classdbcursor.html

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<p>
Freeze cursor. This method makes it possible to save current state of cursor, close transaction to allow other threads to proceed, and then later restore state of the cursor using unfreeze method and continue  traversal through selected records.     </td>
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<a name="dbCursora2" doxytag="dbCursor::get"></a><p>
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template&lt;class T&gt; </td>
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          <td class="md" nowrap valign="top"> T* dbCursor&lt; T &gt;::get </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="mdname1" valign="top" nowrap>&nbsp;          </td>
          <td class="md" valign="top">)&nbsp;</td>
          <td class="md" nowrap><code> [inline]</code></td>
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<p>
Get pointer to the current record <dl compact><dt><b>Returns: </b></dt><dd>
pointer to the current record or <code>NULL</code> if there is no current record </dl>    </td>
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<a name="dbCursor_3_01dbTimeSeriesBlock_3_01T_01_4_01_4a13" doxytag="dbCursor::getNumberOfRecords"></a><p>
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          <td class="md" nowrap valign="top"> int dbAnyCursor::getNumberOfRecords </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="mdname1" valign="top" nowrap>&nbsp;          </td>
          <td class="md" valign="top">)&nbsp;</td>
          <td class="md" nowrap> const<code> [inline, inherited]</code></td>
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Get number of selected records <dl compact><dt><b>Returns: </b></dt><dd>
number of selected records </dl>    </td>
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<a name="dbCursor_3_01dbTimeSeriesBlock_3_01T_01_4_01_4a45" doxytag="dbCursor::getRecord"></a><p>
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          <td class="md" nowrap valign="top"> void* dbAnyCursor::getRecord </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="mdname1" valign="top" nowrap>&nbsp;          </td>
          <td class="md" valign="top">)&nbsp;</td>
          <td class="md" nowrap><code> [inline, inherited]</code></td>
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<p>
Get pointer to the location where fields of the current record are fetched <dl compact><dt><b>Returns: </b></dt><dd>
pointer to the memory location set by cursor constructor or setRecord method </dl>    </td>
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<a name="dbCursor_3_01dbTimeSeriesBlock_3_01T_01_4_01_4a42" doxytag="dbCursor::getTable"></a><p>
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          <td class="md" nowrap valign="top"> <a class="el" href="classdbTableDescriptor.html">dbTableDescriptor</a>* dbAnyCursor::getTable </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="mdname1" valign="top" nowrap>&nbsp;          </td>
          <td class="md" valign="top">)&nbsp;</td>
          <td class="md" nowrap><code> [inline, inherited]</code></td>
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Get table for which cursor is opened     </td>
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<a name="dbCursor_3_01dbTimeSeriesBlock_3_01T_01_4_01_4a48" doxytag="dbCursor::hasNext"></a><p>
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          <td class="md" nowrap valign="top"> bool dbAnyCursor::hasNext </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="mdname1" valign="top" nowrap>&nbsp;          </td>
          <td class="md" valign="top">)&nbsp;</td>
          <td class="md" nowrap><code> [inherited]</code></td>
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Check if there is more records in the selection     </td>
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<a name="dbCursor_3_01dbTimeSeriesBlock_3_01T_01_4_01_4a15" doxytag="dbCursor::isEmpty"></a><p>
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          <td class="md" nowrap valign="top"> bool dbAnyCursor::isEmpty </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="mdname1" valign="top" nowrap>&nbsp;          </td>
          <td class="md" valign="top">)&nbsp;</td>
          <td class="md" nowrap> const<code> [inline, inherited]</code></td>
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<p>
Checks whether selection is empty <dl compact><dt><b>Returns: </b></dt><dd>
true if there is no current record </dl>    </td>
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<a name="dbCursor_3_01dbTimeSeriesBlock_3_01T_01_4_01_4a37" doxytag="dbCursor::isFirst"></a><p>
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          <td class="md" nowrap valign="top"> bool dbAnyCursor::isFirst </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="mdname1" valign="top" nowrap>&nbsp;          </td>
          <td class="md" valign="top">)&nbsp;</td>
          <td class="md" nowrap><code> [inherited]</code></td>
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Check whether current record is the first one in the selection <dl compact><dt><b>Returns: </b></dt><dd>
true if <a class="el" href="classdbCursor.html#dbCursora4">prev()</a> method will return <code>NULL</code> </dl>    </td>
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<a name="dbCursor_3_01dbTimeSeriesBlock_3_01T_01_4_01_4a46" doxytag="dbCursor::isInSelection"></a><p>
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          <td class="md" nowrap valign="top"> bool dbAnyCursor::isInSelection </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top">oid_t&nbsp;</td>
          <td class="mdname1" valign="top" nowrap>&nbsp; <em>oid</em>          </td>
          <td class="md" valign="top">)&nbsp;</td>
          <td class="md" nowrap><code> [inherited]</code></td>
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Check if record with specified OID is in selection <dl compact><dt><b>Returns: </b></dt><dd>
<code>true</code> if record with such OID was selected </dl>    </td>
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<a name="dbCursora12" doxytag="dbCursor::isInSelection"></a><p>
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template&lt;class T&gt; </td>
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          <td class="md" nowrap valign="top"> bool dbCursor&lt; T &gt;::isInSelection </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top"><a class="el" href="classdbReference.html">dbReference</a>&lt; T &gt; &amp;&nbsp;</td>
          <td class="mdname1" valign="top" nowrap>&nbsp; <em>ref</em>          </td>
          <td class="md" valign="top">)&nbsp;</td>
          <td class="md" nowrap><code> [inline]</code></td>
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Check if record with specified OID is in selection <dl compact><dt><b>Returns: </b></dt><dd>
<code>true</code> if record with such OID was selected </dl>    </td>
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<a name="dbCursor_3_01dbTimeSeriesBlock_3_01T_01_4_01_4a36" doxytag="dbCursor::isLast"></a><p>
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          <td class="md" nowrap valign="top"> bool dbAnyCursor::isLast </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="mdname1" valign="top" nowrap>&nbsp;          </td>
          <td class="md" valign="top">)&nbsp;</td>
          <td class="md" nowrap><code> [inherited]</code></td>
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Check whether current record is the last one in the selection <dl compact><dt><b>Returns: </b></dt><dd>
true if <a class="el" href="classdbCursor.html#dbCursora3">next()</a> method will return <code>NULL</code> </dl>    </td>
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<a name="dbCursor_3_01dbTimeSeriesBlock_3_01T_01_4_01_4a18" doxytag="dbCursor::isLimitReached"></a><p>
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          <td class="md" nowrap valign="top"> bool dbAnyCursor::isLimitReached </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="mdname1" valign="top" nowrap>&nbsp;          </td>
          <td class="md" valign="top">)&nbsp;</td>
          <td class="md" nowrap> const<code> [inline, inherited]</code></td>
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