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| <div class="subTitle">org.apache.arrow.vector.complex</div> |
| <h2 title="Class MapVector" class="title">Class MapVector</h2> |
| </div> |
| <div class="contentContainer"> |
| <ul class="inheritance"> |
| <li><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">java.lang.Object</a></li> |
| <li> |
| <ul class="inheritance"> |
| <li><a href="../../../../../org/apache/arrow/vector/BaseValueVector.html" title="class in org.apache.arrow.vector">org.apache.arrow.vector.BaseValueVector</a></li> |
| <li> |
| <ul class="inheritance"> |
| <li><a href="../../../../../org/apache/arrow/vector/complex/BaseRepeatedValueVector.html" title="class in org.apache.arrow.vector.complex">org.apache.arrow.vector.complex.BaseRepeatedValueVector</a></li> |
| <li> |
| <ul class="inheritance"> |
| <li><a href="../../../../../org/apache/arrow/vector/complex/ListVector.html" title="class in org.apache.arrow.vector.complex">org.apache.arrow.vector.complex.ListVector</a></li> |
| <li> |
| <ul class="inheritance"> |
| <li>org.apache.arrow.vector.complex.MapVector</li> |
| </ul> |
| </li> |
| </ul> |
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| <dl> |
| <dt>All Implemented Interfaces:</dt> |
| <dd><a href="https://docs.oracle.com/javase/8/docs/api/java/io/Closeable.html?is-external=true" title="class or interface in java.io">Closeable</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/AutoCloseable.html?is-external=true" title="class or interface in java.lang">AutoCloseable</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Iterable.html?is-external=true" title="class or interface in java.lang">Iterable</a><<a href="../../../../../org/apache/arrow/vector/ValueVector.html" title="interface in org.apache.arrow.vector">ValueVector</a>>, <a href="../../../../../org/apache/arrow/vector/complex/BaseListVector.html" title="interface in org.apache.arrow.vector.complex">BaseListVector</a>, <a href="../../../../../org/apache/arrow/vector/complex/PromotableVector.html" title="interface in org.apache.arrow.vector.complex">PromotableVector</a>, <a href="../../../../../org/apache/arrow/vector/complex/RepeatedValueVector.html" title="interface in org.apache.arrow.vector.complex">RepeatedValueVector</a>, <a href="../../../../../org/apache/arrow/vector/DensityAwareVector.html" title="interface in org.apache.arrow.vector">DensityAwareVector</a>, <a href="../../../../../org/apache/arrow/vector/FieldVector.html" title="interface in org.apache.arrow.vector">FieldVector</a>, <a href="../../../../../org/apache/arrow/vector/ValueVector.html" title="interface in org.apache.arrow.vector">ValueVector</a></dd> |
| </dl> |
| <hr> |
| <br> |
| <pre>public class <span class="typeNameLabel">MapVector</span> |
| extends <a href="../../../../../org/apache/arrow/vector/complex/ListVector.html" title="class in org.apache.arrow.vector.complex">ListVector</a></pre> |
| <div class="block">A MapVector is used to store entries of key/value pairs. It is a container vector that is |
| composed of a list of struct values with "key" and "value" fields. The MapVector is nullable, |
| but if a map is set at a given index, there must be an entry. In other words, the StructVector |
| data is non-nullable. Also for a given entry, the "key" is non-nullable, however the "value" can |
| be null.</div> |
| </li> |
| </ul> |
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| <!-- =========== FIELD SUMMARY =========== --> |
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| <h3>Field Summary</h3> |
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| <caption><span>Fields</span><span class="tabEnd"> </span></caption> |
| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colLast" scope="col">Field and Description</th> |
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| <td class="colFirst"><code>static <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="../../../../../org/apache/arrow/vector/complex/MapVector.html#DATA_VECTOR_NAME">DATA_VECTOR_NAME</a></span></code> </td> |
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| <tr class="rowColor"> |
| <td class="colFirst"><code>static <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="../../../../../org/apache/arrow/vector/complex/MapVector.html#KEY_NAME">KEY_NAME</a></span></code> </td> |
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| <td class="colFirst"><code>static <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="../../../../../org/apache/arrow/vector/complex/MapVector.html#VALUE_NAME">VALUE_NAME</a></span></code> </td> |
