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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html><head><meta http-equiv="Content-Type" content="text/html;charset=UTF-8"><title>OCILIB (C Driver for Oracle): C:/Users/vincent/Data/Perso/dev/ocilib/ocilib/src/iterator.c Source File</title><link href="doxygen.css" rel="stylesheet" type="text/css"><link href="tabs.css" rel="stylesheet" type="text/css"></head><body><!-- Generated by Doxygen 1.5.4 --><div class="tabs"> <ul> <li><a href="index.html"><span>Main Page</span></a></li> <li><a href="modules.html"><span>Modules</span></a></li> <li><a href="annotated.html"><span>Data Structures</span></a></li> <li class="current"><a href="files.html"><span>Files</span></a></li> </ul></div><h1>C:/Users/vincent/Data/Perso/dev/ocilib/ocilib/src/iterator.c</h1><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/*</span><a name="l00002"></a>00002 <span class="comment"> +----------------------------------------------------------------------+ </span><a name="l00003"></a>00003 <span class="comment"> | |</span><a name="l00004"></a>00004 <span class="comment"> | OCILIB - C Driver for Oracle |</span><a name="l00005"></a>00005 <span class="comment"> | |</span><a name="l00006"></a>00006 <span class="comment"> | (C Wrapper for Oracle OCI) |</span><a name="l00007"></a>00007 <span class="comment"> | |</span><a name="l00008"></a>00008 <span class="comment"> +----------------------------------------------------------------------+</span><a name="l00009"></a>00009 <span class="comment"> | Website : http://ocilib.net |</span><a name="l00010"></a>00010 <span class="comment"> +----------------------------------------------------------------------+</span><a name="l00011"></a>00011 <span class="comment"> | Copyright (c) 2007-2009 Vincent ROGIER |</span><a name="l00012"></a>00012 <span class="comment"> +----------------------------------------------------------------------+</span><a name="l00013"></a>00013 <span class="comment"> | This library is free software; you can redistribute it and/or |</span><a name="l00014"></a>00014 <span class="comment"> | modify it under the terms of the GNU Library General Public |</span><a name="l00015"></a>00015 <span class="comment"> | License as published by the Free Software Foundation; either |</span><a name="l00016"></a>00016 <span class="comment"> | version 2 of the License, or (at your option) any later version. |</span><a name="l00017"></a>00017 <span class="comment"> | |</span><a name="l00018"></a>00018 <span class="comment"> | This library is distributed in the hope that it will be useful, |</span><a name="l00019"></a>00019 <span class="comment"> | but WITHOUT ANY WARRANTY; without even the implied warranty of |</span><a name="l00020"></a>00020 <span class="comment"> | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |</span><a name="l00021"></a>00021 <span class="comment"> | Library General Public License for more details. |</span><a name="l00022"></a>00022 <span class="comment"> | |</span><a name="l00023"></a>00023 <span class="comment"> | You should have received a copy of the GNU Library General Public |</span><a name="l00024"></a>00024 <span class="comment"> | License along with this library; if not, write to the Free |</span><a name="l00025"></a>00025 <span class="comment"> | Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |</span><a name="l00026"></a>00026 <span class="comment"> +----------------------------------------------------------------------+</span><a name="l00027"></a>00027 <span class="comment"> | Author: Vincent ROGIER <vince.rogier@gmail.com> |</span><a name="l00028"></a>00028 <span class="comment"> +----------------------------------------------------------------------+ </span><a name="l00029"></a>00029 <span class="comment">*/</span><a name="l00030"></a>00030 <a name="l00031"></a>00031 <span class="comment">/* ------------------------------------------------------------------------ *</span><a name="l00032"></a>00032 <span class="comment"> * $Id: iterator.c, v 3.2.0 2009/04/20 00:00 Vince $</span><a name="l00033"></a>00033 <span class="comment"> * ------------------------------------------------------------------------ */</span><a name="l00034"></a>00034 <a name="l00035"></a>00035 <span class="preprocessor">#include "ocilib_internal.h"</span><a name="l00036"></a>00036 <a name="l00037"></a>00037 <span class="comment">/* ************************************************************************ *</span><a name="l00038"></a>00038 <span class="comment"> * PUBLIC FUNCTIONS</span><a name="l00039"></a>00039 <span class="comment"> * ************************************************************************ */</span><a name="l00040"></a>00040 <a name="l00041"></a>00041 <span class="comment">/* ------------------------------------------------------------------------ *</span><a name="l00042"></a>00042 <span