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<div class="subTitle">org.apache.calcite.avatica.util</div>
<h2 title="Class AbstractCursor" class="title">Class AbstractCursor</h2>
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<dl>
<dt>Direct Known Subclasses:</dt>
<dd><a href="../../../../../org/apache/calcite/avatica/util/PositionedCursor.html" title="class in org.apache.calcite.avatica.util">PositionedCursor</a></dd>
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<pre>public abstract class <span class="typeNameLabel">AbstractCursor</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>
implements <a href="../../../../../org/apache/calcite/avatica/util/Cursor.html" title="interface in org.apache.calcite.avatica.util">Cursor</a></pre>
<div class="block">Base class for implementing a cursor.
<p>Derived class needs to provide <a href="../../../../../org/apache/calcite/avatica/util/AbstractCursor.Getter.html" title="interface in org.apache.calcite.avatica.util"><code>AbstractCursor.Getter</code></a> and can override
<a href="../../../../../org/apache/calcite/avatica/util/Cursor.Accessor.html" title="interface in org.apache.calcite.avatica.util"><code>Cursor.Accessor</code></a> implementations if it
wishes.</p></div>
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<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Class and Description</th>
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<tr class="altColor">
<td class="colFirst"><code>protected class&nbsp;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/avatica/util/AbstractCursor.AbstractGetter.html" title="class in org.apache.calcite.avatica.util">AbstractCursor.AbstractGetter</a></span></code>
<div class="block">Abstract implementation of <a href="../../../../../org/apache/calcite/avatica/util/AbstractCursor.Getter.html" title="interface in org.apache.calcite.avatica.util"><code>AbstractCursor.Getter</code></a>.</div>
</td>
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<tr class="rowColor">
<td class="colFirst"><code>static class&nbsp;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/avatica/util/AbstractCursor.ArrayAccessor.html" title="class in org.apache.calcite.avatica.util">AbstractCursor.ArrayAccessor</a></span></code>
<div class="block">Accessor that assumes that the underlying value is an ARRAY;
corresponds to <a href="https://docs.oracle.com/javase/8/docs/api/java/sql/Types.html?is-external=true#ARRAY" title="class or interface in java.sql"><code>Types.ARRAY</code></a>.</div>
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<td class="colFirst"><code>protected static interface&nbsp;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/avatica/util/AbstractCursor.Getter.html" title="interface in org.apache.calcite.avatica.util">AbstractCursor.Getter</a></span></code>
<div class="block">Gets a value from a particular field of the current record of this
cursor.</div>
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<tr class="rowColor">
<td class="colFirst"><code>class&nbsp;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/avatica/util/AbstractCursor.SlotGetter.html" title="class in org.apache.calcite.avatica.util">AbstractCursor.SlotGetter</a></span></code>
<div class="block">Implementation of <a href="../../../../../org/apache/calcite/avatica/util/AbstractCursor.Getter.html" title="interface in org.apache.calcite.avatica.util"><code>AbstractCursor.Getter</code></a> that returns the current contents of
a mutable slot.</div>
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<tr class="altColor">
<td class="colFirst"><code>class&nbsp;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/avatica/util/AbstractCursor.StructGetter.html" title="class in org.apache.calcite.avatica.util">AbstractCursor.StructGetter</a></span></code>
<div class="block">Implementation of <a href="../../../../../org/apache/calcite/avatica/util/AbstractCursor.Getter.html" title="interface in org.apache.calcite.avatica.util"><code>AbstractCursor.Getter</code></a> that returns the value of a given field
of the current contents of another getter.</div>
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<h3>Nested classes/interfaces inherited from interface&nbsp;org.apache.calcite.avatica.util.<a href="../../../../../org/apache/calcite/avatica/util/Cursor.html" title="interface in org.apache.calcite.avatica.util">Cursor</a></h3>
<code><a href="../../../../../org/apache/calcite/avatica/util/Cursor.Accessor.html" title="interface in org.apache.calcite.avatica.util">Cursor.Accessor</a></code></li>
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<td class="colFirst"><code>protected boolean[]</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/avatica/util/AbstractCursor.html#wasNull">wasNull</a></span></code>
<div class="block">Slot into which each accessor should write whether the
value returned was null.</div>
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<td class="colFirst"><code>protected </code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/avatica/util/AbstractCursor.html#AbstractCursor--">AbstractCursor</a></span>()</code>&nbsp;</td>
