content/site/apidocs-9.0.0/org/apache/juneau/rest/RequestHeader.html - juneau-website - Git at Google

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 <div class="subTitle">org.apache.juneau.rest</div>
 <h2 title="Class RequestHeader" class="title">Class RequestHeader</h2>
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 <pre>public class <a href="../../../../src-html/org/apache/juneau/rest/RequestHeader.html#line.32">RequestHeader</a>
 extends <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>
 implements <a href="https://hc.apache.org/httpcomponents-core-4.4.x/httpcore/apidocs/org/apache/http/Header.html?is-external=true" title="class or interface in org.apache.http">Header</a></pre>
 <div class="block">Represents a single header on an HTTP response.</div>
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 <th class="colOne" scope="col">Constructor and Description</th>
 </tr>
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 <td class="colOne"><code><span class="memberNameLink"><a href="../../../../org/apache/juneau/rest/RequestHeader.html#RequestHeader-org.apache.juneau.rest.RestRequest-org.apache.juneau.rest.RestResponse-org.apache.http.Header-">RequestHeader</a></span>(<a href="../../../../org/apache/juneau/rest/RestRequest.html" title="class in org.apache.juneau.rest">RestRequest</a>&nbsp;request,
              <a href="../../../../org/apache/juneau/rest/RestResponse.html" title="class in org.apache.juneau.rest">RestResponse</a>&nbsp;response,
              <a href="https://hc.apache.org/httpcomponents-core-4.4.x/httpcore/apidocs/org/apache/http/Header.html?is-external=true" title="class or interface in org.apache.http">Header</a>&nbsp;header)</code>
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 <td class="colFirst"><code>&lt;T&gt;&nbsp;T</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/juneau/rest/RequestHeader.html#as-java.lang.Class-">as</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</a>&lt;T&gt;&nbsp;type)</code>
 <div class="block">Converts this header to the specified type.</div>
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 <td class="colFirst"><code>&lt;T&gt;&nbsp;T</code></td>
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 <div class="block">Converts this header to the specified type.</div>
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 <td class="colFirst"><code>&lt;T&gt;&nbsp;<a href="../../../../org/apache/juneau/rest/RestResponse.html" title="class in org.apache.juneau.rest">RestResponse</a></code></td>
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 <td class="colFirst"><code>&lt;T&gt;&nbsp;T</code></td>
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 <div class="block">Converts this header to the specified type.</div>
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 <tr id="i6" class="altColor">
 <td class="colFirst"><code><a href="../../../../org/apache/juneau/rest/RestResponse.html" title="class in org.apache.juneau.rest">RestResponse</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/juneau/rest/RequestHeader.html#asMatcher-org.apache.juneau.utils.Mutable-java.util.regex.Pattern-">asMatcher</a></span>(<a href="../../../../org/apache/juneau/utils/Mutable.html" title="class in org.apache.juneau.utils">Mutable</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/util/regex/Matcher.html?is-external=true" title="class or interface in java.util.regex">Matcher</a>&gt;&nbsp;m,
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 <div class="block">Same as <a href="../../../../org/apache/juneau/rest/RequestHeader.html#asMatcher-java.util.regex.Pattern-"><code>asMatcher(Pattern)</code></a> but sets the value in a mutable for fluent calls.</div>
 </td>
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 <tr id="i7" class="rowColor">
 <td class="colFirst"><code><a href="../../../../org/apache/juneau/rest/RestResponse.html" title="class in org.apache.juneau.rest">RestResponse</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/juneau/rest/RequestHeader.html#asMatcher-org.apache.juneau.utils.Mutable-java.lang.String-">asMatcher</a></span>(<a href="../../../../org/apache/juneau/utils/Mutable.html" title="class in org.apache.juneau.utils">Mutable</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/util/regex/Matcher.html?is-external=true" title="class or interface in java.util.regex">Matcher</a>&gt;&nbsp;m,
          <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;regex)</code>
 <div class="block">Same as <a href="../../../../org/apache/juneau/rest/RequestHeader.html#asMatcher-java.lang.String-"><code>asMatcher(String)</code></a> but sets the value in a mutable for fluent calls.</div>
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 <td class="colFirst"><code><a href="../../../../org/apache/juneau/rest/RestResponse.html" title="class in org.apache.juneau.rest">RestResponse</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/juneau/rest/RequestHeader.html#asMatcher-org.apache.juneau.utils.Mutable-java.lang.String-int-">asMatcher</a></span>(<a href="../../../../org/apache/juneau/utils/Mutable.html" title="class in org.apache.juneau.utils">Mutable</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/util/regex/Matcher.html?is-external=true" title="class or interface in java.util.regex">Matcher</a>&gt;&nbsp;m,
          <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;regex,
          int&nbsp;flags)</code>
 <div class="block">Same as <a href="../../../../org/apache/juneau/rest/RequestHeader.html#asMatcher-java.lang.String-int-"><code>asMatcher(String,int)</code></a> but sets the value in a mutable for fluent calls.</div>
 </td>
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 <tr id="i9" class="rowColor">
 <td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/regex/Matcher.html?is-external=true" title="class or interface in java.util.regex">Matcher</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/juneau/rest/RequestHeader.html#asMatcher-java.util.regex.Pattern-">asMatcher</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/regex/Pattern.html?is-external=true" title="class or interface in java.util.regex">Pattern</a>&nbsp;pattern)</code>
 <div class="block">Matches the specified pattern against this header value.</div>
 </td>
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 <tr id="i10" class="altColor">
 <td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/regex/Matcher.html?is-external=true" title="class or interface in java.util.regex">Matcher</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/juneau/rest/RequestHeader.html#asMatcher-java.lang.String-">asMatcher</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;regex)</code>
