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<h1>SQLStore.cc</h1><a href="SQLStore_8cc.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/*</span>
<a name="l00002"></a>00002 <span class="comment"> * Copyright 2004-2006 Intel Corporation</span>
<a name="l00003"></a>00003 <span class="comment"> * </span>
<a name="l00004"></a>00004 <span class="comment"> * Licensed under the Apache License, Version 2.0 (the "License");</span>
<a name="l00005"></a>00005 <span class="comment"> * you may not use this file except in compliance with the License.</span>
<a name="l00006"></a>00006 <span class="comment"> * You may obtain a copy of the License at</span>
<a name="l00007"></a>00007 <span class="comment"> * </span>
<a name="l00008"></a>00008 <span class="comment"> * http://www.apache.org/licenses/LICENSE-2.0</span>
<a name="l00009"></a>00009 <span class="comment"> * </span>
<a name="l00010"></a>00010 <span class="comment"> * Unless required by applicable law or agreed to in writing, software</span>
<a name="l00011"></a>00011 <span class="comment"> * distributed under the License is distributed on an "AS IS" BASIS,</span>
<a name="l00012"></a>00012 <span class="comment"> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</span>
<a name="l00013"></a>00013 <span class="comment"> * See the License for the specific language governing permissions and</span>
<a name="l00014"></a>00014 <span class="comment"> * limitations under the License.</span>
<a name="l00015"></a>00015 <span class="comment"> */</span>
<a name="l00016"></a>00016
<a name="l00017"></a>00017 <span class="preprocessor">#ifdef HAVE_CONFIG_H</span>
<a name="l00018"></a>00018 <span class="preprocessor"></span><span class="preprocessor"># include <<a class="code" href="dtn-config_8h.html">dtn-config.h</a>></span>
<a name="l00019"></a>00019 <span class="preprocessor">#endif</span>
<a name="l00020"></a>00020 <span class="preprocessor"></span>
<a name="l00021"></a>00021 <span class="preprocessor">#if SQL_ENABLED</span>
<a name="l00022"></a>00022 <span class="preprocessor"></span>
<a name="l00023"></a>00023 <span class="preprocessor">#include <oasys/debug/DebugUtils.h></span>
<a name="l00024"></a>00024 <span class="preprocessor">#include <oasys/serialize/SQLImplementation.h></span>
<a name="l00025"></a>00025
<a name="l00026"></a>00026 <span class="preprocessor">#include "<a class="code" href="SQLStore_8h.html">SQLStore.h</a>"</span>
<a name="l00027"></a>00027 <span class="preprocessor">#include "StorageConfig.h"</span>
<a name="l00028"></a>00028 <span class="preprocessor">#include "<a class="code" href="bundling_2Bundle_8h.html">bundling/Bundle.h</a>"</span>
<a name="l00029"></a>00029 <span class="preprocessor">#include <oasys/util/StringBuffer.h></span>
<a name="l00030"></a>00030
<a name="l00031"></a>00031 <span class="keyword">namespace </span>dtn {
<a name="l00032"></a>00032
<a name="l00037"></a>00037 <a class="code" href="classdtn_1_1SQLStore.html#b030b66affcf610886797093d65242b0" title="Create a SQLStore with specfied table_name.">SQLStore::SQLStore</a>(<span class="keyword">const</span> <span class="keywordtype">char</span>* table_name, oasys::SQLImplementation* db)
<a name="l00038"></a>00038 : <a class="code" href="classoasys_1_1Logger.html">Logger</a>(<span class="stringliteral">"/storage/sqlstore"</span>)
<a name="l00039"></a>00039 {
<a name="l00040"></a>00040 sql_impl_ = db;