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<td class="colFirst"><code>protected <a href="../../../../../org/apache/calcite/avatica/util/Cursor.Accessor.html" title="interface in org.apache.calcite.avatica.util">Cursor.Accessor</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/avatica/util/AbstractCursor.html#createAccessor-org.apache.calcite.avatica.ColumnMetaData-org.apache.calcite.avatica.util.AbstractCursor.Getter-java.util.Calendar-org.apache.calcite.avatica.util.ArrayImpl.Factory-">createAccessor</a></span>(<a href="../../../../../org/apache/calcite/avatica/ColumnMetaData.html" title="class in org.apache.calcite.avatica">ColumnMetaData</a>&nbsp;columnMetaData,
<a href="../../../../../org/apache/calcite/avatica/util/AbstractCursor.Getter.html" title="interface in org.apache.calcite.avatica.util">AbstractCursor.Getter</a>&nbsp;getter,
<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Calendar.html?is-external=true" title="class or interface in java.util">Calendar</a>&nbsp;localCalendar,
<a href="../../../../../org/apache/calcite/avatica/util/ArrayImpl.Factory.html" title="interface in org.apache.calcite.avatica.util">ArrayImpl.Factory</a>&nbsp;factory)</code>&nbsp;</td>
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<td class="colFirst"><code>protected <a href="../../../../../org/apache/calcite/avatica/util/Cursor.Accessor.html" title="interface in org.apache.calcite.avatica.util">Cursor.Accessor</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/avatica/util/AbstractCursor.html#createAccessor-org.apache.calcite.avatica.ColumnMetaData-int-java.util.Calendar-org.apache.calcite.avatica.util.ArrayImpl.Factory-">createAccessor</a></span>(<a href="../../../../../org/apache/calcite/avatica/ColumnMetaData.html" title="class in org.apache.calcite.avatica">ColumnMetaData</a>&nbsp;columnMetaData,
int&nbsp;ordinal,
<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Calendar.html?is-external=true" title="class or interface in java.util">Calendar</a>&nbsp;localCalendar,
<a href="../../../../../org/apache/calcite/avatica/util/ArrayImpl.Factory.html" title="interface in org.apache.calcite.avatica.util">ArrayImpl.Factory</a>&nbsp;factory)</code>&nbsp;</td>
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<tr id="i2" class="altColor">
<td class="colFirst"><code><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/calcite/avatica/util/Cursor.Accessor.html" title="interface in org.apache.calcite.avatica.util">Cursor.Accessor</a>&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/avatica/util/AbstractCursor.html#createAccessors-java.util.List-java.util.Calendar-org.apache.calcite.avatica.util.ArrayImpl.Factory-">createAccessors</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>&lt;<a href="../../../../../org/apache/calcite/avatica/ColumnMetaData.html" title="class in org.apache.calcite.avatica">ColumnMetaData</a>&gt;&nbsp;types,
<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Calendar.html?is-external=true" title="class or interface in java.util">Calendar</a>&nbsp;localCalendar,
<a href="../../../../../org/apache/calcite/avatica/util/ArrayImpl.Factory.html" title="interface in org.apache.calcite.avatica.util">ArrayImpl.Factory</a>&nbsp;factory)</code>
<div class="block">Creates a list of accessors, one per column.</div>
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<td class="colFirst"><code>protected abstract <a href="../../../../../org/apache/calcite/avatica/util/AbstractCursor.Getter.html" title="interface in org.apache.calcite.avatica.util">AbstractCursor.Getter</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/avatica/util/AbstractCursor.html#createGetter-int-">createGetter</a></span>(int&nbsp;ordinal)</code>&nbsp;</td>
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<td class="colFirst"><code>abstract boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/avatica/util/AbstractCursor.html#next--">next</a></span>()</code>
<div class="block">Moves to the next row.</div>
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<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/avatica/util/AbstractCursor.html#wasNull--">wasNull</a></span>()</code>
<div class="block">Returns whether the last value returned was null.</div>
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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#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>
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<code><a href="../../../../../org/apache/calcite/avatica/util/Cursor.html#close--">close</a></code></li>
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<h4>wasNull</h4>
<pre>protected final&nbsp;boolean[] wasNull</pre>
<div class="block">Slot into which each accessor should write whether the
value returned was null.</div>
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<pre>protected&nbsp;AbstractCursor()</pre>
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<pre>public&nbsp;boolean&nbsp;wasNull()</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../../../org/apache/calcite/avatica/util/Cursor.html#wasNull--">Cursor</a></code></span></div>
