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<div class="subTitle">jakarta.ws.rs.client</div>
<h2 title="Interface Client" class="title">Interface Client</h2>
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<dt>All Superinterfaces:</dt>
<dd><a href="../../../../jakarta/ws/rs/core/Configurable.html" title="interface in jakarta.ws.rs.core">Configurable</a>&lt;<a href="../../../../jakarta/ws/rs/client/Client.html" title="interface in jakarta.ws.rs.client">Client</a>&gt;</dd>
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<pre>public interface <span class="typeNameLabel">Client</span>
extends <a href="../../../../jakarta/ws/rs/core/Configurable.html" title="interface in jakarta.ws.rs.core">Configurable</a>&lt;<a href="../../../../jakarta/ws/rs/client/Client.html" title="interface in jakarta.ws.rs.client">Client</a>&gt;</pre>
<div class="block"><p>
Client is the main entry point to the fluent API used to build and execute client requests in order to consume
responses returned.
</p>
Clients are heavy-weight objects that manage the client-side communication infrastructure. Initialization as well as
disposal of a <code>Client</code> instance may be a rather expensive operation. It is therefore advised to construct only
a small number of <code>Client</code> instances in the application. Client instances must be <a href="../../../../jakarta/ws/rs/client/Client.html#close--"><code>properly
closed</code></a> before being disposed to avoid leaking resources.</div>
<dl>
<dt><span class="simpleTagLabel">Since:</span></dt>
<dd>2.0</dd>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="../../../../jakarta/ws/rs/core/Configurable.html" title="interface in jakarta.ws.rs.core"><code>Configurable</code></a></dd>
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<h3>Method Summary</h3>
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<caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd">&nbsp;</span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">Instance Methods</a></span><span class="tabEnd">&nbsp;</span></span><span id="t3" class="tableTab"><span><a href="javascript:show(4);">Abstract Methods</a></span><span class="tabEnd">&nbsp;</span></span></caption>
<tr>
<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>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../jakarta/ws/rs/client/Client.html#close--">close</a></span>()</code>
<div class="block">
Close client instance and all it's associated resources.</div>
</td>
</tr>
<tr id="i1" class="rowColor">
<td class="colFirst"><code>javax.net.ssl.HostnameVerifier</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../jakarta/ws/rs/client/Client.html#getHostnameVerifier--">getHostnameVerifier</a></span>()</code>
<div class="block">Get the hostname verifier configured in the client or <code>null</code> in case no hostname verifier has been configured.</div>
</td>
</tr>
<tr id="i2" class="altColor">
<td class="colFirst"><code>javax.net.ssl.SSLContext</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../jakarta/ws/rs/client/Client.html#getSslContext--">getSslContext</a></span>()</code>
<div class="block">Get the SSL context configured to be used with the current client run-time.</div>
</td>
</tr>
<tr id="i3" class="rowColor">
<td class="colFirst"><code><a href="../../../../jakarta/ws/rs/client/Invocation.Builder.html" title="interface in jakarta.ws.rs.client">Invocation.Builder</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../jakarta/ws/rs/client/Client.html#invocation-jakarta.ws.rs.core.Link-">invocation</a></span>(<a href="../../../../jakarta/ws/rs/core/Link.html" title="class in jakarta.ws.rs.core">Link</a>&nbsp;link)</code>
<div class="block">
Build an invocation builder from a link.</div>
</td>
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<tr id="i4" class="altColor">
<td class="colFirst"><code><a href="../../../../jakarta/ws/rs/client/WebTarget.html" title="interface in jakarta.ws.rs.client">WebTarget</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../jakarta/ws/rs/client/Client.html#target-jakarta.ws.rs.core.Link-">target</a></span>(<a href="../../../../jakarta/ws/rs/core/Link.html" title="class in jakarta.ws.rs.core">Link</a>&nbsp;link)</code>
<div class="block">Build a new web resource target.</div>
</td>
</tr>
<tr id="i5" class="rowColor">
<td class="colFirst"><code><a href="../../../../jakarta/ws/rs/client/WebTarget.html" title="interface in jakarta.ws.rs.client">WebTarget</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../jakarta/ws/rs/client/Client.html#target-java.lang.String-">target</a></span>(java.lang.String&nbsp;uri)</code>
<div class="block">Build a new web resource target.</div>
</td>
</tr>
<tr id="i6" class="altColor">
<td class="colFirst"><code><a href="../../../../jakarta/ws/rs/client/WebTarget.html" title="interface in jakarta.ws.rs.client">WebTarget</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../jakarta/ws/rs/client/Client.html#target-java.net.URI-">target</a></span>(java.net.URI&nbsp;uri)</code>
<div class="block">Build a new web resource target.</div>
</td>
</tr>
<tr id="i7" class="rowColor">
<td class="colFirst"><code><a href="../../../../jakarta/ws/rs/client/WebTarget.html" title="interface in jakarta.ws.rs.client">WebTarget</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../jakarta/ws/rs/client/Client.html#target-jakarta.ws.rs.core.UriBuilder-">target</a></span>(<a href="../../../../jakarta/ws/rs/core/UriBuilder.html" title="class in jakarta.ws.rs.core">UriBuilder</a>&nbsp;uriBuilder)</code>
<div class="block">Build a new web resource target.</div>
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<h3>Methods inherited from interface&nbsp;jakarta.ws.rs.core.<a href="../../../../jakarta/ws/rs/core/Configurable.html" title="interface in jakarta.ws.rs.core">Configurable</a></h3>
<code><a href="../../../../jakarta/ws/rs/core/Configurable.html#getConfiguration--">getConfiguration</a>, <a href="../../../../jakarta/ws/rs/core/Configurable.html#property-java.lang.String-java.lang.Object-">property</a>, <a href="../../../../jakarta/ws/rs/core/Configurable.html#register-java.lang.Class-">register</a>, <a href="../../../../jakarta/ws/rs/core/Configurable.html#register-java.lang.Class-java.lang.Class...-">register</a>, <a href="../../../../jakarta/ws/rs/core/Configurable.html#register-java.lang.Class-int-">register</a>, <a href="../../../../jakarta/ws/rs/core/Configurable.html#register-java.lang.Class-java.util.Map-">register</a>, <a href="../../../../jakarta/ws/rs/core/Configurable.html#register-java.lang.Object-">register</a>, <a href="../../../../jakarta/ws/rs/core/Configurable.html#register-java.lang.Object-java.lang.Class...-">register</a>, <a href="../../../../jakarta/ws/rs/core/Configurable.html#register-java.lang.Object-int-">register</a>, <a href="../../../../jakarta/ws/rs/core/Configurable.html#register-java.lang.Object-java.util.Map-">register</a></code></li>
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<h4>close</h4>
<pre>void&nbsp;close()</pre>
<div class="block"><p>
Close client instance and all it's associated resources. Subsequent calls have no effect and are ignored. Once the
client is closed, invoking any other method on the client instance would result in an <code>IllegalStateException</code>
being thrown.
