apidocs/org/apache/drill/exec/physical/rowSet/RowSetWriterImpl.html - drill-site - Git at Google

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 <div class="subTitle">org.apache.drill.exec.physical.rowSet</div>
 <h2 title="Class RowSetWriterImpl" class="title">Class RowSetWriterImpl</h2>
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 <dt>All Implemented Interfaces:</dt>
 <dd><a href="../../../../../../org/apache/drill/exec/physical/rowSet/RowSetWriter.html" title="interface in org.apache.drill.exec.physical.rowSet">RowSetWriter</a>, <a href="../../../../../../org/apache/drill/exec/vector/accessor/ColumnWriter.html" title="interface in org.apache.drill.exec.vector.accessor">ColumnWriter</a>, <a href="../../../../../../org/apache/drill/exec/vector/accessor/TupleWriter.html" title="interface in org.apache.drill.exec.vector.accessor">TupleWriter</a>, <a href="../../../../../../org/apache/drill/exec/vector/accessor/writer/WriterEvents.html" title="interface in org.apache.drill.exec.vector.accessor.writer">WriterEvents</a>, <a href="../../../../../../org/apache/drill/exec/vector/accessor/WriterPosition.html" title="interface in org.apache.drill.exec.vector.accessor">WriterPosition</a></dd>
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 <pre>public class <span class="typeNameLabel">RowSetWriterImpl</span>
 extends <a href="../../../../../../org/apache/drill/exec/vector/accessor/writer/AbstractTupleWriter.html" title="class in org.apache.drill.exec.vector.accessor.writer">AbstractTupleWriter</a>
 implements <a href="../../../../../../org/apache/drill/exec/physical/rowSet/RowSetWriter.html" title="interface in org.apache.drill.exec.physical.rowSet">RowSetWriter</a></pre>
 <div class="block">Implementation of a row set writer. Only available for newly-created,
  empty, direct, single row sets. Rewriting is not allowed, nor is writing
  to a hyper row set.</div>
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 <h3>Nested classes/interfaces inherited from class&nbsp;org.apache.drill.exec.vector.accessor.writer.<a href="../../../../../../org/apache/drill/exec/vector/accessor/writer/AbstractTupleWriter.html" title="class in org.apache.drill.exec.vector.accessor.writer">AbstractTupleWriter</a></h3>
 <code><a href="../../../../../../org/apache/drill/exec/vector/accessor/writer/AbstractTupleWriter.TupleObjectWriter.html" title="class in org.apache.drill.exec.vector.accessor.writer">AbstractTupleWriter.TupleObjectWriter</a>, <a href="../../../../../../org/apache/drill/exec/vector/accessor/writer/AbstractTupleWriter.TupleWriterListener.html" title="interface in org.apache.drill.exec.vector.accessor.writer">AbstractTupleWriter.TupleWriterListener</a></code></li>
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 <th class="colFirst" scope="col">Modifier</th>
 <th class="colLast" scope="col">Constructor and Description</th>
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 <td class="colFirst"><code>protected </code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/drill/exec/physical/rowSet/RowSetWriterImpl.html#RowSetWriterImpl-org.apache.drill.exec.physical.rowSet.RowSet.ExtendableRowSet-org.apache.drill.exec.record.metadata.TupleMetadata-org.apache.drill.exec.physical.rowSet.RowSetWriterImpl.WriterIndexImpl-java.util.List-">RowSetWriterImpl</a></span>(<a href="../../../../../../org/apache/drill/exec/physical/rowSet/RowSet.ExtendableRowSet.html" title="interface in org.apache.drill.exec.physical.rowSet">RowSet.ExtendableRowSet</a>&nbsp;rowSet,
                 <a href="../../../../../../org/apache/drill/exec/record/metadata/TupleMetadata.html" title="interface in org.apache.drill.exec.record.metadata">TupleMetadata</a>&nbsp;schema,
                 org.apache.drill.exec.physical.rowSet.RowSetWriterImpl.WriterIndexImpl&nbsp;index,
                 <a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a>&lt;<a href="../../../../../../org/apache/drill/exec/vector/accessor/writer/AbstractObjectWriter.html" title="class in org.apache.drill.exec.vector.accessor.writer">AbstractObjectWriter</a>&gt;&nbsp;writers)</code>&nbsp;</td>
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 <th class="colFirst" scope="col">Modifier and Type</th>
 <th class="colLast" scope="col">Method and Description</th>
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 <td class="colFirst"><code><a href="../../../../../../org/apache/drill/exec/physical/rowSet/RowSetWriter.html" title="interface in org.apache.drill.exec.physical.rowSet">RowSetWriter</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/drill/exec/physical/rowSet/RowSetWriterImpl.html#addRow-java.lang.Object...-">addRow</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;values)</code>
 <div class="block">Write a row of values, given by Java objects.</div>
 </td>
 </tr>
 <tr id="i1" class="rowColor">