 <div class="block">Matches the specified pattern against this header value.</div>
 </td>
 </tr>
 <tr id="i11" class="rowColor">
 <td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/regex/Matcher.html?is-external=true" title="class or interface in java.util.regex">Matcher</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/juneau/rest/RequestHeader.html#asMatcher-java.lang.String-int-">asMatcher</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;regex,
          int&nbsp;flags)</code>
 <div class="block">Matches the specified pattern against this header value.</div>
 </td>
 </tr>
 <tr id="i12" class="altColor">
 <td class="colFirst"><code>&lt;T&gt;&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Optional.html?is-external=true" title="class or interface in java.util">Optional</a>&lt;T&gt;</code></td>
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 <div class="block">Same as <a href="../../../../org/apache/juneau/rest/RequestHeader.html#as-java.lang.Class-"><code>as(Class)</code></a> but returns the value as an <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Optional.html?is-external=true" title="class or interface in java.util"><code>Optional</code></a>.</div>
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 <div class="block">Same as <a href="../../../../org/apache/juneau/rest/RequestHeader.html#as-org.apache.juneau.ClassMeta-"><code>as(ClassMeta)</code></a> but returns the value as an <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Optional.html?is-external=true" title="class or interface in java.util"><code>Optional</code></a>.</div>
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 <div class="block">Same as <a href="../../../../org/apache/juneau/rest/RequestHeader.html#asOptional-java.lang.Class-"><code>asOptional(Class)</code></a> but sets the value in a mutable for fluent calls.</div>
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 <td class="colFirst"><code>&lt;T&gt;&nbsp;<a href="../../../../org/apache/juneau/rest/RestResponse.html" title="class in org.apache.juneau.rest">RestResponse</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/juneau/rest/RequestHeader.html#asOptional-org.apache.juneau.utils.Mutable-org.apache.juneau.ClassMeta-">asOptional</a></span>(<a href="../../../../org/apache/juneau/utils/Mutable.html" title="class in org.apache.juneau.utils">Mutable</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Optional.html?is-external=true" title="class or interface in java.util">Optional</a>&lt;T&gt;&gt;&nbsp;m,
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 <div class="block">Same as <a href="../../../../org/apache/juneau/rest/RequestHeader.html#asOptional-org.apache.juneau.ClassMeta-"><code>asOptional(ClassMeta)</code></a> but sets the value in a mutable for fluent calls.</div>
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 <td class="colFirst"><code>&lt;T&gt;&nbsp;<a href="../../../../org/apache/juneau/rest/RestResponse.html" title="class in org.apache.juneau.rest">RestResponse</a></code></td>
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 <div class="block">Same as <a href="../../../../org/apache/juneau/rest/RequestHeader.html#as-java.lang.reflect.Type-java.lang.reflect.Type...-"><code>as(Type,Type...)</code></a> but returns the value as an <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Optional.html?is-external=true" title="class or interface in java.util"><code>Optional</code></a>.</div>
 </td>
 </tr>
 <tr id="i18" class="altColor">
 <td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/Optional.html?is-external=true" title="class or interface in java.util">Optional</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&gt;</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/juneau/rest/RequestHeader.html#asOptionalString--">asOptionalString</a></span>()</code>
 <div class="block">Returns the value of this header as an <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Optional.html?is-external=true" title="class or interface in java.util"><code>Optional</code></a>.</div>
 </td>
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 <tr id="i19" class="rowColor">
 <td class="colFirst"><code><a href="../../../../org/apache/juneau/rest/RestResponse.html" title="class in org.apache.juneau.rest">RestResponse</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/juneau/rest/RequestHeader.html#assertContains-java.lang.String...-">assertContains</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>...&nbsp;values)</code>
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 <tr id="i20" class="altColor">
 <td class="colFirst"><code><a href="../../../../org/apache/juneau/rest/RestResponse.html" title="class in org.apache.juneau.rest">RestResponse</a></code></td>
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 <tr id="i21" class="rowColor">
 <td class="colFirst"><code><a href="../../../../org/apache/juneau/rest/RestResponse.html" title="class in org.apache.juneau.rest">RestResponse</a></code></td>
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 <tr id="i22" class="altColor">
 <td class="colFirst"><code><a href="../../../../org/apache/juneau/rest/RestResponse.html" title="class in org.apache.juneau.rest">RestResponse</a></code></td>
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 <pre>public&nbsp;<a href="../../../../src-html/org/apache/juneau/rest/RequestHeader.html#line.65">RequestHeader</a>(<a href="../../../../org/apache/juneau/rest/RestRequest.html" title="class in org.apache.juneau.rest">RestRequest</a>&nbsp;request,
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                      <a href="https://hc.apache.org/httpcomponents-core-4.4.x/httpcore/apidocs/org/apache/http/Header.html?is-external=true" title="class or interface in org.apache.http">Header</a>&nbsp;header)</pre>
 <div class="block">Constructor.</div>
 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>request</code> - The request object.</dd>
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 <pre>public&nbsp;<a href="../../../../org/apache/juneau/rest/RequestHeader.html" title="class in org.apache.juneau.rest">RequestHeader</a>&nbsp;<a href="../../../../src-html/org/apache/juneau/rest/RequestHeader.html#line.86">schema</a>(<a href="../../../../org/apache/juneau/httppart/HttpPartSchema.html" title="class in org.apache.juneau.httppart">HttpPartSchema</a>&nbsp;value)</pre>
 <div class="block">Specifies the part schema for this header.

