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An XStreams adapter for CEP

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What is Oracle CEP?

• A lightweight application server for low latency, high throughput event processing applications• Programming model: Event processing network (Java + CQL)• CQL: Highly expressive Query processing language with

temporal semantics

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Use Cases

• Algorithmic Trading• Telcos • Surveillance• RFID (Manufacturing, Retail)• BAM

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Demo

• The Linear Road Benchmark • http://www.cs.brandeis.edu/~linearroad/• Compare performance characteristics of Streaming Data

Mgmt. Systems relative to each other and relative to alternative systems like Relational Databases.

• Models a variable tolling system on an expressway based on congestion, proximity to accidents, etc.

• Each car equipped with a sensor that identifies the vehicle’s position, speed every 30 seconds.

• Sensor data used to generate statistics about traffic conditions on every segment of every expressway for every minute.

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Event Processing Network

XStreamsAdapter

Processor

HTTPAdapter

XStreams

Queries

Queries

<<Source>> <<Sink>>

Event Processing Network (EPN)

OSGI Bundle/Spring Application Context

HTTP

Database

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Future work

• Productize XStreams adapter (OOTB, configurable)• JDBC thin client support• Object type support

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Questions?