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| Apache Wink : JAX-RS Context Information |
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| This page last changed on Aug 24, 2009 by <font color="#0050B2">bluk</font>. |
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| <h1><a name="JAX-RSContextInformation-ContextInformation"></a>Context Information</h1> |
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| <p>In addition to request parameters and entities, there is more request information that can be accessed via request @Context injected variables.</p> |
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| <p>When a resource method is invoked, the runtime injects the @Context variables.</p> |
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| <pre class="code-java">
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| @Path(<span class="code-quote">"/resource"</span>)
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| <span class="code-keyword">public</span> class Resource {
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| @Context
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| <span class="code-keyword">private</span> HttpHeaders headers;
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| @GET
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| <span class="code-keyword">public</span> void get(@Context UriInfo uriInfo) {
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| /* use headers or uriInfo variable here */
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| }
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| }
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| </pre> |
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| <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> |
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| <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> |
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| <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> |
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| <p>UriInfo provides methods so developers can find or build URI information of the current request.</p> |
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| <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> |
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| <p>SecurityContext provides access to the security information.</p> |
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| <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> |
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| <p>Request provides methods for evaluating preconditions and for selecting the best response variant based on the request headers.</p> |
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| <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> |
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| <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> |
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| <td align="center"><font color="grey">Document generated by Confluence on Nov 11, 2009 06:57</font></td> |
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