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| <h2 title="Class DecimalUtility" class="title">Class DecimalUtility</h2> |
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| <pre>public class <span class="typeNameLabel">DecimalUtility</span> |
| 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></pre> |
| <div class="block">Utility methods for configurable precision Decimal values (e.g. <a href="https://docs.oracle.com/javase/8/docs/api/java/math/BigDecimal.html?is-external=true" title="class or interface in java.math"><code>BigDecimal</code></a>).</div> |
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| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colLast" scope="col">Field and Description</th> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>static byte[]</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/arrow/vector/util/DecimalUtility.html#minus_one">minus_one</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>static byte[]</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/arrow/vector/util/DecimalUtility.html#zeroes">zeroes</a></span></code> </td> |
| </tr> |
| </table> |
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| <caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd"> </span></span><span id="t1" class="tableTab"><span><a href="javascript:show(1);">Static Methods</a></span><span class="tabEnd"> </span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">Concrete Methods</a></span><span class="tabEnd"> </span></span></caption> |
| <tr> |
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| <tr id="i0" class="altColor"> |
| <td class="colFirst"><code>static boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/arrow/vector/util/DecimalUtility.html#checkPrecisionAndScale-java.math.BigDecimal-int-int-">checkPrecisionAndScale</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/math/BigDecimal.html?is-external=true" title="class or interface in java.math">BigDecimal</a> value, |
| int vectorPrecision, |
| int vectorScale)</code> |
| <div class="block">Check that the BigDecimal scale equals the vectorScale and that the BigDecimal precision is |
| less than or equal to the vectorPrecision.</div> |
| </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>static boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/arrow/vector/util/DecimalUtility.html#checkPrecisionAndScale-int-int-int-int-">checkPrecisionAndScale</a></span>(int decimalPrecision, |
| int decimalScale, |
| int vectorPrecision, |
| int vectorScale)</code> |
| <div class="block">Check that the decimal scale equals the vectorScale and that the decimal precision is |
| less than or equal to the vectorPrecision.</div> |
| </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code>static boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/arrow/vector/util/DecimalUtility.html#checkPrecisionAndScaleNoThrow-java.math.BigDecimal-int-int-">checkPrecisionAndScaleNoThrow</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/math/BigDecimal.html?is-external=true" title="class or interface in java.math">BigDecimal</a> value, |
| int vectorPrecision, |
| int vectorScale)</code> |
| <div class="block">Check that the BigDecimal scale equals the vectorScale and that the BigDecimal precision is |
| less than or equal to the vectorPrecision.</div> |
| </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/math/BigDecimal.html?is-external=true" title="class or interface in java.math">BigDecimal</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/arrow/vector/util/DecimalUtility.html#getBigDecimalFromArrowBuf-org.apache.arrow.memory.ArrowBuf-int-int-int-">getBigDecimalFromArrowBuf</a></span>(<a href="../../../../../org/apache/arrow/memory/ArrowBuf.html" title="class in org.apache.arrow.memory">ArrowBuf</a> bytebuf, |
| int index, |
| int scale, |
| int byteWidth)</code> |
| <div class="block">Read an ArrowType.Decimal at the given value index in the ArrowBuf and convert to a BigDecimal |
| with the given scale.</div> |
| </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/math/BigDecimal.html?is-external=true" title="class or interface in java.math">BigDecimal</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/arrow/vector/util/DecimalUtility.html#getBigDecimalFromByteBuffer-java.nio.ByteBuffer-int-int-">getBigDecimalFromByteBuffer</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> bytebuf, |
| int scale, |
| int byteWidth)</code> |
| <div class="block">Read an ArrowType.Decimal from the ByteBuffer and convert to a BigDecimal with the given |
| scale.</div> |
| </td> |
| </tr> |
| <tr id="i5" class="rowColor"> |
| <td class="colFirst"><code>static byte[]</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/arrow/vector/util/DecimalUtility.html#getByteArrayFromArrowBuf-org.apache.arrow.memory.ArrowBuf-int-int-">getByteArrayFromArrowBuf</a></span>(<a href="../../../../../org/apache/arrow/memory/ArrowBuf.html" title="class in org.apache.arrow.memory">ArrowBuf</a> bytebuf, |
| int index, |
| int byteWidth)</code> |
| <div class="block">Read an ArrowType.Decimal from the ArrowBuf at the given value index and return it as a byte |
| array.</div> |
| </td> |
| </tr> |
| <tr id="i6" class="altColor"> |
| <td class="colFirst"><code>static void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/arrow/vector/util/DecimalUtility.html#writeBigDecimalToArrowBuf-java.math.BigDecimal-org.apache.arrow.memory.ArrowBuf-int-int-">writeBigDecimalToArrowBuf</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/math/BigDecimal.html?is-external=true" title="class or interface in java.math">BigDecimal</a> value, |
| <a href="../../../../../org/apache/arrow/memory/ArrowBuf.html" title="class in org.apache.arrow.memory">ArrowBuf</a> bytebuf, |
| int index, |
| int byteWidth)</code> |
| <div class="block">Write the given BigDecimal to the ArrowBuf at the given value index.</div> |
| </td> |
| </tr> |
| <tr id="i7" class="rowColor"> |
| <td class="colFirst"><code>static void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/arrow/vector/util/DecimalUtility.html#writeByteArrayToArrowBuf-byte:A-org.apache.arrow.memory.ArrowBuf-int-int-">writeByteArrayToArrowBuf</a></span>(byte[] bytes, |