<div class="block">Returns whether the last value returned was null.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../org/apache/calcite/avatica/util/Cursor.html#wasNull--">wasNull</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../org/apache/calcite/avatica/util/Cursor.html" title="interface in org.apache.calcite.avatica.util">Cursor</a></code></dd>
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<h4>createAccessors</h4>
<pre>public&nbsp;<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/calcite/avatica/util/Cursor.Accessor.html" title="interface in org.apache.calcite.avatica.util">Cursor.Accessor</a>&gt;&nbsp;createAccessors(<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/calcite/avatica/ColumnMetaData.html" title="class in org.apache.calcite.avatica">ColumnMetaData</a>&gt;&nbsp;types,
<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Calendar.html?is-external=true" title="class or interface in java.util">Calendar</a>&nbsp;localCalendar,
<a href="../../../../../org/apache/calcite/avatica/util/ArrayImpl.Factory.html" title="interface in org.apache.calcite.avatica.util">ArrayImpl.Factory</a>&nbsp;factory)</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../../../org/apache/calcite/avatica/util/Cursor.html#createAccessors-java.util.List-java.util.Calendar-org.apache.calcite.avatica.util.ArrayImpl.Factory-">Cursor</a></code></span></div>
<div class="block">Creates a list of accessors, one per column.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../org/apache/calcite/avatica/util/Cursor.html#createAccessors-java.util.List-java.util.Calendar-org.apache.calcite.avatica.util.ArrayImpl.Factory-">createAccessors</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../org/apache/calcite/avatica/util/Cursor.html" title="interface in org.apache.calcite.avatica.util">Cursor</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>types</code> - List of column types, per <a href="https://docs.oracle.com/javase/8/docs/api/java/sql/Types.html?is-external=true" title="class or interface in java.sql"><code>Types</code></a>.</dd>
<dd><code>localCalendar</code> - Calendar in local time zone</dd>
<dd><code>factory</code> - Factory that creates sub-ResultSets when needed</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>List of column accessors</dd>
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<pre>protected&nbsp;<a href="../../../../../org/apache/calcite/avatica/util/Cursor.Accessor.html" title="interface in org.apache.calcite.avatica.util">Cursor.Accessor</a>&nbsp;createAccessor(<a href="../../../../../org/apache/calcite/avatica/ColumnMetaData.html" title="class in org.apache.calcite.avatica">ColumnMetaData</a>&nbsp;columnMetaData,
int&nbsp;ordinal,
<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Calendar.html?is-external=true" title="class or interface in java.util">Calendar</a>&nbsp;localCalendar,
<a href="../../../../../org/apache/calcite/avatica/util/ArrayImpl.Factory.html" title="interface in org.apache.calcite.avatica.util">ArrayImpl.Factory</a>&nbsp;factory)</pre>
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<pre>protected&nbsp;<a href="../../../../../org/apache/calcite/avatica/util/Cursor.Accessor.html" title="interface in org.apache.calcite.avatica.util">Cursor.Accessor</a>&nbsp;createAccessor(<a href="../../../../../org/apache/calcite/avatica/ColumnMetaData.html" title="class in org.apache.calcite.avatica">ColumnMetaData</a>&nbsp;columnMetaData,
<a href="../../../../../org/apache/calcite/avatica/util/AbstractCursor.Getter.html" title="interface in org.apache.calcite.avatica.util">AbstractCursor.Getter</a>&nbsp;getter,
<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Calendar.html?is-external=true" title="class or interface in java.util">Calendar</a>&nbsp;localCalendar,
<a href="../../../../../org/apache/calcite/avatica/util/ArrayImpl.Factory.html" title="interface in org.apache.calcite.avatica.util">ArrayImpl.Factory</a>&nbsp;factory)</pre>
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<pre>protected abstract&nbsp;<a href="../../../../../org/apache/calcite/avatica/util/AbstractCursor.Getter.html" title="interface in org.apache.calcite.avatica.util">AbstractCursor.Getter</a>&nbsp;createGetter(int&nbsp;ordinal)</pre>
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<h4>next</h4>
<pre>public abstract&nbsp;boolean&nbsp;next()</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../../../org/apache/calcite/avatica/util/Cursor.html#next--">Cursor</a></code></span></div>
<div class="block">Moves to the next row.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../org/apache/calcite/avatica/util/Cursor.html#next--">next</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../org/apache/calcite/avatica/util/Cursor.html" title="interface in org.apache.calcite.avatica.util">Cursor</a></code></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>Whether moved</dd>
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