org.apache.beam.sdk.io.gcp.spanner.changestreams

Class TimestampConverter

java.lang.Object

org.apache.beam.sdk.io.gcp.spanner.changestreams.TimestampConverter

public class TimestampConverter
extends java.lang.Object

Util class to manage timestamp conversions.

Field Summary

Fields

Modifier and Type	Field and Description
static long	MAX_MICROS The number of microseconds in a Timestamp.MAX_VALUE.

Constructor Summary

Constructors

Constructor and Description
TimestampConverter()

Method Summary

Modifier and Type	Method and Description
static com.google.cloud.Timestamp	timestampFromMillis(long millis) Creates a Timestamp from a number of milliseconds.
static long	timestampToMicros(com.google.cloud.Timestamp timestamp) Converts a Timestamp to its number of microseconds.
static com.google.cloud.Timestamp	truncateNanos(com.google.cloud.Timestamp timestamp) Zeroes nanoseconds from the given Timestamp (precision is lost).

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

MAX_MICROS

public static final long MAX_MICROS

The number of microseconds in a Timestamp.MAX_VALUE.

Constructor Detail

TimestampConverter

public TimestampConverter()

Method Detail

timestampToMicros

public static long timestampToMicros(com.google.cloud.Timestamp timestamp)

Converts a Timestamp to its number of microseconds. Note there is precision loss here.

Parameters:

timestamp - the timestamp to be converted

Returns:

the number of microseconds in the given timestamp

timestampFromMillis

public static com.google.cloud.Timestamp timestampFromMillis(long millis)

Creates a Timestamp from a number of milliseconds. Note that microseconds and nanoseconds will always be zeroed here.

Parameters:

millis - the number of milliseconds

Returns:

a timestamp with the given milliseconds

truncateNanos

public static com.google.cloud.Timestamp truncateNanos(com.google.cloud.Timestamp timestamp)

Zeroes nanoseconds from the given Timestamp (precision is lost). The timestamp returned will be precise up to microseconds only.

Parameters:

timestamp - the timestamp to be truncated

Returns:

the timestamp with microseconds precision