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| <h3>Fields inherited from class org.apache.arrow.vector.complex.<a href="../../../../../org/apache/arrow/vector/complex/ListVector.html" title="class in org.apache.arrow.vector.complex">ListVector</a></h3> |
| <code><a href="../../../../../org/apache/arrow/vector/complex/ListVector.html#field">field</a>, <a href="../../../../../org/apache/arrow/vector/complex/ListVector.html#lastSet">lastSet</a>, <a href="../../../../../org/apache/arrow/vector/complex/ListVector.html#reader">reader</a>, <a href="../../../../../org/apache/arrow/vector/complex/ListVector.html#validityAllocationSizeInBytes">validityAllocationSizeInBytes</a>, <a href="../../../../../org/apache/arrow/vector/complex/ListVector.html#validityBuffer">validityBuffer</a></code></li> |
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| <h3>Fields inherited from class org.apache.arrow.vector.complex.<a href="../../../../../org/apache/arrow/vector/complex/BaseRepeatedValueVector.html" title="class in org.apache.arrow.vector.complex">BaseRepeatedValueVector</a></h3> |
| <code><a href="../../../../../org/apache/arrow/vector/complex/BaseRepeatedValueVector.html#DEFAULT_DATA_VECTOR">DEFAULT_DATA_VECTOR</a>, <a href="../../../../../org/apache/arrow/vector/complex/BaseRepeatedValueVector.html#defaultDataVectorName">defaultDataVectorName</a>, <a href="../../../../../org/apache/arrow/vector/complex/BaseRepeatedValueVector.html#OFFSET_WIDTH">OFFSET_WIDTH</a>, <a href="../../../../../org/apache/arrow/vector/complex/BaseRepeatedValueVector.html#offsetAllocationSizeInBytes">offsetAllocationSizeInBytes</a>, <a href="../../../../../org/apache/arrow/vector/complex/BaseRepeatedValueVector.html#offsetBuffer">offsetBuffer</a>, <a href="../../../../../org/apache/arrow/vector/complex/BaseRepeatedValueVector.html#repeatedCallBack">repeatedCallBack</a>, <a href="../../../../../org/apache/arrow/vector/complex/BaseRepeatedValueVector.html#valueCount">valueCount</a>, <a href="../../../../../org/apache/arrow/vector/complex/BaseRepeatedValueVector.html#vector">vector</a></code></li> |
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| <h3>Fields inherited from class org.apache.arrow.vector.<a href="../../../../../org/apache/arrow/vector/BaseValueVector.html" title="class in org.apache.arrow.vector">BaseValueVector</a></h3> |
| <code><a href="../../../../../org/apache/arrow/vector/BaseValueVector.html#allocator">allocator</a>, <a href="../../../../../org/apache/arrow/vector/BaseValueVector.html#fieldReader">fieldReader</a>, <a href="../../../../../org/apache/arrow/vector/BaseValueVector.html#INITIAL_VALUE_ALLOCATION">INITIAL_VALUE_ALLOCATION</a>, <a href="../../../../../org/apache/arrow/vector/BaseValueVector.html#MAX_ALLOCATION_SIZE">MAX_ALLOCATION_SIZE</a>, <a href="../../../../../org/apache/arrow/vector/BaseValueVector.html#MAX_ALLOCATION_SIZE_PROPERTY">MAX_ALLOCATION_SIZE_PROPERTY</a></code></li> |
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| <h3>Fields inherited from interface org.apache.arrow.vector.complex.<a href="../../../../../org/apache/arrow/vector/complex/RepeatedValueVector.html" title="interface in org.apache.arrow.vector.complex">RepeatedValueVector</a></h3> |
| <code><a href="../../../../../org/apache/arrow/vector/complex/RepeatedValueVector.html#DEFAULT_REPEAT_PER_RECORD">DEFAULT_REPEAT_PER_RECORD</a></code></li> |
| </ul> |
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| <!-- ======== CONSTRUCTOR SUMMARY ======== --> |
| <ul class="blockList"> |
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| </a> |
| <h3>Constructor Summary</h3> |
| <table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="Constructor Summary table, listing constructors, and an explanation"> |
| <caption><span>Constructors</span><span class="tabEnd"> </span></caption> |
| <tr> |
| <th class="colOne" scope="col">Constructor and Description</th> |
| </tr> |
| <tr class="altColor"> |
| <td class="colOne"><code><span class="memberNameLink"><a href="../../../../../org/apache/arrow/vector/complex/MapVector.html#MapVector-org.apache.arrow.vector.types.pojo.Field-org.apache.arrow.memory.BufferAllocator-org.apache.arrow.vector.util.CallBack-">MapVector</a></span>(<a href="../../../../../org/apache/arrow/vector/types/pojo/Field.html" title="class in org.apache.arrow.vector.types.pojo">Field</a> field, |
| <a href="../../../../../org/apache/arrow/memory/BufferAllocator.html" title="interface in org.apache.arrow.memory">BufferAllocator</a> allocator, |
