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
- Analytics Overview
- Analytic Types
- Creating an Analytic
- Copying an Analytic
- Editing an Analytic
- Deleting an Analytic
- Viewing Related Objects
- Predefined Analytics
  - abs
  - average
  - ceil
  - charat
  - clean
  - compareto
  - concat
  - confidence
  - correlation
  - count
  - current
  - date
  - datedifference
  - endswith
  - even
  - floor
  - getcurrentdate
  - getdatefrommillis
  - getdateinmillis
  - geodistance
  - geoinbound
  - geoinsidearea
  - geointersect
  - geooutbound
  - geooutsidearea
  - geopassthru
  - indexof
  - integer
  - isblank
  - isholiday
  - isnum
  - istext
  - isweekday
  - isweekend
  - large
  - list2vars
  - lower
  - max
  - min
  - mod
  - mode
  - mround
  - odd
  - parse
  - past
  - percentile
  - power
  - proper
  - range
  - regex
  - replace
  - round
  - rounddown
  - roundup
  - sign
  - small
  - startswith
  - stdev
  - stringequals
  - stringindexof
  - stringlastindexof
  - stringlength
  - substring
  - sum
  - trim
  - truncate
  - upper
  - xpath
- Predefined Operators
  - contains
  - equalsSet
  - has
  - in
  - match
  - notMatch
  - search
  - unique
  - group by
  - distinct
  - unmatched
- 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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isblank

The isblank analytic verifies if all data are blank.

Syntax

isblank(item1,[item2],…)

The following table describes the required and optional arguments:

Argument	Required Optional	Description
item1	Required	Verifies whether the item is blank.
item2,...	Optional	Verifies whether the items are blank.

Example

when 1 stocktopic s with isblank(s.value) as result  then response with body= “${result}"

The following table describes the result for the event property value that you pass:

Event Property Value	Description	Result
s.value=""	Validates whether the value sent to topic property is null.	true

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User Guide

User Guide

isblank

isblank

Syntax