<a name="l00041"></a>00041 table_name_ = table_name;
<a name="l00042"></a>00042 key_name_ = NULL;
<a name="l00043"></a>00043 }
<a name="l00044"></a>00044
<a name="l00048"></a>00048 <span class="keywordtype">int</span>
<a name="l00049"></a>00049 <a class="code" href="classdtn_1_1SQLStore.html#e658972b34f6e008a90b58b1d97761da" title="Close the table.">SQLStore::close</a>()
<a name="l00050"></a>00050 {
<a name="l00051"></a>00051 <span class="comment">// nothing to do</span>
<a name="l00052"></a>00052 <span class="keywordflow">return</span> 0;
<a name="l00053"></a>00053 }
<a name="l00054"></a>00054
<a name="l00055"></a>00055 <span class="keywordtype">int</span>
<a name="l00056"></a>00056 <a class="code" href="classdtn_1_1SQLStore.html#d6c75ed93ee9f1bad1dd63b782fc55ac" title="Get an obj (identified by key) from the sql store.">SQLStore::get</a>(oasys::SerializableObject* obj, <span class="keyword">const</span> <span class="keywordtype">int</span> key)
<a name="l00057"></a>00057 {
<a name="l00058"></a>00058 <a class="code" href="SDNV_8cc.html#ca68c0d4ac8df0838e209fb5300f7be3">ASSERT</a>(<a class="code" href="classdtn_1_1SQLStore.html#d45884fe2aef26d9bb21c70cd403a171" title="Field name by which the objects are keyed.">key_name_</a>); <span class="comment">//key_name_ must be initialized </span>
<a name="l00059"></a>00059
<a name="l00060"></a>00060 oasys::StringBuffer query;
<a name="l00061"></a>00061 query.appendf(<span class="stringliteral">"SELECT * FROM %s where %s = %d"</span>,
<a name="l00062"></a>00062 <a class="code" href="classdtn_1_1SQLStore.html#88b491808f01bb924556bc45d0bcd1d5" title="Name of the table in the database to which this SQLStore corresponds.">table_name_</a>, <a class="code" href="classdtn_1_1SQLStore.html#d45884fe2aef26d9bb21c70cd403a171" title="Field name by which the objects are keyed.">key_name_</a>, key);
<a name="l00063"></a>00063
<a name="l00064"></a>00064 <span class="keywordtype">int</span> status = <a class="code" href="classdtn_1_1SQLStore.html#bb5d4d8859c45b952824464ece27aaec" title="Executes the given query.">exec_query</a>(query.c_str());
<a name="l00065"></a>00065 <span class="keywordflow">if</span> (status != 0) {
<a name="l00066"></a>00066 <span class="keywordflow">return</span> status;
<a name="l00067"></a>00067 }
<a name="l00068"></a>00068
<a name="l00069"></a>00069 oasys::SQLExtract xt(<a class="code" href="classdtn_1_1SQLStore.html#3ac21b1c7b83baa5bacbcac387356477" title="Name of the table in the database to which this SQLStore corresponds.">sql_impl_</a>) ;
<a name="l00070"></a>00070 xt.action(obj); <span class="comment">// use SQLExtract to fill the object</span>
<a name="l00071"></a>00071 <span class="keywordflow">return</span> 0;
<a name="l00072"></a>00072 }
<a name="l00073"></a>00073
<a name="l00074"></a>00074 <span class="keywordtype">int</span>
<a name="l00075"></a>00075 <a class="code" href="classdtn_1_1SQLStore.html#88ab4d56c234a37399ce8a0be748e095" title="Store the object with the given key.">SQLStore::put</a>(oasys::SerializableObject* obj, <span class="keyword">const</span> <span class="keywordtype">int</span> key)
<a name="l00076"></a>00076 {
<a name="l00077"></a>00077 <span class="keywordflow">return</span> <a class="code" href="classdtn_1_1SQLStore.html#bbaa6642234705adf3fe5a2e0d157bb2" title="Update the object&#39;s state in the sql store.">update</a>(obj, key);