</p>
Calling this method effectively invalidates all <a href="../../../../jakarta/ws/rs/client/WebTarget.html" title="interface in jakarta.ws.rs.client"><code>resource targets</code></a> produced by the client instance.
Invoking any method on such targets once the client is closed would result in an <code>IllegalStateException</code> being
thrown.</div>
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<h4>target</h4>
<pre><a href="../../../../jakarta/ws/rs/client/WebTarget.html" title="interface in jakarta.ws.rs.client">WebTarget</a>&nbsp;target(java.lang.String&nbsp;uri)</pre>
<div class="block">Build a new web resource target.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>uri</code> - web resource URI. May contain template parameters. Must not be <code>null</code>.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>web resource target bound to the provided URI.</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code>java.lang.IllegalArgumentException</code> - in case the supplied string is not a valid URI template.</dd>
<dd><code>java.lang.NullPointerException</code> - in case the supplied argument is <code>null</code>.</dd>
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<h4>target</h4>
<pre><a href="../../../../jakarta/ws/rs/client/WebTarget.html" title="interface in jakarta.ws.rs.client">WebTarget</a>&nbsp;target(java.net.URI&nbsp;uri)</pre>
<div class="block">Build a new web resource target.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>uri</code> - web resource URI. Must not be <code>null</code>.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>web resource target bound to the provided URI.</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code>java.lang.NullPointerException</code> - in case the supplied argument is <code>null</code>.</dd>
</dl>
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<a name="target-jakarta.ws.rs.core.UriBuilder-">
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<h4>target</h4>
<pre><a href="../../../../jakarta/ws/rs/client/WebTarget.html" title="interface in jakarta.ws.rs.client">WebTarget</a>&nbsp;target(<a href="../../../../jakarta/ws/rs/core/UriBuilder.html" title="class in jakarta.ws.rs.core">UriBuilder</a>&nbsp;uriBuilder)</pre>
<div class="block">Build a new web resource target.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>uriBuilder</code> - web resource URI represented as URI builder. Must not be <code>null</code>.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>web resource target bound to the provided URI.</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code>java.lang.NullPointerException</code> - in case the supplied argument is <code>null</code>.</dd>
</dl>
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<h4>target</h4>
<pre><a href="../../../../jakarta/ws/rs/client/WebTarget.html" title="interface in jakarta.ws.rs.client">WebTarget</a>&nbsp;target(<a href="../../../../jakarta/ws/rs/core/Link.html" title="class in jakarta.ws.rs.core">Link</a>&nbsp;link)</pre>
<div class="block">Build a new web resource target.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>link</code> - link to a web resource. Must not be <code>null</code>.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>web resource target bound to the linked web resource.</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code>java.lang.NullPointerException</code> - in case the supplied argument is <code>null</code>.</dd>
</dl>
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<h4>invocation</h4>
<pre><a href="../../../../jakarta/ws/rs/client/Invocation.Builder.html" title="interface in jakarta.ws.rs.client">Invocation.Builder</a>&nbsp;invocation(<a href="../../../../jakarta/ws/rs/core/Link.html" title="class in jakarta.ws.rs.core">Link</a>&nbsp;link)</pre>
<div class="block"><p>
Build an invocation builder from a link. It uses the URI and the type of the link to initialize the invocation
builder. The type is used as the initial value for the HTTP Accept header, if present.
</p></div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>link</code> - link to build invocation from. Must not be <code>null</code>.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>newly created invocation builder.</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code>java.lang.NullPointerException</code> - in case link is <code>null</code>.</dd>
</dl>
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<h4>getSslContext</h4>
<pre>javax.net.ssl.SSLContext&nbsp;getSslContext()</pre>
<div class="block">Get the SSL context configured to be used with the current client run-time.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>SSL context configured to be used with the current client run-time.</dd>
</dl>
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<h4>getHostnameVerifier</h4>
<pre>javax.net.ssl.HostnameVerifier&nbsp;getHostnameVerifier()</pre>
<div class="block">Get the hostname verifier configured in the client or <code>null</code> in case no hostname verifier has been configured.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>client hostname verifier or <code>null</code> if not set.</dd>
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