text: package com.example.polls.model.audit;
  
  import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
  import org.springframework.data.annotation.CreatedDate;
  import org.springframework.data.annotation.LastModifiedDate;
  import org.springframework.data.jpa.domain.support.AuditingEntityListener;
  
  import javax.persistence.EntityListeners;
  import javax.persistence.MappedSuperclass;
  import java.io.Serializable;
  import java.time.Instant;
  
  @MappedSuperclass
  @EntityListeners(AuditingEntityListener.class)
  @JsonIgnoreProperties(
          value = {"createdAt", "updatedAt"},
          allowGetters = true
  )
  public abstract class DateAudit implements Serializable {
  
      @CreatedDate
      private Instant createdAt;
  
      @LastModifiedDate
      private Instant updatedAt;
  
      public Instant getCreatedAt() {
          return createdAt;
      }
  
      public void setCreatedAt(Instant createdAt) {
          this.createdAt = createdAt;
      }
  
      public Instant getUpdatedAt() {
          return updatedAt;
      }
  
      public void setUpdatedAt(Instant updatedAt) {
          this.updatedAt = updatedAt;
      }
  
  }
  