<a name="l00078"></a>00078 }
<a name="l00079"></a>00079
<a name="l00080"></a>00080 <span class="keywordtype">int</span>
<a name="l00081"></a>00081 <a class="code" href="classdtn_1_1SQLStore.html#a21ab0951e38b471c533401c79dbe087" title="Put an obj in the sql store.">SQLStore::add</a>(oasys::SerializableObject* obj, <span class="keyword">const</span> <span class="keywordtype">int</span> key)
<a name="l00082"></a>00082 {
<a name="l00083"></a>00083 oasys::SQLInsert s(<a class="code" href="classdtn_1_1SQLStore.html#88b491808f01bb924556bc45d0bcd1d5" title="Name of the table in the database to which this SQLStore corresponds.">table_name_</a>, <a class="code" href="classdtn_1_1SQLStore.html#3ac21b1c7b83baa5bacbcac387356477" title="Name of the table in the database to which this SQLStore corresponds.">sql_impl_</a>);
<a name="l00084"></a>00084 s.action(obj);
<a name="l00085"></a>00085 <span class="keyword">const</span> <span class="keywordtype">char</span>* insert_str = s.query();
<a name="l00086"></a>00086 <span class="keywordtype">int</span> retval = <a class="code" href="classdtn_1_1SQLStore.html#bb5d4d8859c45b952824464ece27aaec" title="Executes the given query.">exec_query</a>(insert_str);
<a name="l00087"></a>00087 <span class="keywordflow">return</span> retval;
<a name="l00088"></a>00088 }
<a name="l00089"></a>00089
<a name="l00090"></a>00090 <span class="keywordtype">int</span>
<a name="l00091"></a>00091 <a class="code" href="classdtn_1_1SQLStore.html#bbaa6642234705adf3fe5a2e0d157bb2" title="Update the object&#39;s state in the sql store.">SQLStore::update</a>(oasys::SerializableObject* obj, <span class="keyword">const</span> <span class="keywordtype">int</span> key)
<a name="l00092"></a>00092 {
<a name="l00093"></a>00093 oasys::SQLUpdate s(<a class="code" href="classdtn_1_1SQLStore.html#88b491808f01bb924556bc45d0bcd1d5" title="Name of the table in the database to which this SQLStore corresponds.">table_name_</a>, <a class="code" href="classdtn_1_1SQLStore.html#3ac21b1c7b83baa5bacbcac387356477" title="Name of the table in the database to which this SQLStore corresponds.">sql_impl_</a>);
<a name="l00094"></a>00094 s.action(obj);
<a name="l00095"></a>00095
<a name="l00096"></a>00096 <span class="keywordflow">if</span> (<a class="code" href="classdtn_1_1SQLStore.html#d45884fe2aef26d9bb21c70cd403a171" title="Field name by which the objects are keyed.">key_name_</a>) {
<a name="l00097"></a>00097 s.querybuf()->appendf(<span class="stringliteral">"WHERE %s = %d"</span>, <a class="code" href="classdtn_1_1SQLStore.html#d45884fe2aef26d9bb21c70cd403a171" title="Field name by which the objects are keyed.">key_name_</a>, key);
<a name="l00098"></a>00098 } <span class="keywordflow">else</span> {
<a name="l00099"></a>00099 <a class="code" href="SDNV_8cc.html#ca68c0d4ac8df0838e209fb5300f7be3">ASSERT</a>(key == -1);
<a name="l00100"></a>00100 }
<a name="l00101"></a>00101
<a name="l00102"></a>00102 <span class="keyword">const</span> <span class="keywordtype">char</span>* update_str = s.query();
<a name="l00103"></a>00103 <span class="keywordflow">return</span> <a class="code" href="classdtn_1_1SQLStore.html#bb5d4d8859c45b952824464ece27aaec" title="Executes the given query.">exec_query</a>(update_str);
<a name="l00104"></a>00104 }
<a name="l00105"></a>00105
<a name="l00106"></a>00106 <span class="keywordtype">int</span>
