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<div class="navpath"><a class="el" href="namespacekyotocabinet.html">kyotocabinet</a>::<a class="el" href="classkyotocabinet_1_1PlantDB.html">PlantDB</a>::<a class="el" href="classkyotocabinet_1_1PlantDB_1_1Cursor.html">Cursor</a>
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<h1>kyotocabinet::PlantDB< BASEDB, DBTYPE >::Cursor Class Reference</h1><!-- doxytag: class="kyotocabinet::PlantDB::Cursor" --><!-- doxytag: inherits="kyotocabinet::BasicDB::Cursor" -->
<p><a class="el" href="classkyotocabinet_1_1PlantDB_1_1Cursor.html" title="Cursor to indicate a record.">Cursor</a> to indicate a record.
<a href="#_details">More...</a></p>
<p><code>#include <kcplantdb.h></code></p>
<p><a href="classkyotocabinet_1_1PlantDB_1_1Cursor-members.html">List of all members.</a></p>
<table border="0" cellpadding="0" cellspacing="0">
<tr><td colspan="2"><h2>Public Member Functions</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classkyotocabinet_1_1PlantDB_1_1Cursor.html#a1b12f50e44476139a9cc54ae9c74e4ee">Cursor</a> (<a class="el" href="classkyotocabinet_1_1PlantDB.html">PlantDB</a> *db)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Constructor. <a href="#a1b12f50e44476139a9cc54ae9c74e4ee"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual </td><td class="memItemRight" valign="bottom"><a class="el" href="classkyotocabinet_1_1PlantDB_1_1Cursor.html#a6714f26c323848a3555dff7bada533d6">~Cursor</a> ()</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Destructor. <a href="#a6714f26c323848a3555dff7bada533d6"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classkyotocabinet_1_1PlantDB_1_1Cursor.html#a8141035fcfb80991033d2be00e74059d">accept</a> (<a class="el" href="classkyotocabinet_1_1DB_1_1Visitor.html">Visitor</a> *visitor, bool writable=true, bool step=false)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Accept a visitor to the current record. <a href="#a8141035fcfb80991033d2be00e74059d"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classkyotocabinet_1_1PlantDB_1_1Cursor.html#a170dc516ec00ce604a54d1f463762fc7">jump</a> ()</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Jump the cursor to the first record for forward scan. <a href="#a170dc516ec00ce604a54d1f463762fc7"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classkyotocabinet_1_1PlantDB_1_1Cursor.html#a85ea7ab0eb2ba27300f211b62b2c1d24">jump</a> (const char *kbuf, size_t ksiz)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Jump the cursor to a record for forward scan. <a href="#a85ea7ab0eb2ba27300f211b62b2c1d24"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classkyotocabinet_1_1PlantDB_1_1Cursor.html#a339d2bf45a0db189cbcc275d393edce4">jump</a> (const std::string &key)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Jump the cursor to a record for forward scan. <a href="#a339d2bf45a0db189cbcc275d393edce4"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classkyotocabinet_1_1PlantDB_1_1Cursor.html#a5978f16b3b67db9f96e5915a7814abb8">jump_back</a> ()</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Jump the cursor to the last record for backward scan. <a href="#a5978f16b3b67db9f96e5915a7814abb8"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classkyotocabinet_1_1PlantDB_1_1Cursor.html#a0fad966245dbe96e3fbaf1c5b336d3ca">jump_back</a> (const char *kbuf, size_t ksiz)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Jump the cursor to a record for backward scan. <a href="#a0fad966245dbe96e3fbaf1c5b336d3ca"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classkyotocabinet_1_1PlantDB_1_1Cursor.html#a1e20c9b0b33046839bb4ade297efa3b2">jump_back</a> (const std::string &key)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Jump the cursor to a record for backward scan. <a