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| <h2 title="Interface Providers" class="title">Interface Providers</h2> |
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| <pre>public interface <span class="typeNameLabel">Providers</span></pre> |
| <div class="block">An injectable interface providing runtime lookup of provider instances.</div> |
| <dl> |
| <dt><span class="simpleTagLabel">Since:</span></dt> |
| <dd>1.0</dd> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="../../../../javax/ws/rs/core/Context.html" title="annotation in javax.ws.rs.core"><code>Context</code></a>, |
| <a href="../../../../javax/ws/rs/ext/MessageBodyReader.html" title="interface in javax.ws.rs.ext"><code>MessageBodyReader</code></a>, |
| <a href="../../../../javax/ws/rs/ext/MessageBodyWriter.html" title="interface in javax.ws.rs.ext"><code>MessageBodyWriter</code></a>, |
| <a href="../../../../javax/ws/rs/ext/ContextResolver.html" title="interface in javax.ws.rs.ext"><code>ContextResolver</code></a>, |
| <a href="../../../../javax/ws/rs/ext/ExceptionMapper.html" title="interface in javax.ws.rs.ext"><code>ExceptionMapper</code></a></dd> |
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| <h3>Method Summary</h3> |
| <table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="Method Summary table, listing methods, and an explanation"> |
| <caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd"> </span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">Instance Methods</a></span><span class="tabEnd"> </span></span><span id="t3" class="tableTab"><span><a href="javascript:show(4);">Abstract Methods</a></span><span class="tabEnd"> </span></span></caption> |
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| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colLast" scope="col">Method and Description</th> |
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| <tr id="i0" class="altColor"> |
| <td class="colFirst"><code><T> <a href="../../../../javax/ws/rs/ext/ContextResolver.html" title="interface in javax.ws.rs.ext">ContextResolver</a><T></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../javax/ws/rs/ext/Providers.html#getContextResolver-java.lang.Class-javax.ws.rs.core.MediaType-">getContextResolver</a></span>(java.lang.Class<T> contextType, |
| <a href="../../../../javax/ws/rs/core/MediaType.html" title="class in javax.ws.rs.core">MediaType</a> mediaType)</code> |
| <div class="block">Get a context resolver for a particular type of context and media type.</div> |
| </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code><T extends java.lang.Throwable><br><a href="../../../../javax/ws/rs/ext/ExceptionMapper.html" title="interface in javax.ws.rs.ext">ExceptionMapper</a><T></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../javax/ws/rs/ext/Providers.html#getExceptionMapper-java.lang.Class-">getExceptionMapper</a></span>(java.lang.Class<T> type)</code> |
| <div class="block">Get an exception mapping provider for a particular class of exception.</div> |
| </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code><T> <a href="../../../../javax/ws/rs/ext/MessageBodyReader.html" title="interface in javax.ws.rs.ext">MessageBodyReader</a><T></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../javax/ws/rs/ext/Providers.html#getMessageBodyReader-java.lang.Class-java.lang.reflect.Type-java.lang.annotation.Annotation:A-javax.ws.rs.core.MediaType-">getMessageBodyReader</a></span>(java.lang.Class<T> type, |
| java.lang.reflect.Type genericType, |
| java.lang.annotation.Annotation[] annotations, |
| <a href="../../../../javax/ws/rs/core/MediaType.html" title="class in javax.ws.rs.core">MediaType</a> mediaType)</code> |
| <div class="block">Get a message body reader that matches a set of criteria.</div> |
| </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code><T> <a href="../../../../javax/ws/rs/ext/MessageBodyWriter.html" title="interface in javax.ws.rs.ext">MessageBodyWriter</a><T></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../javax/ws/rs/ext/Providers.html#getMessageBodyWriter-java.lang.Class-java.lang.reflect.Type-java.lang.annotation.Annotation:A-javax.ws.rs.core.MediaType-">getMessageBodyWriter</a></span>(java.lang.Class<T> type, |
| java.lang.reflect.Type genericType, |
| java.lang.annotation.Annotation[] annotations, |
| <a href="../../../../javax/ws/rs/core/MediaType.html" title="class in javax.ws.rs.core">MediaType</a> mediaType)</code> |