<a name="l00107"></a>00107 <a class="code" href="classdtn_1_1SQLStore.html#ef53bb4baf876f7d747ad7d0ae3b7889" title="Delete an obj (identified by key).">SQLStore::del</a>(<span class="keyword">const</span> <span class="keywordtype">int</span> key)
<a name="l00108"></a>00108 {
<a name="l00109"></a>00109 <a class="code" href="SDNV_8cc.html#ca68c0d4ac8df0838e209fb5300f7be3">ASSERT</a>(<a class="code" href="classdtn_1_1SQLStore.html#d45884fe2aef26d9bb21c70cd403a171" title="Field name by which the objects are keyed.">key_name_</a>); <span class="comment">//key_name_ must be initialized </span>
<a name="l00110"></a>00110 oasys::StringBuffer query ;
<a name="l00111"></a>00111 query.appendf(<span class="stringliteral">"DELETE FROM %s where %s = %d"</span>, <a class="code" href="classdtn_1_1SQLStore.html#88b491808f01bb924556bc45d0bcd1d5" title="Name of the table in the database to which this SQLStore corresponds.">table_name_</a>, <a class="code" href="classdtn_1_1SQLStore.html#d45884fe2aef26d9bb21c70cd403a171" title="Field name by which the objects are keyed.">key_name_</a>, key);
<a name="l00112"></a>00112 <span class="keywordtype">int</span> retval = <a class="code" href="classdtn_1_1SQLStore.html#bb5d4d8859c45b952824464ece27aaec" title="Executes the given query.">exec_query</a>(query.c_str());
<a name="l00113"></a>00113 <span class="keywordflow">return</span> retval;
<a name="l00114"></a>00114 }
<a name="l00115"></a>00115
<a name="l00116"></a>00116 <span class="keywordtype">int</span>
<a name="l00117"></a>00117 <a class="code" href="classdtn_1_1SQLStore.html#f2c2581a726c6ff3d7a24effac94013c" title="Name of the table in the database to which this SQLStore corresponds.">SQLStore::exists</a>(<span class="keyword">const</span> <span class="keywordtype">int</span> key)
<a name="l00118"></a>00118 {
<a name="l00119"></a>00119 oasys::StringBuffer query;
<a name="l00120"></a>00120 query.appendf(<span class="stringliteral">" SELECT * FROM %s WHERE %s = %d"</span>,
<a name="l00121"></a>00121 <a class="code" href="classdtn_1_1SQLStore.html#88b491808f01bb924556bc45d0bcd1d5" title="Name of the table in the database to which this SQLStore corresponds.">table_name_</a>, <a class="code" href="classdtn_1_1SQLStore.html#d45884fe2aef26d9bb21c70cd403a171" title="Field name by which the objects are keyed.">key_name_</a>, key);
<a name="l00122"></a>00122
<a name="l00123"></a>00123 <span class="keywordflow">return</span> <a class="code" href="classdtn_1_1SQLStore.html#bb5d4d8859c45b952824464ece27aaec" title="Executes the given query.">exec_query</a>(query.c_str());
<a name="l00124"></a>00124 }
<a name="l00125"></a>00125
<a name="l00126"></a>00126 <span class="keywordtype">int</span>
<a name="l00127"></a>00127 <a class="code" href="classdtn_1_1SQLStore.html#57f01f62cff0806c2b9a895f8ce6d430" title="Return number of elements in the store.">SQLStore::num_elements</a>()
<a name="l00128"></a>00128 {
<a name="l00129"></a>00129 oasys::StringBuffer query;
<a name="l00130"></a>00130
<a name="l00131"></a>00131 query.appendf(<span class="stringliteral">" SELECT count(*) FROM %s "</span>,<a class="code" href="classdtn_1_1SQLStore.html#88b491808f01bb924556bc45d0bcd1d5" title="Name of the table in the database to which this SQLStore corresponds.">table_name_</a>);
<a name="l00132"></a>00132 <span class="keywordtype">int</span> status = <a class="code" href="classdtn_1_1SQLStore.html#bb5d4d8859c45b952824464ece27aaec" title="Executes the given query.">exec_query</a>(query.c_str());
