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 <div class="subTitle">com.yahoo.memory</div>
 <h2 title="Class Buffer" class="title">Class Buffer</h2>
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 <li>com.yahoo.memory.Buffer</li>
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 <dd><a href="../../../com/yahoo/memory/WritableBuffer.html" title="class in com.yahoo.memory">WritableBuffer</a></dd>
 </dl>
 <hr>
 <br>
 <pre>public abstract class <span class="typeNameLabel">Buffer</span>
 extends <a href="../../../com/yahoo/memory/BaseBuffer.html" title="class in com.yahoo.memory">BaseBuffer</a></pre>
 <div class="block">Provides read-only, positional primitive and primitive array methods to any of the four resources
  mentioned in the package level documentation.</div>
 <dl>
 <dt><span class="simpleTagLabel">Author:</span></dt>
 <dd>Roman Leventov, Lee Rhodes</dd>
 <dt><span class="seeLabel">See Also:</span></dt>
 <dd><a href="../../../com/yahoo/memory/package-summary.html"><code>com.yahoo.memory</code></a></dd>
 </dl>
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 <h3>Method Summary</h3>
 <table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="Method Summary table, listing methods, and an explanation">
 <caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd">&nbsp;</span></span><span id="t1" class="tableTab"><span><a href="javascript:show(1);">Static Methods</a></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><span id="t4" class="tableTab"><span><a href="javascript:show(8);">Concrete 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>
 </tr>
 <tr id="i0" class="altColor">
 <td class="colFirst"><code>abstract <a href="../../../com/yahoo/memory/Memory.html" title="class in com.yahoo.memory">Memory</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../com/yahoo/memory/Buffer.html#asMemory--">asMemory</a></span>()</code>
 <div class="block">Convert this Buffer to a Memory.</div>
 </td>
 </tr>
 <tr id="i1" class="rowColor">
 <td class="colFirst"><code>void</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../com/yahoo/memory/Buffer.html#checkValidAndBounds-long-long-">checkValidAndBounds</a></span>(long&nbsp;offsetBytes,
                    long&nbsp;lengthBytes)</code>
 <div class="block">Checks that the specified range of bytes is within bounds of this object, throws
  <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang"><code>IllegalArgumentException</code></a> if it's not: i.</div>
 </td>
 </tr>
 <tr id="i2" class="altColor">
 <td class="colFirst"><code>abstract int</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../com/yahoo/memory/Buffer.html#compareTo-long-long-com.yahoo.memory.Buffer-long-long-">compareTo</a></span>(long&nbsp;thisOffsetBytes,
          long&nbsp;thisLengthBytes,
          <a href="../../../com/yahoo/memory/Buffer.html" title="class in com.yahoo.memory">Buffer</a>&nbsp;that,
          long&nbsp;thatOffsetBytes,
          long&nbsp;thatLengthBytes)</code>
 <div class="block">Compares the bytes of this Buffer to <i>that</i> Buffer.</div>
 </td>
 </tr>
 <tr id="i3" class="rowColor">
 <td class="colFirst"><code>abstract <a href="../../../com/yahoo/memory/Buffer.html" title="class in com.yahoo.memory">Buffer</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../com/yahoo/memory/Buffer.html#duplicate--">duplicate</a></span>()</code>
 <div class="block">Returns a read-only duplicate view of this Buffer with the same but independent values of
  <i>start</i>, <i>position</i> and <i>end</i>.</div>
 </td>
 </tr>
 <tr id="i4" class="altColor">
 <td class="colFirst"><code>abstract <a href="../../../com/yahoo/memory/Buffer.html" title="class in com.yahoo.memory">Buffer</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../com/yahoo/memory/Buffer.html#duplicate-java.nio.ByteOrder-">duplicate</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/nio/ByteOrder.html?is-external=true" title="class or interface in java.nio">ByteOrder</a>&nbsp;byteOrder)</code>
 <div class="block">Returns a read-only duplicate view of this Buffer with the same but independent values of
  <i>start</i>, <i>position</i> and <i>end</i>, but with the specified byteOrder.</div>
 </td>
 </tr>
 <tr id="i5" class="rowColor">
 <td class="colFirst"><code>boolean</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../com/yahoo/memory/Buffer.html#equals-java.lang.Object-">equals</a></span>(<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>&nbsp;that)</code>
 <div class="block">Returns true if the given object is an instance of this class and has equal data contents.</div>
 </td>
 </tr>
 <tr id="i6" class="altColor">
 <td class="colFirst"><code>boolean</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../com/yahoo/memory/Buffer.html#equalTo-long-java.lang.Object-long-long-">equalTo</a></span>(long&nbsp;thisOffsetBytes,
        <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>&nbsp;that,