href="#a1e20c9b0b33046839bb4ade297efa3b2"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classkyotocabinet_1_1PlantDB_1_1Cursor.html#a97e5de36c7013633822978ba4464566f">step</a> ()</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Step the cursor to the next record. <a href="#a97e5de36c7013633822978ba4464566f"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classkyotocabinet_1_1PlantDB_1_1Cursor.html#abaee4c4ed39a012fafa89568ad5b979f">step_back</a> ()</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Step the cursor to the previous record. <a href="#abaee4c4ed39a012fafa89568ad5b979f"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="classkyotocabinet_1_1PlantDB.html">PlantDB</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="classkyotocabinet_1_1PlantDB_1_1Cursor.html#a5b1ae804863c879191b39fc432ac4e91">db</a> ()</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Get the database object. <a href="#a5b1ae804863c879191b39fc432ac4e91"></a><br/></td></tr>
<tr><td colspan="2"><h2>Friends</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="af18dc81278ce30af850281fe89f1b299"></a><!-- doxytag: member="kyotocabinet::PlantDB::Cursor::PlantDB" ref="af18dc81278ce30af850281fe89f1b299" args="" -->
class </td><td class="memItemRight" valign="bottom"><b>PlantDB</b></td></tr>
</table>
<hr/><a name="_details"></a><h2>Detailed Description</h2>
<h3>template<class BASEDB, uint8_t DBTYPE><br/>
class kyotocabinet::PlantDB< BASEDB, DBTYPE >::Cursor</h3>
<p><a class="el" href="classkyotocabinet_1_1PlantDB_1_1Cursor.html" title="Cursor to indicate a record.">Cursor</a> to indicate a record. </p>
<hr/><h2>Constructor & Destructor Documentation</h2>
<a class="anchor" id="a1b12f50e44476139a9cc54ae9c74e4ee"></a><!-- doxytag: member="kyotocabinet::PlantDB::Cursor::Cursor" ref="a1b12f50e44476139a9cc54ae9c74e4ee" args="(PlantDB *db)" -->
<div class="memitem">
<div class="memproto">
<div class="memtemplate">
template<class BASEDB , uint8_t DBTYPE> </div>
<table class="memname">
<tr>
<td class="memname"><a class="el" href="classkyotocabinet_1_1PlantDB.html">kyotocabinet::PlantDB</a>< BASEDB, DBTYPE >::Cursor::Cursor </td>
<td>(</td>
<td class="paramtype"><a class="el" href="classkyotocabinet_1_1PlantDB.html">PlantDB</a> * </td>
<td class="paramname"> <em>db</em></td>
<td> ) </td>
<td><code> [explicit]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Constructor. </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>db</em> </td><td>the container database object. </td></tr>
</table>
</dd>
</dl>
</div>
</div>
<a class="anchor" id="a6714f26c323848a3555dff7bada533d6"></a><!-- doxytag: member="kyotocabinet::PlantDB::Cursor::~Cursor" ref="a6714f26c323848a3555dff7bada533d6" args="()" -->
<div class="memitem">
<div class="memproto">
<div class="memtemplate">
template<class BASEDB , uint8_t DBTYPE> </div>
<table class="memname">
<tr>
<td class="memname">virtual <a class="el" href="classkyotocabinet_1_1PlantDB.html">kyotocabinet::PlantDB</a>< BASEDB, DBTYPE >::Cursor::~Cursor </td>
<td>(</td>
<td class="paramname"></td>
<td> ) </td>
<td><code> [virtual]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Destructor. </p>
<p>Reimplemented from <a class="el" href="classkyotocabinet_1_1BasicDB_1_1Cursor.html#a0e93160f1599c0063b6db4226216cfb3">kyotocabinet::BasicDB::Cursor</a>.</p>
</div>
</div>
<hr/><h2>Member Function Documentation</h2>
<a class="anchor" id="a8141035fcfb80991033d2be00e74059d"></a><!-- doxytag: member="kyotocabinet::PlantDB::Cursor::accept" ref="a8141035fcfb80991033d2be00e74059d" args="(Visitor *visitor, bool writable=true, bool step=false)" -->
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template<class BASEDB , uint8_t DBTYPE> </div>
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<td class="memname">bool <a class="el" href="classkyotocabinet_1_1PlantDB.html">kyotocabinet::PlantDB</a>< BASEDB, DBTYPE >::Cursor::accept </td>
<td>(</td>
<td class="paramtype"><a class="el" href="classkyotocabinet_1_1DB_1_1Visitor.html">Visitor</a> * </td>