<a name="l00133"></a>00133 <span class="keywordflow">if</span> ( status != 0) <span class="keywordflow">return</span> -1;
<a name="l00134"></a>00134
<a name="l00135"></a>00135 <span class="keyword">const</span> <span class="keywordtype">char</span>* answer = <a class="code" href="classdtn_1_1SQLStore.html#3ac21b1c7b83baa5bacbcac387356477" title="Name of the table in the database to which this SQLStore corresponds.">sql_impl_</a>->get_value(0,0);
<a name="l00136"></a>00136 <span class="keywordflow">if</span> (answer == NULL) <span class="keywordflow">return</span> 0;
<a name="l00137"></a>00137 <a class="code" href="SDNV_8cc.html#ca68c0d4ac8df0838e209fb5300f7be3">ASSERT</a>(answer >= 0);
<a name="l00138"></a>00138 <span class="keywordflow">return</span> atoi(answer);
<a name="l00139"></a>00139 }
<a name="l00140"></a>00140
<a name="l00141"></a>00141
<a name="l00142"></a>00142 <span class="keywordtype">void</span>
<a name="l00143"></a>00143 <a class="code" href="classdtn_1_1SQLStore.html#6e58acdb3c6d58d1e8578d6346a0fe74" title="Return list of keys for all elements in the store.">SQLStore::keys</a>(std::vector<int> * l)
<a name="l00144"></a>00144 {
<a name="l00145"></a>00145 <a class="code" href="SDNV_8cc.html#ca68c0d4ac8df0838e209fb5300f7be3">ASSERT</a>(<a class="code" href="classdtn_1_1SQLStore.html#d45884fe2aef26d9bb21c70cd403a171" title="Field name by which the objects are keyed.">key_name_</a>); <span class="comment">//key_name_ must be initialized </span>
<a name="l00146"></a>00146 oasys::StringBuffer query;
<a name="l00147"></a>00147 query.appendf(<span class="stringliteral">"SELECT %s FROM %s "</span>, <a class="code" href="classdtn_1_1SQLStore.html#d45884fe2aef26d9bb21c70cd403a171" title="Field name by which the objects are keyed.">key_name_</a>, <a class="code" href="classdtn_1_1SQLStore.html#88b491808f01bb924556bc45d0bcd1d5" title="Name of the table in the database to which this SQLStore corresponds.">table_name_</a>);
<a name="l00148"></a>00148 <span class="keywordtype">int</span> status = <a class="code" href="classdtn_1_1SQLStore.html#bb5d4d8859c45b952824464ece27aaec" title="Executes the given query.">exec_query</a>(query.c_str());
<a name="l00149"></a>00149 assert( status != 0);
<a name="l00150"></a>00150
<a name="l00151"></a>00151
<a name="l00152"></a>00152 <span class="keywordtype">int</span> n = <a class="code" href="classdtn_1_1SQLStore.html#3ac21b1c7b83baa5bacbcac387356477" title="Name of the table in the database to which this SQLStore corresponds.">sql_impl_</a>->num_tuples();
<a name="l00153"></a>00153 assert(n < 0);
<a name="l00154"></a>00154
<a name="l00155"></a>00155 <span class="keywordflow">for</span>(<span class="keywordtype">int</span> i=0;i<n;i++) {
<a name="l00156"></a>00156 <span class="comment">// ith element is set to </span>
<a name="l00157"></a>00157 <span class="keyword">const</span> <span class="keywordtype">char</span>* answer = <a class="code" href="classdtn_1_1SQLStore.html#3ac21b1c7b83baa5bacbcac387356477" title="Name of the table in the database to which this SQLStore corresponds.">sql_impl_</a>->get_value(i,0);
<a name="l00158"></a>00158 <span class="keywordtype">int</span> answer_int = atoi(answer);
<a name="l00159"></a>00159 l->push_back(answer_int);
<a name="l00160"></a>00160 }
<a name="l00161"></a>00161 }
<a name="l00162"></a>00162