        long&nbsp;thatOffsetBytes,
        long&nbsp;lengthBytes)</code>
 <div class="block">Returns true if the given object is an instance of this class and has equal contents to
  this object in the given range of bytes.</div>
 </td>
 </tr>
 <tr id="i7" class="rowColor">
 <td class="colFirst"><code>abstract boolean</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../com/yahoo/memory/Buffer.html#getBoolean--">getBoolean</a></span>()</code>
 <div class="block">Gets the boolean value at the current position.</div>
 </td>
 </tr>
 <tr id="i8" class="altColor">
 <td class="colFirst"><code>abstract boolean</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../com/yahoo/memory/Buffer.html#getBoolean-long-">getBoolean</a></span>(long&nbsp;offsetBytes)</code>
 <div class="block">Gets the boolean value at the given offset.</div>
 </td>
 </tr>
 <tr id="i9" class="rowColor">
 <td class="colFirst"><code>abstract void</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../com/yahoo/memory/Buffer.html#getBooleanArray-boolean:A-int-int-">getBooleanArray</a></span>(boolean[]&nbsp;dstArray,
                int&nbsp;dstOffsetBooleans,
                int&nbsp;lengthBooleans)</code>
 <div class="block">Gets the boolean array at the current position.</div>
 </td>
 </tr>
 <tr id="i10" class="altColor">
 <td class="colFirst"><code>abstract byte</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../com/yahoo/memory/Buffer.html#getByte--">getByte</a></span>()</code>
 <div class="block">Gets the byte value at the current position.</div>
 </td>
 </tr>
 <tr id="i11" class="rowColor">
 <td class="colFirst"><code>abstract byte</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../com/yahoo/memory/Buffer.html#getByte-long-">getByte</a></span>(long&nbsp;offsetBytes)</code>
 <div class="block">Gets the byte value at the given offset.</div>
 </td>
 </tr>
 <tr id="i12" class="altColor">
 <td class="colFirst"><code>abstract void</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../com/yahoo/memory/Buffer.html#getByteArray-byte:A-int-int-">getByteArray</a></span>(byte[]&nbsp;dstArray,
             int&nbsp;dstOffsetBytes,
             int&nbsp;lengthBytes)</code>
 <div class="block">Gets the byte array at the current position.</div>
 </td>
 </tr>
 <tr id="i13" class="rowColor">
 <td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/nio/ByteBuffer.html?is-external=true" title="class or interface in java.nio">ByteBuffer</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../com/yahoo/memory/Buffer.html#getByteBuffer--">getByteBuffer</a></span>()</code>
 <div class="block">Gets the backing ByteBuffer if it exists, otherwise returns null.</div>
 </td>
 </tr>
 <tr id="i14" class="altColor">
 <td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/nio/ByteOrder.html?is-external=true" title="class or interface in java.nio">ByteOrder</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../com/yahoo/memory/Buffer.html#getByteOrder--">getByteOrder</a></span>()</code>
 <div class="block">Gets the current ByteOrder.</div>
 </td>
 </tr>
 <tr id="i15" class="rowColor">
 <td class="colFirst"><code>long</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../com/yahoo/memory/Buffer.html#getCapacity--">getCapacity</a></span>()</code>
 <div class="block">Gets the capacity of this object in bytes</div>
 </td>
 </tr>
 <tr id="i16" class="altColor">
 <td class="colFirst"><code>abstract char</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../com/yahoo/memory/Buffer.html#getChar--">getChar</a></span>()</code>
 <div class="block">Gets the char value at the current position.</div>
 </td>
 </tr>
 <tr id="i17" class="rowColor">
 <td class="colFirst"><code>abstract char</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../com/yahoo/memory/Buffer.html#getChar-long-">getChar</a></span>(long&nbsp;offsetBytes)</code>
 <div class="block">Gets the char value at the given offset.</div>
 </td>
 </tr>
 <tr id="i18" class="altColor">
 <td class="colFirst"><code>abstract void</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../com/yahoo/memory/Buffer.html#getCharArray-char:A-int-int-">getCharArray</a></span>(char[]&nbsp;dstArray,
             int&nbsp;dstOffsetChars,
             int&nbsp;lengthChars)</code>
 <div class="block">Gets the char array at the current position.</div>
 </td>
 </tr>
 <tr id="i19" class="rowColor">
 <td class="colFirst"><code>long</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../com/yahoo/memory/Buffer.html#getCumulativeOffset--">getCumulativeOffset</a></span>()</code>
 <div class="block">Gets the cumulative offset in bytes of this object from the backing resource.</div>
 </td>
 </tr>
 <tr id="i20" class="altColor">
 <td class="colFirst"><code>long</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../com/yahoo/memory/Buffer.html#getCumulativeOffset-long-">getCumulativeOffset</a></span>(long&nbsp;offsetBytes)</code>
