Monday Nov 26, 2007

Java CAPS 5.1.3 Correlation Example 3 - ELS Static Counted and Timed Correlation

This example implements a part of the ELS functionality dealing with linking a number of related messages until all are collected or a time period elapses, whichever is the soone, a counted and timed correlation pattern, or an aggregator pattern with a timer.

Unlike the implementation from Example 2, on which it is heavily based, this implementation will correlate a varying number of messages, statically set at design time, or as many as it receives within a given time period expressed as a static duration. Thus the same implementation can be used to correlate 2, 3, 10 or 30 messages, by modifying the value of a single business process attribute, over a statically configured time period. By obtaining the value of the business process attribute which controls the message count or which controls duration, from the environment or the initial message, one will change the static implementation into a dynamic counted and timed correlation solution.

CorrelationExample_03_CountedAndTimed.pdf discusses the solution and illustrates key points that vary between Example 2 and this example.

CountedAndTimes.zip is the Java CAPS 5.1.3 project export that implements the solutuin.

Sunday Nov 25, 2007

Java CAPS 5.1.3 Correlation Example 2 - ELS Static Counted

This example implements a part of the ELS functionality dealing with linking a number of related messages, a counted correlation pattern, or an aggregator pattern.

Unlike the simple implementation from Example 1, this implementation will correlate a varying number of messages, statically set at design time. Thus the same implementation can be used to correlate 2, 3, 10 or 30 messages, by modifying the value of a single business process attribute. By obtaining the value of the business process attribute, which controls the message count, from the environment or the initial message, one will change the static implementation into a dynamic counted correlation solution.

CorrelationExample_02_StaticCounted.pdf discusses the example and addresses key points in its implementation.

CountedStatic.zip is a Java CAPS 5.1.3 project export that implements the correlation in this example.

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In this Blog I post abstracts of articles / writeups / notes on various aspects of Java CAPS and SOA Suite including solutions, discussions and screencasts. The links to the referenced material are included in the bodies of the abstracts.

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