| <a href="../../../../../org/apache/arrow/vector/util/CallBack.html" title="interface in org.apache.arrow.vector.util">CallBack</a> callBack)</code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colOne"><code><span class="memberNameLink"><a href="../../../../../org/apache/arrow/vector/complex/MapVector.html#MapVector-java.lang.String-org.apache.arrow.memory.BufferAllocator-org.apache.arrow.vector.types.pojo.FieldType-org.apache.arrow.vector.util.CallBack-">MapVector</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> name, |
| <a href="../../../../../org/apache/arrow/memory/BufferAllocator.html" title="interface in org.apache.arrow.memory">BufferAllocator</a> allocator, |
| <a href="../../../../../org/apache/arrow/vector/types/pojo/FieldType.html" title="class in org.apache.arrow.vector.types.pojo">FieldType</a> fieldType, |
| <a href="../../../../../org/apache/arrow/vector/util/CallBack.html" title="interface in org.apache.arrow.vector.util">CallBack</a> callBack)</code> |
| <div class="block">Construct a MapVector instance.</div> |
| </td> |
| </tr> |
| </table> |
| </li> |
| </ul> |
| <!-- ========== METHOD SUMMARY =========== --> |
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| </a> |
| <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"> </span></span><span id="t1" class="tableTab"><span><a href="javascript:show(1);">Static Methods</a></span><span class="tabEnd"> </span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">Instance 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> |
| <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>static <a href="../../../../../org/apache/arrow/vector/complex/MapVector.html" title="class in org.apache.arrow.vector.complex">MapVector</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/arrow/vector/complex/MapVector.html#empty-java.lang.String-org.apache.arrow.memory.BufferAllocator-boolean-">empty</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> name, |
| <a href="../../../../../org/apache/arrow/memory/BufferAllocator.html" title="interface in org.apache.arrow.memory">BufferAllocator</a> allocator, |
| boolean keysSorted)</code> |
| <div class="block">Construct an empty MapVector with no data.</div> |
| </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code><a href="../../../../../org/apache/arrow/vector/types/Types.MinorType.html" title="enum in org.apache.arrow.vector.types">Types.MinorType</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/arrow/vector/complex/MapVector.html#getMinorType--">getMinorType</a></span>()</code> </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code><a href="../../../../../org/apache/arrow/vector/complex/impl/UnionMapReader.html" title="class in org.apache.arrow.vector.complex.impl">UnionMapReader</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/arrow/vector/complex/MapVector.html#getReader--">getReader</a></span>()</code> |
| <div class="block">Get the reader for this MapVector instance.</div> |
| </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code><a href="../../../../../org/apache/arrow/vector/util/TransferPair.html" title="interface in org.apache.arrow.vector.util">TransferPair</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/arrow/vector/complex/MapVector.html#getTransferPair-org.apache.arrow.vector.types.pojo.Field-org.apache.arrow.memory.BufferAllocator-">getTransferPair</a></span>(<a href="../../../../../org/apache/arrow/vector/types/pojo/Field.html" title="class in org.apache.arrow.vector.types.pojo">Field</a> field, |
| <a href="../../../../../org/apache/arrow/memory/BufferAllocator.html" title="interface in org.apache.arrow.memory">BufferAllocator</a> allocator)</code> |
| <div class="block">To transfer quota responsibility.</div> |
| </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code><a href="../../../../../org/apache/arrow/vector/util/TransferPair.html" title="interface in org.apache.arrow.vector.util">TransferPair</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/arrow/vector/complex/MapVector.html#getTransferPair-org.apache.arrow.vector.types.pojo.Field-org.apache.arrow.memory.BufferAllocator-org.apache.arrow.vector.util.CallBack-">getTransferPair</a></span>(<a href="../../../../../org/apache/arrow/vector/types/pojo/Field.html" title="class in org.apache.arrow.vector.types.pojo">Field</a> field, |
| <a href="../../../../../org/apache/arrow/memory/BufferAllocator.html" title="interface in org.apache.arrow.memory">BufferAllocator</a> allocator, |
| <a href="../../../../../org/apache/arrow/vector/util/CallBack.html" title="interface in org.apache.arrow.vector.util">CallBack</a> callBack)</code> |
| <div class="block">To transfer quota responsibility.</div> |
| </td> |
| </tr> |
| <tr id="i5" class="rowColor"> |