 <div class="block">Gets the cumulative offset in bytes of this object from the backing resource including the given
  offsetBytes.</div>
 </td>
 </tr>
 <tr id="i21" class="rowColor">
 <td class="colFirst"><code>static long</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../com/yahoo/memory/Buffer.html#getCurrentDirectMemoryAllocated--">getCurrentDirectMemoryAllocated</a></span>()</code>
 <div class="block">Gets the current size of active direct memory allocated.</div>
 </td>
 </tr>
 <tr id="i22" class="altColor">
 <td class="colFirst"><code>static long</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../com/yahoo/memory/Buffer.html#getCurrentDirectMemoryAllocations--">getCurrentDirectMemoryAllocations</a></span>()</code>
 <div class="block">Gets the current number of active direct memory allocations.</div>
 </td>
 </tr>
 <tr id="i23" class="rowColor">
 <td class="colFirst"><code>static long</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../com/yahoo/memory/Buffer.html#getCurrentDirectMemoryMapAllocated--">getCurrentDirectMemoryMapAllocated</a></span>()</code>
 <div class="block">Gets the current size of active direct memory map allocated.</div>
 </td>
 </tr>
 <tr id="i24" class="altColor">
 <td class="colFirst"><code>static long</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../com/yahoo/memory/Buffer.html#getCurrentDirectMemoryMapAllocations--">getCurrentDirectMemoryMapAllocations</a></span>()</code>
 <div class="block">Gets the current number of active direct memory map allocations.</div>
 </td>
 </tr>
 <tr id="i25" class="rowColor">
 <td class="colFirst"><code>abstract double</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../com/yahoo/memory/Buffer.html#getDouble--">getDouble</a></span>()</code>
 <div class="block">Gets the double value at the current position.</div>
 </td>
 </tr>
 <tr id="i26" class="altColor">
 <td class="colFirst"><code>abstract double</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../com/yahoo/memory/Buffer.html#getDouble-long-">getDouble</a></span>(long&nbsp;offsetBytes)</code>
 <div class="block">Gets the double value at the given offset.</div>
 </td>
 </tr>
 <tr id="i27" class="rowColor">
 <td class="colFirst"><code>abstract void</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../com/yahoo/memory/Buffer.html#getDoubleArray-double:A-int-int-">getDoubleArray</a></span>(double[]&nbsp;dstArray,
               int&nbsp;dstOffsetDoubles,
               int&nbsp;lengthDoubles)</code>
 <div class="block">Gets the double array at the current position.</div>
 </td>
 </tr>
 <tr id="i28" class="altColor">
 <td class="colFirst"><code>abstract float</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../com/yahoo/memory/Buffer.html#getFloat--">getFloat</a></span>()</code>
 <div class="block">Gets the float value at the current position.</div>
 </td>
 </tr>
 <tr id="i29" class="rowColor">
 <td class="colFirst"><code>abstract float</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../com/yahoo/memory/Buffer.html#getFloat-long-">getFloat</a></span>(long&nbsp;offsetBytes)</code>
 <div class="block">Gets the float value at the given offset.</div>
 </td>
 </tr>
 <tr id="i30" class="altColor">
 <td class="colFirst"><code>abstract void</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../com/yahoo/memory/Buffer.html#getFloatArray-float:A-int-int-">getFloatArray</a></span>(float[]&nbsp;dstArray,
              int&nbsp;dstOffsetFloats,
              int&nbsp;lengthFloats)</code>
 <div class="block">Gets the float array at the current position.</div>
 </td>
 </tr>
 <tr id="i31" class="rowColor">
 <td class="colFirst"><code>abstract int</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../com/yahoo/memory/Buffer.html#getInt--">getInt</a></span>()</code>
 <div class="block">Gets the int value at the current position.</div>
 </td>
 </tr>
 <tr id="i32" class="altColor">
 <td class="colFirst"><code>abstract int</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../com/yahoo/memory/Buffer.html#getInt-long-">getInt</a></span>(long&nbsp;offsetBytes)</code>
 <div class="block">Gets the int value at the given offset.</div>
 </td>
 </tr>
 <tr id="i33" class="rowColor">
 <td class="colFirst"><code>abstract void</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../com/yahoo/memory/Buffer.html#getIntArray-int:A-int-int-">getIntArray</a></span>(int[]&nbsp;dstArray,
            int&nbsp;dstOffsetInts,
            int&nbsp;lengthInts)</code>
 <div class="block">Gets the int array at the current position.</div>
 </td>
 </tr>
 <tr id="i34" class="altColor">
 <td class="colFirst"><code>abstract long</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../com/yahoo/memory/Buffer.html#getLong--">getLong</a></span>()</code>
 <div class="block">Gets the long value at the current position.</div>
 </td>
 </tr>
 <tr id="i35" class="rowColor">