 <td class="colFirst"><code><a href="../../../../../../org/apache/drill/exec/physical/rowSet/RowSetWriter.html" title="interface in org.apache.drill.exec.physical.rowSet">RowSetWriter</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/drill/exec/physical/rowSet/RowSetWriterImpl.html#addSingleCol-java.lang.Object-">addSingleCol</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;value)</code>&nbsp;</td>
 </tr>
 <tr id="i2" class="altColor">
 <td class="colFirst"><code><a href="../../../../../../org/apache/drill/exec/physical/rowSet/RowSet.SingleRowSet.html" title="interface in org.apache.drill.exec.physical.rowSet">RowSet.SingleRowSet</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/drill/exec/physical/rowSet/RowSetWriterImpl.html#done--">done</a></span>()</code>
 <div class="block">Finish writing and finalize the row set being
  written.</div>
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 </tr>
 <tr id="i3" class="rowColor">
 <td class="colFirst"><code>boolean</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/drill/exec/physical/rowSet/RowSetWriterImpl.html#isFull--">isFull</a></span>()</code>
 <div class="block">Indicates if the current row position is valid for
  writing.</div>
 </td>
 </tr>
 <tr id="i4" class="altColor">
 <td class="colFirst"><code>int</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/drill/exec/physical/rowSet/RowSetWriterImpl.html#lastWriteIndex--">lastWriteIndex</a></span>()</code>
 <div class="block">Return the last write position in the vector.</div>
 </td>
 </tr>
 <tr id="i5" class="rowColor">
 <td class="colFirst"><code>int</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/drill/exec/physical/rowSet/RowSetWriterImpl.html#rowIndex--">rowIndex</a></span>()</code>&nbsp;</td>
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 <tr id="i6" class="altColor">
 <td class="colFirst"><code>void</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/drill/exec/physical/rowSet/RowSetWriterImpl.html#save--">save</a></span>()</code>
 <div class="block">Saves the current row and moves to the next row.</div>
 </td>
 </tr>
 <tr id="i7" class="rowColor">
 <td class="colFirst"><code><a href="../../../../../../org/apache/drill/exec/record/metadata/ColumnMetadata.html" title="interface in org.apache.drill.exec.record.metadata">ColumnMetadata</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/drill/exec/physical/rowSet/RowSetWriterImpl.html#schema--">schema</a></span>()</code>
 <div class="block">Returns the schema of the column associated with this writer.</div>
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 <h3>Methods inherited from interface&nbsp;org.apache.drill.exec.vector.accessor.<a href="../../../../../../org/apache/drill/exec/vector/accessor/TupleWriter.html" title="interface in org.apache.drill.exec.vector.accessor">TupleWriter</a></h3>
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 <h4>RowSetWriterImpl</h4>
 <pre>protected&nbsp;RowSetWriterImpl(<a href="../../../../../../org/apache/drill/exec/physical/rowSet/RowSet.ExtendableRowSet.html" title="interface in org.apache.drill.exec.physical.rowSet">RowSet.ExtendableRowSet</a>&nbsp;rowSet,
                            <a href="../../../../../../org/apache/drill/exec/record/metadata/TupleMetadata.html" title="interface in org.apache.drill.exec.record.metadata">TupleMetadata</a>&nbsp;schema,
                            org.apache.drill.exec.physical.rowSet.RowSetWriterImpl.WriterIndexImpl&nbsp;index,
                            <a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a>&lt;<a href="../../../../../../org/apache/drill/exec/vector/accessor/writer/AbstractObjectWriter.html" title="class in org.apache.drill.exec.vector.accessor.writer">AbstractObjectWriter</a>&gt;&nbsp;writers)</pre>
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 <a name="addRow-java.lang.Object...-">
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 <h4>addRow</h4>
 <pre>public&nbsp;<a href="../../../../../../org/apache/drill/exec/physical/rowSet/RowSetWriter.html" title="interface in org.apache.drill.exec.physical.rowSet">RowSetWriter</a>&nbsp;addRow(<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;values)</pre>
 <div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../../../../org/apache/drill/exec/physical/rowSet/RowSetWriter.html#addRow-java.lang.Object...-">RowSetWriter</a></code></span></div>
 <div class="block">Write a row of values, given by Java objects. Object type must
  match expected column type. Stops writing, and returns false,
  if any value causes vector overflow. Value format:
  <ul>
  <li>For scalars, the value as a suitable Java type (int or
  Integer, say, for <tt>INTEGER</tt> values.)</li>
  <li>For scalar arrays, an array of a suitable Java primitive type
  for scalars. For example, <tt>int[]</tt> for an <tt>INTEGER</tt>
  column.</li>
  <li>For a Map, an <tt>Object<tt> array with values encoded as above.