| <td class="colFirst"><code><a href="../../../../../org/apache/arrow/vector/util/TransferPair.html" title="interface in org.apache.arrow.vector.util">TransferPair</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/arrow/vector/complex/MapVector.html#getTransferPair-java.lang.String-org.apache.arrow.memory.BufferAllocator-">getTransferPair</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> ref, |
| <a href="../../../../../org/apache/arrow/memory/BufferAllocator.html" title="interface in org.apache.arrow.memory">BufferAllocator</a> allocator)</code> |
| <div class="block">To transfer quota responsibility.</div> |
| </td> |
| </tr> |
| <tr id="i6" class="altColor"> |
| <td class="colFirst"><code><a href="../../../../../org/apache/arrow/vector/util/TransferPair.html" title="interface in org.apache.arrow.vector.util">TransferPair</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/arrow/vector/complex/MapVector.html#getTransferPair-java.lang.String-org.apache.arrow.memory.BufferAllocator-org.apache.arrow.vector.util.CallBack-">getTransferPair</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> ref, |
| <a href="../../../../../org/apache/arrow/memory/BufferAllocator.html" title="interface in org.apache.arrow.memory">BufferAllocator</a> allocator, |
| <a href="../../../../../org/apache/arrow/vector/util/CallBack.html" title="interface in org.apache.arrow.vector.util">CallBack</a> callBack)</code> |
| <div class="block">To transfer quota responsibility.</div> |
| </td> |
| </tr> |
| <tr id="i7" class="rowColor"> |
| <td class="colFirst"><code><a href="../../../../../org/apache/arrow/vector/complex/impl/UnionMapWriter.html" title="class in org.apache.arrow.vector.complex.impl">UnionMapWriter</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/arrow/vector/complex/MapVector.html#getWriter--">getWriter</a></span>()</code> |
| <div class="block">Get the writer for this MapVector instance.</div> |
| </td> |
| </tr> |
| <tr id="i8" class="altColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/arrow/vector/complex/MapVector.html#initializeChildrenFromFields-java.util.List-">initializeChildrenFromFields</a></span>(<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><<a href="../../../../../org/apache/arrow/vector/types/pojo/Field.html" title="class in org.apache.arrow.vector.types.pojo">Field</a>> children)</code> |
| <div class="block">Initialize child vectors of the map from the given list of fields.</div> |
| </td> |
| </tr> |
| <tr id="i9" class="rowColor"> |
| <td class="colFirst"><code><a href="../../../../../org/apache/arrow/vector/util/TransferPair.html" title="interface in org.apache.arrow.vector.util">TransferPair</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/arrow/vector/complex/MapVector.html#makeTransferPair-org.apache.arrow.vector.ValueVector-">makeTransferPair</a></span>(<a href="../../../../../org/apache/arrow/vector/ValueVector.html" title="interface in org.apache.arrow.vector">ValueVector</a> target)</code> |
| <div class="block">Makes a new transfer pair used to transfer underlying buffers.</div> |
| </td> |
| </tr> |
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| <h3>Methods inherited from class org.apache.arrow.vector.complex.<a href="../../../../../org/apache/arrow/vector/complex/ListVector.html" title="class in org.apache.arrow.vector.complex">ListVector</a></h3> |
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| <code><a href="../../../../../org/apache/arrow/vector/FieldVector.html#exportBuffer-org.apache.arrow.memory.ArrowBuf-java.util.List-org.apache.arrow.memory.ArrowBuf-long-boolean-">exportBuffer</a></code></li> |
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| <code><a href="../../../../../org/apache/arrow/vector/ValueVector.html#close--">close</a>, <a href="../../../../../org/apache/arrow/vector/ValueVector.html#getAllocator--">getAllocator</a>, <a href="../../../../../org/apache/arrow/vector/ValueVector.html#getTransferPair-org.apache.arrow.memory.BufferAllocator-">getTransferPair</a>, <a href="../../../../../org/apache/arrow/vector/ValueVector.html#validate--">validate</a>, <a href="../../../../../org/apache/arrow/vector/ValueVector.html#validateFull--">validateFull</a></code></li> |
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| <code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Iterable.html?is-external=true#forEach-java.util.function.Consumer-" title="class or interface in java.lang">forEach</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Iterable.html?is-external=true#spliterator--" title="class or interface in java.lang">spliterator</a></code></li> |
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| <dl> |
