org.jvnet.hk2.component.Constants Maven / Gradle / Ivy
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package org.jvnet.hk2.component;
/**
* Common metadata properties used by the inhabitant / habitat.
*
* @author Jeff Trent
*
* @since 3.1
*/
public class Constants {
/**
* Represents class / contract type name(s). Only used by Trackers
* at present.
*/
public static final String OBJECTCLASS = "objectclass";
/**
* Service property identifying a service's ranking number.
*
*
* The service ranking is used by the Framework to determine the natural
* order of services (when used specifically with the Tracker).
*
*
* The default ranking is zero (0). A service with a ranking of
* Integer.MAX_VALUE is very likely to be returned as the
* default service, whereas a service with a ranking of
* Integer.MIN_VALUE is very unlikely to be returned.
*
*
* If the supplied property value is not of type Integer, it is
* deemed to have a ranking value of zero.
*
*
* Hk2 manages its meta information as String, but converts to Integer
* for comparisons.
*/
public static final String SERVICE_RANKING = "service.ranking";
/**
* Qualifier (annotation names) used to describe the service.
*/
public static final String QUALIFIER = "qualifier";
}