  <p>
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 <pre>public&nbsp;<a href="../../../../org/apache/juneau/rest/RequestHeader.html" title="class in org.apache.juneau.rest">RequestHeader</a>&nbsp;<a href="../../../../src-html/org/apache/juneau/rest/RequestHeader.html#line.102">parser</a>(<a href="../../../../org/apache/juneau/httppart/HttpPartParserSession.html" title="interface in org.apache.juneau.httppart">HttpPartParserSession</a>&nbsp;value)</pre>
 <div class="block">Specifies the part parser to use for this header.

  <p>
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 <dt><span class="paramLabel">Parameters:</span></dt>
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 <dt><span class="returnLabel">Returns:</span></dt>
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 <pre>public&nbsp;boolean&nbsp;<a href="../../../../src-html/org/apache/juneau/rest/RequestHeader.html#line.116">exists</a>()</pre>
 <div class="block">Returns <jk>true</jk> if this header exists on the response.</div>
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 <dt><span class="returnLabel">Returns:</span></dt>
 <dd><jk>true</jk> if this header exists on the response.</dd>
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 <div class="block">Returns the value of this header as a string.</div>
 <dl>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>The value of this header as a string, or <jk>null</jk> if header was not present.</dd>
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 <pre>public&nbsp;<a href="../../../../org/apache/juneau/rest/RestResponse.html" title="class in org.apache.juneau.rest">RestResponse</a>&nbsp;<a href="../../../../src-html/org/apache/juneau/rest/RequestHeader.html#line.135">asString</a>(<a href="../../../../org/apache/juneau/utils/Mutable.html" title="class in org.apache.juneau.utils">Mutable</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&gt;&nbsp;m)</pre>
 <div class="block">Same as <a href="../../../../org/apache/juneau/rest/RequestHeader.html#asString--"><code>asString()</code></a> but sets the value in a mutable for fluent calls.</div>
 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>m</code> - The mutable to set the header value in.</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>The response object (for method chaining).</dd>
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 <h4>asOptionalString</h4>
 <pre>public&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Optional.html?is-external=true" title="class or interface in java.util">Optional</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&gt;&nbsp;<a href="../../../../src-html/org/apache/juneau/rest/RequestHeader.html#line.145">asOptionalString</a>()</pre>
 <div class="block">Returns the value of this header as an <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Optional.html?is-external=true" title="class or interface in java.util"><code>Optional</code></a>.</div>
 <dl>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>The value of this header as an <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Optional.html?is-external=true" title="class or interface in java.util"><code>Optional</code></a>, or an empty optional if header was not present.</dd>
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 <h4>asStringOrElse</h4>
 <pre>public&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;<a href="../../../../src-html/org/apache/juneau/rest/RequestHeader.html#line.155">asStringOrElse</a>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;def)</pre>
 <div class="block">Returns the value of this header as a string with a default value.</div>
 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>def</code> - The default value.</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>The value of this header as a string, or the default value if header was not present.</dd>
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 <h4>asStringOrElse</h4>
 <pre>public&nbsp;<a href="../../../../org/apache/juneau/rest/RestResponse.html" title="class in org.apache.juneau.rest">RestResponse</a>&nbsp;<a href="../../../../src-html/org/apache/juneau/rest/RequestHeader.html#line.166">asStringOrElse</a>(<a href="../../../../org/apache/juneau/utils/Mutable.html" title="class in org.apache.juneau.utils">Mutable</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&gt;&nbsp;m,
                                    <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;def)</pre>
 <div class="block">Same as <a href="../../../../org/apache/juneau/rest/RequestHeader.html#asStringOrElse-java.lang.String-"><code>asStringOrElse(String)</code></a> but sets the value in a mutable for fluent calls.</div>
 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>m</code> - The mutable to set the header value in.</dd>
 <dd><code>def</code> - The default value.</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>The response object (for method chaining).</dd>
 </dl>
 </li>
 </ul>
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 <pre>public&nbsp;&lt;T&gt;&nbsp;T&nbsp;<a href="../../../../src-html/org/apache/juneau/rest/RequestHeader.html#line.180">as</a>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/reflect/Type.html?is-external=true" title="class or interface in java.lang.reflect">Type</a>&nbsp;type,
                 <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/reflect/Type.html?is-external=true" title="class or interface in java.lang.reflect">Type</a>...&nbsp;args)
          throws <a href="../../../../org/apache/juneau/parser/ParseException.html" title="class in org.apache.juneau.parser">ParseException</a></pre>
 <div class="block">Converts this header to the specified type.</div>
 <dl>
 <dt><span class="paramLabel">Type Parameters:</span></dt>
 <dd><code>T</code> - The type to convert to.</dd>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>type</code> - The type to convert to.</dd>
 <dd><code>args</code> - The type parameters.</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>The converted type, or <jk>null</jk> if header is not present.</dd>
 <dt><span class="throwsLabel">Throws:</span></dt>
 <dd><code><a href="../../../../org/apache/juneau/parser/ParseException.html" title="class in org.apache.juneau.parser">ParseException</a></code> - If value could not be parsed.</dd>
 </dl>
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 <pre>public&nbsp;&lt;T&gt;&nbsp;<a href="../../../../org/apache/juneau/rest/RestResponse.html" title="class in org.apache.juneau.rest">RestResponse</a>&nbsp;<a href="../../../../src-html/org/apache/juneau/rest/RequestHeader.html#line.194">as</a>(<a href="../../../../org/apache/juneau/utils/Mutable.html" title="class in org.apache.juneau.utils">Mutable</a>&lt;T&gt;&nbsp;m,
                            <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/reflect/Type.html?is-external=true" title="class or interface in java.lang.reflect">Type</a>&nbsp;type,
                            <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/reflect/Type.html?is-external=true" title="class or interface in java.lang.reflect">Type</a>...&nbsp;args)
                     throws <a href="../../../../org/apache/juneau/parser/ParseException.html" title="class in org.apache.juneau.parser">ParseException</a></pre>
 <div class="block">Same as <a href="../../../../org/apache/juneau/rest/RequestHeader.html#as-java.lang.reflect.Type-java.lang.reflect.Type...-"><code>as(Type,Type...)</code></a> but sets the value in a mutable for fluent calls.</div>
 <dl>
 <dt><span class="paramLabel">Type Parameters:</span></dt>
 <dd><code>T</code> - The type to convert to.</dd>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>m</code> - The mutable to set the parsed header value in.</dd>
 <dd><code>type</code> - The type to convert to.</dd>
 <dd><code>args</code> - The type parameters.</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>The response object (for method chaining).</dd>
 <dt><span class="throwsLabel">Throws:</span></dt>
 <dd><code><a href="../../../../org/apache/juneau/parser/ParseException.html" title="class in org.apache.juneau.parser">ParseException</a></code> - If value could not be parsed.</dd>
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 <pre>public&nbsp;&lt;T&gt;&nbsp;T&nbsp;<a href="../../../../src-html/org/apache/juneau/rest/RequestHeader.html#line.207">as</a>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</a>&lt;T&gt;&nbsp;type)
