {
              addCriterion("category like", value, "category");
              return (Criteria) this;
          }
  
          public Criteria andCategoryNotLike(String value) {
              addCriterion("category not like", value, "category");
              return (Criteria) this;
          }
  
          public Criteria andCategoryIn(List<String> values) {
              addCriterion("category in", values, "category");
              return (Criteria) this;
          }
  
          public Criteria andCategoryNotIn(List<String> values) {
              addCriterion("category not in", values, "category");
              return (Criteria) this;
          }
  
          public Criteria andCategoryBetween(String value1, String value2) {
              addCriterion("category between", value1, value2, "category");
              return (Criteria) this;
          }
  
          public Criteria andCategoryNotBetween(String value1, String value2) {
              addCriterion("category not between", value1, value2, "category");
              return (Criteria) this;
          }
  
          public Criteria andSenderNickIsNull() {
              addCriterion("sender_nick is null");
              return (Criteria) this;
          }
  
          public Criteria andSenderNickIsNotNull() {
              addCriterion("sender_nick is not null");
              return (Criteria) this;
          }
  
          public Criteria andSenderNickEqualTo(String value) {
              addCriterion("sender_nick =", value, "senderNick");
              return (Criteria) this;
          }
  
          public Criteria andSenderNickNotEqualTo(String value) {
              addCriterion("sender_nick <>", value, "senderNick");
              return (Criteria) this;
          }
  
          public Criteria andSenderNickGreaterThan(String value) {
              addCriterion("sender_nick >", value, "senderNick");
              return (Criteria) this;
          }
  
          public Criteria andSenderNickGreaterThanOrEqualTo(String value) {
              addCriterion("sender_nick >=", value, "senderNick");
              return (Criteria) this;
          }
  
          public Criteria andSenderNickLessThan(String value) {
              addCriterion("sender_nick <", value, "senderNick");
              return (Criteria) this;
          }
  
          public Criteria andSenderNickLessThanOrEqualTo(String value) {
              addCriterion("sender_nick <=", value, "senderNick");
              return (Criteria) this;
          }
  
          public Criteria andSenderNickLike(String value) {
              addCriterion("sender_nick like", value, "senderNick");
              return (Criteria) this;
          }
  
          public Criteria andSenderNickNotLike(String value) {
              addCriterion("sender_nick not like", value, "senderNick");
              return (Criteria) this;
          }
  
          public Criteria andSenderNickIn(List<String> values) {
              addCriterion("sender_nick in", values, "senderNick");
              return (Criteria) this;
          }
  
          public Criteria andSenderNickNotIn(List<String> values) {
              addCriterion("sender_nick not in", values, "senderNick");
              return (Criteria) this;
          }
  
          public Criteria andSenderNickBetween(String value1, String value2) {
              addCriterion("sender_nick between", value1, value2, "senderNick");
              return (Criteria) this;
          }
  
          public Criteria andSenderNickNotBetween(String value1, String value2) {
              addCriterion("sender_nick not between", value1, value2, "senderNick");
              return (Criteria) this;
          }
  
          public Criteria andSenderIdIsNull() {
              addCriterion("sender_id is null");
              return (Criteria) this;
          }
  
          public Criteria andSenderIdIsNotNull() {
              addCriterion("sender_id is not null");
              return (Criteria) this;
          }
  
          public Criteria andSenderIdEqualTo(String value) {
              addCriterion("sender_id =", value, "senderId");
              return (Criteria) this;
          }
  
          public Criteria andSenderIdNotEqualTo(String value) {
              addCriterion("sender_id <>", value, "senderId");
              return (Criteria) this;
          }
  
          public Criteria andSenderIdGreaterThan(String value) {
              addCriterion("sender_id >", value, "senderId");
              return (Criteria) this;
          }
  
          public Criteria andSenderIdGreaterThanOrEqualTo(String value) {
              addCriterion("sender_id >=", value, "senderId");
              return (Criteria) this;
          }
  
          public Criteria andSenderIdLessThan(String value) {
              addCriterion("sender_id <", value, "senderId");
              return (Criteria) this;
          }
  
          public Criteria andSenderIdLessThanOrEqualTo(String value) {
              addCriterion("sender_id <=", value, "senderId");
              return (Criteria) this;
          }
  
          public Criteria andSenderIdLike(String value) {
              addCriterion("sender_id like", value, "senderId");
              return (Criteria) this;
          }
  
          public Criteria andSenderIdNotLike(String value) {
              addCriterion("sender_id not like", value, "senderId");
              return (Criteria) this;
          }
  
