Input field-based predicate expression for LiveView Delete adapter
Article ID: KB0079221
Updated On:
| Products | Versions |
|---|---|
| TIBCO Streaming | 7.x, 10.x |
Description
I would like to use the LiveView Delete adapter to delete rows based on a predicate expression, where the expression is built using values from certain input fields. For example, the schema sent to the LV Delete adapter is:
TableName (string)
Predicate (string)
category (string)
How can I configure the predicate expression to be..
category=<the value of the 'category' input field>
?
TableName (string)
Predicate (string)
category (string)
How can I configure the predicate expression to be..
category=<the value of the 'category' input field>
?
Issue/Introduction
Input field-based predicate expression for LiveView Delete adapter
Resolution
Since the LiveView Delete adapter only knows to look for the 'TableName' and 'Predicate' input fields, you must construct the predicate in an upstream Map operator. In the Map operator's "Additional Expressions" tab, set..
Predicate = "category='"+input1.category+"'"
Predicate = "category='"+input1.category+"'"
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