<td class="paramname"> <em>visitor</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">bool </td>
<td class="paramname"> <em>writable</em> = <code>true</code>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">bool </td>
<td class="paramname"> <em>step</em> = <code>false</code></td><td> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td><td><code> [virtual]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Accept a visitor to the current record. </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>visitor</em> </td><td>a visitor object. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>writable</em> </td><td>true for writable operation, or false for read-only operation. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>step</em> </td><td>true to move the cursor to the next record, or false for no move. </td></tr>
</table>
</dd>
</dl>
<dl class="return"><dt><b>Returns:</b></dt><dd>true on success, or false on failure. </dd></dl>
<dl class="note"><dt><b>Note:</b></dt><dd>The operation for each record is performed atomically and other threads accessing the same record are blocked. To avoid deadlock, any database operation must not be performed in this function. </dd></dl>
<p>Implements <a class="el" href="classkyotocabinet_1_1DB_1_1Cursor.html#af19b3472aeec03686a074dae416c8ed3">kyotocabinet::DB::Cursor</a>.</p>
</div>
</div>
<a class="anchor" id="a170dc516ec00ce604a54d1f463762fc7"></a><!-- doxytag: member="kyotocabinet::PlantDB::Cursor::jump" ref="a170dc516ec00ce604a54d1f463762fc7" args="()" -->
<div class="memitem">
<div class="memproto">
<div class="memtemplate">
template<class BASEDB , uint8_t DBTYPE> </div>
<table class="memname">
<tr>
<td class="memname">bool <a class="el" href="classkyotocabinet_1_1PlantDB.html">kyotocabinet::PlantDB</a>< BASEDB, DBTYPE >::Cursor::jump </td>
<td>(</td>
<td class="paramname"></td>
<td> ) </td>
<td><code> [virtual]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Jump the cursor to the first record for forward scan. </p>
<dl class="return"><dt><b>Returns:</b></dt><dd>true on success, or false on failure. </dd></dl>
<p>Implements <a class="el" href="classkyotocabinet_1_1DB_1_1Cursor.html#a9b7e9982b948d66a4d2a0295229ac4c1">kyotocabinet::DB::Cursor</a>.</p>
</div>
</div>
<a class="anchor" id="a85ea7ab0eb2ba27300f211b62b2c1d24"></a><!-- doxytag: member="kyotocabinet::PlantDB::Cursor::jump" ref="a85ea7ab0eb2ba27300f211b62b2c1d24" args="(const char *kbuf, size_t ksiz)" -->
<div class="memitem">
<div class="memproto">
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template<class BASEDB , uint8_t DBTYPE> </div>
<table class="memname">
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<td class="memname">bool <a class="el" href="classkyotocabinet_1_1PlantDB.html">kyotocabinet::PlantDB</a>< BASEDB, DBTYPE >::Cursor::jump </td>
<td>(</td>
<td class="paramtype">const char * </td>
<td class="paramname"> <em>kbuf</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">size_t </td>
<td class="paramname"> <em>ksiz</em></td><td> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td><td><code> [virtual]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Jump the cursor to a record for forward scan. </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>kbuf</em> </td><td>the pointer to the key region. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>ksiz</em> </td><td>the size of the key region. </td></tr>
</table>
</dd>
</dl>
<dl class="return"><dt><b>Returns:</b></dt><dd>true on success, or false on failure. </dd></dl>
<p>Implements <a class="el" href="classkyotocabinet_1_1DB_1_1Cursor.html#af5ce800de2275a5e912265fd9afc896d">kyotocabinet::DB::Cursor</a>.</p>
</div>
</div>
<a class="anchor" id="a339d2bf45a0db189cbcc275d393edce4"></a><!-- doxytag: member="kyotocabinet::PlantDB::Cursor::jump" ref="a339d2bf45a0db189cbcc275d393edce4" args="(const std::string &key)" -->
