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Understanding the ActiveMQ Wildcard Syntax
ActiveMQ uses a specific syntax for representing wildcards in security settings, address settings and when creating consumers.
The syntax is similar to that used by AMQP.
An ActiveMQ wildcard expression contains words delimited by the character
'.' (full stop).
The special characters '#' and '*' also have special meaning and can
take the place of a word.
The character '#' means 'match any sequence of zero or more words'.
The character '*' means 'match a single word'.
So the wildcard 'news.europe.#' would match 'news.europe', 'news.europe.sport', 'news.europe.politics', and 'news.europe.politics.regional' but would not match 'news.usa', 'news.usa.sport' nor 'entertainment'.
The wildcard 'news.*' would match 'news.europe', but not 'news.europe.sport'.
The wildcard 'news.*.sport' would match 'news.europe.sport' and also 'news.usa.sport', but not 'news.europe.politics'.