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

    sb.append("tableName:");
    if (this.tableName == null) {
      sb.append("null");
    } else {
      sb.append(this.tableName);
    }
    first = false;
    if (isSetColumns()) {
      if (!first) sb.append(", ");
      sb.append("columns:");
      if (this.columns == null) {
        sb.append("null");
      } else {
        sb.append(this.columns);
      }
      first = false;
    }
    if (isSetAttributes()) {
      if (!first) sb.append(", ");
      sb.append("attributes:");
      if (this.attributes == null) {
        sb.append("null");
      } else {
        sb.append(this.attributes);
      }
      first = false;
    }
    if (isSetDurability()) {
      if (!first) sb.append(", ");
      sb.append("durability:");
      if (this.durability == null) {
        sb.append("null");
      } else {
        sb.append(this.durability);
      }
      first = false;
    }
    sb.append(")");
    return sb.toString();
  }
Returns true if field corresponding to fieldID is set (has been assigned a value) and false otherwise
hbase-thrift/src/main/java/org/apache/hadoop/hbase/thrift2/generated/TTableDescriptor.java