  (In fact, the list here is the same as the map format.</li>
  <li>For a list (repeated map, list of list), an <tt>Object</tt>
  array with values encoded as above. (So, for a repeated map, an outer
  <tt>Object</tt> map encodes the array, an inner one encodes the
  map members.</li>
  </ul></div>
 <dl>
 <dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
 <dd><code><a href="../../../../../../org/apache/drill/exec/physical/rowSet/RowSetWriter.html#addRow-java.lang.Object...-">addRow</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../../org/apache/drill/exec/physical/rowSet/RowSetWriter.html" title="interface in org.apache.drill.exec.physical.rowSet">RowSetWriter</a></code></dd>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>values</code> - variable-length argument list of column values</dd>
 </dl>
 </li>
 </ul>
 <a name="addSingleCol-java.lang.Object-">
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 <ul class="blockList">
 <li class="blockList">
 <h4>addSingleCol</h4>
 <pre>public&nbsp;<a href="../../../../../../org/apache/drill/exec/physical/rowSet/RowSetWriter.html" title="interface in org.apache.drill.exec.physical.rowSet">RowSetWriter</a>&nbsp;addSingleCol(<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;value)</pre>
 <dl>
 <dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
 <dd><code><a href="../../../../../../org/apache/drill/exec/physical/rowSet/RowSetWriter.html#addSingleCol-java.lang.Object-">addSingleCol</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../../org/apache/drill/exec/physical/rowSet/RowSetWriter.html" title="interface in org.apache.drill.exec.physical.rowSet">RowSetWriter</a></code></dd>
 </dl>
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 <a name="rowIndex--">
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 <h4>rowIndex</h4>
 <pre>public&nbsp;int&nbsp;rowIndex()</pre>
 <dl>
 <dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
 <dd><code><a href="../../../../../../org/apache/drill/exec/physical/rowSet/RowSetWriter.html#rowIndex--">rowIndex</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../../org/apache/drill/exec/physical/rowSet/RowSetWriter.html" title="interface in org.apache.drill.exec.physical.rowSet">RowSetWriter</a></code></dd>
 </dl>
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 <h4>save</h4>
 <pre>public&nbsp;void&nbsp;save()</pre>
 <div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../../../../org/apache/drill/exec/physical/rowSet/RowSetWriter.html#save--">RowSetWriter</a></code></span></div>
 <div class="block">Saves the current row and moves to the next row.
