javax.ws.rs.Path Maven / Gradle / Ivy
/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright (c) 2010-2015 Oracle and/or its affiliates. All rights reserved.
*
* The contents of this file are subject to the terms of either the GNU
* General Public License Version 2 only ("GPL") or the Common Development
* and Distribution License("CDDL") (collectively, the "License"). You
* may not use this file except in compliance with the License. You can
* obtain a copy of the License at
* http://glassfish.java.net/public/CDDL+GPL_1_1.html
* or packager/legal/LICENSE.txt. See the License for the specific
* language governing permissions and limitations under the License.
*
* When distributing the software, include this License Header Notice in each
* file and include the License file at packager/legal/LICENSE.txt.
*
* GPL Classpath Exception:
* Oracle designates this particular file as subject to the "Classpath"
* exception as provided by Oracle in the GPL Version 2 section of the License
* file that accompanied this code.
*
* Modifications:
* If applicable, add the following below the License Header, with the fields
* enclosed by brackets [] replaced by your own identifying information:
* "Portions Copyright [year] [name of copyright owner]"
*
* Contributor(s):
* If you wish your version of this file to be governed by only the CDDL or
* only the GPL Version 2, indicate your decision by adding "[Contributor]
* elects to include this software in this distribution under the [CDDL or GPL
* Version 2] license." If you don't indicate a single choice of license, a
* recipient has the option to distribute your version of this file under
* either the CDDL, the GPL Version 2 or to extend the choice of license to
* its licensees as provided above. However, if you add GPL Version 2 code
* and therefore, elected the GPL Version 2 license, then the option applies
* only if the new code is made subject to such option by the copyright
* holder.
*/
package javax.ws.rs;
import java.lang.annotation.Documented;
import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;
/**
* Identifies the URI path that a resource class or class method will serve
* requests for.
*
* Paths are relative. For an annotated class the base URI is the
* application path, see {@link ApplicationPath}. For an annotated
* method the base URI is the
* effective URI of the containing class. For the purposes of absolutizing a
* path against the base URI , a leading '/' in a path is
* ignored and base URIs are treated as if they ended in '/'. E.g.:
*
* @Path("widgets")
* public class WidgetsResource {
* @GET
* String getList() {...}
*
* @GET @Path("{id}")
* String getWidget(@PathParam("id") String id) {...}
* }
*
* In the above, if the application path is
* {@code catalogue} and the application is deployed at
* {@code http://example.com/}, then {@code GET} requests for
* {@code http://example.com/catalogue/widgets} will be handled by the
* {@code getList} method while requests for
* http://example.com/catalogue/widgets/nnn (where
* nnn is some value) will be handled by the
* {@code getWidget} method. The same would apply if the value of either
* {@code @Path} annotation started with '/'.
*
* Classes and methods may also be annotated with {@link Consumes} and
* {@link Produces} to filter the requests they will receive.
*
* @author Paul Sandoz
* @author Marc Hadley
* @see Consumes
* @see Produces
* @see PathParam
* @since 1.0
*/
@Target({ElementType.TYPE, ElementType.METHOD})
@Retention(RetentionPolicy.RUNTIME)
@Documented
public @interface Path {
/**
* Defines a URI template for the resource class or method, must not
* include matrix parameters.
*
* Embedded template parameters are allowed and are of the form:
*
* param = "{" *WSP name *WSP [ ":" *WSP regex *WSP ] "}"
* name = (ALPHA / DIGIT / "_")*(ALPHA / DIGIT / "." / "_" / "-" ) ; \w[\w\.-]*
* regex = *( nonbrace / "{" *nonbrace "}" ) ; where nonbrace is any char other than "{" and "}"
*
* See {@link RFC 5234}
* for a description of the syntax used above and the expansions of
* {@code WSP}, {@code ALPHA} and {@code DIGIT}. In the above {@code name}
* is the template parameter name and the optional {@code regex} specifies
* the contents of the capturing group for the parameter. If {@code regex}
* is not supplied then a default value of {@code [^/]+} which terminates at
* a path segment boundary, is used. Matching of request URIs to URI
* templates is performed against encoded path values and implementations
* will not escape literal characters in regex automatically, therefore any
* literals in {@code regex} should be escaped by the author according to
* the rules of
* {@link RFC 3986 section 3.3}.
* Caution is recommended in the use of {@code regex}, incorrect use can
* lead to a template parameter matching unexpected URI paths. See
* {@link Pattern}
* for further information on the syntax of regular expressions.
* Values of template parameters may be extracted using {@link PathParam}.
*
* The literal part of the supplied value (those characters
* that are not part of a template parameter) is automatically percent
* encoded to conform to the {@code path} production of
* {@link RFC 3986 section 3.3}.
* Note that percent encoded values are allowed in the literal part of the
* value, an implementation will recognize such values and will not double
* encode the '%' character.
*/
String value();
}