> ## Documentation Index
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# GPUdbFileHandlerUtils

> GPUdbFileHandlerUtils — Kinetica Java API

<div className="kinetica-javadoc">
  <div className="header">
    <div className="sub-title"><span className="package-label-in-type">Package</span> <a href="/content/api/java/com/gpudb/filesystem/package-summary">com.gpudb.filesystem</a></div>
    <h1 title="Class GPUdbFileHandlerUtils" className="title">Class GPUdbFileHandlerUtils</h1>
  </div>

  <div className="inheritance" title="Inheritance Tree">
    <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" className="external-link">java.lang.Object</a>
    <div className="inheritance">com.gpudb.filesystem.GPUdbFileHandlerUtils</div>
  </div>

  <div className="section class-description" id="class-description">
    <hr />

    <div className="type-signature"><span className="modifiers">public class </span><span className="element-name type-name-label">GPUdbFileHandlerUtils</span> <span className="extends-implements">extends <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" className="external-link">Object</a></span></div>

    <div className="block">
      This is an internal class and not meant to be used by the end users of the filesystem API. The consequences of using this class directly in client code is not guaranteed and maybe undesirable.
      <p><span className="b">Note:</span> This class is public only because it is used by other public API classes within the filesystem package. External users should not use this class directly.</p>
    </div>
  </div>

  <div className="section summary">
    <ul className="summary-list">
      <li>
        <div className="section constructor-summary" id="constructor-summary">
          <h2>Constructor Summary</h2>
          <div className="caption"><span>Constructors</span></div>

          <div className="summary-table two-column-summary">
            <div className="table-header col-first">Constructor</div>
            <div className="table-header col-last">Description</div>
            <div className="col-constructor-name even-row-color"><code><a href="#%3Cinit%3E()" className="member-name-link">GPUdbFileHandlerUtils</a>()</code></div>
            <div className="col-last even-row-color"> </div>
          </div>
        </div>
      </li>

      <li>
        <div className="section method-summary" id="method-summary">
          <h2>Method Summary</h2>

          <div id="method-summary-table">
            <div className="table-tabs" role="tablist" aria-orientation="horizontal"><button id="method-summary-table-tab0" role="tab" aria-selected="true" aria-controls="method-summary-table.tabpanel" tabIndex="0" className="active-table-tab">All Methods</button><button id="method-summary-table-tab1" role="tab" aria-selected="false" aria-controls="method-summary-table.tabpanel" tabIndex="-1" className="table-tab">Static Methods</button><button id="method-summary-table-tab4" role="tab" aria-selected="false" aria-controls="method-summary-table.tabpanel" tabIndex="-1" className="table-tab">Concrete Methods</button></div>

            <div id="method-summary-table.tabpanel" role="tabpanel" aria-labelledby="method-summary-table-tab0">
              <div className="summary-table three-column-summary">
                <div className="table-header col-first">Modifier and Type</div>
                <div className="table-header col-second">Method</div>
                <div className="table-header col-last">Description</div>
                <div className="col-first even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code>static com.fasterxml.jackson.databind.ObjectMapper</code></div>
                <div className="col-second even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code><a href="#getJacksonObjectMapper()" className="member-name-link">getJacksonObjectMapper</a>()</code></div>

                <div className="col-last even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4">
                  <div className="block">Creates and returns a Jackson ObjectMapper configured with custom serializers.</div>
                </div>

                <div className="col-first odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code>static <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" className="external-link">String</a></code></div>
                <div className="col-second odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code><a href="#joinStrings(java.util.List)" className="member-name-link">joinStrings</a><wbr />(<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/List.html" title="class or interface in java.util" className="external-link">List</a>\<<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" className="external-link">String</a>> stringList)</code></div>
                <div className="col-last odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"> </div>
                <div className="col-first even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code>static <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" className="external-link">String</a></code></div>
                <div className="col-second even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code><a href="#joinStrings(java.util.List,char)" className="member-name-link">joinStrings</a><wbr />(<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/List.html" title="class or interface in java.util" className="external-link">List</a>\<<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" className="external-link">String</a>> stringList, char separator)</code></div>
                <div className="col-last even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"> </div>
                <div className="col-first odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code>static \<T> <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/Set.html" title="class or interface in java.util" className="external-link">Set</a><wbr />\<T></code></div>
                <div className="col-second odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code><a href="#setDifference(java.util.Set,java.util.Set)" className="member-name-link">setDifference</a><wbr />(<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/Set.html" title="class or interface in java.util" className="external-link">Set</a>\<T> setA, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/Set.html" title="class or interface in java.util" className="external-link">Set</a>\<T> setB)</code></div>
                <div className="col-last odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"> </div>
                <div className="col-first even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code>static \<T> <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/Set.html" title="class or interface in java.util" className="external-link">Set</a><wbr />\<T></code></div>
                <div className="col-second even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code><a href="#setIntersection(java.util.Set,java.util.Set)" className="member-name-link">setIntersection</a><wbr />(<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/Set.html" title="class or interface in java.util" className="external-link">Set</a>\<T> setA, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/Set.html" title="class or interface in java.util" className="external-link">Set</a>\<T> setB)</code></div>
                <div className="col-last even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"> </div>
              </div>
            </div>
          </div>