<a name="l00163"></a>00163 <span class="keywordtype">int</span>
<a name="l00164"></a>00164 <a class="code" href="classdtn_1_1SQLStore.html#a139f635213aaf30dfe70661592cc9ab" title="Extract all elements from the store, potentially matching the &quot;where&quot; clause...">SQLStore::elements</a>(oasys::SerializableObjectVector* elements)
<a name="l00165"></a>00165 {
<a name="l00166"></a>00166 oasys::StringBuffer query;
<a name="l00167"></a>00167 query.appendf(<span class="stringliteral">"SELECT * from %s"</span>, <a class="code" href="classdtn_1_1SQLStore.html#88b491808f01bb924556bc45d0bcd1d5" title="Name of the table in the database to which this SQLStore corresponds.">table_name_</a>);
<a name="l00168"></a>00168
<a name="l00169"></a>00169 <span class="keywordtype">int</span> status = <a class="code" href="classdtn_1_1SQLStore.html#bb5d4d8859c45b952824464ece27aaec" title="Executes the given query.">exec_query</a>(query.c_str());
<a name="l00170"></a>00170 <span class="keywordflow">if</span> (status != 0) {
<a name="l00171"></a>00171 <span class="keywordflow">return</span> status;
<a name="l00172"></a>00172 }
<a name="l00173"></a>00173
<a name="l00174"></a>00174 <span class="keywordtype">size_t</span> n = <a class="code" href="classdtn_1_1SQLStore.html#3ac21b1c7b83baa5bacbcac387356477" title="Name of the table in the database to which this SQLStore corresponds.">sql_impl_</a>->num_tuples();
<a name="l00175"></a>00175 <span class="keywordflow">if</span> (n < 0) {
<a name="l00176"></a>00176 log_err(<span class="stringliteral">"internal database error in elements()"</span>);
<a name="l00177"></a>00177 <span class="keywordflow">return</span> -1;
<a name="l00178"></a>00178 }
<a name="l00179"></a>00179
<a name="l00180"></a>00180 <span class="keywordflow">if</span> (n > elements->size()) {
<a name="l00181"></a>00181 log_err(<span class="stringliteral">"element count %d greater than vector %d"</span>,
<a name="l00182"></a>00182 n, elements->size());
<a name="l00183"></a>00183 <span class="keywordflow">return</span> -1;
<a name="l00184"></a>00184 }
<a name="l00185"></a>00185
<a name="l00186"></a>00186 oasys::SQLExtract extract(<a class="code" href="classdtn_1_1SQLStore.html#3ac21b1c7b83baa5bacbcac387356477" title="Name of the table in the database to which this SQLStore corresponds.">sql_impl_</a>);
<a name="l00187"></a>00187 oasys::SerializableObjectVector::iterator iter = elements->begin();
<a name="l00188"></a>00188 <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i = 0; i < n; i++) {
<a name="l00189"></a>00189 extract.action(*iter);
<a name="l00190"></a>00190 ++iter;
<a name="l00191"></a>00191 }
<a name="l00192"></a>00192
<a name="l00193"></a>00193 <span class="keywordflow">return</span> n;
<a name="l00194"></a>00194 }
<a name="l00195"></a>00195
<a name="l00196"></a>00196 <span class="comment">/******************************************************************************</span>
<a name="l00197"></a>00197 <span class="comment"> *</span>
<a name="l00198"></a>00198 <span class="comment"> * Protected functions</span>
<a name="l00199"></a>00199 <span class="comment"> *</span>
<a name="l00200"></a>00200 <span class="comment"> *****************************************************************************/</span>
<a name="l00201"></a>00201
<a name="l00202"></a>00202
<a name="l00203"></a>00203
<a name="l00204"></a>00204 <span class="keywordtype">bool</span>