class="comment"> * OCI_IterCreate</span><a name="l00043"></a>00043 <span class="comment"> * ------------------------------------------------------------------------ */</span><a name="l00044"></a>00044 <a name="l00045"></a><a class="code" href="group__g__collection.html#g22abd2fab4b93cceda5de975574d1b6e">00045</a> <a class="code" href="struct_o_c_i___iter.html" title="Oracle Collection iterator representation.">OCI_Iter</a> * OCI_API <a class="code" href="group__g__collection.html#g22abd2fab4b93cceda5de975574d1b6e" title="Create an iterator handle to iterate through a collection.">OCI_IterCreate</a>(<a class="code" href="struct_o_c_i___coll.html" title="Oracle Collections (VARRAYs and Nested Tables) representation.">OCI_Coll</a> *coll)<a name="l00046"></a>00046 {<a name="l00047"></a>00047 <span class="keywordtype">boolean</span> res = TRUE;<a name="l00048"></a>00048 <a class="code" href="struct_o_c_i___iter.html" title="Oracle Collection iterator representation.">OCI_Iter</a> *iter = NULL;<a name="l00049"></a>00049 <a name="l00050"></a>00050 OCI_CHECK_INITIALIZED(NULL);<a name="l00051"></a>00051 <a name="l00052"></a>00052 OCI_CHECK_PTR(OCI_IPC_COLLECTION, coll, NULL);<a name="l00053"></a>00053 <a name="l00054"></a>00054 <span class="comment">/* allocate iterator structure */</span><a name="l00055"></a>00055 <a name="l00056"></a>00056 iter = (<a class="code" href="struct_o_c_i___iter.html" title="Oracle Collection iterator representation.">OCI_Iter</a> *) OCI_MemAlloc(OCI_IPC_ITERATOR, <span class="keyword">sizeof</span>(*iter), 1, TRUE);<a name="l00057"></a>00057 <a name="l00058"></a>00058 <span class="keywordflow">if</span> (iter != NULL)<a name="l00059"></a>00059 {<a name="l00060"></a>00060 iter-><a class="code" href="struct_o_c_i___iter.html#f6c81d50589d66b6a5e95ff70beb93c2">coll</a> = coll;<a name="l00061"></a>00061 iter-><a class="code" href="struct_o_c_i___iter.html#bfcaf3d84e1548639523824685ef7f27">eoc</a> = FALSE;<a name="l00062"></a>00062 iter-><a class="code" href="struct_o_c_i___iter.html#89461c0e2d15888e573ab1e74934bc57">boc</a> = TRUE;<a name="l00063"></a>00063 <a name="l00064"></a>00064 <span class="comment">/* create iterator */</span><a name="l00065"></a>00065 <a name="l00066"></a>00066 OCI_CALL2<a name="l00067"></a>00067 (<a name="l00068"></a>00068 res, iter-><a class="code" href="struct_o_c_i___iter.html#f6c81d50589d66b6a5e95ff70beb93c2">coll</a>-><a class="code" href="struct_o_c_i___coll.html#7b4f1aa1b566e2e8d4e62844991aeed5">con</a>, <a name="l00069"></a>00069 <a name="l00070"></a>00070 OCIIterCreate(OCILib.env, iter-><a class="code" href="struct_o_c_i___iter.html#f6c81d50589d66b6a5e95ff70beb93c2">coll</a>-><a class="code" href="struct_o_c_i___coll.html#7b4f1aa1b566e2e8d4e62844991aeed5">con</a>-><a class="code" href="struct_o_c_i___connection.html#573a359867139990b1b0f50aa7a86175">err</a>, coll-><a class="code" href="struct_o_c_i___coll.html#cd0eeebc9c44bcabe4a2ef626d94bef1">handle</a>, <a name="l00071"></a>00071 &iter-><a class="code" href="struct_o_c_i___iter.html#22fb6544c36218f1b1cb698445defa9d">handle</a>)<a name="l00072"></a>00072 )<a name="l00073"></a>00073 <a name="l00074"></a>00074 <span class="comment">/* create data element accessor */</span><a name="l00075"></a>00075 <a name="l00076"></a>00076 <span class="keywordflow">if</span> (res == TRUE)<a name="l00077"></a>00077 iter-><a class="code" href="struct_o_c_i___iter.html#5520a088f17c80cc06011dfc2d2316b9">elem</a> = OCI_ElemInit(coll-><a class="code" href="struct_o_c_i___coll.html#7b4f1aa1b566e2e8d4e62844991aeed5">con</a>, &iter-><a class="code" href="struct_o_c_i___iter.html#5520a088f17c80cc06011dfc2d2316b9">elem</a>, NULL, <a name="l00078"></a>00078 (OCIInd *) NULL, coll-><a class="code" href="struct_o_c_i___coll.html#868c64c81b8bf3ca88c7ca8a6e57af03">typinf</a>);<a name="l00079"></a>00079 <a name="l00080"></a>00080 <span class="keywordflow">if</span> (res == TRUE)<a name="l00081"></a>00081 res = (iter-><a class="code" href="struct_o_c_i___iter.html#5520a088f17c80cc06011dfc2d2316b9">elem</a> != NULL);<a name="l00082"></a>00082 }<a name="l00083"></a>00083 <span class="keywordflow">else</span><a name="l00084"></a>00084 res = FALSE;<a name="l00085"></a>00085 <a name="l00086"></a>00086 <span class="comment">/* check for success */</span><a name="l00087"></a>00087 <a name="l00088"></a>00088 <span class="keywordflow">if</span> (res == FALSE)<a name="l00089"></a>00089 {<a name="l00090"></a>00090 <a class="code" href="group__g__collection.html#g9b186234fa7bfd143e2fecb126c7a8a4" title="Free an iterator handle.">OCI_IterFree</a>(iter);<a name="l00091"></a>00091 iter = NULL;<a name="l00092"></a>00092 }<a name="l00093"></a>00093 <a name="l00094"></a>00094 OCI_RESULT(res);<a name="l00095"></a>00095 <a name="l00096"></a>00096 <span class="keywordflow">return</span> iter;⌨️ 快捷键说明
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