public static TimeRange allTime() {
    return ALL_TIME;
  }
Represents an interval of version timestamps. Presumes timestamps between
{@link #INITIAL_MIN_TIMESTAMP} and {@link #INITIAL_MAX_TIMESTAMP} only. Gets freaked out if
passed a timestamp that is < {@link #INITIAL_MIN_TIMESTAMP},
<p/>
Evaluated according to minStamp &lt;= timestamp &lt; maxStamp or [minStamp,maxStamp) in interval
notation.
<p/>
Can be returned and read by clients. Should not be directly created by clients. Thus, all
constructors are purposely @InterfaceAudience.Private.
<p/>
Immutable. Thread-safe.
hbase-common/src/main/java/org/apache/hadoop/hbase/io/TimeRange.java