package ca.uhn.fhir.rest.annotation;

/*
 * #%L
 * HAPI FHIR - Core Library
 * %%
 * Copyright (C) 2014 - 2017 University Health Network
 * %%
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *      http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * #L%
 */

import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;

import ca.uhn.fhir.rest.param.DateParam;
import ca.uhn.fhir.rest.param.DateRangeParam;

/**
 * Parameter annotation for the _since parameter, which indicates to the 
 * server that only results dated since the given instant will be returned. 
 * <p>
 * Parameters with this annotation should be of type {@link DateParam} or {@link DateRangeParam}  
 * </p>
 * 
 * @see History
 */
@Target(value=ElementType.PARAMETER)
@Retention(RetentionPolicy.RUNTIME)
public @interface Since {
	//nothing
}
