Jira/Java - injecting cache manager not working (setter)

[Wiard van Rij]

I'm building a plugin for Jira. I want to add a caching-layer so I wanted to use the

com.atlassian.cache.CacheManager

 I have to inject this via an argument / setter.

Since I'm extending an other class I wanted to inject this via a setter, but for some reason it returns null all the time. It does not go past the setter.

import com.atlassian.cache.Cache;
import com.atlassian.cache.CacheLoader;
import com.atlassian.cache.CacheManager;
import com.atlassian.cache.CacheSettingsBuilder;

public class Foo extends AbstractJiraContextProvider
{
    private CacheManager cacheManager;

    public void setCacheManager(CacheManager cacheManager) {
        //It does not get past this function..
        this.cacheManager = cacheManager;
    }

    @Override
    public Map getContextMap(ApplicationUser user, JiraHelper jiraHelper) {


        cache = this.cacheManager.getCache("bar");

    }
}

I also tried this by doing the following:

public Foo(CacheManager cacheManager) {
    this.cacheManager = cacheManager;
}

After that the plugin does nothing anymore. I do not get errors, but it just gives 0 output.

I used this for documentation: https://developer.atlassian.com/confdev/confluence-plugin-guide/writing-confluence-plugins/accessing-confluence-components-from-plugin-modules

And https://developer.atlassian.com/confdev/development-resources/confluence-developer-faq/how-do-i-cache-data-in-a-plugin#HowdoIcachedatainaplugin?-Instructions

[Ana Retamal · Accepted solution]

Hi Wiard! This looks like a developer question, so my recommendation would be to ask our Developer Community for help. You can find them at community.developer.atlassian.com.

Cheers :)

Ana

[Wiard van Rij]

Thank you Ana :) 

[Wiard van Rij]

For those who are interrested, I moved my question to here: https://community.developer.atlassian.com/t/injecting-cachemanager-not-working-setter/3574