          throws <a href="../../../../org/apache/juneau/parser/ParseException.html" title="class in org.apache.juneau.parser">ParseException</a></pre>
 <div class="block">Converts this header to the specified type.</div>
 <dl>
 <dt><span class="paramLabel">Type Parameters:</span></dt>
 <dd><code>T</code> - The type to convert to.</dd>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>type</code> - The type to convert to.</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>The converted type, or <jk>null</jk> if header is not present.</dd>
 <dt><span class="throwsLabel">Throws:</span></dt>
 <dd><code><a href="../../../../org/apache/juneau/parser/ParseException.html" title="class in org.apache.juneau.parser">ParseException</a></code> - If value could not be parsed.</dd>
 </dl>
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 <pre>public&nbsp;&lt;T&gt;&nbsp;<a href="../../../../org/apache/juneau/rest/RestResponse.html" title="class in org.apache.juneau.rest">RestResponse</a>&nbsp;<a href="../../../../src-html/org/apache/juneau/rest/RequestHeader.html#line.220">as</a>(<a href="../../../../org/apache/juneau/utils/Mutable.html" title="class in org.apache.juneau.utils">Mutable</a>&lt;T&gt;&nbsp;m,
                            <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</a>&lt;T&gt;&nbsp;type)
                     throws <a href="../../../../org/apache/juneau/parser/ParseException.html" title="class in org.apache.juneau.parser">ParseException</a></pre>
 <div class="block">Same as <a href="../../../../org/apache/juneau/rest/RequestHeader.html#as-java.lang.Class-"><code>as(Class)</code></a> but sets the value in a mutable for fluent calls.</div>
 <dl>
 <dt><span class="paramLabel">Type Parameters:</span></dt>
 <dd><code>T</code> - The type to convert to.</dd>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>m</code> - The mutable to set the parsed header value in.</dd>
 <dd><code>type</code> - The type to convert to.</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>The response object (for method chaining).</dd>
 <dt><span class="throwsLabel">Throws:</span></dt>
 <dd><code><a href="../../../../org/apache/juneau/parser/ParseException.html" title="class in org.apache.juneau.parser">ParseException</a></code> - If value could not be parsed.</dd>
 </dl>
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 <h4>as</h4>
 <pre>public&nbsp;&lt;T&gt;&nbsp;T&nbsp;<a href="../../../../src-html/org/apache/juneau/rest/RequestHeader.html#line.233">as</a>(<a href="../../../../org/apache/juneau/ClassMeta.html" title="class in org.apache.juneau">ClassMeta</a>&lt;T&gt;&nbsp;type)
          throws <a href="../../../../org/apache/juneau/parser/ParseException.html" title="class in org.apache.juneau.parser">ParseException</a></pre>
 <div class="block">Converts this header to the specified type.</div>
 <dl>
 <dt><span class="paramLabel">Type Parameters:</span></dt>
 <dd><code>T</code> - The type to convert to.</dd>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>type</code> - The type to convert to.</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>The converted type, or <jk>null</jk> if header is not present.</dd>
 <dt><span class="throwsLabel">Throws:</span></dt>
 <dd><code><a href="../../../../org/apache/juneau/parser/ParseException.html" title="class in org.apache.juneau.parser">ParseException</a></code> - If value could not be parsed.</dd>
 </dl>
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 <h4>as</h4>
 <pre>public&nbsp;&lt;T&gt;&nbsp;<a href="../../../../org/apache/juneau/rest/RestResponse.html" title="class in org.apache.juneau.rest">RestResponse</a>&nbsp;<a href="../../../../src-html/org/apache/juneau/rest/RequestHeader.html#line.246">as</a>(<a href="../../../../org/apache/juneau/utils/Mutable.html" title="class in org.apache.juneau.utils">Mutable</a>&lt;T&gt;&nbsp;m,
                            <a href="../../../../org/apache/juneau/ClassMeta.html" title="class in org.apache.juneau">ClassMeta</a>&lt;T&gt;&nbsp;type)
                     throws <a href="../../../../org/apache/juneau/parser/ParseException.html" title="class in org.apache.juneau.parser">ParseException</a></pre>
 <div class="block">Same as <a href="../../../../org/apache/juneau/rest/RequestHeader.html#as-org.apache.juneau.ClassMeta-"><code>as(ClassMeta)</code></a> but sets the value in a mutable for fluent calls.</div>
 <dl>
 <dt><span class="paramLabel">Type Parameters:</span></dt>
 <dd><code>T</code> - The type to convert to.</dd>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>m</code> - The mutable to set the parsed header value in.</dd>
 <dd><code>type</code> - The type to convert to.</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>The response object (for method chaining).</dd>
 <dt><span class="throwsLabel">Throws:</span></dt>
 <dd><code><a href="../../../../org/apache/juneau/parser/ParseException.html" title="class in org.apache.juneau.parser">ParseException</a></code> - If value could not be parsed.</dd>
 </dl>
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 <h4>asOptional</h4>
 <pre>public&nbsp;&lt;T&gt;&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Optional.html?is-external=true" title="class or interface in java.util">Optional</a>&lt;T&gt;&nbsp;<a href="../../../../src-html/org/apache/juneau/rest/RequestHeader.html#line.260">asOptional</a>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/reflect/Type.html?is-external=true" title="class or interface in java.lang.reflect">Type</a>&nbsp;type,
                                   <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/reflect/Type.html?is-external=true" title="class or interface in java.lang.reflect">Type</a>...&nbsp;args)
                            throws <a href="../../../../org/apache/juneau/parser/ParseException.html" title="class in org.apache.juneau.parser">ParseException</a></pre>
 <div class="block">Same as <a href="../../../../org/apache/juneau/rest/RequestHeader.html#as-java.lang.reflect.Type-java.lang.reflect.Type...-"><code>as(Type,Type...)</code></a> but returns the value as an <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Optional.html?is-external=true" title="class or interface in java.util"><code>Optional</code></a>.</div>
 <dl>
 <dt><span class="paramLabel">Type Parameters:</span></dt>
 <dd><code>T</code> - The type to convert to.</dd>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>type</code> - The type to convert to.</dd>
 <dd><code>args</code> - The type parameters.</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>The parsed value as an <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Optional.html?is-external=true" title="class or interface in java.util"><code>Optional</code></a>, or an empty optional if header was not present.</dd>
 <dt><span class="throwsLabel">Throws:</span></dt>
 <dd><code><a href="../../../../org/apache/juneau/parser/ParseException.html" title="class in org.apache.juneau.parser">ParseException</a></code> - If value could not be parsed.</dd>
 </dl>
 </li>
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 <a name="asOptional-org.apache.juneau.utils.Mutable-java.lang.reflect.Type-java.lang.reflect.Type...-">
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 <h4>asOptional</h4>
 <pre>public&nbsp;&lt;T&gt;&nbsp;<a href="../../../../org/apache/juneau/rest/RestResponse.html" title="class in org.apache.juneau.rest">RestResponse</a>&nbsp;<a href="../../../../src-html/org/apache/juneau/rest/RequestHeader.html#line.274">asOptional</a>(<a href="../../../../org/apache/juneau/utils/Mutable.html" title="class in org.apache.juneau.utils">Mutable</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Optional.html?is-external=true" title="class or interface in java.util">Optional</a>&lt;T&gt;&gt;&nbsp;m,
                                    <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/reflect/Type.html?is-external=true" title="class or interface in java.lang.reflect">Type</a>&nbsp;type,
                                    <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/reflect/Type.html?is-external=true" title="class or interface in java.lang.reflect">Type</a>...&nbsp;args)
                             throws <a href="../../../../org/apache/juneau/parser/ParseException.html" title="class in org.apache.juneau.parser">ParseException</a></pre>