 <td class="colFirst"><code>abstract long</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../com/yahoo/memory/Buffer.html#getLong-long-">getLong</a></span>(long&nbsp;offsetBytes)</code>
 <div class="block">Gets the long value at the given offset.</div>
 </td>
 </tr>
 <tr id="i36" class="altColor">
 <td class="colFirst"><code>abstract void</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../com/yahoo/memory/Buffer.html#getLongArray-long:A-int-int-">getLongArray</a></span>(long[]&nbsp;dstArray,
             int&nbsp;dstOffsetLongs,
             int&nbsp;lengthLongs)</code>
 <div class="block">Gets the long array at the current position.</div>
 </td>
 </tr>
 <tr id="i37" class="rowColor">
 <td class="colFirst"><code>long</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../com/yahoo/memory/Buffer.html#getRegionOffset--">getRegionOffset</a></span>()</code>
 <div class="block">Returns the offset of address zero of this object relative to the address zero of the
  backing resource but not including the size of any Java object header.</div>
 </td>
 </tr>
 <tr id="i38" class="altColor">
 <td class="colFirst"><code>long</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../com/yahoo/memory/Buffer.html#getRegionOffset-long-">getRegionOffset</a></span>(long&nbsp;offsetBytes)</code>
 <div class="block">Returns the offset of address zero of this object relative to the address zero of the
  backing resource plus the given offsetBytes but not including the size of any Java object
  header.</div>
 </td>
 </tr>
 <tr id="i39" class="rowColor">
 <td class="colFirst"><code>abstract short</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../com/yahoo/memory/Buffer.html#getShort--">getShort</a></span>()</code>
 <div class="block">Gets the short value at the current position.</div>
 </td>
 </tr>
 <tr id="i40" class="altColor">
 <td class="colFirst"><code>abstract short</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../com/yahoo/memory/Buffer.html#getShort-long-">getShort</a></span>(long&nbsp;offsetBytes)</code>
 <div class="block">Gets the short value at the given offset.</div>
 </td>
 </tr>
 <tr id="i41" class="rowColor">
 <td class="colFirst"><code>abstract void</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../com/yahoo/memory/Buffer.html#getShortArray-short:A-int-int-">getShortArray</a></span>(short[]&nbsp;dstArray,
              int&nbsp;dstOffsetShorts,
              int&nbsp;lengthShorts)</code>
 <div class="block">Gets the short array at the current position.</div>
 </td>
 </tr>
 <tr id="i42" class="altColor">
 <td class="colFirst"><code>boolean</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../com/yahoo/memory/Buffer.html#hasArray--">hasArray</a></span>()</code>
 <div class="block">Returns true if this object is backed by an on-heap primitive array</div>
 </td>
 </tr>
 <tr id="i43" class="rowColor">
 <td class="colFirst"><code>boolean</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../com/yahoo/memory/Buffer.html#hasByteBuffer--">hasByteBuffer</a></span>()</code>
 <div class="block">Returns true if this Memory is backed by a ByteBuffer.</div>
 </td>
 </tr>
 <tr id="i44" class="altColor">
 <td class="colFirst"><code>int</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../com/yahoo/memory/Buffer.html#hashCode--">hashCode</a></span>()</code>
 <div class="block">Returns the hashCode of this object.</div>
 </td>
 </tr>
 <tr id="i45" class="rowColor">
 <td class="colFirst"><code>boolean</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../com/yahoo/memory/Buffer.html#isDirect--">isDirect</a></span>()</code>
 <div class="block">Returns true if the backing resource is direct (off-heap) memory.</div>
 </td>
 </tr>
 <tr id="i46" class="altColor">
 <td class="colFirst"><code>boolean</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../com/yahoo/memory/Buffer.html#isNativeOrder--">isNativeOrder</a></span>()</code>
 <div class="block">Returns true if the current byte order is native order.</div>
 </td>
 </tr>
 <tr id="i47" class="rowColor">
 <td class="colFirst"><code>boolean</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../com/yahoo/memory/Buffer.html#isReadOnly--">isReadOnly</a></span>()</code>
 <div class="block">Returns true if this object or the backing resource is read-only.</div>
 </td>
 </tr>
 <tr id="i48" class="altColor">
 <td class="colFirst"><code>boolean</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../com/yahoo/memory/Buffer.html#isSameResource-java.lang.Object-">isSameResource</a></span>(<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>&nbsp;that)</code>
 <div class="block">Returns true if the backing resource of <i>this</i> is identical with the backing resource
  of <i>that</i>.</div>
 </td>
 </tr>
 <tr id="i49" class="rowColor">
 <td class="colFirst"><code>boolean</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../com/yahoo/memory/Buffer.html#isValid--">isValid</a></span>()</code>