| <a href="../../../../../org/apache/arrow/memory/ArrowBuf.html" title="class in org.apache.arrow.memory">ArrowBuf</a> bytebuf, |
| int index, |
| int byteWidth)</code> |
| <div class="block">Write the given byte array to the ArrowBuf at the given value index.</div> |
| </td> |
| </tr> |
| <tr id="i8" class="altColor"> |
| <td class="colFirst"><code>static void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/arrow/vector/util/DecimalUtility.html#writeLongToArrowBuf-long-org.apache.arrow.memory.ArrowBuf-int-int-">writeLongToArrowBuf</a></span>(long value, |
| <a href="../../../../../org/apache/arrow/memory/ArrowBuf.html" title="class in org.apache.arrow.memory">ArrowBuf</a> bytebuf, |
| int index, |
| int byteWidth)</code> |
| <div class="block">Write the given long to the ArrowBuf at the given value index.</div> |
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| <h3>Methods inherited from class java.lang.<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></h3> |
| <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#equals-java.lang.Object-" title="class or interface in java.lang">equals</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#hashCode--" title="class or interface in java.lang">hashCode</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> |
| </li> |
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| <pre>public static final byte[] zeroes</pre> |
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| <pre>public static final byte[] minus_one</pre> |
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| <pre>public static <a href="https://docs.oracle.com/javase/8/docs/api/java/math/BigDecimal.html?is-external=true" title="class or interface in java.math">BigDecimal</a> getBigDecimalFromArrowBuf(<a href="../../../../../org/apache/arrow/memory/ArrowBuf.html" title="class in org.apache.arrow.memory">ArrowBuf</a> bytebuf, |
| int index, |
| int scale, |
| int byteWidth)</pre> |
| <div class="block">Read an ArrowType.Decimal at the given value index in the ArrowBuf and convert to a BigDecimal |
| with the given scale.</div> |
| </li> |
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| <pre>public static <a href="https://docs.oracle.com/javase/8/docs/api/java/math/BigDecimal.html?is-external=true" title="class or interface in java.math">BigDecimal</a> getBigDecimalFromByteBuffer(<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> bytebuf, |
| int scale, |
| int byteWidth)</pre> |
| <div class="block">Read an ArrowType.Decimal from the ByteBuffer and convert to a BigDecimal with the given |
| scale.</div> |
| </li> |
| </ul> |
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| <pre>public static byte[] getByteArrayFromArrowBuf(<a href="../../../../../org/apache/arrow/memory/ArrowBuf.html" title="class in org.apache.arrow.memory">ArrowBuf</a> bytebuf, |
| int index, |
| int byteWidth)</pre> |
| <div class="block">Read an ArrowType.Decimal from the ArrowBuf at the given value index and return it as a byte |
| array.</div> |
| </li> |
| </ul> |
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| <pre>public static boolean checkPrecisionAndScale(<a href="https://docs.oracle.com/javase/8/docs/api/java/math/BigDecimal.html?is-external=true" title="class or interface in java.math">BigDecimal</a> value, |
| int vectorPrecision, |
| int vectorScale)</pre> |
| <div class="block">Check that the BigDecimal scale equals the vectorScale and that the BigDecimal precision is |
| less than or equal to the vectorPrecision. If not, then an UnsupportedOperationException is |
| thrown, otherwise returns true.</div> |
| </li> |
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| <pre>public static boolean checkPrecisionAndScaleNoThrow(<a href="https://docs.oracle.com/javase/8/docs/api/java/math/BigDecimal.html?is-external=true" title="class or interface in java.math">BigDecimal</a> value, |
| int vectorPrecision, |
| int vectorScale)</pre> |
| <div class="block">Check that the BigDecimal scale equals the vectorScale and that the BigDecimal precision is |
| less than or equal to the vectorPrecision. Return true if so, otherwise return false.</div> |
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| <pre>public static boolean checkPrecisionAndScale(int decimalPrecision, |
| int decimalScale, |
| int vectorPrecision, |
| int vectorScale)</pre> |
| <div class="block">Check that the decimal scale equals the vectorScale and that the decimal precision is |
| less than or equal to the vectorPrecision. If not, then an UnsupportedOperationException is |
| thrown, otherwise returns true.</div> |
| </li> |
| </ul> |
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| <pre>public static void writeBigDecimalToArrowBuf(<a href="https://docs.oracle.com/javase/8/docs/api/java/math/BigDecimal.html?is-external=true" title="class or interface in java.math">BigDecimal</a> value, |
| <a href="../../../../../org/apache/arrow/memory/ArrowBuf.html" title="class in org.apache.arrow.memory">ArrowBuf</a> bytebuf, |
| int index, |
| int byteWidth)</pre> |
| <div class="block">Write the given BigDecimal to the ArrowBuf at the given value index. Will throw an |
| UnsupportedOperationException if the decimal size is greater than the Decimal vector byte |
| width.</div> |
| </li> |
| </ul> |
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| <pre>public static void writeLongToArrowBuf(long value, |
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| int index, |
| int byteWidth)</pre> |
| <div class="block">Write the given long to the ArrowBuf at the given value index. |
| This routine extends the original sign bit to a new upper area in 128-bit or 256-bit.</div> |
| </li> |
| </ul> |
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| <pre>public static void writeByteArrayToArrowBuf(byte[] bytes, |
| <a href="../../../../../org/apache/arrow/memory/ArrowBuf.html" title="class in org.apache.arrow.memory">ArrowBuf</a> bytebuf, |
| int index, |
| int byteWidth)</pre> |
| <div class="block">Write the given byte array to the ArrowBuf at the given value index. Will throw an |
| UnsupportedOperationException if the decimal size is greater than the Decimal vector byte |
| width.</div> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| </div> |
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