          public Criteria andSenderIdIn(List<String> values) {
              addCriterion("sender_id in", values, "senderId");
              return (Criteria) this;
          }
  
          public Criteria andSenderIdNotIn(List<String> values) {
              addCriterion("sender_id not in", values, "senderId");
              return (Criteria) this;
          }
  
          public Criteria andSenderIdBetween(String value1, String value2) {
              addCriterion("sender_id between", value1, value2, "senderId");
              return (Criteria) this;
          }
  
          public Criteria andSenderIdNotBetween(String value1, String value2) {
              addCriterion("sender_id not between", value1, value2, "senderId");
              return (Criteria) this;
          }
  
          public Criteria andSenderEmpidIsNull() {
              addCriterion("sender_empid is null");
              return (Criteria) this;
          }
  
          public Criteria andSenderEmpidIsNotNull() {
              addCriterion("sender_empid is not null");
              return (Criteria) this;
          }
  
          public Criteria andSenderEmpidEqualTo(String value) {
              addCriterion("sender_empid =", value, "senderEmpid");
              return (Criteria) this;
          }
  
          public Criteria andSenderEmpidNotEqualTo(String value) {
              addCriterion("sender_empid <>", value, "senderEmpid");
              return (Criteria) this;
          }
  
          public Criteria andSenderEmpidGreaterThan(String value) {
              addCriterion("sender_empid >", value, "senderEmpid");
              return (Criteria) this;
          }
  
          public Criteria andSenderEmpidGreaterThanOrEqualTo(String value) {
              addCriterion("sender_empid >=", value, "senderEmpid");
              return (Criteria) this;
          }
  
          public Criteria andSenderEmpidLessThan(String value) {
              addCriterion("sender_empid <", value, "senderEmpid");
              return (Criteria) this;
          }
  
          public Criteria andSenderEmpidLessThanOrEqualTo(String value) {
              addCriterion("sender_empid <=", value, "senderEmpid");
              return (Criteria) this;
          }
  
          public Criteria andSenderEmpidLike(String value) {
              addCriterion("sender_empid like", value, "senderEmpid");
              return (Criteria) this;
          }
  
          public Criteria andSenderEmpidNotLike(String value) {
              addCriterion("sender_empid not like", value, "senderEmpid");
              return (Criteria) this;
          }
  
          public Criteria andSenderEmpidIn(List<String> values) {
              addCriterion("sender_empid in", values, "senderEmpid");
              return (Criteria) this;
          }
  
          public Criteria andSenderEmpidNotIn(List<String> values) {
              addCriterion("sender_empid not in", values, "senderEmpid");
              return (Criteria) this;
          }
  
          public Criteria andSenderEmpidBetween(String value1, String value2) {
              addCriterion("sender_empid between", value1, value2, "senderEmpid");
              return (Criteria) this;
          }
  
          public Criteria andSenderEmpidNotBetween(String value1, String value2) {
              addCriterion("sender_empid not between", value1, value2, "senderEmpid");
              return (Criteria) this;
          }
  
          public Criteria andIsConversationIsNull() {
              addCriterion("is_conversation is null");
              return (Criteria) this;
          }
  
          public Criteria andIsConversationIsNotNull() {
              addCriterion("is_conversation is not null");
              return (Criteria) this;
          }
  
          public Criteria andIsConversationEqualTo(Integer value) {
              addCriterion("is_conversation =", value, "isConversation");
              return (Criteria) this;
          }
  
          public Criteria andIsConversationNotEqualTo(Integer value) {
              addCriterion("is_conversation <>", value, "isConversation");
              return (Criteria) this;
          }
  
          public Criteria andIsConversationGreaterThan(Integer value) {
              addCriterion("is_conversation >", value, "isConversation");
              return (Criteria) this;
          }
  
          public Criteria andIsConversationGreaterThanOrEqualTo(Integer value) {
              addCriterion("is_conversation >=", value, "isConversation");
              return (Criteria) this;
          }
  
          public Criteria andIsConversationLessThan(Integer value) {
              addCriterion("is_conversation <", value, "isConversation");
              return (Criteria) this;
          }
  
          public Criteria andIsConversationLessThanOrEqualTo(Integer value) {
              addCriterion("is_conversation <=", value, "isConversation");
              return (Criteria) this;
          }
  
          public Criteria andIsConversationIn(List<Integer> values) {
              addCriterion("is_conversation in", values, "isConversation");
              return (Criteria) this;
          }
  
          public Criteria andIsConversationNotIn(List<Integer> values) {
              addCriterion("is_conversation not in", values, "isConversation");
              return (Criteria) this;
          }
  
