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Operation.java
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Operation.java
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package ca.uhn.fhir.rest.annotation;
/*
* #%L
* HAPI FHIR - Core Library
* %%
* Copyright (C) 2014 - 2018 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 ca.uhn.fhir.model.valueset.BundleTypeEnum;
import org.hl7.fhir.instance.model.api.IBaseResource;
import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;
/**
* RESTful method annotation used for a method which provides FHIR "operations".
*/
@Retention(RetentionPolicy.RUNTIME)
@Target(value = ElementType.METHOD)
public @interface Operation {
/**
* This constant is a special return value for {@link #name()}. If this name is
* used, the given operation method will match all operation calls. This is
* generally not desirable, but can be useful if you have a server that should
* dynamically match any FHIR operations that are requested.
*/
String NAME_MATCH_ALL = "*";
/**
* The name of the operation, e.g. "<code>$everything</code>"
*
* <p>
* This may be specified with or without a leading
* '$'. (If the leading '$' is omitted, it will be added internally by the API).
* </p>
*/
String name();
/**
* On a client, this value should be populated with the resource type that the operation applies to. If set to
* {@link IBaseResource} (which is the default) than the operation applies to the server and not to a specific
* resource type.
* <p>
* This value has no effect when used on server implementations.
* </p>
*/
Class<? extends IBaseResource> type() default IBaseResource.class;
/**
* If a given operation method is <b><a href="http://en.wikipedia.org/wiki/Idempotence">idempotent</a></b>
* (meaning roughly that it does not modify any data or state on the server)
* then this flag should be set to <code>true</code> (default is <code>false</code>).
* <p>
* One the server, setting this to <code>true</code> means that the
* server will allow the operation to be invoked using an <code>HTTP GET</code>
* (on top of the standard <code>HTTP POST</code>)
* </p>
*/
boolean idempotent() default false;
/**
* This parameter may be used to specify the parts which will be found in the
* response to this operation.
*/
OperationParam[] returnParameters() default {};
/**
* If this operation returns a bundle, this parameter can be used to specify the
* bundle type to set in the bundle.
*/
BundleTypeEnum bundleType() default BundleTypeEnum.COLLECTION;
}