| <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> |
| <!-- NewPage --> |
| <html lang="en"> |
| <head> |
| <title>ClientHeaderParam</title> |
| <link rel="stylesheet" type="text/css" href="../../../../../../stylesheet.css" title="Style"> |
| <script type="text/javascript" src="../../../../../../script.js"></script> |
| |
| <link rel="shortcut icon" href="/img/microprofile-favicon.png"> |
| </head> |
| <body> |
| <script type="text/javascript"><!-- |
| try { |
| if (location.href.indexOf('is-external=true') == -1) { |
| parent.document.title="ClientHeaderParam"; |
| } |
| } |
| catch(err) { |
| } |
| //--> |
| </script> |
| <noscript> |
| <div>JavaScript is disabled on your browser.</div> |
| </noscript> |
| <!-- ========= START OF TOP NAVBAR ======= --> |
| <div class="topNav"><a name="navbar.top"> |
| <!-- --> |
| </a> |
| <div class="skipNav"><a href="#skip.navbar.top" title="Skip navigation links">Skip navigation links</a></div> |
| <a name="navbar.top.firstrow"> |
| <!-- --> |
| </a> |
| <ul class="navList" title="Navigation"> |
| <li><a href="../../../../../../overview-summary.html">Overview</a></li> |
| <li><a href="package-summary.html">Package</a></li> |
| <li class="navBarCell1Rev">Class</li> |
| <li><a href="package-tree.html">Tree</a></li> |
| <li><a href="../../../../../../deprecated-list.html">Deprecated</a></li> |
| <li><a href="../../../../../../index-all.html">Index</a></li> |
| <li><a href="../../../../../../help-doc.html">Help</a></li> |
| </ul> |
| </div> |
| <div class="subNav"> |
| <ul class="navList"> |
| <li>Prev Class</li> |
| <li><a href="../../../../../../org/eclipse/microprofile/rest/client/annotation/ClientHeaderParams.html" title="annotation in org.eclipse.microprofile.rest.client.annotation"><span class="typeNameLink">Next Class</span></a></li> |
| </ul> |
| <ul class="navList"> |
| <li><a href="../../../../../../index.html?org/eclipse/microprofile/rest/client/annotation/ClientHeaderParam.html" target="_top">Frames</a></li> |
| <li><a href="ClientHeaderParam.html" target="_top">No Frames</a></li> |
| </ul> |
| <ul class="navList" id="allclasses_navbar_top"> |
| <li><a href="../../../../../../allclasses-noframe.html">All Classes</a></li> |
| </ul> |
| <div> |
| <script type="text/javascript"><!-- |
| allClassesLink = document.getElementById("allclasses_navbar_top"); |
| if(window==top) { |
| allClassesLink.style.display = "block"; |
| } |
| else { |
| allClassesLink.style.display = "none"; |
| } |
| //--> |
| </script> |
| </div> |
| <div> |
| <ul class="subNavList"> |
| <li>Summary: </li> |
| <li>Field | </li> |
| <li><a href="#annotation.type.required.element.summary">Required</a> | </li> |
| <li><a href="#annotation.type.optional.element.summary">Optional</a></li> |
| </ul> |
| <ul class="subNavList"> |
| <li>Detail: </li> |
| <li>Field | </li> |
| <li><a href="#annotation.type.element.detail">Element</a></li> |
| </ul> |
| </div> |
| <a name="skip.navbar.top"> |
| <!-- --> |
| </a></div> |
| <!-- ========= END OF TOP NAVBAR ========= --> |
| <!-- ======== START OF CLASS DATA ======== --> |
| <div class="header"> |
| <div class="subTitle">org.eclipse.microprofile.rest.client.annotation</div> |
| <h2 title="Annotation Type ClientHeaderParam" class="title">Annotation Type ClientHeaderParam</h2> |
| </div> |
| <div class="contentContainer"> |
| <div class="description"> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <hr> |
| <br> |
| <pre>@Target(value={TYPE,METHOD}) |
| @Retention(value=RUNTIME) |
| @Documented |
| @Repeatable(value=<a href="../../../../../../org/eclipse/microprofile/rest/client/annotation/ClientHeaderParams.html" title="annotation in org.eclipse.microprofile.rest.client.annotation">ClientHeaderParams.class</a>) |
| public @interface <span class="memberNameLabel">ClientHeaderParam</span></pre> |
| <div class="block">Used to specify an HTTP parameter that should be sent with the outbound request. |
| When this annotation is placed at the interface level of a REST client interface, the specified header will be sent on each request for all |
| methods in the interface. |
| When this annotation is placed on a method, the header will be sent only for that method. If the same HTTP header is specified in an annotation |