          public Criteria andIsConversationBetween(Integer value1, Integer value2) {
              addCriterion("is_conversation between", value1, value2, "isConversation");
              return (Criteria) this;
          }
  
          public Criteria andIsConversationNotBetween(Integer value1, Integer value2) {
              addCriterion("is_conversation not between", value1, value2, "isConversation");
              return (Criteria) this;
          }
  
          public Criteria andConversationTitleIsNull() {
              addCriterion("conversation_title is null");
              return (Criteria) this;
          }
  
          public Criteria andConversationTitleIsNotNull() {
              addCriterion("conversation_title is not null");
              return (Criteria) this;
          }
  
          public Criteria andConversationTitleEqualTo(String value) {
              addCriterion("conversation_title =", value, "conversationTitle");
              return (Criteria) this;
          }
  
          public Criteria andConversationTitleNotEqualTo(String value) {
              addCriterion("conversation_title <>", value, "conversationTitle");
              return (Criteria) this;
          }
  
          public Criteria andConversationTitleGreaterThan(String value) {
              addCriterion("conversation_title >", value, "conversationTitle");
              return (Criteria) this;
          }
  
          public Criteria andConversationTitleGreaterThanOrEqualTo(String value) {
              addCriterion("conversation_title >=", value, "conversationTitle");
              return (Criteria) this;
          }
  
          public Criteria andConversationTitleLessThan(String value) {
              addCriterion("conversation_title <", value, "conversationTitle");
              return (Criteria) this;
          }
  
          public Criteria andConversationTitleLessThanOrEqualTo(String value) {
              addCriterion("conversation_title <=", value, "conversationTitle");
              return (Criteria) this;
          }
  
          public Criteria andConversationTitleLike(String value) {
              addCriterion("conversation_title like", value, "conversationTitle");
              return (Criteria) this;
          }
  
          public Criteria andConversationTitleNotLike(String value) {
              addCriterion("conversation_title not like", value, "conversationTitle");
              return (Criteria) this;
          }
  
          public Criteria andConversationTitleIn(List<String> values) {
              addCriterion("conversation_title in", values, "conversationTitle");
              return (Criteria) this;
          }
  
          public Criteria andConversationTitleNotIn(List<String> values) {
              addCriterion("conversation_title not in", values, "conversationTitle");
              return (Criteria) this;
          }
  
          public Criteria andConversationTitleBetween(String value1, String value2) {
              addCriterion("conversation_title between", value1, value2, "conversationTitle");
              return (Criteria) this;
          }
  
          public Criteria andConversationTitleNotBetween(String value1, String value2) {
              addCriterion("conversation_title not between", value1, value2, "conversationTitle");
              return (Criteria) this;
          }
  
          public Criteria andIsContentHelpIsNull() {
              addCriterion("is_content_help is null");
              return (Criteria) this;
          }
  
          public Criteria andIsContentHelpIsNotNull() {
              addCriterion("is_content_help is not null");
              return (Criteria) this;
          }
  
          public Criteria andIsContentHelpEqualTo(Integer value) {
              addCriterion("is_content_help =", value, "isContentHelp");
              return (Criteria) this;
          }
  
          public Criteria andIsContentHelpNotEqualTo(Integer value) {
              addCriterion("is_content_help <>", value, "isContentHelp");
              return (Criteria) this;
          }
  
          public Criteria andIsContentHelpGreaterThan(Integer value) {
              addCriterion("is_content_help >", value, "isContentHelp");
              return (Criteria) this;
          }
  
          public Criteria andIsContentHelpGreaterThanOrEqualTo(Integer value) {
              addCriterion("is_content_help >=", value, "isContentHelp");
              return (Criteria) this;
          }
  
          public Criteria andIsContentHelpLessThan(Integer value) {
              addCriterion("is_content_help <", value, "isContentHelp");
              return (Criteria) this;
          }
  
          public Criteria andIsContentHelpLessThanOrEqualTo(Integer value) {
              addCriterion("is_content_help <=", value, "isContentHelp");
              return (Criteria) this;
          }
  
          public Criteria andIsContentHelpIn(List<Integer> values) {
              addCriterion("is_content_help in", values, "isContentHelp");
              return (Criteria) this;
          }
  
          public Criteria andIsContentHelpNotIn(List<Integer> values) {
              addCriterion("is_content_help not in", values, "isContentHelp");
              return (Criteria) this;
          }
  
          public Criteria andIsContentHelpBetween(Integer value1, Integer value2) {
              addCriterion("is_content_help between", value1, value2, "isContentHelp");
              return (Criteria) this;
          }
  
