Hazelcast IMDG Standard Support has expired. Extended support for version 4.1 ends in April 2024. Extended support for version 4.2 ends in September 2024.

We recommend that you try Hazelcast Platform.

In Hazelcast Platform, we’ve combined the in-memory storage of IMDG with the stream processing power of Jet. Find out more in our Platform documentation.

The following topics are a good place to start:

Configuration Pattern Matcher

You can give a custom strategy to match an item name to a configuration pattern. By default Hazelcast uses a simplified wildcard matching. See Using Wildcards section for this. A custom configuration pattern matcher can be given by using either member or client config objects, as shown below:

// Setting a custom config pattern matcher via member config object
Config config = new Config();
config.setConfigPatternMatcher(new ExampleConfigPatternMatcher());

And the following is an example pattern matcher:

class ExampleConfigPatternMatcher extends MatchingPointConfigPatternMatcher {

    public String matches(Iterable<String> configPatterns, String itemName) throws InvalidConfigurationException {
        String matches = super.matches(configPatterns, itemName);
        if (matches == null) throw new InvalidConfigurationException("No config found for " + itemName);
        return matches;