Preface
RulePoint
RulePoint Concepts
- RulePoint Concepts Overview
- Understanding RulePoint Entities
Using RulePoint
RulePoint Objects
- RulePoint Objects Overview
- State of RulePoint Objects
Working with Topics
Working with Connections
Working with Sources
Working with Responders
Working with Responses
Working with Watchlists
Working with Analytics
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- Deleting an Analytic
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- Predefined Analytics
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- Predefined Operators
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- Using the distinct, group by, and ummatched Filters
DRQL
Working with Rules
Working with Alerts
Setting Access Controls
Troubleshooting RulePoint Issues
Connecting to an Ultra Messaging Application
Creating an Ultra Messaging JMS Source

User Guide

6.1.2
- 6.2
- 6.1

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Referencing One Property Value in an Event Set

When using event sets with multiple values for a single property, you can display the property value for one of the events in the set using the following syntax:

${[topicProperty]([n])}

${[topicAlias].[topicProperty]([n])}

${[topicName].[topicProperty]([n])}

Here, topicAlias is the name of the alias that you assign to a topic, such as s for stock. topicName is the name of the topic, topicProperty is the name of the event property, and n is the number of the event in the set for which you want output.

Rules maintain the order of events from the latest to the oldest.

For example, the following rule specifies that the body of the response which will display the three prices of the XYZ stock event s matched by this rule:

WHEN 3 stock s WITH symbol = "XYZ" AND price < 90 THEN EmailBrokerResponse WITH to="broker@company.com", body="XYZ is trading at the following prices. One price is ${s.price(1)}, another price is ${s.price(2)}, and the final price is ${s.price(3)}."

Here, ${s.price(1)},${s.symbol(1)} is the value of latest event and ${s.price(3)},${s.symbol(3)} has the value of the oldest event.

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User Guide

User Guide

Referencing One Property Value in an Event Set

Referencing One Property Value in an Event Set