          public Criteria andIsContentHelpNotBetween(Integer value1, Integer value2) {
              addCriterion("is_content_help not between", value1, value2, "isContentHelp");
              return (Criteria) this;
          }
  
          public Criteria andSendContentIsNull() {
              addCriterion("send_content is null");
              return (Criteria) this;
          }
  
          public Criteria andSendContentIsNotNull() {
              addCriterion("send_content is not null");
              return (Criteria) this;
          }
  
          public Criteria andSendContentEqualTo(String value) {
              addCriterion("send_content =", value, "sendContent");
              return (Criteria) this;
          }
  
          public Criteria andSendContentNotEqualTo(String value) {
              addCriterion("send_content <>", value, "sendContent");
              return (Criteria) this;
          }
  
          public Criteria andSendContentGreaterThan(String value) {
              addCriterion("send_content >", value, "sendContent");
              return (Criteria) this;
          }
  
          public Criteria andSendContentGreaterThanOrEqualTo(String value) {
              addCriterion("send_content >=", value, "sendContent");
              return (Criteria) this;
          }
  
          public Criteria andSendContentLessThan(String value) {
              addCriterion("send_content <", value, "sendContent");
              return (Criteria) this;
          }
  
          public Criteria andSendContentLessThanOrEqualTo(String value) {
              addCriterion("send_content <=", value, "sendContent");
              return (Criteria) this;
          }
  
          public Criteria andSendContentLike(String value) {
              addCriterion("send_content like", value, "sendContent");
              return (Criteria) this;
          }
  
          public Criteria andSendContentNotLike(String value) {
              addCriterion("send_content not like", value, "sendContent");
              return (Criteria) this;
          }
  
          public Criteria andSendContentIn(List<String> values) {
              addCriterion("send_content in", values, "sendContent");
              return (Criteria) this;
          }
  
          public Criteria andSendContentNotIn(List<String> values) {
              addCriterion("send_content not in", values, "sendContent");
              return (Criteria) this;
          }
  
          public Criteria andSendContentBetween(String value1, String value2) {
              addCriterion("send_content between", value1, value2, "sendContent");
              return (Criteria) this;
          }
  
          public Criteria andSendContentNotBetween(String value1, String value2) {
              addCriterion("send_content not between", value1, value2, "sendContent");
              return (Criteria) this;
          }
  
          public Criteria andBackContentIsNull() {
              addCriterion("back_content is null");
              return (Criteria) this;
          }
  
          public Criteria andBackContentIsNotNull() {
              addCriterion("back_content is not null");
              return (Criteria) this;
          }
  
          public Criteria andBackContentEqualTo(String value) {
              addCriterion("back_content =", value, "backContent");
              return (Criteria) this;
          }
  
          public Criteria andBackContentNotEqualTo(String value) {
              addCriterion("back_content <>", value, "backContent");
              return (Criteria) this;
          }
  
          public Criteria andBackContentGreaterThan(String value) {
              addCriterion("back_content >", value, "backContent");
              return (Criteria) this;
          }
  
          public Criteria andBackContentGreaterThanOrEqualTo(String value) {
              addCriterion("back_content >=", value, "backContent");
              return (Criteria) this;
          }
  
          public Criteria andBackContentLessThan(String value) {
              addCriterion("back_content <", value, "backContent");
              return (Criteria) this;
          }
  
          public Criteria andBackContentLessThanOrEqualTo(String value) {
              addCriterion("back_content <=", value, "backContent");
              return (Criteria) this;
          }
  
          public Criteria andBackContentLike(String value) {
              addCriterion("back_content like", value, "backContent");
              return (Criteria) this;
          }
  
          public Criteria andBackContentNotLike(String value) {
              addCriterion("back_content not like", value, "backContent");
              return (Criteria) this;
          }
  
          public Criteria andBackContentIn(List<String> values) {
              addCriterion("back_content in", values, "backContent");
              return (Criteria) this;
          }
  
          public Criteria andBackContentNotIn(List<String> values) {
              addCriterion("back_content not in", values, "backContent");
              return (Criteria) this;
          }
  
          public Criteria andBackContentBetween(String value1, String value2) {
              addCriterion("back_content between", value1, value2, "backContent");
              return (Criteria) this;
          }
  
          public Criteria andBackContentNotBetween(String value1, String value2) {
              addCriterion("back_content not between", value1, value2, "backContent");
              return (Criteria) this;
          }
  
          public Criteria andRateIsNull() {
              addCriterion("rate is null");
              return (Criteria) this;
          }
  
          public Criteria andRateIsNotNull() {
              addCriterion("rate is not null");
              return (Criteria) this;
          }
  
