streamsx.eventstore 2.3.1

IBM Streams Event Store integration

Overview

Provides a function to insert IBM Streams tuple data into a table in IBM Db2 Event Store.

IBM Db2 Event Store is an in-memory database designed to rapidly ingest and analyze streamed data in event-driven applications. It provides the fabric for fast data with its ability to process massive volume of events in real-time, coupled with optimization for streamed data performance for advanced analytics and actionable insights.

This package exposes the com.ibm.streamsx.eventstore toolkit as Python methods.

Supported versions:

• Db2 Event Store 1.x: streamsx.eventstore version 1.x

• Db2 Event Store 2.x: streamsx.eventstore version 2.x

Sample

A simple example of a Streams application inserting rows to a table in a Db2 Event Store database:

from streamsx.topology.topology import Topology
from streamsx.topology.schema import CommonSchema, StreamSchema
from streamsx.topology.context import submit
from streamsx.topology.context import ContextTypes
import streamsx.spl.toolkit
import streamsx.eventstore as es

topo = Topology('EventStoreSample')

# provide connection endpoint information
es_connection = 'HostIP:Port1;HostIP:Port2'

# generate sample tuples with the schema of the target table
s = topo.source([1,2,3,4,5,6,7,8,9])
schema=StreamSchema('tuple<int32 id, rstring name>').as_tuple()
s = s.map(lambda x : (x,'X'+str(x*2)), schema=schema)

# insert tuple data into table as rows
res = es.insert(s, connection=es_connection, database='TESTDB', table='SampleTable', primary_key='id', partitioning_key='id')

submit (ContextTypes.DISTRIBUTED, topo)
# The Streams job is kept running.

Documentation

• streamsx.eventstore package documentation