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| <dd><a href="../../../../../constant-values.html#org.apache.arrow.vector.complex.MapVector.KEY_NAME">Constant Field Values</a></dd> |
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| <a name="MapVector-java.lang.String-org.apache.arrow.memory.BufferAllocator-org.apache.arrow.vector.types.pojo.FieldType-org.apache.arrow.vector.util.CallBack-"> |
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| <h4>MapVector</h4> |
| <pre>public MapVector(<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> name, |
| <a href="../../../../../org/apache/arrow/memory/BufferAllocator.html" title="interface in org.apache.arrow.memory">BufferAllocator</a> allocator, |
| <a href="../../../../../org/apache/arrow/vector/types/pojo/FieldType.html" title="class in org.apache.arrow.vector.types.pojo">FieldType</a> fieldType, |
| <a href="../../../../../org/apache/arrow/vector/util/CallBack.html" title="interface in org.apache.arrow.vector.util">CallBack</a> callBack)</pre> |
| <div class="block">Construct a MapVector instance.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>name</code> - The name of the vector.</dd> |
| <dd><code>allocator</code> - The allocator used for allocating/reallocating buffers.</dd> |
| <dd><code>fieldType</code> - The type definition of the MapVector.</dd> |
| <dd><code>callBack</code> - A schema change callback.</dd> |
| </dl> |
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| <a name="MapVector-org.apache.arrow.vector.types.pojo.Field-org.apache.arrow.memory.BufferAllocator-org.apache.arrow.vector.util.CallBack-"> |
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| <h4>MapVector</h4> |
| <pre>public MapVector(<a href="../../../../../org/apache/arrow/vector/types/pojo/Field.html" title="class in org.apache.arrow.vector.types.pojo">Field</a> field, |
| <a href="../../../../../org/apache/arrow/memory/BufferAllocator.html" title="interface in org.apache.arrow.memory">BufferAllocator</a> allocator, |
| <a href="../../../../../org/apache/arrow/vector/util/CallBack.html" title="interface in org.apache.arrow.vector.util">CallBack</a> callBack)</pre> |
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| <pre>public static <a href="../../../../../org/apache/arrow/vector/complex/MapVector.html" title="class in org.apache.arrow.vector.complex">MapVector</a> empty(<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> name, |
| <a href="../../../../../org/apache/arrow/memory/BufferAllocator.html" title="interface in org.apache.arrow.memory">BufferAllocator</a> allocator, |
| boolean keysSorted)</pre> |
| <div class="block">Construct an empty MapVector with no data. Child vectors must be added subsequently.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>name</code> - The name of the vector.</dd> |
| <dd><code>allocator</code> - The allocator used for allocating/reallocating buffers.</dd> |
| <dd><code>keysSorted</code> - True if the map keys have been pre-sorted.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>a new instance of MapVector.</dd> |
| </dl> |
| </li> |
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| <a name="initializeChildrenFromFields-java.util.List-"> |
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| <h4>initializeChildrenFromFields</h4> |
| <pre>public void initializeChildrenFromFields(<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><<a href="../../../../../org/apache/arrow/vector/types/pojo/Field.html" title="class in org.apache.arrow.vector.types.pojo">Field</a>> children)</pre> |
| <div class="block">Initialize child vectors of the map from the given list of fields.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../org/apache/arrow/vector/FieldVector.html#initializeChildrenFromFields-java.util.List-">initializeChildrenFromFields</a></code> in interface <code><a href="../../../../../org/apache/arrow/vector/FieldVector.html" title="interface in org.apache.arrow.vector">FieldVector</a></code></dd> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="../../../../../org/apache/arrow/vector/complex/ListVector.html#initializeChildrenFromFields-java.util.List-">initializeChildrenFromFields</a></code> in class <code><a href="../../../../../org/apache/arrow/vector/complex/ListVector.html" title="class in org.apache.arrow.vector.complex">ListVector</a></code></dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>children</code> - List of fields that will be children of this MapVector.</dd> |
| </dl> |
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| <a name="getWriter--"> |