          public Criteria andRateEqualTo(Integer value) {
              addCriterion("rate =", value, "rate");
              return (Criteria) this;
          }
  
          public Criteria andRateNotEqualTo(Integer value) {
              addCriterion("rate <>", value, "rate");
              return (Criteria) this;
          }
  
          public Criteria andRateGreaterThan(Integer value) {
              addCriterion("rate >", value, "rate");
              return (Criteria) this;
          }
  
          public Criteria andRateGreaterThanOrEqualTo(Integer value) {
              addCriterion("rate >=", value, "rate");
              return (Criteria) this;
          }
  
          public Criteria andRateLessThan(Integer value) {
              addCriterion("rate <", value, "rate");
              return (Criteria) this;
          }
  
          public Criteria andRateLessThanOrEqualTo(Integer value) {
              addCriterion("rate <=", value, "rate");
              return (Criteria) this;
          }
  
          public Criteria andRateIn(List<Integer> values) {
              addCriterion("rate in", values, "rate");
              return (Criteria) this;
          }
  
          public Criteria andRateNotIn(List<Integer> values) {
              addCriterion("rate not in", values, "rate");
              return (Criteria) this;
          }
  
          public Criteria andRateBetween(Integer value1, Integer value2) {
              addCriterion("rate between", value1, value2, "rate");
              return (Criteria) this;
          }
  
          public Criteria andRateNotBetween(Integer value1, Integer value2) {
              addCriterion("rate not between", value1, value2, "rate");
              return (Criteria) this;
          }
  
          public Criteria andSuggestIsNull() {
              addCriterion("suggest is null");
              return (Criteria) this;
          }
  
          public Criteria andSuggestIsNotNull() {
              addCriterion("suggest is not null");
              return (Criteria) this;
          }
  
          public Criteria andSuggestEqualTo(String value) {
              addCriterion("suggest =", value, "suggest");
              return (Criteria) this;
          }
  
          public Criteria andSuggestNotEqualTo(String value) {
              addCriterion("suggest <>", value, "suggest");
              return (Criteria) this;
          }
  
          public Criteria andSuggestGreaterThan(String value) {
              addCriterion("suggest >", value, "suggest");
              return (Criteria) this;
          }
  
          public Criteria andSuggestGreaterThanOrEqualTo(String value) {
              addCriterion("suggest >=", value, "suggest");
              return (Criteria) this;
          }
  
          public Criteria andSuggestLessThan(String value) {
              addCriterion("suggest <", value, "suggest");
              return (Criteria) this;
          }
  
          public Criteria andSuggestLessThanOrEqualTo(String value) {
              addCriterion("suggest <=", value, "suggest");
              return (Criteria) this;
          }
  
          public Criteria andSuggestLike(String value) {
              addCriterion("suggest like", value, "suggest");
              return (Criteria) this;
          }
  
          public Criteria andSuggestNotLike(String value) {
              addCriterion("suggest not like", value, "suggest");
              return (Criteria) this;
          }
  
          public Criteria andSuggestIn(List<String> values) {
              addCriterion("suggest in", values, "suggest");
              return (Criteria) this;
          }
  
          public Criteria andSuggestNotIn(List<String> values) {
              addCriterion("suggest not in", values, "suggest");
              return (Criteria) this;
          }
  
          public Criteria andSuggestBetween(String value1, String value2) {
              addCriterion("suggest between", value1, value2, "suggest");
              return (Criteria) this;
          }
  
          public Criteria andSuggestNotBetween(String value1, String value2) {
              addCriterion("suggest not between", value1, value2, "suggest");
              return (Criteria) this;
          }
  
          public Criteria andPatternIdIsNull() {
              addCriterion("pattern_id is null");
              return (Criteria) this;
          }
  
          public Criteria andPatternIdIsNotNull() {
              addCriterion("pattern_id is not null");
              return (Criteria) this;
          }
  
          public Criteria andPatternIdEqualTo(Long value) {
              addCriterion("pattern_id =", value, "patternId");
              return (Criteria) this;
          }
  
          public Criteria andPatternIdNotEqualTo(Long value) {
              addCriterion("pattern_id <>", value, "patternId");
              return (Criteria) this;
          }
  
          public Criteria andPatternIdGreaterThan(Long value) {
              addCriterion("pattern_id >", value, "patternId");
              return (Criteria) this;
          }
  
          public Criteria andPatternIdGreaterThanOrEqualTo(Long value) {
              addCriterion("pattern_id >=", value, "patternId");
              return (Criteria) this;
          }
  
