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

Class TimestampEncoding

java.lang.Object

org.apache.avro.reflect.CustomEncoding<com.google.cloud.Timestamp>

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

public class TimestampEncoding
extends CustomEncoding<com.google.cloud.Timestamp>

This encoder/decoder writes a com.google.cloud.Timestamp object as a pair of long and int to avro and reads a Timestamp object from the same pair. The long stores the number of seconds since January 1, 1970, 00:00:00 UTC. A negative value is the number of seconds before January 1, 1970, 00:00:00 UTC. The int stores the fractional seconds components, in the range 0..999999999.

Field Summary

Fields inherited from class org.apache.avro.reflect.CustomEncoding

schema

Constructor Summary

Constructors

Constructor and Description
TimestampEncoding()

Method Summary

Modifier and Type	Method and Description
protected com.google.cloud.Timestamp	read(java.lang.Object reuse, Decoder in) Deserializes a Timestamp from the given Decoder.
protected void	write(java.lang.Object datum, Encoder out) Serializes a Timestamp received as datum to the output encoder out.

Methods inherited from class org.apache.avro.reflect.CustomEncoding

getSchema

Methods inherited from class java.lang.Object

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

Constructor Detail

TimestampEncoding

public TimestampEncoding()

Method Detail

write

protected void write(java.lang.Object datum,
                     Encoder out)
              throws java.io.IOException

Serializes a Timestamp received as datum to the output encoder out. A null timestamp is serialized with negative fields (seconds and nanos).

Specified by:

write in class CustomEncoding<com.google.cloud.Timestamp>

Parameters:

datum - the Timestamp to be encoded

out - the Encoder where the timestamp should be serialized to

Throws:

java.io.IOException - if it was not possible to write the timestamp into the provided encoder

read

protected com.google.cloud.Timestamp read(java.lang.Object reuse,
                                          Decoder in)
                                   throws java.io.IOException

Deserializes a Timestamp from the given Decoder.

Specified by:

read in class CustomEncoding<com.google.cloud.Timestamp>

Parameters:

reuse - ignored

in - the Decoder to read the timestamp fields from

Returns:

null if the fields are negative or an instance of a Timestamp instead.

Throws:

java.io.IOException - if it was not possible to read the timestamp from the provided decoder