          <div className="inherited-list">
            <h3 id="methods-inherited-from-class-java.lang.Object">Methods inherited from class java.lang.<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" className="external-link">Object</a></h3>
            <code><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html#clone()" title="class or interface in java.lang" className="external-link">clone</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html#equals(java.lang.Object)" title="class or interface in java.lang" className="external-link">equals</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html#finalize()" title="class or interface in java.lang" className="external-link">finalize</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html#getClass()" title="class or interface in java.lang" className="external-link">getClass</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html#hashCode()" title="class or interface in java.lang" className="external-link">hashCode</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html#notify()" title="class or interface in java.lang" className="external-link">notify</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html#notifyAll()" title="class or interface in java.lang" className="external-link">notifyAll</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html#toString()" title="class or interface in java.lang" className="external-link">toString</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html#wait()" title="class or interface in java.lang" className="external-link">wait</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html#wait(long)" title="class or interface in java.lang" className="external-link">wait</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html#wait(long,int)" title="class or interface in java.lang" className="external-link">wait</a></code>
          </div>
        </div>
      </li>
    </ul>
  </div>

  <div className="section details">
    <ul className="details-list">
      <li>
        <div className="section constructor-details" id="constructor-detail">
          <h2>Constructor Details</h2>

          <ul className="member-list">
            <li>
              <div className="section detail" id="<init>()">
                <h3>GPUdbFileHandlerUtils</h3>
                <div className="member-signature"><span className="modifiers">public</span> <span className="element-name">GPUdbFileHandlerUtils</span>()</div>
              </div>
            </li>
          </ul>
        </div>
      </li>

      <li>
        <div className="section method-details" id="method-detail">
          <h2>Method Details</h2>

          <ul className="member-list">
            <li>
              <div className="section detail" id="joinStrings(java.util.List)">
                <h3>joinStrings</h3>
                <div className="member-signature"><span className="modifiers">public static</span> <span className="return-type"><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" className="external-link">String</a></span> <span className="element-name">joinStrings</span><wbr /><span className="parameters">(<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/List.html" title="class or interface in java.util" className="external-link">List</a>\<<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" className="external-link">String</a>> stringList)</span></div>
              </div>
            </li>

            <li>
              <div className="section detail" id="setDifference(java.util.Set,java.util.Set)">
                <h3>setDifference</h3>
                <div className="member-signature"><span className="modifiers">public static</span> <span className="type-parameters">\<T></span> <span className="return-type"><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/Set.html" title="class or interface in java.util" className="external-link">Set</a>\<T></span> <span className="element-name">setDifference</span><wbr /><span className="parameters">(<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/Set.html" title="class or interface in java.util" className="external-link">Set</a>\<T> setA, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/Set.html" title="class or interface in java.util" className="external-link">Set</a>\<T> setB)</span></div>
              </div>
            </li>

            <li>
              <div className="section detail" id="setIntersection(java.util.Set,java.util.Set)">
                <h3>setIntersection</h3>
                <div className="member-signature"><span className="modifiers">public static</span> <span className="type-parameters">\<T></span> <span className="return-type"><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/Set.html" title="class or interface in java.util" className="external-link">Set</a>\<T></span> <span className="element-name">setIntersection</span><wbr /><span className="parameters">(<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/Set.html" title="class or interface in java.util" className="external-link">Set</a>\<T> setA, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/Set.html" title="class or interface in java.util" className="external-link">Set</a>\<T> setB)</span></div>
              </div>
            </li>

            <li>
              <div className="section detail" id="joinStrings(java.util.List,char)">
                <h3>joinStrings</h3>
                <div className="member-signature"><span className="modifiers">public static</span> <span className="return-type"><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" className="external-link">String</a></span> <span className="element-name">joinStrings</span><wbr /><span className="parameters">(<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/List.html" title="class or interface in java.util" className="external-link">List</a>\<<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" className="external-link">String</a>> stringList, char separator)</span></div>
              </div>
            </li>

            <li>
              <div className="section detail" id="getJacksonObjectMapper()">
                <h3>getJacksonObjectMapper</h3>
                <div className="member-signature"><span className="modifiers">public static</span> <span className="return-type">com.fasterxml.jackson.databind.ObjectMapper</span> <span className="element-name">getJacksonObjectMapper</span>()</div>
                <div className="block">Creates and returns a Jackson ObjectMapper configured with custom serializers. This method is used by IngestOptions and TableCreationOptions for JSON serialization.</div>

                <div className="dl notes">
                  <div className="dt">Returns:</div>
                  <div className="dd">configured ObjectMapper instance</div>
                </div>
              </div>
            </li>
          </ul>
        </div>
      </li>
    </ul>
  </div>
</div>