 <div class="block">Same as <a href="../../../../org/apache/juneau/rest/RequestHeader.html#asOptional-java.lang.reflect.Type-java.lang.reflect.Type...-"><code>asOptional(Type,Type...)</code></a> but sets the value in a mutable for fluent calls.</div>
 <dl>
 <dt><span class="paramLabel">Type Parameters:</span></dt>
 <dd><code>T</code> - The type to convert to.</dd>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>m</code> - The mutable to set the parsed header value in.</dd>
 <dd><code>type</code> - The type to convert to.</dd>
 <dd><code>args</code> - The type parameters.</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>The response object (for method chaining).</dd>
 <dt><span class="throwsLabel">Throws:</span></dt>
 <dd><code><a href="../../../../org/apache/juneau/parser/ParseException.html" title="class in org.apache.juneau.parser">ParseException</a></code> - If value could not be parsed.</dd>
 </dl>
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 <h4>asOptional</h4>
 <pre>public&nbsp;&lt;T&gt;&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Optional.html?is-external=true" title="class or interface in java.util">Optional</a>&lt;T&gt;&nbsp;<a href="../../../../src-html/org/apache/juneau/rest/RequestHeader.html#line.287">asOptional</a>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</a>&lt;T&gt;&nbsp;type)
                            throws <a href="../../../../org/apache/juneau/parser/ParseException.html" title="class in org.apache.juneau.parser">ParseException</a></pre>
 <div class="block">Same as <a href="../../../../org/apache/juneau/rest/RequestHeader.html#as-java.lang.Class-"><code>as(Class)</code></a> but returns the value as an <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Optional.html?is-external=true" title="class or interface in java.util"><code>Optional</code></a>.</div>
 <dl>
 <dt><span class="paramLabel">Type Parameters:</span></dt>
 <dd><code>T</code> - The type to convert to.</dd>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>type</code> - The type to convert to.</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>The parsed value as an <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Optional.html?is-external=true" title="class or interface in java.util"><code>Optional</code></a>, or an empty optional if header was not present.</dd>
 <dt><span class="throwsLabel">Throws:</span></dt>
 <dd><code><a href="../../../../org/apache/juneau/parser/ParseException.html" title="class in org.apache.juneau.parser">ParseException</a></code> - If value could not be parsed.</dd>
 </dl>
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 <pre>public&nbsp;&lt;T&gt;&nbsp;<a href="../../../../org/apache/juneau/rest/RestResponse.html" title="class in org.apache.juneau.rest">RestResponse</a>&nbsp;<a href="../../../../src-html/org/apache/juneau/rest/RequestHeader.html#line.300">asOptional</a>(<a href="../../../../org/apache/juneau/utils/Mutable.html" title="class in org.apache.juneau.utils">Mutable</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Optional.html?is-external=true" title="class or interface in java.util">Optional</a>&lt;T&gt;&gt;&nbsp;m,
                                    <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</a>&lt;T&gt;&nbsp;type)
                             throws <a href="../../../../org/apache/juneau/parser/ParseException.html" title="class in org.apache.juneau.parser">ParseException</a></pre>
 <div class="block">Same as <a href="../../../../org/apache/juneau/rest/RequestHeader.html#asOptional-java.lang.Class-"><code>asOptional(Class)</code></a> but sets the value in a mutable for fluent calls.</div>
 <dl>
 <dt><span class="paramLabel">Type Parameters:</span></dt>
 <dd><code>T</code> - The type to convert to.</dd>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>m</code> - The mutable to set the parsed header value in.</dd>
 <dd><code>type</code> - The type to convert to.</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>The response object (for method chaining).</dd>
 <dt><span class="throwsLabel">Throws:</span></dt>
 <dd><code><a href="../../../../org/apache/juneau/parser/ParseException.html" title="class in org.apache.juneau.parser">ParseException</a></code> - If value could not be parsed.</dd>
 </dl>
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 <h4>asOptional</h4>
 <pre>public&nbsp;&lt;T&gt;&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Optional.html?is-external=true" title="class or interface in java.util">Optional</a>&lt;T&gt;&nbsp;<a href="../../../../src-html/org/apache/juneau/rest/RequestHeader.html#line.313">asOptional</a>(<a href="../../../../org/apache/juneau/ClassMeta.html" title="class in org.apache.juneau">ClassMeta</a>&lt;T&gt;&nbsp;type)
                            throws <a href="../../../../org/apache/juneau/parser/ParseException.html" title="class in org.apache.juneau.parser">ParseException</a></pre>
 <div class="block">Same as <a href="../../../../org/apache/juneau/rest/RequestHeader.html#as-org.apache.juneau.ClassMeta-"><code>as(ClassMeta)</code></a> but returns the value as an <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Optional.html?is-external=true" title="class or interface in java.util"><code>Optional</code></a>.</div>
 <dl>
 <dt><span class="paramLabel">Type Parameters:</span></dt>
 <dd><code>T</code> - The type to convert to.</dd>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>type</code> - The type to convert to.</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>The parsed value as an <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Optional.html?is-external=true" title="class or interface in java.util"><code>Optional</code></a>, or an empty optional if header was not present.</dd>
 <dt><span class="throwsLabel">Throws:</span></dt>
 <dd><code><a href="../../../../org/apache/juneau/parser/ParseException.html" title="class in org.apache.juneau.parser">ParseException</a></code> - If value could not be parsed.</dd>
 </dl>
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 <!--   -->
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 <h4>asOptional</h4>
 <pre>public&nbsp;&lt;T&gt;&nbsp;<a href="../../../../org/apache/juneau/rest/RestResponse.html" title="class in org.apache.juneau.rest">RestResponse</a>&nbsp;<a href="../../../../src-html/org/apache/juneau/rest/RequestHeader.html#line.326">asOptional</a>(<a href="../../../../org/apache/juneau/utils/Mutable.html" title="class in org.apache.juneau.utils">Mutable</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Optional.html?is-external=true" title="class or interface in java.util">Optional</a>&lt;T&gt;&gt;&nbsp;m,
                                    <a href="../../../../org/apache/juneau/ClassMeta.html" title="class in org.apache.juneau">ClassMeta</a>&lt;T&gt;&nbsp;type)
                             throws <a href="../../../../org/apache/juneau/parser/ParseException.html" title="class in org.apache.juneau.parser">ParseException</a></pre>
 <div class="block">Same as <a href="../../../../org/apache/juneau/rest/RequestHeader.html#asOptional-org.apache.juneau.ClassMeta-"><code>asOptional(ClassMeta)</code></a> but sets the value in a mutable for fluent calls.</div>
 <dl>
 <dt><span class="paramLabel">Type Parameters:</span></dt>
 <dd><code>T</code> - The type to convert to.</dd>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>m</code> - The mutable to set the parsed header value in.</dd>
 <dd><code>type</code> - The type to convert to.</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>The response object (for method chaining).</dd>
 <dt><span class="throwsLabel">Throws:</span></dt>
 <dd><code><a href="../../../../org/apache/juneau/parser/ParseException.html" title="class in org.apache.juneau.parser">ParseException</a></code> - If value could not be parsed.</dd>
 </dl>
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 <a name="asMatcher-java.util.regex.Pattern-">
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 <ul class="blockList">
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 <h4>asMatcher</h4>
 <pre>public&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/util/regex/Matcher.html?is-external=true" title="class or interface in java.util.regex">Matcher</a>&nbsp;<a href="../../../../src-html/org/apache/juneau/rest/RequestHeader.html#line.349">asMatcher</a>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/regex/Pattern.html?is-external=true" title="class or interface in java.util.regex">Pattern</a>&nbsp;pattern)</pre>
 <div class="block">Matches the specified pattern against this header value.