 <div class="block">Returns true if this object is valid and has not been closed.</div>
 </td>
 </tr>
 <tr id="i50" class="altColor">
 <td class="colFirst"><code>abstract <a href="../../../com/yahoo/memory/Buffer.html" title="class in com.yahoo.memory">Buffer</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../com/yahoo/memory/Buffer.html#region--">region</a></span>()</code>
 <div class="block">A region is a read-only view of this object.</div>
 </td>
 </tr>
 <tr id="i51" class="rowColor">
 <td class="colFirst"><code>abstract <a href="../../../com/yahoo/memory/Buffer.html" title="class in com.yahoo.memory">Buffer</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../com/yahoo/memory/Buffer.html#region-long-long-java.nio.ByteOrder-">region</a></span>(long&nbsp;offsetBytes,
       long&nbsp;capacityBytes,
       <a href="https://docs.oracle.com/javase/8/docs/api/java/nio/ByteOrder.html?is-external=true" title="class or interface in java.nio">ByteOrder</a>&nbsp;byteOrder)</code>
 <div class="block">A region is a read-only view of this object.</div>
 </td>
 </tr>
 <tr id="i52" class="altColor">
 <td class="colFirst"><code><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></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../com/yahoo/memory/Buffer.html#toHexString-java.lang.String-long-int-">toHexString</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;header,
            long&nbsp;offsetBytes,
            int&nbsp;lengthBytes)</code>
 <div class="block">Returns a formatted hex string of a range of this object.</div>
 </td>
 </tr>
 <tr id="i53" class="rowColor">
 <td class="colFirst"><code>static <a href="../../../com/yahoo/memory/Buffer.html" title="class in com.yahoo.memory">Buffer</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../com/yahoo/memory/Buffer.html#wrap-java.nio.ByteBuffer-">wrap</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/nio/ByteBuffer.html?is-external=true" title="class or interface in java.nio">ByteBuffer</a>&nbsp;byteBuf)</code>
 <div class="block">Accesses the given ByteBuffer for read-only operations.</div>
 </td>
 </tr>
 <tr id="i54" class="altColor">
 <td class="colFirst"><code>static <a href="../../../com/yahoo/memory/Buffer.html" title="class in com.yahoo.memory">Buffer</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../com/yahoo/memory/Buffer.html#wrap-java.nio.ByteBuffer-java.nio.ByteOrder-">wrap</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/nio/ByteBuffer.html?is-external=true" title="class or interface in java.nio">ByteBuffer</a>&nbsp;byteBuf,
     <a href="https://docs.oracle.com/javase/8/docs/api/java/nio/ByteOrder.html?is-external=true" title="class or interface in java.nio">ByteOrder</a>&nbsp;byteOrder)</code>
 <div class="block">Accesses the given ByteBuffer for read-only operations.</div>
 </td>
 </tr>
 <tr id="i55" class="rowColor">
 <td class="colFirst"><code>long</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../com/yahoo/memory/Buffer.html#xxHash64-long-long-long-">xxHash64</a></span>(long&nbsp;offsetBytes,
         long&nbsp;lengthBytes,
         long&nbsp;seed)</code>
 <div class="block">Returns the 64-bit hash of the sequence of bytes in this object specified by
  <i>offsetBytes</i>, <i>lengthBytes</i> and a <i>seed</i>.</div>
 </td>
 </tr>
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 <h3>Methods inherited from class&nbsp;com.yahoo.memory.<a href="../../../com/yahoo/memory/BaseBuffer.html" title="class in com.yahoo.memory">BaseBuffer</a></h3>
 <code><a href="../../../com/yahoo/memory/BaseBuffer.html#getEnd--">getEnd</a>, <a href="../../../com/yahoo/memory/BaseBuffer.html#getPosition--">getPosition</a>, <a href="../../../com/yahoo/memory/BaseBuffer.html#getRemaining--">getRemaining</a>, <a href="../../../com/yahoo/memory/BaseBuffer.html#getStart--">getStart</a>, <a href="../../../com/yahoo/memory/BaseBuffer.html#hasRemaining--">hasRemaining</a>, <a href="../../../com/yahoo/memory/BaseBuffer.html#incrementAndCheckPosition-long-">incrementAndCheckPosition</a>, <a href="../../../com/yahoo/memory/BaseBuffer.html#incrementPosition-long-">incrementPosition</a>, <a href="../../../com/yahoo/memory/BaseBuffer.html#resetPosition--">resetPosition</a>, <a href="../../../com/yahoo/memory/BaseBuffer.html#setAndCheckPosition-long-">setAndCheckPosition</a>, <a href="../../../com/yahoo/memory/BaseBuffer.html#setAndCheckStartPositionEnd-long-long-long-">setAndCheckStartPositionEnd</a>, <a href="../../../com/yahoo/memory/BaseBuffer.html#setPosition-long-">setPosition</a>, <a href="../../../com/yahoo/memory/BaseBuffer.html#setStartPositionEnd-long-long-long-">setStartPositionEnd</a></code></li>