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<div class="memproto">
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template<class BASEDB , uint8_t DBTYPE> </div>
<table class="memname">
<tr>
<td class="memname">bool <a class="el" href="classkyotocabinet_1_1PlantDB.html">kyotocabinet::PlantDB</a>< BASEDB, DBTYPE >::Cursor::jump </td>
<td>(</td>
<td class="paramtype">const std::string & </td>
<td class="paramname"> <em>key</em></td>
<td> ) </td>
<td><code> [virtual]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Jump the cursor to a record for forward scan. </p>
<dl class="note"><dt><b>Note:</b></dt><dd>Equal to the original <a class="el" href="classkyotocabinet_1_1PlantDB_1_1Cursor.html#a170dc516ec00ce604a54d1f463762fc7" title="Jump the cursor to the first record for forward scan.">Cursor::jump</a> method except that the parameter is std::string. </dd></dl>
<p>Implements <a class="el" href="classkyotocabinet_1_1DB_1_1Cursor.html#a3b38a11631f37d104209e5feade154b4">kyotocabinet::DB::Cursor</a>.</p>
</div>
</div>
<a class="anchor" id="a5978f16b3b67db9f96e5915a7814abb8"></a><!-- doxytag: member="kyotocabinet::PlantDB::Cursor::jump_back" ref="a5978f16b3b67db9f96e5915a7814abb8" args="()" -->
<div class="memitem">
<div class="memproto">
<div class="memtemplate">
template<class BASEDB , uint8_t DBTYPE> </div>
<table class="memname">
<tr>
<td class="memname">bool <a class="el" href="classkyotocabinet_1_1PlantDB.html">kyotocabinet::PlantDB</a>< BASEDB, DBTYPE >::Cursor::jump_back </td>
<td>(</td>
<td class="paramname"></td>
<td> ) </td>
<td><code> [virtual]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Jump the cursor to the last record for backward scan. </p>
<dl class="return"><dt><b>Returns:</b></dt><dd>true on success, or false on failure. </dd></dl>
<dl class="note"><dt><b>Note:</b></dt><dd>This method is dedicated to tree databases. Some database types, especially hash databases, may provide a dummy implementation. </dd></dl>
<p>Implements <a class="el" href="classkyotocabinet_1_1DB_1_1Cursor.html#a65452f182db3cd688885c460a761fa9c">kyotocabinet::DB::Cursor</a>.</p>
</div>
</div>
<a class="anchor" id="a0fad966245dbe96e3fbaf1c5b336d3ca"></a><!-- doxytag: member="kyotocabinet::PlantDB::Cursor::jump_back" ref="a0fad966245dbe96e3fbaf1c5b336d3ca" args="(const char *kbuf, size_t ksiz)" -->
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<div class="memproto">
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template<class BASEDB , uint8_t DBTYPE> </div>
<table class="memname">
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<td class="memname">bool <a class="el" href="classkyotocabinet_1_1PlantDB.html">kyotocabinet::PlantDB</a>< BASEDB, DBTYPE >::Cursor::jump_back </td>
<td>(</td>
<td class="paramtype">const char * </td>
<td class="paramname"> <em>kbuf</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">size_t </td>
<td class="paramname"> <em>ksiz</em></td><td> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td><td><code> [virtual]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Jump the cursor to a record for backward scan. </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>kbuf</em> </td><td>the pointer to the key region. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>ksiz</em> </td><td>the size of the key region. </td></tr>
</table>
</dd>
</dl>
<dl class="return"><dt><b>Returns:</b></dt><dd>true on success, or false on failure. </dd></dl>
<p>Implements <a class="el" href="classkyotocabinet_1_1DB_1_1Cursor.html#a4456015ac4c0248aebcabb03e195e860">kyotocabinet::DB::Cursor</a>.</p>
</div>
</div>
<a class="anchor" id="a1e20c9b0b33046839bb4ade297efa3b2"></a><!-- doxytag: member="kyotocabinet::PlantDB::Cursor::jump_back" ref="a1e20c9b0b33046839bb4ade297efa3b2" args="(const std::string &key)" -->
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<div class="memproto">