  <h5 class='section'>Example:</h5>
  <p class='bcode w800'>
    <jc>// Parse header using a regular expression.</jc>
    Matcher m = client
       .get(<jsf>URL</jsf>)
       .run()
       .getHeader(<js>"Content-Type"</js>).asMatcher(Pattern.<jsm>compile</jsm>(<js>"application/(.*)"</js>));

    <jk>if</jk> (m.matches())
       String mediaType = m.group(1);
  </p></div>
 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>pattern</code> - The regular expression pattern to match.</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>The matcher.</dd>
 </dl>
 </li>
 </ul>
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                               <a href="https://docs.oracle.com/javase/8/docs/api/java/util/regex/Pattern.html?is-external=true" title="class or interface in java.util.regex">Pattern</a>&nbsp;pattern)</pre>
 <div class="block">Same as <a href="../../../../org/apache/juneau/rest/RequestHeader.html#asMatcher-java.util.regex.Pattern-"><code>asMatcher(Pattern)</code></a> but sets the value in a mutable for fluent calls.

  <h5 class='section'>Example:</h5>
  <p class='bcode w800'>
    <jc>// Parse header using a regular expression.</jc>
    Mutable&lt;Matcher&gt; m = Mutable.create();
    Matcher m = client
       .get(<jsf>URL</jsf>)
       .run()
       .getHeader(<js>"Content-Type"</js>).asMatcher(m, Pattern.<jsm>compile</jsm>(<js>"application/(.*)"</js>));

    <jk>if</jk> (m.get().matches())
       String mediaType = m.get().group(1);
  </p></div>
 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>m</code> - The mutable to set the value in.</dd>
 <dd><code>pattern</code> - The regular expression pattern to match.</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>The response object (for method chaining).</dd>
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 <div class="block">Matches the specified pattern against this header value.

  <h5 class='section'>Example:</h5>
  <p class='bcode w800'>
    <jc>// Parse header using a regular expression.</jc>
    Matcher m = client
       .get(<jsf>URL</jsf>)
       .run()
       .getHeader(<js>"Content-Type"</js>).asMatcher(<js>"application/(.*)"</js>);

    <jk>if</jk> (m.matches())
       String mediaType = m.group(1);
  </p></div>
 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>regex</code> - The regular expression pattern to match.</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>The matcher.</dd>
 </dl>
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                               <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;regex)</pre>
 <div class="block">Same as <a href="../../../../org/apache/juneau/rest/RequestHeader.html#asMatcher-java.lang.String-"><code>asMatcher(String)</code></a> but sets the value in a mutable for fluent calls.

  <h5 class='section'>Example:</h5>
  <p class='bcode w800'>
    <jc>// Parse header using a regular expression.</jc>
    Mutable&lt;Matcher&gt; m = Mutable.create();
    Matcher m = client
       .get(<jsf>URL</jsf>)
       .run()
       .getHeader(<js>"Content-Type"</js>).asMatcher(m, <js>"application/(.*)"</js>);

    <jk>if</jk> (m.get().matches())
       String mediaType = m.get().group(1);
  </p></div>
 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>m</code> - The mutable to set the value in.</dd>
 <dd><code>regex</code> - The regular expression pattern to match.</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>The response object (for method chaining).</dd>
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                          int&nbsp;flags)</pre>
 <div class="block">Matches the specified pattern against this header value.

  <h5 class='section'>Example:</h5>
  <p class='bcode w800'>
    <jc>// Parse header using a regular expression.</jc>
    Matcher m = client
       .get(<jsf>URL</jsf>)
       .run()
       .getHeader(<js>"Content-Type"</js>).asMatcher(<js>"application/(.*)"</js>, <jsf>CASE_INSENSITIVE</jsf>);

    <jk>if</jk> (m.matches())
       String mediaType = m.group(1);
  </p></div>
 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>regex</code> - The regular expression pattern to match.</dd>
 <dd><code>flags</code> - Pattern match flags.  See <a href="https://docs.oracle.com/javase/8/docs/api/java/util/regex/Pattern.html?is-external=true#compile-java.lang.String-int-" title="class or interface in java.util.regex"><code>Pattern.compile(String, int)</code></a>.</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>The matcher.</dd>
 </dl>
 </li>
 </ul>
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 <pre>public&nbsp;<a href="../../../../org/apache/juneau/rest/RestResponse.html" title="class in org.apache.juneau.rest">RestResponse</a>&nbsp;<a href="../../../../src-html/org/apache/juneau/rest/RequestHeader.html#line.469">asMatcher</a>(<a href="../../../../org/apache/juneau/utils/Mutable.html" title="class in org.apache.juneau.utils">Mutable</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/util/regex/Matcher.html?is-external=true" title="class or interface in java.util.regex">Matcher</a>&gt;&nbsp;m,
                               <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;regex,
                               int&nbsp;flags)</pre>
 <div class="block">Same as <a href="../../../../org/apache/juneau/rest/RequestHeader.html#asMatcher-java.lang.String-int-"><code>asMatcher(String,int)</code></a> but sets the value in a mutable for fluent calls.