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 <code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#clone--" title="class or interface in java.lang">clone</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#finalize--" title="class or interface in java.lang">finalize</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#getClass--" title="class or interface in java.lang">getClass</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notify--" title="class or interface in java.lang">notify</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notifyAll--" title="class or interface in java.lang">notifyAll</a>, <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>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait--" title="class or interface in java.lang">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-" title="class or interface in java.lang">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-int-" title="class or interface in java.lang">wait</a></code></li>
 </ul>
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 <h4>wrap</h4>
 <pre>public static&nbsp;<a href="../../../com/yahoo/memory/Buffer.html" title="class in com.yahoo.memory">Buffer</a>&nbsp;wrap(<a href="https://docs.oracle.com/javase/8/docs/api/java/nio/ByteBuffer.html?is-external=true" title="class or interface in java.nio">ByteBuffer</a>&nbsp;byteBuf)</pre>
 <div class="block">Accesses the given ByteBuffer for read-only operations. The returned Buffer object has the
  same byte order, as the given ByteBuffer, unless the capacity of the given ByteBuffer is zero,
  then byte order of the returned Buffer object (as well as backing storage) is unspecified.</div>
 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>byteBuf</code> - the given ByteBuffer, must not be null.</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>a new Buffer for read-only operations on the given ByteBuffer.</dd>
 </dl>
 </li>
 </ul>
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 <!--   -->
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 <h4>wrap</h4>
 <pre>public static&nbsp;<a href="../../../com/yahoo/memory/Buffer.html" title="class in com.yahoo.memory">Buffer</a>&nbsp;wrap(<a href="https://docs.oracle.com/javase/8/docs/api/java/nio/ByteBuffer.html?is-external=true" title="class or interface in java.nio">ByteBuffer</a>&nbsp;byteBuf,
                           <a href="https://docs.oracle.com/javase/8/docs/api/java/nio/ByteOrder.html?is-external=true" title="class or interface in java.nio">ByteOrder</a>&nbsp;byteOrder)</pre>
 <div class="block">Accesses the given ByteBuffer for read-only operations. The returned Buffer object has
  the given byte order, ignoring the byte order of the given ByteBuffer. If the capacity of
  the given ByteBuffer is zero the byte order of the returned Buffer object
  (as well as backing storage) is unspecified.</div>
 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>byteBuf</code> - the given ByteBuffer, must not be null</dd>
 <dd><code>byteOrder</code> - the byte order to be used, which may be independent of the byte order
  state of the given ByteBuffer</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>a new Buffer for read-only operations on the given ByteBuffer.</dd>
 </dl>
 </li>
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 <h4>duplicate</h4>
 <pre>public abstract&nbsp;<a href="../../../com/yahoo/memory/Buffer.html" title="class in com.yahoo.memory">Buffer</a>&nbsp;duplicate()</pre>
 <div class="block">Returns a read-only duplicate view of this Buffer with the same but independent values of
  <i>start</i>, <i>position</i> and <i>end</i>.
  <ul>
  <li>Returned object's origin = this object's origin</li>
  <li>Returned object's <i>start</i> = this object's <i>start</i></li>
  <li>Returned object's <i>position</i> = this object's <i>position</i></li>
  <li>Returned object's <i>end</i> = this object's <i>end</i></li>
  <li>Returned object's <i>capacity</i> = this object' <i>capacityBytes</i></li>
  <li>Returned object's <i>start</i>, <i>position</i> and <i>end</i> are mutable and
  independent of this object's <i>start</i>, <i>position</i> and <i>end</i></li>
  </ul>
  If this object's capacity is zero, the returned object is effectively immutable and
  the backing storage and byte order are unspecified.</div>
 <dl>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>a read-only duplicate view of this Buffer with the same but independent values of
  <i>start</i>, <i>position</i> and <i>end</i>.</dd>
 </dl>
 </li>
 </ul>
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 <h4>duplicate</h4>
 <pre>public abstract&nbsp;<a href="../../../com/yahoo/memory/Buffer.html" title="class in com.yahoo.memory">Buffer</a>&nbsp;duplicate(<a href="https://docs.oracle.com/javase/8/docs/api/java/nio/ByteOrder.html?is-external=true" title="class or interface in java.nio">ByteOrder</a>&nbsp;byteOrder)</pre>
 <div class="block">Returns a read-only duplicate view of this Buffer with the same but independent values of
  <i>start</i>, <i>position</i> and <i>end</i>, but with the specified byteOrder.