<div class="memtemplate">
template<class BASEDB , uint8_t DBTYPE> </div>
<table class="memname">
<tr>
<td class="memname">bool <a class="el" href="classkyotocabinet_1_1PlantDB.html">kyotocabinet::PlantDB</a>< BASEDB, DBTYPE >::Cursor::jump_back </td>
<td>(</td>
<td class="paramtype">const std::string & </td>
<td class="paramname"> <em>key</em></td>
<td> ) </td>
<td><code> [virtual]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Jump the cursor to a record for backward scan. </p>
<dl class="note"><dt><b>Note:</b></dt><dd>Equal to the original <a class="el" href="classkyotocabinet_1_1PlantDB_1_1Cursor.html#a5978f16b3b67db9f96e5915a7814abb8" title="Jump the cursor to the last record for backward scan.">Cursor::jump_back</a> method except that the parameter is std::string. </dd></dl>
<p>Implements <a class="el" href="classkyotocabinet_1_1DB_1_1Cursor.html#a9d392717ad801064a36220a91f907c1d">kyotocabinet::DB::Cursor</a>.</p>
</div>
</div>
<a class="anchor" id="a97e5de36c7013633822978ba4464566f"></a><!-- doxytag: member="kyotocabinet::PlantDB::Cursor::step" ref="a97e5de36c7013633822978ba4464566f" args="()" -->
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template<class BASEDB , uint8_t DBTYPE> </div>
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<td class="memname">bool <a class="el" href="classkyotocabinet_1_1PlantDB.html">kyotocabinet::PlantDB</a>< BASEDB, DBTYPE >::Cursor::step </td>
<td>(</td>
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<td> ) </td>
<td><code> [virtual]</code></td>
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<p>Step the cursor to the next record. </p>
<dl class="return"><dt><b>Returns:</b></dt><dd>true on success, or false on failure. </dd></dl>
<p>Implements <a class="el" href="classkyotocabinet_1_1DB_1_1Cursor.html#a312228bd858d3091e32b65f1128faab4">kyotocabinet::DB::Cursor</a>.</p>
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<a class="anchor" id="abaee4c4ed39a012fafa89568ad5b979f"></a><!-- doxytag: member="kyotocabinet::PlantDB::Cursor::step_back" ref="abaee4c4ed39a012fafa89568ad5b979f" args="()" -->
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template<class BASEDB , uint8_t DBTYPE> </div>
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<td class="memname">bool <a class="el" href="classkyotocabinet_1_1PlantDB.html">kyotocabinet::PlantDB</a>< BASEDB, DBTYPE >::Cursor::step_back </td>
<td>(</td>
<td class="paramname"></td>
<td> ) </td>
<td><code> [virtual]</code></td>
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<p>Step the cursor to the previous record. </p>
<dl class="return"><dt><b>Returns:</b></dt><dd>true on success, or false on failure. </dd></dl>
<p>Implements <a class="el" href="classkyotocabinet_1_1DB_1_1Cursor.html#a1eb720a41b9bad81f3dd6621870133d5">kyotocabinet::DB::Cursor</a>.</p>
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<a class="anchor" id="a5b1ae804863c879191b39fc432ac4e91"></a><!-- doxytag: member="kyotocabinet::PlantDB::Cursor::db" ref="a5b1ae804863c879191b39fc432ac4e91" args="()" -->
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template<class BASEDB , uint8_t DBTYPE> </div>
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<td class="memname"><a class="el" href="classkyotocabinet_1_1PlantDB.html">PlantDB</a>* <a class="el" href="classkyotocabinet_1_1PlantDB.html">kyotocabinet::PlantDB</a>< BASEDB, DBTYPE >::Cursor::db </td>
<td>(</td>
<td class="paramname"></td>
<td> ) </td>
<td><code> [virtual]</code></td>
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<p>Get the database object. </p>
<dl class="return"><dt><b>Returns:</b></dt><dd>the database object. </dd></dl>
<p>Implements <a class="el" href="classkyotocabinet_1_1BasicDB_1_1Cursor.html#a79e3904e5b10ed3d356545ed4259160e">kyotocabinet::BasicDB::Cursor</a>.</p>
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