          public Criteria andPatternIdLessThan(Long value) {
              addCriterion("pattern_id <", value, "patternId");
              return (Criteria) this;
          }
  
          public Criteria andPatternIdLessThanOrEqualTo(Long value) {
              addCriterion("pattern_id <=", value, "patternId");
              return (Criteria) this;
          }
  
          public Criteria andPatternIdIn(List<Long> values) {
              addCriterion("pattern_id in", values, "patternId");
              return (Criteria) this;
          }
  
          public Criteria andPatternIdNotIn(List<Long> values) {
              addCriterion("pattern_id not in", values, "patternId");
              return (Criteria) this;
          }
  
          public Criteria andPatternIdBetween(Long value1, Long value2) {
              addCriterion("pattern_id between", value1, value2, "patternId");
              return (Criteria) this;
          }
  
          public Criteria andPatternIdNotBetween(Long value1, Long value2) {
              addCriterion("pattern_id not between", value1, value2, "patternId");
              return (Criteria) this;
          }
  
          public Criteria andServiceIdIsNull() {
              addCriterion("service_id is null");
              return (Criteria) this;
          }
  
          public Criteria andServiceIdIsNotNull() {
              addCriterion("service_id is not null");
              return (Criteria) this;
          }
  
          public Criteria andServiceIdEqualTo(Long value) {
              addCriterion("service_id =", value, "serviceId");
              return (Criteria) this;
          }
  
          public Criteria andServiceIdNotEqualTo(Long value) {
              addCriterion("service_id <>", value, "serviceId");
              return (Criteria) this;
          }
  
          public Criteria andServiceIdGreaterThan(Long value) {
              addCriterion("service_id >", value, "serviceId");
              return (Criteria) this;
          }
  
          public Criteria andServiceIdGreaterThanOrEqualTo(Long value) {
              addCriterion("service_id >=", value, "serviceId");
              return (Criteria) this;
          }
  
          public Criteria andServiceIdLessThan(Long value) {
              addCriterion("service_id <", value, "serviceId");
              return (Criteria) this;
          }
  
          public Criteria andServiceIdLessThanOrEqualTo(Long value) {
              addCriterion("service_id <=", value, "serviceId");
              return (Criteria) this;
          }
  
          public Criteria andServiceIdIn(List<Long> values) {
              addCriterion("service_id in", values, "serviceId");
              return (Criteria) this;
          }
  
          public Criteria andServiceIdNotIn(List<Long> values) {
              addCriterion("service_id not in", values, "serviceId");
              return (Criteria) this;
          }
  
          public Criteria andServiceIdBetween(Long value1, Long value2) {
              addCriterion("service_id between", value1, value2, "serviceId");
              return (Criteria) this;
          }
  
          public Criteria andServiceIdNotBetween(Long value1, Long value2) {
              addCriterion("service_id not between", value1, value2, "serviceId");
              return (Criteria) this;
          }
  
          public Criteria andFeedbackIdIsNull() {
              addCriterion("feedback_id is null");
              return (Criteria) this;
          }
  
          public Criteria andFeedbackIdIsNotNull() {
              addCriterion("feedback_id is not null");
              return (Criteria) this;
          }
  
          public Criteria andFeedbackIdEqualTo(String value) {
              addCriterion("feedback_id =", value, "feedbackId");
              return (Criteria) this;
          }
  
          public Criteria andFeedbackIdNotEqualTo(String value) {
              addCriterion("feedback_id <>", value, "feedbackId");
              return (Criteria) this;
          }
  
          public Criteria andFeedbackIdGreaterThan(String value) {
              addCriterion("feedback_id >", value, "feedbackId");
              return (Criteria) this;
          }
  
          public Criteria andFeedbackIdGreaterThanOrEqualTo(String value) {
              addCriterion("feedback_id >=", value, "feedbackId");
              return (Criteria) this;
          }
  
          public Criteria andFeedbackIdLessThan(String value) {
              addCriterion("feedback_id <", value, "feedbackId");
              return (Criteria) this;
          }
  
          public Criteria andFeedbackIdLessThanOrEqualTo(String value) {
              addCriterion("feedback_id <=", value, "feedbackId");
              return (Criteria) this;
          }
  
          public Criteria andFeedbackIdLike(String value) {
              addCriterion("feedback_id like", value, "feedbackId");
              return (Criteria) this;
          }
  
          public Criteria andFeedbackIdNotLike(String value) {
              addCriterion("feedback_id not like", value, "feedbackId");
              return (Criteria) this;
          }
  
          public Criteria andFeedbackIdIn(List<String> values) {
              addCriterion("feedback_id in", values, "feedbackId");
              return (Criteria) this;
          }
  
