@Override
  public java.lang.String toString() {
    java.lang.StringBuilder sb = new java.lang.StringBuilder("ColumnInfo(");
    boolean first = true;

    if (isSetId()) {
      sb.append("id:");
      sb.append(this.id);
      first = false;
    }
    if (!first) sb.append(", ");
    sb.append("name:");
    if (this.name == null) {
      sb.append("null");
    } else {
      sb.append(this.name);
    }
    first = false;
    if (isSetType()) {
      if (!first) sb.append(", ");
      sb.append("type:");
      if (this.type == null) {
        sb.append("null");
      } else {
        sb.append(this.type);
      }
      first = false;
    }
    if (isSetDoc()) {
      if (!first) sb.append(", ");
      sb.append("doc:");
      if (this.doc == null) {
        sb.append("null");
      } else {
        sb.append(this.doc);
      }
      first = false;
    }
    if (!first) sb.append(", ");
    sb.append("isOptional:");
    sb.append(this.isOptional);
    first = false;
    sb.append(")");
    return sb.toString();
  }
Returns true if field corresponding to fieldID is set (has been assigned a value) and false otherwise
amoro-common/src/main/gen-java/org/apache/amoro/api/ColumnInfo.java