FAQ

Frequently Asked Questions

How can I reset the bread crumb trail ?

Just implement the SessionAware interface in your action then retrieve the BreadCrumbTrail from the session and rewind the trail to the position -1. For example:

import org.apache.struts2.interceptor.SessionAware;
import xyz.timedrain.arianna.plugin.BreadCrumbInterceptor;
import xyz.timedrain.arianna.plugin.BreadCrumbTrail;

public class RewindAction implements SessionAware {
    private Map<String, Object> session;

    public void setSession(Map session) {
        this.session = session;
    }

    public String execute() {

        // retrieve the bread crumb trail from session
        BreadCrumbTrail trail = (BreadCrumbTrail) session.get(BreadCrumbInterceptor.CRUMB_KEY);

        // rewinding at position -1 has the effect of clearing the entire trail
        trail.rewindAt(-1);

        return "success";
    }
}

Can I change breadcrumb's maximum crumbs at runtime ?

Yes, get the BreadCrumTrail from the session and call the setMaxCrumbs method.