Struct TopicFilter 

pub struct TopicFilter { /* private fields */ }

A set of topic patterns that a subscriber is interested in.

Implementations

impl TopicFilter

pub fn new() -> Self

pub fn from_patterns(patterns: Vec<String>) -> Self

Create a filter from a list of patterns.

pub fn add(&mut self, pattern: String)

Add a pattern to the filter.

pub fn remove(&mut self, pattern: &str)

Remove a pattern from the filter.

pub fn matches(&self, topic: &str) -> bool

Check if a topic matches any pattern in this filter.

pub fn patterns(&self) -> &[String]

Return the list of patterns.

pub fn len(&self) -> usize

Return the number of patterns.

pub fn is_empty(&self) -> bool

Whether the filter has no patterns.

Trait Implementations

impl Clone for TopicFilter

fn clone(&self) -> TopicFilter

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for TopicFilter

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for TopicFilter

fn default() -> TopicFilter

Returns the “default value” for a type.