| <div class="block">Get a message body writer that matches a set of criteria.</div> |
| </td> |
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| <h4>getMessageBodyReader</h4> |
| <pre><T> <a href="../../../../javax/ws/rs/ext/MessageBodyReader.html" title="interface in javax.ws.rs.ext">MessageBodyReader</a><T> getMessageBodyReader(java.lang.Class<T> type, |
| java.lang.reflect.Type genericType, |
| java.lang.annotation.Annotation[] annotations, |
| <a href="../../../../javax/ws/rs/core/MediaType.html" title="class in javax.ws.rs.core">MediaType</a> mediaType)</pre> |
| <div class="block">Get a message body reader that matches a set of criteria. The set of |
| readers is first filtered by comparing the supplied value of |
| <code>mediaType</code> with the value of each reader's |
| <a href="../../../../javax/ws/rs/Consumes.html" title="annotation in javax.ws.rs"><code>Consumes</code></a>, ensuring the supplied value of |
| <code>type</code> is assignable to the generic type of the reader, and |
| eliminating those that do not match. |
| The list of matching readers is then ordered with those with the best |
| matching values of <a href="../../../../javax/ws/rs/Consumes.html" title="annotation in javax.ws.rs"><code>Consumes</code></a> (x/y > x/* > */*) |
| sorted first. Finally, the |
| <a href="../../../../javax/ws/rs/ext/MessageBodyReader.html#isReadable-java.lang.Class-java.lang.reflect.Type-java.lang.annotation.Annotation:A-javax.ws.rs.core.MediaType-"><code>MessageBodyReader.isReadable(Class, Type, Annotation[], MediaType)</code></a> |
| method is called on each reader in order using the supplied criteria and |
| the first reader that returns <code>true</code> is selected and returned.</div> |
| <dl> |
| <dt><span class="paramLabel">Type Parameters:</span></dt> |
| <dd><code>T</code> - type of the the object that is to be read.</dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>type</code> - the class of the object that is to be read.</dd> |
| <dd><code>genericType</code> - the type of object to be produced. E.g. if the |
| message body is to be converted into a method parameter, this will be |
| the formal type of the method parameter as returned by |
| <code>Class.getGenericParameterTypes</code>.</dd> |
| <dd><code>annotations</code> - an array of the annotations on the declaration of the |
| artifact that will be initialized with the produced instance. E.g. if |
| the message body is to be converted into a method parameter, this will |
| be the annotations on that parameter returned by |
| <code>Class.getParameterAnnotations</code>.</dd> |
| <dd><code>mediaType</code> - the media type of the data that will be read.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>a MessageBodyReader that matches the supplied criteria or <code>null</code> |
| if none is found.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getMessageBodyWriter-java.lang.Class-java.lang.reflect.Type-java.lang.annotation.Annotation:A-javax.ws.rs.core.MediaType-"> |
| <!-- --> |
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| <h4>getMessageBodyWriter</h4> |
| <pre><T> <a href="../../../../javax/ws/rs/ext/MessageBodyWriter.html" title="interface in javax.ws.rs.ext">MessageBodyWriter</a><T> getMessageBodyWriter(java.lang.Class<T> type, |
| java.lang.reflect.Type genericType, |
| java.lang.annotation.Annotation[] annotations, |
| <a href="../../../../javax/ws/rs/core/MediaType.html" title="class in javax.ws.rs.core">MediaType</a> mediaType)</pre> |
| <div class="block">Get a message body writer that matches a set of criteria. The set of |
| writers is first filtered by comparing the supplied value of |
| <code>mediaType</code> with the value of each writer's |
| <a href="../../../../javax/ws/rs/Produces.html" title="annotation in javax.ws.rs"><code>Produces</code></a>, ensuring the supplied value of |
| <code>type</code> is assignable to the generic type of the reader, and |
| eliminating those that do not match. |
| The list of matching writers is then ordered with those with the best |
| matching values of <a href="../../../../javax/ws/rs/Produces.html" title="annotation in javax.ws.rs"><code>Produces</code></a> (x/y > x/* > */*) |
| sorted first. Finally, the |
| <a href="../../../../javax/ws/rs/ext/MessageBodyWriter.html#isWriteable-java.lang.Class-java.lang.reflect.Type-java.lang.annotation.Annotation:A-javax.ws.rs.core.MediaType-"><code>MessageBodyWriter.isWriteable(Class, Type, Annotation[], MediaType)</code></a> |
| method is called on each writer in order using the supplied criteria and |