          public Criteria andFeedbackIdNotIn(List<String> values) {
              addCriterion("feedback_id not in", values, "feedbackId");
              return (Criteria) this;
          }
  
          public Criteria andFeedbackIdBetween(String value1, String value2) {
              addCriterion("feedback_id between", value1, value2, "feedbackId");
              return (Criteria) this;
          }
  
          public Criteria andFeedbackIdNotBetween(String value1, String value2) {
              addCriterion("feedback_id not between", value1, value2, "feedbackId");
              return (Criteria) this;
          }
  
          public Criteria andFeedbackEmpidIsNull() {
              addCriterion("feedback_empid is null");
              return (Criteria) this;
          }
  
          public Criteria andFeedbackEmpidIsNotNull() {
              addCriterion("feedback_empid is not null");
              return (Criteria) this;
          }
  
          public Criteria andFeedbackEmpidEqualTo(String value) {
              addCriterion("feedback_empid =", value, "feedbackEmpid");
              return (Criteria) this;
          }
  
          public Criteria andFeedbackEmpidNotEqualTo(String value) {
              addCriterion("feedback_empid <>", value, "feedbackEmpid");
              return (Criteria) this;
          }
  
          public Criteria andFeedbackEmpidGreaterThan(String value) {
              addCriterion("feedback_empid >", value, "feedbackEmpid");
              return (Criteria) this;
          }
  
          public Criteria andFeedbackEmpidGreaterThanOrEqualTo(String value) {
              addCriterion("feedback_empid >=", value, "feedbackEmpid");
              return (Criteria) this;
          }
  
          public Criteria andFeedbackEmpidLessThan(String value) {
              addCriterion("feedback_empid <", value, "feedbackEmpid");
              return (Criteria) this;
          }
  
          public Criteria andFeedbackEmpidLessThanOrEqualTo(String value) {
              addCriterion("feedback_empid <=", value, "feedbackEmpid");
              return (Criteria) this;
          }
  
          public Criteria andFeedbackEmpidLike(String value) {
              addCriterion("feedback_empid like", value, "feedbackEmpid");
              return (Criteria) this;
          }
  
          public Criteria andFeedbackEmpidNotLike(String value) {
              addCriterion("feedback_empid not like", value, "feedbackEmpid");
              return (Criteria) this;
          }
  
          public Criteria andFeedbackEmpidIn(List<String> values) {
              addCriterion("feedback_empid in", values, "feedbackEmpid");
              return (Criteria) this;
          }
  
          public Criteria andFeedbackEmpidNotIn(List<String> values) {
              addCriterion("feedback_empid not in", values, "feedbackEmpid");
              return (Criteria) this;
          }
  
          public Criteria andFeedbackEmpidBetween(String value1, String value2) {
              addCriterion("feedback_empid between", value1, value2, "feedbackEmpid");
              return (Criteria) this;
          }
  
          public Criteria andFeedbackEmpidNotBetween(String value1, String value2) {
              addCriterion("feedback_empid not between", value1, value2, "feedbackEmpid");
              return (Criteria) this;
          }
  
          public Criteria andConversationIdIsNull() {
              addCriterion("conversation_id is null");
              return (Criteria) this;
          }
  
          public Criteria andConversationIdIsNotNull() {
              addCriterion("conversation_id is not null");
              return (Criteria) this;
          }
  
          public Criteria andConversationIdEqualTo(String value) {
              addCriterion("conversation_id =", value, "conversationId");
              return (Criteria) this;
          }
  
          public Criteria andConversationIdNotEqualTo(String value) {
              addCriterion("conversation_id <>", value, "conversationId");
              return (Criteria) this;
          }
  
          public Criteria andConversationIdGreaterThan(String value) {
              addCriterion("conversation_id >", value, "conversationId");
              return (Criteria) this;
          }
  
          public Criteria andConversationIdGreaterThanOrEqualTo(String value) {
              addCriterion("conversation_id >=", value, "conversationId");
              return (Criteria) this;
          }
  
          public Criteria andConversationIdLessThan(String value) {
              addCriterion("conversation_id <", value, "conversationId");
              return (Criteria) this;
          }
  
          public Criteria andConversationIdLessThanOrEqualTo(String value) {
              addCriterion("conversation_id <=", value, "conversationId");
              return (Criteria) this;
          }
  
          public Criteria andConversationIdLike(String value) {
              addCriterion("conversation_id like", value, "conversationId");
              return (Criteria) this;
          }
  
          public Criteria andConversationIdNotLike(String value) {
              addCriterion("conversation_id not like", value, "conversationId");
              return (Criteria) this;
          }
  
