Apache NiFi Expression Language guidePDF version

toLower

Description: This function converts the Subject into an all lower-case String. Said another way, it replaces any uppercase letter with the lowercase equivalent.

Subject Type: String

Arguments: No arguments

Return Type: String

Examples: If the "filename" attribute is "ABC123.TXT", then the Expression ${filename:toLower()} will return "abc123.txt"

We want your opinion

How can we improve this page?

What kind of feedback do you have?