| the first writer that returns <code>true</code> is selected and returned.</div> |
| <dl> |
| <dt><span class="paramLabel">Type Parameters:</span></dt> |
| <dd><code>T</code> - type of the object that is to be written.</dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>type</code> - the class of the object that is to be written.</dd> |
| <dd><code>genericType</code> - the type of object to be written. E.g. if the |
| message body is to be produced from a field, this will be |
| the declared type of the field as returned by <code>Field.getGenericType</code>.</dd> |
| <dd><code>annotations</code> - an array of the annotations on the declaration of the |
| artifact that will be written. E.g. if the |
| message body is to be produced from a field, this will be |
| the annotations on that field returned by |
| <code>Field.getDeclaredAnnotations</code>.</dd> |
| <dd><code>mediaType</code> - the media type of the data that will be written.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>a MessageBodyReader that matches the supplied criteria or <code>null</code> |
| if none is found.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getExceptionMapper-java.lang.Class-"> |
| <!-- --> |
| </a> |
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| <h4>getExceptionMapper</h4> |
| <pre><T extends java.lang.Throwable> <a href="../../../../javax/ws/rs/ext/ExceptionMapper.html" title="interface in javax.ws.rs.ext">ExceptionMapper</a><T> getExceptionMapper(java.lang.Class<T> type)</pre> |
| <div class="block">Get an exception mapping provider for a particular class of exception. |
| Returns the provider whose generic type is the nearest superclass of |
| <code>type</code>.</div> |
| <dl> |
| <dt><span class="paramLabel">Type Parameters:</span></dt> |
| <dd><code>T</code> - type of the exception handled by the exception mapping provider.</dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>type</code> - the class of exception.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>an <a href="../../../../javax/ws/rs/ext/ExceptionMapper.html" title="interface in javax.ws.rs.ext"><code>ExceptionMapper</code></a> for the supplied type or <code>null</code> |
| if none is found.</dd> |
| </dl> |
| </li> |
| </ul> |
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| <!-- --> |
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| <h4>getContextResolver</h4> |
| <pre><T> <a href="../../../../javax/ws/rs/ext/ContextResolver.html" title="interface in javax.ws.rs.ext">ContextResolver</a><T> getContextResolver(java.lang.Class<T> contextType, |
| <a href="../../../../javax/ws/rs/core/MediaType.html" title="class in javax.ws.rs.core">MediaType</a> mediaType)</pre> |
| <div class="block">Get a context resolver for a particular type of context and media type. |
| The set of resolvers is first filtered by comparing the supplied value of |
| <code>mediaType</code> with the value of each resolver's |
| <a href="../../../../javax/ws/rs/Produces.html" title="annotation in javax.ws.rs"><code>Produces</code></a>, ensuring the generic type of the context |
| resolver is assignable to the supplied value of <code>contextType</code>, and |
| eliminating those that do not match. If only one resolver matches the |
| criteria then it is returned. If more than one resolver matches then the |
| list of matching resolvers is ordered with those with the best |
| matching values of <a href="../../../../javax/ws/rs/Produces.html" title="annotation in javax.ws.rs"><code>Produces</code></a> (x/y > x/* > */*) |
| sorted first. A proxy is returned that delegates calls to |
| <a href="../../../../javax/ws/rs/ext/ContextResolver.html#getContext-java.lang.Class-"><code>ContextResolver.getContext(java.lang.Class)</code></a> to each matching context |
| resolver in order and returns the first non-null value it obtains or null |
| if all matching context resolvers return null.</div> |
| <dl> |
| <dt><span class="paramLabel">Type Parameters:</span></dt> |
| <dd><code>T</code> - type of the context.</dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>contextType</code> - the class of context desired.</dd> |
| <dd><code>mediaType</code> - the media type of data for which a context is required.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>a matching context resolver instance or <code>null</code> if no matching |
| context providers are found.</dd> |
| </dl> |
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