          public Criteria andConversationIdIn(List<String> values) {
              addCriterion("conversation_id in", values, "conversationId");
              return (Criteria) this;
          }
  
          public Criteria andConversationIdNotIn(List<String> values) {
              addCriterion("conversation_id not in", values, "conversationId");
              return (Criteria) this;
          }
  
          public Criteria andConversationIdBetween(String value1, String value2) {
              addCriterion("conversation_id between", value1, value2, "conversationId");
              return (Criteria) this;
          }
  
          public Criteria andConversationIdNotBetween(String value1, String value2) {
              addCriterion("conversation_id not between", value1, value2, "conversationId");
              return (Criteria) this;
          }
  
          public Criteria andCategoryLikeInsensitive(String value) {
              addCriterion("upper(category) like", value.toUpperCase(), "category");
              return (Criteria) this;
          }
  
          public Criteria andSenderNickLikeInsensitive(String value) {
              addCriterion("upper(sender_nick) like", value.toUpperCase(), "senderNick");
              return (Criteria) this;
          }
  
          public Criteria andSenderIdLikeInsensitive(String value) {
              addCriterion("upper(sender_id) like", value.toUpperCase(), "senderId");
              return (Criteria) this;
          }
  
          public Criteria andSenderEmpidLikeInsensitive(String value) {
              addCriterion("upper(sender_empid) like", value.toUpperCase(), "senderEmpid");
              return (Criteria) this;
          }
  
          public Criteria andConversationTitleLikeInsensitive(String value) {
              addCriterion("upper(conversation_title) like", value.toUpperCase(), "conversationTitle");
              return (Criteria) this;
          }
  
          public Criteria andSendContentLikeInsensitive(String value) {
              addCriterion("upper(send_content) like", value.toUpperCase(), "sendContent");
              return (Criteria) this;
          }
  
          public Criteria andBackContentLikeInsensitive(String value) {
              addCriterion("upper(back_content) like", value.toUpperCase(), "backContent");
              return (Criteria) this;
          }
  
          public Criteria andSuggestLikeInsensitive(String value) {
              addCriterion("upper(suggest) like", value.toUpperCase(), "suggest");
              return (Criteria) this;
          }
  
          public Criteria andFeedbackIdLikeInsensitive(String value) {
              addCriterion("upper(feedback_id) like", value.toUpperCase(), "feedbackId");
              return (Criteria) this;
          }
  
          public Criteria andFeedbackEmpidLikeInsensitive(String value) {
              addCriterion("upper(feedback_empid) like", value.toUpperCase(), "feedbackEmpid");
              return (Criteria) this;
          }
  
          public Criteria andConversationIdLikeInsensitive(String value) {
              addCriterion("upper(conversation_id) like", value.toUpperCase(), "conversationId");
              return (Criteria) this;
          }
      }
  
      public static class Criteria extends GeneratedCriteria {
  
          protected Criteria() {
              super();
          }
      }
  
      public static class Criterion {
          private String condition;
  
          private Object value;
  
          private Object secondValue;
  
          private boolean noValue;
  
          private boolean singleValue;
  
          private boolean betweenValue;
  
          private boolean listValue;
  
          private String typeHandler;
  
          public String getCondition() {
              return condition;
          }
  
          public Object getValue() {
              return value;
          }
  
          public Object getSecondValue() {
              return secondValue;
          }
  
          public boolean isNoValue() {
              return noValue;
          }
  
          public boolean isSingleValue() {
              return singleValue;
          }
  
          public boolean isBetweenValue() {
              return betweenValue;
          }
  
          public boolean isListValue() {
              return listValue;
          }
  
          public String getTypeHandler() {
              return typeHandler;
          }
  
          protected Criterion(String condition) {
              super();
              this.condition = condition;
              this.typeHandler = null;
              this.noValue = true;
          }
  
          protected Criterion(String condition, Object value, String typeHandler) {
              super();
              this.condition = condition;
              this.value = value;
              this.typeHandler = typeHandler;
              if (value instanceof List<?>) {
                  this.listValue = true;
              } else {
                  this.singleValue = true;
              }
          }
  
          protected Criterion(String condition, Object value) {
              this(condition, value, null);
          }
  
          protected Criterion(String condition, Object value, Object secondValue, String typeHandler) {
              super();
              this.condition = condition;
              this.value = value;
              this.secondValue = secondValue;
              this.typeHandler = typeHandler;
              this.betweenValue = true;
          }
  
          protected Criterion(String condition, Object value, Object secondValue) {
              this(condition, value, secondValue, null);
          }
      }
  }