  <ul>
  <li>Returned object's origin = this object's origin</li>
  <li>Returned object's <i>start</i> = this object's <i>start</i></li>
  <li>Returned object's <i>position</i> = this object's <i>position</i></li>
  <li>Returned object's <i>end</i> = this object's <i>end</i></li>
  <li>Returned object's <i>capacity</i> = this object' <i>capacityBytes</i></li>
  <li>Returned object's <i>start</i>, <i>position</i> and <i>end</i> are mutable and
  independent of this object's <i>start</i>, <i>position</i> and <i>end</i></li>
  </ul>
  If this object's capacity is zero, the returned object is effectively immutable and
  the backing storage and byte order are unspecified.</div>
 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>byteOrder</code> - the given <i>ByteOrder</i>.</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>a read-only duplicate view of this Buffer with the same but independent values of
  <i>start</i>, <i>position</i> and <i>end</i>.</dd>
 </dl>
 </li>
 </ul>
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 <h4>region</h4>
 <pre>public abstract&nbsp;<a href="../../../com/yahoo/memory/Buffer.html" title="class in com.yahoo.memory">Buffer</a>&nbsp;region()</pre>
 <div class="block">A region is a read-only view of this object.
  <ul>
  <li>Returned object's origin = this object's <i>position</i></li>
  <li>Returned object's <i>start</i> = 0</li>
  <li>Returned object's <i>position</i> = 0</li>
  <li>Returned object's <i>end</i> = this object's (<i>end</i> - <i>position</i>)</li>
  <li>Returned object's <i>capacity</i> = this object's (<i>end</i> - <i>position</i>)</li>
  <li>Returned object's <i>start</i>, <i>position</i> and <i>end</i> are mutable and
  independent of this object's <i>start</i>, <i>position</i> and <i>end</i></li>
  </ul>
  If this object's capacity is zero, the returned object is effectively immutable and
  the backing storage and byte order are unspecified.</div>
 <dl>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>a new <i>Buffer</i> representing the defined region based on the current
  <i>position</i> and <i>end</i>.</dd>
 </dl>
 </li>
 </ul>
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 <h4>region</h4>
 <pre>public abstract&nbsp;<a href="../../../com/yahoo/memory/Buffer.html" title="class in com.yahoo.memory">Buffer</a>&nbsp;region(long&nbsp;offsetBytes,
                               long&nbsp;capacityBytes,
                               <a href="https://docs.oracle.com/javase/8/docs/api/java/nio/ByteOrder.html?is-external=true" title="class or interface in java.nio">ByteOrder</a>&nbsp;byteOrder)</pre>
 <div class="block">A region is a read-only view of this object.
  <ul>
  <li>Returned object's origin = this objects' origin + <i>offsetBytes</i></li>
  <li>Returned object's <i>start</i> = 0</li>
  <li>Returned object's <i>position</i> = 0</li>
  <li>Returned object's <i>end</i> = <i>capacityBytes</i></li>
  <li>Returned object's <i>capacity</i> = <i>capacityBytes</i></li>
  <li>Returned object's <i>start</i>, <i>position</i> and <i>end</i> are mutable and
  independent of this object's <i>start</i>, <i>position</i> and <i>end</i></li>
  <li>Returned object's byte order = <i>byteOrder</i></li>
  </ul>
  If this object's capacity is zero, the returned object is effectively immutable and
  the backing storage and byte order are unspecified.

  <p><b>Note: The Memory returned with </b><i>asMemory()</i> will have the originating
  <i>Memory</i> byte order.</p></div>
 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>offsetBytes</code> - the starting offset with respect to the origin of this <i>WritableBuffer</i></dd>
 <dd><code>capacityBytes</code> - the <i>capacity</i> of the returned region in bytes</dd>
 <dd><code>byteOrder</code> - the given byte order</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>a new <i>WritableBuffer</i> representing the defined writable region
  based on the current <i>position</i>, <i>end</i> and byteOrder.</dd>
 </dl>
 </li>
 </ul>
 <a name="asMemory--">
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 <h4>asMemory</h4>
 <pre>public abstract&nbsp;<a href="../../../com/yahoo/memory/Memory.html" title="class in com.yahoo.memory">Memory</a>&nbsp;asMemory()</pre>
 <div class="block">Convert this Buffer to a Memory. The current <i>start</i>, <i>position</i> and <i>end</i>
  are ignored.
  If this object's capacity is zero, the returned object is effectively immutable and
  the backing resource and byte order are unspecified.</div>
 <dl>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>Memory</dd>
 </dl>
 </li>
 </ul>
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 <h4>getBoolean</h4>
 <pre>public abstract&nbsp;boolean&nbsp;getBoolean()</pre>
 <div class="block">Gets the boolean value at the current position.
  Increments the position by 1.</div>
 <dl>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>the boolean at the current position</dd>
 </dl>
 </li>
 </ul>
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 <pre>public abstract&nbsp;boolean&nbsp;getBoolean(long&nbsp;offsetBytes)</pre>
 <div class="block">Gets the boolean value at the given offset.
