/AWS1/CL_KNSSTARTINGPOSITION

The starting position in the data stream from which to start streaming.

CONSTRUCTOR

IMPORTING

Required arguments:

iv_type TYPE /AWS1/KNSSHARDITERATORTYPE /AWS1/KNSSHARDITERATORTYPE

You can set the starting position to one of the following values:

AT_SEQUENCE_NUMBER: Start streaming from the position denoted by the sequence number specified in the SequenceNumber field.

AFTER_SEQUENCE_NUMBER: Start streaming right after the position denoted by the sequence number specified in the SequenceNumber field.

AT_TIMESTAMP: Start streaming from the position denoted by the time stamp specified in the Timestamp field.

TRIM_HORIZON: Start streaming at the last untrimmed record in the shard, which is the oldest data record in the shard.

LATEST: Start streaming just after the most recent record in the shard, so that you always read the most recent data in the shard.

Optional arguments:

iv_sequencenumber TYPE /AWS1/KNSSEQUENCENUMBER /AWS1/KNSSEQUENCENUMBER

The sequence number of the data record in the shard from which to start streaming. To specify a sequence number, set StartingPosition to AT_SEQUENCE_NUMBER or AFTER_SEQUENCE_NUMBER.

iv_timestamp TYPE /AWS1/KNSTIMESTAMP /AWS1/KNSTIMESTAMP

The time stamp of the data record from which to start reading. To specify a time stamp, set StartingPosition to Type AT_TIMESTAMP. A time stamp is the Unix epoch date with precision in milliseconds. For example, 2016-04-04T19:58:46.480-00:00 or 1459799926.480. If a record with this exact time stamp does not exist, records will be streamed from the next (later) record. If the time stamp is older than the current trim horizon, records will be streamed from the oldest untrimmed data record (TRIM_HORIZON).

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Queryable Attributes

Type

You can set the starting position to one of the following values:

AT_SEQUENCE_NUMBER: Start streaming from the position denoted by the sequence number specified in the SequenceNumber field.

AFTER_SEQUENCE_NUMBER: Start streaming right after the position denoted by the sequence number specified in the SequenceNumber field.

AT_TIMESTAMP: Start streaming from the position denoted by the time stamp specified in the Timestamp field.

TRIM_HORIZON: Start streaming at the last untrimmed record in the shard, which is the oldest data record in the shard.

LATEST: Start streaming just after the most recent record in the shard, so that you always read the most recent data in the shard.

Accessible with the following methods

Method	Description
GET_TYPE()	Getter for TYPE, with configurable default
ASK_TYPE()	Getter for TYPE w/ exceptions if field has no value
HAS_TYPE()	Determine if TYPE has a value

SequenceNumber

The sequence number of the data record in the shard from which to start streaming. To specify a sequence number, set StartingPosition to AT_SEQUENCE_NUMBER or AFTER_SEQUENCE_NUMBER.

Accessible with the following methods

Method	Description
GET_SEQUENCENUMBER()	Getter for SEQUENCENUMBER, with configurable default
ASK_SEQUENCENUMBER()	Getter for SEQUENCENUMBER w/ exceptions if field has no valu
HAS_SEQUENCENUMBER()	Determine if SEQUENCENUMBER has a value

Timestamp

The time stamp of the data record from which to start reading. To specify a time stamp, set StartingPosition to Type AT_TIMESTAMP. A time stamp is the Unix epoch date with precision in milliseconds. For example, 2016-04-04T19:58:46.480-00:00 or 1459799926.480. If a record with this exact time stamp does not exist, records will be streamed from the next (later) record. If the time stamp is older than the current trim horizon, records will be streamed from the oldest untrimmed data record (TRIM_HORIZON).

Accessible with the following methods

Method	Description
GET_TIMESTAMP()	Getter for TIMESTAMP, with configurable default
ASK_TIMESTAMP()	Getter for TIMESTAMP w/ exceptions if field has no value
HAS_TIMESTAMP()	Determine if TIMESTAMP has a value