| for both the type and the method, only the header value specified in the annotation on the method will be sent. |
| <p> |
| The value of the header to send can be specified explicitly by using the <code>value</code> attribute. |
| The value can also be computed via a default method on the client interface or a public static method on a different class. The compute method |
| must return a String or String[] (indicating a multivalued header) value. This method must be specified in the <code>value</code> attribute but |
| wrapped in curly-braces. The compute method's signature must either contain no arguments or a single <code>String</code> argument. The String |
| argument is the name of the header. |
| <p> |
| Here is an example that explicitly defines a header value and computes a value: |
| <pre> |
| public interface MyClient { |
| |
| static AtomicInteger counter = new AtomicInteger(1); |
| |
| default String determineHeaderValue(String headerName) { |
| if ("SomeHeader".equals(headerName)) { |
| return "InvokedCount " + counter.getAndIncrement(); |
| } |
| throw new UnsupportedOperationException("unknown header name"); |
| } |
| |
| @ClientHeaderParam(name="SomeHeader", value="ExplicitlyDefinedValue") |
| @GET |
| Response useExplicitHeaderValue(); |
| |
| @ClientHeaderParam(name="SomeHeader", value="{determineHeaderValue}") |
| @DELETE |
| Response useComputedHeaderValue(); |
| } |
| </pre> |
| The implementation should fail to deploy a client interface if the annotation contains a <code>@ClientHeaderParam</code> annotation with a |
| <code>value</code> attribute that references a method that does not exist, or contains an invalid signature. |
| <p> |
| The <code>required</code> attribute will determine what action the implementation should take if the method specified in the <code>value</code> |
| attribute throws an exception. If the attribute is true (default), then the implementation will abort the request and will throw the exception |
| back to the caller. If the <code>required</code> attribute is set to false, then the implementation will not send this header if the method throws |
| an exception. |
| <p> |
| Note that if an interface method contains an argument annotated with <code>@HeaderParam</code>, that argument will take priority over anything |
| specified in a ClientHeaderParam annotation.</div> |
| <dl> |
| <dt><span class="simpleTagLabel">Since:</span></dt> |
| <dd>1.2</dd> |
| </dl> |
| </li> |
| </ul> |
| </div> |
| <div class="summary"> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <!-- =========== ANNOTATION TYPE REQUIRED MEMBER SUMMARY =========== --> |
| <ul class="blockList"> |
| <li class="blockList"><a name="annotation.type.required.element.summary"> |
| <!-- --> |
| </a> |
| <h3>Required Element Summary</h3> |
| <table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="Required Element Summary table, listing required elements, and an explanation"> |
| <caption><span>Required Elements</span><span class="tabEnd"> </span></caption> |
| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colLast" scope="col">Required Element and Description</th> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>java.lang.String</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/eclipse/microprofile/rest/client/annotation/ClientHeaderParam.html#name--">name</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>java.lang.String[]</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/eclipse/microprofile/rest/client/annotation/ClientHeaderParam.html#value--">value</a></span></code> </td> |
| </tr> |
| </table> |
| </li> |
| </ul> |
| <!-- =========== ANNOTATION TYPE OPTIONAL MEMBER SUMMARY =========== --> |
| <ul class="blockList"> |
| <li class="blockList"><a name="annotation.type.optional.element.summary"> |
| <!-- --> |
| </a> |
| <h3>Optional Element Summary</h3> |
| <table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="Optional Element Summary table, listing optional elements, and an explanation"> |
| <caption><span>Optional Elements</span><span class="tabEnd"> </span></caption> |
| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colLast" scope="col">Optional Element and Description</th> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/eclipse/microprofile/rest/client/annotation/ClientHeaderParam.html#required--">required</a></span></code> </td> |