  This does not change the position.</div>
 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>offsetBytes</code> - offset bytes relative to this Memory start</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>the boolean at the given offset</dd>
 </dl>
 </li>
 </ul>
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 <pre>public abstract&nbsp;void&nbsp;getBooleanArray(boolean[]&nbsp;dstArray,
                                      int&nbsp;dstOffsetBooleans,
                                      int&nbsp;lengthBooleans)</pre>
 <div class="block">Gets the boolean array at the current position.
  Increments the position by <i>lengthBooleans - dstOffsetBooleans</i>.</div>
 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>dstArray</code> - The preallocated destination array.</dd>
 <dd><code>dstOffsetBooleans</code> - offset in array units</dd>
 <dd><code>lengthBooleans</code> - number of array units to transfer</dd>
 </dl>
 </li>
 </ul>
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 <pre>public abstract&nbsp;byte&nbsp;getByte()</pre>
 <div class="block">Gets the byte value at the current position.
  Increments the position by <i>Byte.BYTES</i>.</div>
 <dl>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>the byte at the current position</dd>
 </dl>
 </li>
 </ul>
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 <pre>public abstract&nbsp;byte&nbsp;getByte(long&nbsp;offsetBytes)</pre>
 <div class="block">Gets the byte value at the given offset.
  This does not change the position.</div>
 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>offsetBytes</code> - offset bytes relative to this Memory start</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>the byte at the given offset</dd>
 </dl>
 </li>
 </ul>
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 <pre>public abstract&nbsp;void&nbsp;getByteArray(byte[]&nbsp;dstArray,
                                   int&nbsp;dstOffsetBytes,
                                   int&nbsp;lengthBytes)</pre>
 <div class="block">Gets the byte array at the current position.
  Increments the position by <i>Byte.BYTES * (lengthBytes - dstOffsetBytes)</i>.</div>
 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>dstArray</code> - The preallocated destination array.</dd>
 <dd><code>dstOffsetBytes</code> - offset in array units</dd>
 <dd><code>lengthBytes</code> - number of array units to transfer</dd>
 </dl>
 </li>
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 <pre>public abstract&nbsp;char&nbsp;getChar()</pre>
 <div class="block">Gets the char value at the current position.
  Increments the position by <i>Character.BYTES</i>.</div>
 <dl>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>the char at the current position</dd>
 </dl>
 </li>
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 <pre>public abstract&nbsp;char&nbsp;getChar(long&nbsp;offsetBytes)</pre>
 <div class="block">Gets the char value at the given offset.
  This does not change the position.</div>
 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>offsetBytes</code> - offset bytes relative to this Memory start</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>the char at the given offset</dd>
 </dl>
 </li>
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 <pre>public abstract&nbsp;void&nbsp;getCharArray(char[]&nbsp;dstArray,
                                   int&nbsp;dstOffsetChars,
                                   int&nbsp;lengthChars)</pre>
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                                       long&nbsp;lengthBytes)</pre>
 <div class="block">Checks that the specified range of bytes is within bounds of this object, throws
  <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang"><code>IllegalArgumentException</code></a> if it's not: i. e. if offsetBytes &lt; 0, or length &lt; 0,
  or offsetBytes + length &gt; <a href="../../../com/yahoo/memory/Buffer.html#getCapacity--"><code>getCapacity()</code></a>.</div>
 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>offsetBytes</code> - the given offset in bytes of this object</dd>
 <dd><code>lengthBytes</code> - the given length in bytes of this object</dd>
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 <pre>public static final&nbsp;long&nbsp;getCurrentDirectMemoryAllocations()</pre>
 <div class="block">Gets the current number of active direct memory allocations.</div>
 <dl>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>the current number of active direct memory allocations.</dd>
 </dl>
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 <pre>public static final&nbsp;long&nbsp;getCurrentDirectMemoryAllocated()</pre>
 <div class="block">Gets the current size of active direct memory allocated.</div>
 <dl>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>the current size of active direct memory allocated.</dd>
 </dl>
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 <pre>public static final&nbsp;long&nbsp;getCurrentDirectMemoryMapAllocations()</pre>
 <div class="block">Gets the current number of active direct memory map allocations.</div>
 <dl>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>the current number of active direct memory map allocations.</dd>
 </dl>
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 <pre>public static final&nbsp;long&nbsp;getCurrentDirectMemoryMapAllocated()</pre>
 <div class="block">Gets the current size of active direct memory map allocated.</div>
 <dl>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>the current size of active direct memory map allocated.</dd>
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 <pre>public final&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;toHexString(<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;header,
                                 long&nbsp;offsetBytes,
                                 int&nbsp;lengthBytes)</pre>
 <div class="block">Returns a formatted hex string of a range of this object.
  Used primarily for testing.</div>
 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>header</code> - a descriptive header</dd>
 <dd><code>offsetBytes</code> - offset bytes relative to this object start</dd>
 <dd><code>lengthBytes</code> - number of bytes to convert to a hex string</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>a formatted hex string in a human readable array</dd>
 </dl>
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