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| <h4>getWriter</h4> |
| <pre>public <a href="../../../../../org/apache/arrow/vector/complex/impl/UnionMapWriter.html" title="class in org.apache.arrow.vector.complex.impl">UnionMapWriter</a> getWriter()</pre> |
| <div class="block">Get the writer for this MapVector instance.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="../../../../../org/apache/arrow/vector/complex/ListVector.html#getWriter--">getWriter</a></code> in class <code><a href="../../../../../org/apache/arrow/vector/complex/ListVector.html" title="class in org.apache.arrow.vector.complex">ListVector</a></code></dd> |
| </dl> |
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| <h4>getReader</h4> |
| <pre>public <a href="../../../../../org/apache/arrow/vector/complex/impl/UnionMapReader.html" title="class in org.apache.arrow.vector.complex.impl">UnionMapReader</a> getReader()</pre> |
| <div class="block">Get the reader for this MapVector instance.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../org/apache/arrow/vector/ValueVector.html#getReader--">getReader</a></code> in interface <code><a href="../../../../../org/apache/arrow/vector/ValueVector.html" title="interface in org.apache.arrow.vector">ValueVector</a></code></dd> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="../../../../../org/apache/arrow/vector/complex/ListVector.html#getReader--">getReader</a></code> in class <code><a href="../../../../../org/apache/arrow/vector/complex/ListVector.html" title="class in org.apache.arrow.vector.complex">ListVector</a></code></dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>Concrete instance of FieldReader by using double-checked locking.</dd> |
| </dl> |
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| <a name="getMinorType--"> |
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| <h4>getMinorType</h4> |
| <pre>public <a href="../../../../../org/apache/arrow/vector/types/Types.MinorType.html" title="enum in org.apache.arrow.vector.types">Types.MinorType</a> getMinorType()</pre> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../org/apache/arrow/vector/ValueVector.html#getMinorType--">getMinorType</a></code> in interface <code><a href="../../../../../org/apache/arrow/vector/ValueVector.html" title="interface in org.apache.arrow.vector">ValueVector</a></code></dd> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="../../../../../org/apache/arrow/vector/complex/ListVector.html#getMinorType--">getMinorType</a></code> in class <code><a href="../../../../../org/apache/arrow/vector/complex/ListVector.html" title="class in org.apache.arrow.vector.complex">ListVector</a></code></dd> |
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| <h4>getTransferPair</h4> |
| <pre>public <a href="../../../../../org/apache/arrow/vector/util/TransferPair.html" title="interface in org.apache.arrow.vector.util">TransferPair</a> getTransferPair(<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> ref, |
| <a href="../../../../../org/apache/arrow/memory/BufferAllocator.html" title="interface in org.apache.arrow.memory">BufferAllocator</a> allocator)</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../../../../org/apache/arrow/vector/ValueVector.html#getTransferPair-java.lang.String-org.apache.arrow.memory.BufferAllocator-">ValueVector</a></code></span></div> |
| <div class="block">To transfer quota responsibility.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../org/apache/arrow/vector/ValueVector.html#getTransferPair-java.lang.String-org.apache.arrow.memory.BufferAllocator-">getTransferPair</a></code> in interface <code><a href="../../../../../org/apache/arrow/vector/ValueVector.html" title="interface in org.apache.arrow.vector">ValueVector</a></code></dd> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="../../../../../org/apache/arrow/vector/complex/ListVector.html#getTransferPair-java.lang.String-org.apache.arrow.memory.BufferAllocator-">getTransferPair</a></code> in class <code><a href="../../../../../org/apache/arrow/vector/complex/ListVector.html" title="class in org.apache.arrow.vector.complex">ListVector</a></code></dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>ref</code> - the name of the vector</dd> |
| <dd><code>allocator</code> - the target allocator</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>a <a href="../../../../../org/apache/arrow/vector/util/TransferPair.html" title="interface in org.apache.arrow.vector.util"><code>transfer pair</code></a>, creating a new target vector of |
| the same type.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getTransferPair-org.apache.arrow.vector.types.pojo.Field-org.apache.arrow.memory.BufferAllocator-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
