Creating Hierarchical Topics

Hierarchical topics can be created like any other topic. A topic at a particular level can be created only if its parent exists in the hierarchy. The first node of a hierarchical topic is called the root node of the hierarchy. Some important features with respect to hierarchical topic names are noted below:

Case Insensitive

Topic names are not case sensitive in FioranoMQ. "ACCOUNTS" and "Accounts" are considered the same topic.

Spaces in Names

Topic names can include a 'space' as a character.. For example, "company.fiorano.comment.FioranoMQ is fast" is a valid topic name. Topic names are trimmed before creation. As such, even though spaces are allowed in topic-names, topics that differ only in the number of spaces they incorporate shall be considered to be duplicates. It is therefore recommended that spaces in topic names be used with appropriate caution.

Empty String

No level in the topic hierarchy can include an empty string. A topic name cannot have two simultaneous dots. For example, "company.GE..dept" is an invalid topic name.

Unlimited Length of Topic Names

Topic names can be arbitrary in length. A node in the topic hierarchy can have any number of characters.

Unlimited Depth of Topic Hierarchy

FioranoMQ supports an unlimited depth in the hierarchy tree of a topic. An unlimited number of nodes within a topic can be created.

Wild Card Support

Wildcard characters such as asterisk or (#) cannot be used in topic names for creating hierarchical topics.