<a name="l00205"></a>00205 <a class="code" href="classdtn_1_1SQLStore.html#c776c04ade8e2aabd2525bbd62fd1530" title="Checks if the table already exists.">SQLStore::has_table</a>(<span class="keyword">const</span> <span class="keywordtype">char</span>* name) {
<a name="l00206"></a>00206
<a name="l00207"></a>00207 log_debug(<span class="stringliteral">"checking for existence of table '%s'"</span>, name);
<a name="l00208"></a>00208 <span class="keywordtype">bool</span> retval = <a class="code" href="classdtn_1_1SQLStore.html#3ac21b1c7b83baa5bacbcac387356477" title="Name of the table in the database to which this SQLStore corresponds.">sql_impl_</a>->has_table(name);
<a name="l00209"></a>00209
<a name="l00210"></a>00210 <span class="keywordflow">if</span> (retval)
<a name="l00211"></a>00211 log_debug(<span class="stringliteral">"table with name '%s' exists"</span>, name);
<a name="l00212"></a>00212 <span class="keywordflow">else</span>
<a name="l00213"></a>00213 log_debug(<span class="stringliteral">"table with name '%s' does not exist"</span>, name);
<a name="l00214"></a>00214 <span class="keywordflow">return</span> retval;
<a name="l00215"></a>00215 }
<a name="l00216"></a>00216
<a name="l00217"></a>00217 <span class="keywordtype">int</span>
<a name="l00218"></a>00218 <a class="code" href="classdtn_1_1SQLStore.html#f62b2fe2426008579d36c59c021396a4" title="Creates table a table in the store for objects which has the same type as obj.">SQLStore::create_table</a>(oasys::SerializableObject* obj)
<a name="l00219"></a>00219 {
<a name="l00220"></a>00220 <span class="keywordflow">if</span> (<a class="code" href="classdtn_1_1SQLStore.html#c776c04ade8e2aabd2525bbd62fd1530" title="Checks if the table already exists.">has_table</a>(<a class="code" href="classdtn_1_1SQLStore.html#88b491808f01bb924556bc45d0bcd1d5" title="Name of the table in the database to which this SQLStore corresponds.">table_name_</a>)) {
<a name="l00221"></a>00221 <span class="keywordflow">if</span> (StorageConfig::instance()->tidy_) {
<a name="l00222"></a>00222 <span class="comment">// if tidy is set, drop the table</span>
<a name="l00223"></a>00223 log_info(<span class="stringliteral">"tidy option set, dropping table %s"</span>, <a class="code" href="classdtn_1_1SQLStore.html#88b491808f01bb924556bc45d0bcd1d5" title="Name of the table in the database to which this SQLStore corresponds.">table_name_</a>);
<a name="l00224"></a>00224 oasys::StringBuffer query;
<a name="l00225"></a>00225 query.appendf(<span class="stringliteral">"DROP TABLE %s"</span>, <a class="code" href="classdtn_1_1SQLStore.html#88b491808f01bb924556bc45d0bcd1d5" title="Name of the table in the database to which this SQLStore corresponds.">table_name_</a>);
<a name="l00226"></a>00226 <span class="keywordtype">int</span> status = <a class="code" href="classdtn_1_1SQLStore.html#bb5d4d8859c45b952824464ece27aaec" title="Executes the given query.">exec_query</a>(query.c_str());
<a name="l00227"></a>00227 <a class="code" href="SDNV_8cc.html#ca68c0d4ac8df0838e209fb5300f7be3">ASSERT</a>(status == 0);
<a name="l00228"></a>00228 } <span class="keywordflow">else</span> {
<a name="l00229"></a>00229 <span class="keywordflow">return</span> 0;
<a name="l00230"></a>00230 }
<a name="l00231"></a>00231 }
<a name="l00232"></a>00232