  <h5 class='section'>Example:</h5>
  <p class='bcode w800'>
    <jc>// Parse header using a regular expression.</jc>
    Mutable&lt;Matcher&gt; m = Mutable.create();
    Matcher m = client
       .get(<jsf>URL</jsf>)
       .run()
       .getHeader(<js>"Content-Type"</js>).asMatcher(m, <js>"application/(.*)"</js>, <jsf>CASE_INSENSITIVE</jsf>);

    <jk>if</jk> (m.get().matches())
       String mediaType = m.get().group(1);
  </p></div>
 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>m</code> - The mutable to set the value in.</dd>
 <dd><code>regex</code> - The regular expression pattern to match.</dd>
 <dd><code>flags</code> - Pattern match flags.  See <a href="https://docs.oracle.com/javase/8/docs/api/java/util/regex/Pattern.html?is-external=true#compile-java.lang.String-int-" title="class or interface in java.util.regex"><code>Pattern.compile(String, int)</code></a>.</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>The response object (for method chaining).</dd>
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 </li>
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 <a name="toResponse--">
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 <pre>public&nbsp;<a href="../../../../org/apache/juneau/rest/RestResponse.html" title="class in org.apache.juneau.rest">RestResponse</a>&nbsp;<a href="../../../../src-html/org/apache/juneau/rest/RequestHeader.html#line.479">toResponse</a>()</pre>
 <div class="block">Returns the response that created this object.</div>
 <dl>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>The response that created this object.</dd>
 </dl>
 </li>
 </ul>
 <a name="assertExists--">
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 <pre>public&nbsp;<a href="../../../../org/apache/juneau/rest/RestResponse.html" title="class in org.apache.juneau.rest">RestResponse</a>&nbsp;<a href="../../../../src-html/org/apache/juneau/rest/RequestHeader.html#line.502">assertExists</a>()
                           throws <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/AssertionError.html?is-external=true" title="class or interface in java.lang">AssertionError</a></pre>
 <div class="block">Asserts that the header equals the specified value.

  <h5 class='section'>Example:</h5>
  <p class='bcode w800'>
    <jc>// Validates the content type header is provided.</jc>
    client
       .get(<jsf>URL</jsf>)
       .run()
       .getHeader(<js>"Content-Type"</js>).assertExists();
  </p></div>
 <dl>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>The response object (for method chaining).</dd>
 <dt><span class="throwsLabel">Throws:</span></dt>
 <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/AssertionError.html?is-external=true" title="class or interface in java.lang">AssertionError</a></code> - If assertion failed.</dd>
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                          throws <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/AssertionError.html?is-external=true" title="class or interface in java.lang">AssertionError</a></pre>
 <div class="block">Asserts that the header equals the specified value.

  <h5 class='section'>Example:</h5>
  <p class='bcode w800'>
    <jc>// Validates the content type is JSON.</jc>
    client
       .get(<jsf>URL</jsf>)
       .run()
       .getHeader(<js>"Content-Type"</js>).assertValue(<js>"application/json"</js>);
  </p></div>
 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>value</code> - The value to test for.</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>The response object (for method chaining).</dd>
 <dt><span class="throwsLabel">Throws:</span></dt>
 <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/AssertionError.html?is-external=true" title="class or interface in java.lang">AssertionError</a></code> - If assertion failed.</dd>
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                          throws <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/AssertionError.html?is-external=true" title="class or interface in java.lang">AssertionError</a></pre>
 <div class="block">Asserts that the header passes the specified predicate test.

  <h5 class='section'>Example:</h5>
  <p class='bcode w800'>
    <jc>// Validates the content type is JSON.</jc>
    client
       .get(<jsf>URL</jsf>)
       .run()
       .getHeader(<js>"Content-Type"</js>).assertValue(x -&gt; x.equals(<js>"application/json"</js>));
  </p></div>
 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>test</code> - The predicate to test for.</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>The response object (for method chaining).</dd>
 <dt><span class="throwsLabel">Throws:</span></dt>
 <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/AssertionError.html?is-external=true" title="class or interface in java.lang">AssertionError</a></code> - If assertion failed.</dd>
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 <pre>public&nbsp;<a href="../../../../org/apache/juneau/rest/RestResponse.html" title="class in org.apache.juneau.rest">RestResponse</a>&nbsp;<a href="../../../../src-html/org/apache/juneau/rest/RequestHeader.html#line.569">assertContains</a>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>...&nbsp;values)
                             throws <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/AssertionError.html?is-external=true" title="class or interface in java.lang">AssertionError</a></pre>
 <div class="block">Asserts that the header contains all the specified substrings.

  <h5 class='section'>Example:</h5>
  <p class='bcode w800'>
    <jc>// Validates the content type is JSON.</jc>
    client
       .get(<jsf>URL</jsf>)
       .run()
       .getHeader(<js>"Content-Type"</js>).assertValueContains(<js>"json"</js>);
  </p></div>
 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>values</code> - The substrings to test for.</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>The response object (for method chaining).</dd>
 <dt><span class="throwsLabel">Throws:</span></dt>
 <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/AssertionError.html?is-external=true" title="class or interface in java.lang">AssertionError</a></code> - If assertion failed.</dd>
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 <pre>public&nbsp;<a href="../../../../org/apache/juneau/rest/RestResponse.html" title="class in org.apache.juneau.rest">RestResponse</a>&nbsp;<a href="../../../../src-html/org/apache/juneau/rest/RequestHeader.html#line.593">assertMatches</a>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;regex)
                            throws <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/AssertionError.html?is-external=true" title="class or interface in java.lang">AssertionError</a></pre>
 <div class="block">Asserts that the header matches the specified regular expression.

  <h5 class='section'>Example:</h5>
  <p class='bcode w800'>
    <jc>// Validates the content type is JSON.</jc>
    client
       .get(<jsf>URL</jsf>)
       .run()
       .getHeader(<js>"Content-Type"</js>).assertValueMatches(<js>".*json.*"</js>);
  </p></div>
 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>regex</code> - The pattern to test for.</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>The response object (for method chaining).</dd>
 <dt><span class="throwsLabel">Throws:</span></dt>
 <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/AssertionError.html?is-external=true" title="class or interface in java.lang">AssertionError</a></code> - If assertion failed.</dd>
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 <pre>public&nbsp;<a href="../../../../org/apache/juneau/rest/RestResponse.html" title="class in org.apache.juneau.rest">RestResponse</a>&nbsp;<a href="../../../../src-html/org/apache/juneau/rest/RequestHeader.html#line.614">assertMatches</a>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;regex,
                                   int&nbsp;flags)
                            throws <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/AssertionError.html?is-external=true" title="class or interface in java.lang">AssertionError</a></pre>
 <div class="block">Asserts that the header matches the specified regular expression.

