ConstraintDescriptor.java

package hudson.plugins.performance.descriptors;

import hudson.DescriptorExtensionList;
import hudson.model.Descriptor;
import hudson.plugins.performance.constraints.AbstractConstraint;
import jenkins.model.Jenkins;

public abstract class ConstraintDescriptor extends Descriptor<AbstractConstraint> {

    public final String getId() {
        return getClass().getName();
    }

    public static DescriptorExtensionList<AbstractConstraint, ConstraintDescriptor> all() {
        return Jenkins.getInstance().getDescriptorList(AbstractConstraint.class);
    }

    public static ConstraintDescriptor getById(String id) {
        for (ConstraintDescriptor d : all())
            if (d.getId().equals(id))
                return d;
        return null;
    }
}