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| <h4>getTransferPair</h4> |
| <pre>public <a href="../../../../../org/apache/arrow/vector/util/TransferPair.html" title="interface in org.apache.arrow.vector.util">TransferPair</a> getTransferPair(<a href="../../../../../org/apache/arrow/vector/types/pojo/Field.html" title="class in org.apache.arrow.vector.types.pojo">Field</a> field, |
| <a href="../../../../../org/apache/arrow/memory/BufferAllocator.html" title="interface in org.apache.arrow.memory">BufferAllocator</a> allocator)</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../../../../org/apache/arrow/vector/ValueVector.html#getTransferPair-org.apache.arrow.vector.types.pojo.Field-org.apache.arrow.memory.BufferAllocator-">ValueVector</a></code></span></div> |
| <div class="block">To transfer quota responsibility.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../org/apache/arrow/vector/ValueVector.html#getTransferPair-org.apache.arrow.vector.types.pojo.Field-org.apache.arrow.memory.BufferAllocator-">getTransferPair</a></code> in interface <code><a href="../../../../../org/apache/arrow/vector/ValueVector.html" title="interface in org.apache.arrow.vector">ValueVector</a></code></dd> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="../../../../../org/apache/arrow/vector/complex/ListVector.html#getTransferPair-org.apache.arrow.vector.types.pojo.Field-org.apache.arrow.memory.BufferAllocator-">getTransferPair</a></code> in class <code><a href="../../../../../org/apache/arrow/vector/complex/ListVector.html" title="class in org.apache.arrow.vector.complex">ListVector</a></code></dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>field</code> - the Field object used by the target vector</dd> |
| <dd><code>allocator</code> - the target allocator</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>a <a href="../../../../../org/apache/arrow/vector/util/TransferPair.html" title="interface in org.apache.arrow.vector.util"><code>transfer pair</code></a>, creating a new target vector of |
| the same type.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getTransferPair-java.lang.String-org.apache.arrow.memory.BufferAllocator-org.apache.arrow.vector.util.CallBack-"> |
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| </a> |
| <ul class="blockList"> |
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| <h4>getTransferPair</h4> |
| <pre>public <a href="../../../../../org/apache/arrow/vector/util/TransferPair.html" title="interface in org.apache.arrow.vector.util">TransferPair</a> getTransferPair(<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> ref, |
| <a href="../../../../../org/apache/arrow/memory/BufferAllocator.html" title="interface in org.apache.arrow.memory">BufferAllocator</a> allocator, |
| <a href="../../../../../org/apache/arrow/vector/util/CallBack.html" title="interface in org.apache.arrow.vector.util">CallBack</a> callBack)</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../../../../org/apache/arrow/vector/ValueVector.html#getTransferPair-java.lang.String-org.apache.arrow.memory.BufferAllocator-org.apache.arrow.vector.util.CallBack-">ValueVector</a></code></span></div> |
| <div class="block">To transfer quota responsibility.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../org/apache/arrow/vector/ValueVector.html#getTransferPair-java.lang.String-org.apache.arrow.memory.BufferAllocator-org.apache.arrow.vector.util.CallBack-">getTransferPair</a></code> in interface <code><a href="../../../../../org/apache/arrow/vector/ValueVector.html" title="interface in org.apache.arrow.vector">ValueVector</a></code></dd> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="../../../../../org/apache/arrow/vector/complex/ListVector.html#getTransferPair-java.lang.String-org.apache.arrow.memory.BufferAllocator-org.apache.arrow.vector.util.CallBack-">getTransferPair</a></code> in class <code><a href="../../../../../org/apache/arrow/vector/complex/ListVector.html" title="class in org.apache.arrow.vector.complex">ListVector</a></code></dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>ref</code> - the name of the vector</dd> |
| <dd><code>allocator</code> - the target allocator</dd> |
| <dd><code>callBack</code> - A schema change callback.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>a <a href="../../../../../org/apache/arrow/vector/util/TransferPair.html" title="interface in org.apache.arrow.vector.util"><code>transfer pair</code></a>, creating a new target vector of |