| </tr> |
| </table> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| </div> |
| <div class="details"> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <!-- ============ ANNOTATION TYPE MEMBER DETAIL =========== --> |
| <ul class="blockList"> |
| <li class="blockList"><a name="annotation.type.element.detail"> |
| <!-- --> |
| </a> |
| <h3>Element Detail</h3> |
| <a name="name--"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>name</h4> |
| <pre>public abstract java.lang.String name</pre> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the name of the HTTP header.</dd> |
| </dl> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| <ul class="blockList"> |
| <li class="blockList"><a name="value--"> |
| <!-- --> |
| </a> |
| <ul class="blockListLast"> |
| <li class="blockList"> |
| <h4>value</h4> |
| <pre>public abstract java.lang.String[] value</pre> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the value(s) of the HTTP header - or the method to invoke to get the value (surrounded by curly braces).</dd> |
| </dl> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| <!-- ============ ANNOTATION TYPE MEMBER DETAIL =========== --> |
| <ul class="blockList"> |
| <li class="blockList"><a name="required--"> |
| <!-- --> |
| </a> |
| <ul class="blockListLast"> |
| <li class="blockList"> |
| <h4>required</h4> |
| <pre>public abstract boolean required</pre> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>whether to abort the request if the method to compute the header value throws an exception (true; default) or just skip this header |
| (false)</dd> |
| </dl> |
| <dl> |
| <dt>Default:</dt> |
| <dd>true</dd> |
| </dl> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| </div> |
| </div> |
| <!-- ========= END OF CLASS DATA ========= --> |
| <!-- ======= START OF BOTTOM NAVBAR ====== --> |
| <div class="bottomNav"><a name="navbar.bottom"> |
| <!-- --> |
| </a> |
| <div class="skipNav"><a href="#skip.navbar.bottom" title="Skip navigation links">Skip navigation links</a></div> |
| <a name="navbar.bottom.firstrow"> |
| <!-- --> |
| </a> |
| <ul class="navList" title="Navigation"> |
| <li><a href="../../../../../../overview-summary.html">Overview</a></li> |
| <li><a href="package-summary.html">Package</a></li> |
| <li class="navBarCell1Rev">Class</li> |
| <li><a href="package-tree.html">Tree</a></li> |
| <li><a href="../../../../../../deprecated-list.html">Deprecated</a></li> |
| <li><a href="../../../../../../index-all.html">Index</a></li> |
| <li><a href="../../../../../../help-doc.html">Help</a></li> |
| </ul> |
| </div> |
| <div class="subNav"> |
| <ul class="navList"> |
| <li>Prev Class</li> |
| <li><a href="../../../../../../org/eclipse/microprofile/rest/client/annotation/ClientHeaderParams.html" title="annotation in org.eclipse.microprofile.rest.client.annotation"><span class="typeNameLink">Next Class</span></a></li> |
| </ul> |
| <ul class="navList"> |
| <li><a href="../../../../../../index.html?org/eclipse/microprofile/rest/client/annotation/ClientHeaderParam.html" target="_top">Frames</a></li> |
| <li><a href="ClientHeaderParam.html" target="_top">No Frames</a></li> |
| </ul> |
| <ul class="navList" id="allclasses_navbar_bottom"> |
| <li><a href="../../../../../../allclasses-noframe.html">All Classes</a></li> |
| </ul> |
| <div> |
| <script type="text/javascript"><!-- |
| allClassesLink = document.getElementById("allclasses_navbar_bottom"); |
| if(window==top) { |
| allClassesLink.style.display = "block"; |
| } |
| else { |
| allClassesLink.style.display = "none"; |
| } |
| //--> |
| </script> |
| </div> |
| <div> |
| <ul class="subNavList"> |
| <li>Summary: </li> |
| <li>Field | </li> |
| <li><a href="#annotation.type.required.element.summary">Required</a> | </li> |
| <li><a href="#annotation.type.optional.element.summary">Optional</a></li> |
| </ul> |
| <ul class="subNavList"> |
| <li>Detail: </li> |
| <li>Field | </li> |
| <li><a href="#annotation.type.element.detail">Element</a></li> |
| </ul> |
| </div> |
| <a name="skip.navbar.bottom"> |
| <!-- --> |
| </a></div> |
| <!-- ======== END OF BOTTOM NAVBAR ======= --> |
| </body> |
| </html> |