/**
* Copyright (C) 2011 - present by OpenGamma Inc. and the OpenGamma group of companies
*
* Please see distribution for license.
*/
package com.opengamma.web.analytics.rest;
import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;
/**
* Annotation for REST methods that return data from a master (typically queries). When the method is called a
* subscription is created for the calling client. When any data changes in the master the client will be notified.
* The notification will contain the REST URL used to invoke the method. This is to allow clients to repeat a query
* if the data it returned <em>might</em> be stale.
*/
@Target(ElementType.METHOD)
@Retention(RetentionPolicy.RUNTIME)
public @interface SubscribeMaster {
MasterType[] value();
}