| the same type.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getTransferPair-org.apache.arrow.vector.types.pojo.Field-org.apache.arrow.memory.BufferAllocator-org.apache.arrow.vector.util.CallBack-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
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| <h4>getTransferPair</h4> |
| <pre>public <a href="../../../../../org/apache/arrow/vector/util/TransferPair.html" title="interface in org.apache.arrow.vector.util">TransferPair</a> getTransferPair(<a href="../../../../../org/apache/arrow/vector/types/pojo/Field.html" title="class in org.apache.arrow.vector.types.pojo">Field</a> field, |
| <a href="../../../../../org/apache/arrow/memory/BufferAllocator.html" title="interface in org.apache.arrow.memory">BufferAllocator</a> allocator, |
| <a href="../../../../../org/apache/arrow/vector/util/CallBack.html" title="interface in org.apache.arrow.vector.util">CallBack</a> callBack)</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../../../../org/apache/arrow/vector/ValueVector.html#getTransferPair-org.apache.arrow.vector.types.pojo.Field-org.apache.arrow.memory.BufferAllocator-org.apache.arrow.vector.util.CallBack-">ValueVector</a></code></span></div> |
| <div class="block">To transfer quota responsibility.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../org/apache/arrow/vector/ValueVector.html#getTransferPair-org.apache.arrow.vector.types.pojo.Field-org.apache.arrow.memory.BufferAllocator-org.apache.arrow.vector.util.CallBack-">getTransferPair</a></code> in interface <code><a href="../../../../../org/apache/arrow/vector/ValueVector.html" title="interface in org.apache.arrow.vector">ValueVector</a></code></dd> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="../../../../../org/apache/arrow/vector/complex/ListVector.html#getTransferPair-org.apache.arrow.vector.types.pojo.Field-org.apache.arrow.memory.BufferAllocator-org.apache.arrow.vector.util.CallBack-">getTransferPair</a></code> in class <code><a href="../../../../../org/apache/arrow/vector/complex/ListVector.html" title="class in org.apache.arrow.vector.complex">ListVector</a></code></dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>field</code> - the Field object used by the target vector</dd> |
| <dd><code>allocator</code> - the target allocator</dd> |
| <dd><code>callBack</code> - A schema change callback.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>a <a href="../../../../../org/apache/arrow/vector/util/TransferPair.html" title="interface in org.apache.arrow.vector.util"><code>transfer pair</code></a>, creating a new target vector of |
| the same type.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="makeTransferPair-org.apache.arrow.vector.ValueVector-"> |
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| </a> |
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| <h4>makeTransferPair</h4> |
| <pre>public <a href="../../../../../org/apache/arrow/vector/util/TransferPair.html" title="interface in org.apache.arrow.vector.util">TransferPair</a> makeTransferPair(<a href="../../../../../org/apache/arrow/vector/ValueVector.html" title="interface in org.apache.arrow.vector">ValueVector</a> target)</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../../../../org/apache/arrow/vector/ValueVector.html#makeTransferPair-org.apache.arrow.vector.ValueVector-">ValueVector</a></code></span></div> |
| <div class="block">Makes a new transfer pair used to transfer underlying buffers.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../org/apache/arrow/vector/ValueVector.html#makeTransferPair-org.apache.arrow.vector.ValueVector-">makeTransferPair</a></code> in interface <code><a href="../../../../../org/apache/arrow/vector/ValueVector.html" title="interface in org.apache.arrow.vector">ValueVector</a></code></dd> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="../../../../../org/apache/arrow/vector/complex/ListVector.html#makeTransferPair-org.apache.arrow.vector.ValueVector-">makeTransferPair</a></code> in class <code><a href="../../../../../org/apache/arrow/vector/complex/ListVector.html" title="class in org.apache.arrow.vector.complex">ListVector</a></code></dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>target</code> - the target for the transfer</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>a new <a href="../../../../../org/apache/arrow/vector/util/TransferPair.html" title="interface in org.apache.arrow.vector.util"><code>transfer pair</code></a> that is used to transfer underlying |
| buffers into the target vector.</dd> |
| </dl> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| </li> |
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