| <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> |
| <html> |
| <head> |
| <title>Apache Wink : JAX-RS Context Information</title> |
| <link rel="stylesheet" href="styles/site.css" type="text/css" /> |
| <META http-equiv="Content-Type" content="text/html; charset=UTF-8"> |
| </head> |
| |
| <body> |
| <table class="pagecontent" border="0" cellpadding="0" cellspacing="0" width="100%" bgcolor="#ffffff"> |
| <tr> |
| <td valign="top" class="pagebody"> |
| <div class="pageheader"> |
| <span class="pagetitle"> |
| Apache Wink : JAX-RS Context Information |
| </span> |
| </div> |
| <div class="pagesubheading"> |
| This page last changed on Aug 24, 2009 by <font color="#0050B2">bluk</font>. |
| </div> |
| |
| <h1><a name="JAX-RSContextInformation-ContextInformation"></a>Context Information</h1> |
| |
| <p>In addition to request parameters and entities, there is more request information that can be accessed via request @Context injected variables.</p> |
| |
| <p>When a resource method is invoked, the runtime injects the @Context variables.</p> |
| |
| <div class="code panel" style="border-width: 1px;"><div class="codeContent panelContent"> |
| <pre class="code-java">
|
| @Path(<span class="code-quote">"/resource"</span>)
|
| <span class="code-keyword">public</span> class Resource {
|
| @Context
|
| <span class="code-keyword">private</span> HttpHeaders headers;
|
|
|
| @GET
|
| <span class="code-keyword">public</span> void get(@Context UriInfo uriInfo) {
|
| /* use headers or uriInfo variable here */
|
| }
|
| }
|
| </pre> |
| </div></div> |
| |
| <p><a name="JAX-RSContextInformation-HttpHeaders"></a></p> |
| <h3><a name="JAX-RSContextInformation-javax.ws.rs.core.HttpHeaders"></a>javax.ws.rs.core.HttpHeaders</h3> |
| |
| <p>HttpHeaders provides methods that allow users to access request headers. A few convenience methods such as #getAcceptableLanguages() and #getAcceptableMediaTypes() provide client preference sorted acceptable responses.</p> |
| |
| <p><a name="JAX-RSContextInformation-UriInfo"></a></p> |
| <h3><a name="JAX-RSContextInformation-javax.ws.rs.core.UriInfo"></a>javax.ws.rs.core.UriInfo</h3> |
| |
| <p>UriInfo provides methods so developers can find or build URI information of the current request.</p> |
| |
| <p><a name="JAX-RSContextInformation-SecurityContext"></a></p> |
| <h3><a name="JAX-RSContextInformation-javax.ws.rs.core.SecurityContext"></a>javax.ws.rs.core.SecurityContext</h3> |
| |
| <p>SecurityContext provides access to the security information.</p> |
| |
| <p><a name="JAX-RSContextInformation-Request"></a></p> |
| <h3><a name="JAX-RSContextInformation-javax.ws.rs.core.Request"></a>javax.ws.rs.core.Request</h3> |
| |
| <p>Request provides methods for evaluating preconditions and for selecting the best response variant based on the request headers.</p> |
| |
| <p><a name="JAX-RSContextInformation-Providers"></a></p> |
| <h3><a name="JAX-RSContextInformation-javax.ws.rs.core.Providers"></a>javax.ws.rs.core.Providers</h3> |
| |
| <p>Providers allows access to the user and runtime provided MessageBodyReaders, MessageBodyWriters, ContextResolvers, and ExceptionMappers. It is useful for other providers but can sometimes be useful for resource methods and classes.</p> |
| |
| |
| </td> |
| </tr> |
| </table> |
| <table border="0" cellpadding="0" cellspacing="0" width="100%"> |
| <tr> |
| <td height="12" background="http://cwiki.apache.org/confluence/images/border/border_bottom.gif"><img src="images/border/spacer.gif" width="1" height="1" border="0"/></td> |
| </tr> |
| <tr> |
| <td align="center"><font color="grey">Document generated by Confluence on Nov 11, 2009 06:57</font></td> |
| </tr> |
| </table> |
| </body> |
| </html> |