  <h5 class='section'>Example:</h5>
  <p class='bcode w800'>
    <jc>// Validates the content type is JSON.</jc>
    client
       .get(<jsf>URL</jsf>)
       .run()
       .getHeader(<js>"Content-Type"</js>).assertValueMatches(<js>".*json.*"</js>, <jsf>CASE_INSENSITIVE</jsf>);
  </p></div>
 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>regex</code> - The pattern to test for.</dd>
 <dd><code>flags</code> - Pattern match flags.  See <a href="https://docs.oracle.com/javase/8/docs/api/java/util/regex/Pattern.html?is-external=true#compile-java.lang.String-int-" title="class or interface in java.util.regex"><code>Pattern.compile(String, int)</code></a>.</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>The response object (for method chaining).</dd>
 <dt><span class="throwsLabel">Throws:</span></dt>
 <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/AssertionError.html?is-external=true" title="class or interface in java.lang">AssertionError</a></code> - If assertion failed.</dd>
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 <pre>public&nbsp;<a href="../../../../org/apache/juneau/rest/RestResponse.html" title="class in org.apache.juneau.rest">RestResponse</a>&nbsp;<a href="../../../../src-html/org/apache/juneau/rest/RequestHeader.html#line.641">assertMatches</a>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/regex/Pattern.html?is-external=true" title="class or interface in java.util.regex">Pattern</a>&nbsp;pattern)
                            throws <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/AssertionError.html?is-external=true" title="class or interface in java.lang">AssertionError</a></pre>
 <div class="block">Asserts that the header matches the specified pattern.

  <p>
  The pattern can contain <js>"*"</js> to represent zero or more arbitrary characters.

  <h5 class='section'>Example:</h5>
  <p class='bcode w800'>
    <jc>// Validates the content type is JSON.</jc>
    Pattern p = Pattern.<jsm>compile</jsm>(<js>".*application\\/json.*"</js>);
    client
       .get(<jsf>URL</jsf>)
       .run()
       .getHeader(<js>"Content-Type"</js>).assertValueMatches(p);
  </p></div>
 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>pattern</code> - The pattern to test for.</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>The response object (for method chaining).</dd>
 <dt><span class="throwsLabel">Throws:</span></dt>
 <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/AssertionError.html?is-external=true" title="class or interface in java.lang">AssertionError</a></code> - If assertion failed.</dd>
 </dl>
 </li>
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 <a name="getName--">
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 <h4>getName</h4>
 <pre>public&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;<a href="../../../../src-html/org/apache/juneau/rest/RequestHeader.html#line.658">getName</a>()</pre>
 <div class="block">Gets the name of this pair.</div>
 <dl>
 <dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
 <dd><code><a href="https://hc.apache.org/httpcomponents-core-4.4.x/httpcore/apidocs/org/apache/http/NameValuePair.html?is-external=true#getName--" title="class or interface in org.apache.http">getName</a></code>&nbsp;in interface&nbsp;<code><a href="https://hc.apache.org/httpcomponents-core-4.4.x/httpcore/apidocs/org/apache/http/NameValuePair.html?is-external=true" title="class or interface in org.apache.http">NameValuePair</a></code></dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>The name of this pair, never <jk>null</jk>.</dd>
 </dl>
 </li>
 </ul>
 <a name="getValue--">
 <!--   -->
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 <ul class="blockList">
 <li class="blockList">
 <h4>getValue</h4>
 <pre>public&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;<a href="../../../../src-html/org/apache/juneau/rest/RequestHeader.html#line.672">getValue</a>()</pre>
 <div class="block">Gets the value of this pair.

  <ul class='notes'>
    <li><a href="../../../../org/apache/juneau/rest/RequestHeader.html#asString--"><code>asString()</code></a> is an equivalent method and the preferred method for fluent-style coding.
  </ul></div>
 <dl>
 <dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
 <dd><code><a href="https://hc.apache.org/httpcomponents-core-4.4.x/httpcore/apidocs/org/apache/http/NameValuePair.html?is-external=true#getValue--" title="class or interface in org.apache.http">getValue</a></code>&nbsp;in interface&nbsp;<code><a href="https://hc.apache.org/httpcomponents-core-4.4.x/httpcore/apidocs/org/apache/http/NameValuePair.html?is-external=true" title="class or interface in org.apache.http">NameValuePair</a></code></dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>The value of this pair, may be <jk>null</jk>.</dd>
 </dl>
 </li>
 </ul>
 <a name="getElements--">
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 <li class="blockList">
 <h4>getElements</h4>
 <pre>public&nbsp;<a href="https://hc.apache.org/httpcomponents-core-4.4.x/httpcore/apidocs/org/apache/http/HeaderElement.html?is-external=true" title="class or interface in org.apache.http">HeaderElement</a>[]&nbsp;<a href="../../../../src-html/org/apache/juneau/rest/RequestHeader.html#line.683">getElements</a>()
                             throws <a href="https://hc.apache.org/httpcomponents-core-4.4.x/httpcore/apidocs/org/apache/http/ParseException.html?is-external=true" title="class or interface in org.apache.http">ParseException</a></pre>
 <div class="block">Parses the value.</div>
 <dl>
 <dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
 <dd><code><a href="https://hc.apache.org/httpcomponents-core-4.4.x/httpcore/apidocs/org/apache/http/Header.html?is-external=true#getElements--" title="class or interface in org.apache.http">getElements</a></code>&nbsp;in interface&nbsp;<code><a href="https://hc.apache.org/httpcomponents-core-4.4.x/httpcore/apidocs/org/apache/http/Header.html?is-external=true" title="class or interface in org.apache.http">Header</a></code></dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>An array of <a href="https://hc.apache.org/httpcomponents-core-4.4.x/httpcore/apidocs/org/apache/http/HeaderElement.html?is-external=true" title="class or interface in org.apache.http"><code>HeaderElement</code></a> entries, may be empty, but is never <jk>null</jk>.</dd>
 <dt><span class="throwsLabel">Throws:</span></dt>
 <dd><code><a href="https://hc.apache.org/httpcomponents-core-4.4.x/httpcore/apidocs/org/apache/http/ParseException.html?is-external=true" title="class or interface in org.apache.http">ParseException</a></code> - In case of a parsing error.</dd>
 </dl>
 </li>
 </ul>
 <a name="toString--">
 <!--   -->
 </a>
 <ul class="blockListLast">
 <li class="blockList">
 <h4>toString</h4>
 <pre>public&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;<a href="../../../../src-html/org/apache/juneau/rest/RequestHeader.html#line.688">toString</a>()</pre>
 <dl>
 <dt><span class="overrideSpecifyLabel">Overrides:</span></dt>
 <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#toString--" title="class or interface in java.lang">toString</a></code>&nbsp;in class&nbsp;<code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></code></dd>
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