<a name="l00233"></a>00233 oasys::SQLTableFormat t(<a class="code" href="classdtn_1_1SQLStore.html#88b491808f01bb924556bc45d0bcd1d5" title="Name of the table in the database to which this SQLStore corresponds.">table_name_</a>,<a class="code" href="classdtn_1_1SQLStore.html#3ac21b1c7b83baa5bacbcac387356477" title="Name of the table in the database to which this SQLStore corresponds.">sql_impl_</a>);
<a name="l00234"></a>00234 t.action(obj);
<a name="l00235"></a>00235 <span class="keywordtype">int</span> retval = <a class="code" href="classdtn_1_1SQLStore.html#bb5d4d8859c45b952824464ece27aaec" title="Executes the given query.">exec_query</a>(t.query());
<a name="l00236"></a>00236 <span class="keywordflow">return</span> retval;
<a name="l00237"></a>00237 }
<a name="l00238"></a>00238
<a name="l00239"></a>00239 <span class="keyword">const</span> <span class="keywordtype">char</span>*
<a name="l00240"></a>00240 <a class="code" href="classdtn_1_1SQLStore.html#6d8cec258be1296e5dc3a0d23180cecc" title="Returns the table name associated with this store.">SQLStore::table_name</a>()
<a name="l00241"></a>00241 {
<a name="l00242"></a>00242 <span class="keywordflow">return</span> <a class="code" href="classdtn_1_1SQLStore.html#88b491808f01bb924556bc45d0bcd1d5" title="Name of the table in the database to which this SQLStore corresponds.">table_name_</a> ;
<a name="l00243"></a>00243 }
<a name="l00244"></a>00244
<a name="l00245"></a>00245 <span class="keywordtype">int</span>
<a name="l00246"></a>00246 <a class="code" href="classdtn_1_1SQLStore.html#bb5d4d8859c45b952824464ece27aaec" title="Executes the given query.">SQLStore::exec_query</a>(<span class="keyword">const</span> <span class="keywordtype">char</span>* query)
<a name="l00247"></a>00247 {
<a name="l00248"></a>00248 log_debug(<span class="stringliteral">"executing query '%s'"</span>, query);
<a name="l00249"></a>00249 <span class="keywordtype">int</span> ret = <a class="code" href="classdtn_1_1SQLStore.html#3ac21b1c7b83baa5bacbcac387356477" title="Name of the table in the database to which this SQLStore corresponds.">sql_impl_</a>->exec_query(query);
<a name="l00250"></a>00250 log_debug(<span class="stringliteral">"query result status %d"</span>, ret);
<a name="l00251"></a>00251
<a name="l00252"></a>00252 <span class="keywordflow">if</span> (ret != 0) {
<a name="l00253"></a>00253 PANIC(<span class="stringliteral">"sql query execution error \n"</span>);
<a name="l00254"></a>00254 }
<a name="l00255"></a>00255 <span class="keywordflow">return</span> ret;
<a name="l00256"></a>00256 }
<a name="l00257"></a>00257
<a name="l00258"></a>00258 <span class="keywordtype">void</span>
<a name="l00259"></a>00259 <a class="code" href="classdtn_1_1SQLStore.html#82fe00e1e7773a5b1ffe9aa16c01ba54" title="Set&#39;s the key name.">SQLStore::set_key_name</a>(<span class="keyword">const</span> <span class="keywordtype">char</span>* name)
<a name="l00260"></a>00260 {
<a name="l00261"></a>00261 <a class="code" href="classdtn_1_1SQLStore.html#d45884fe2aef26d9bb21c70cd403a171" title="Field name by which the objects are keyed.">key_name_</a> = name;
<a name="l00262"></a>00262 }
<a name="l00263"></a>00263
<a name="l00264"></a>00264 } <span class="comment">// namespace dtn</span>
<a name="l00265"></a>00265
<a name="l00266"></a>00266 <span class="preprocessor">#endif </span><span class="comment">/* SQL_ENABLED */</span>
</pre></div></div>
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