  Done automatically if using <tt>setRow()</tt>.</div>
 <dl>
 <dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
 <dd><code><a href="../../../../../../org/apache/drill/exec/physical/rowSet/RowSetWriter.html#save--">save</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../../org/apache/drill/exec/physical/rowSet/RowSetWriter.html" title="interface in org.apache.drill.exec.physical.rowSet">RowSetWriter</a></code></dd>
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 <h4>isFull</h4>
 <pre>public&nbsp;boolean&nbsp;isFull()</pre>
 <div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../../../../org/apache/drill/exec/physical/rowSet/RowSetWriter.html#isFull--">RowSetWriter</a></code></span></div>
 <div class="block">Indicates if the current row position is valid for
  writing. Will be false on the first row, and all subsequent
  rows until either the maximum number of rows are written,
  or a vector overflows. After that, will return true. The
  method returns false as soon as any column writer overflows
  even in the middle of a row write. That is, this writer
  does not automatically handle overflow rows because that
  added complexity is seldom needed for tests.</div>
 <dl>
 <dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
 <dd><code><a href="../../../../../../org/apache/drill/exec/physical/rowSet/RowSetWriter.html#isFull--">isFull</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../../org/apache/drill/exec/physical/rowSet/RowSetWriter.html" title="interface in org.apache.drill.exec.physical.rowSet">RowSetWriter</a></code></dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>true if the current row can be written, false
  if not</dd>
 </dl>
 </li>
 </ul>
 <a name="done--">
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 <h4>done</h4>
 <pre>public&nbsp;<a href="../../../../../../org/apache/drill/exec/physical/rowSet/RowSet.SingleRowSet.html" title="interface in org.apache.drill.exec.physical.rowSet">RowSet.SingleRowSet</a>&nbsp;done()</pre>
 <div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../../../../org/apache/drill/exec/physical/rowSet/RowSetWriter.html#done--">RowSetWriter</a></code></span></div>
 <div class="block">Finish writing and finalize the row set being
  written.</div>
 <dl>
 <dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
 <dd><code><a href="../../../../../../org/apache/drill/exec/physical/rowSet/RowSetWriter.html#done--">done</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../../org/apache/drill/exec/physical/rowSet/RowSetWriter.html" title="interface in org.apache.drill.exec.physical.rowSet">RowSetWriter</a></code></dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>the completed, read-only row set without a
  selection vector</dd>
 </dl>
 </li>
 </ul>
 <a name="lastWriteIndex--">
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 <h4>lastWriteIndex</h4>
 <pre>public&nbsp;int&nbsp;lastWriteIndex()</pre>
 <div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../../../../org/apache/drill/exec/vector/accessor/WriterPosition.html#lastWriteIndex--">WriterPosition</a></code></span></div>
 <div class="block">Return the last write position in the vector. This may be the
  same as the writer index position (if the vector was written at
  that point), or an earlier point. In either case, this value
  points to the last valid value in the vector.</div>
 <dl>
 <dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
 <dd><code><a href="../../../../../../org/apache/drill/exec/vector/accessor/WriterPosition.html#lastWriteIndex--">lastWriteIndex</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../../org/apache/drill/exec/vector/accessor/WriterPosition.html" title="interface in org.apache.drill.exec.vector.accessor">WriterPosition</a></code></dd>
 <dt><span class="overrideSpecifyLabel">Overrides:</span></dt>
 <dd><code><a href="../../../../../../org/apache/drill/exec/vector/accessor/writer/AbstractTupleWriter.html#lastWriteIndex--">lastWriteIndex</a></code>&nbsp;in class&nbsp;<code><a href="../../../../../../org/apache/drill/exec/vector/accessor/writer/AbstractTupleWriter.html" title="class in org.apache.drill.exec.vector.accessor.writer">AbstractTupleWriter</a></code></dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>index of the last valid value in the vector</dd>
 </dl>
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 <h4>schema</h4>
 <pre>public&nbsp;<a href="../../../../../../org/apache/drill/exec/record/metadata/ColumnMetadata.html" title="interface in org.apache.drill.exec.record.metadata">ColumnMetadata</a>&nbsp;schema()</pre>
 <div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../../../../org/apache/drill/exec/vector/accessor/ColumnWriter.html#schema--">ColumnWriter</a></code></span></div>
 <div class="block">Returns the schema of the column associated with this writer.</div>
 <dl>
 <dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
 <dd><code><a href="../../../../../../org/apache/drill/exec/vector/accessor/ColumnWriter.html#schema--">schema</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../../org/apache/drill/exec/vector/accessor/ColumnWriter.html" title="interface in org.apache.drill.exec.vector.accessor">ColumnWriter</a></code></dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>schema for this writer's column</dd>
 </dl>
 </li>
 </ul>
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