1/************************************************************** 2 * 3 * Licensed to the Apache Software Foundation (ASF) under one 4 * or more contributor license agreements. See the NOTICE file 5 * distributed with this work for additional information 6 * regarding copyright ownership. The ASF licenses this file 7 * to you under the Apache License, Version 2.0 (the 8 * "License"); you may not use this file except in compliance 9 * with the License. You may obtain a copy of the License at 10 * 11 * http://www.apache.org/licenses/LICENSE-2.0 12 * 13 * Unless required by applicable law or agreed to in writing, 14 * software distributed under the License is distributed on an 15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 16 * KIND, either express or implied. See the License for the 17 * specific language governing permissions and limitations 18 * under the License. 19 * 20 *************************************************************/ 21 22 23 24#ifndef __com_sun_star_sdb_DataAccessDescriptor_idl__ 25#define __com_sun_star_sdb_DataAccessDescriptor_idl__ 26 27#ifndef __com_sun_star_sdbc_Connection_idl__ 28#include <com/sun/star/sdbc/Connection.idl> 29#endif 30 31#ifndef __com_sun_star_sdbc_ResultSet_idl__ 32#include <com/sun/star/sdbc/ResultSet.idl> 33#endif 34 35#ifndef __com_sun_star_beans_XPropertySet_idl__ 36#include <com/sun/star/beans/XPropertySet.idl> 37#endif 38 39#ifndef __com_sun_star_beans_PropertyValue_idl__ 40#include <com/sun/star/beans/PropertyValue.idl> 41#endif 42 43module com { module sun { module star { module sdb { 44 45/** descriptor for accessing basic data access objects. 46 47 <p>Various components interacting with the database access world require to specify (or provide themself) an object 48 such as a query, a table, a result set, a connection to a data source, a column within a table, and so on.<br/> 49 All of these objects are usually not specified with a single property, but with a set of properties, and for 50 various objects, various (but not always different) properties are needed.<br/> 51 The <code>DataAccessDescriptor</code> describes the super set of the properties for the most common 52 data access objects.</p> 53 54 <p>Every component providing or requiring a <type>DataAccessDescriptor</type> for some functionality 55 is urged to specify which properties are mandatory, and which ones optional. Additionally, 56 it's free to specify any additional requirements about the relations of properties.</p> 57 58 @since OpenOffice 1.1.2 59*/ 60published service DataAccessDescriptor 61{ 62 /** specifies the name of the datasource to access. 63 64 <p>This data source is usually used to create a <type>Connection</type>. If no DataSourceName is given 65 and the <member>DatabaseLocation</member> and the <member>ConnectionResource</member> are emtpy, then an <member>ActiveConnection</member> 66 is required.</p> 67 68 @see com::sun::star::sdb::DatabaseContext 69 @see ActiveConnection 70 */ 71 [optional, property] string DataSourceName; 72 73 /** specifies the URL of the database file. 74 75 <p>This database location is usually used to create a <type>Connection</type>. If no DatabaseLocation is given 76 and the <member>ConnectionResource</member> is emtpy, then an <member>ActiveConnection</member> is reuqired.</p> 77 78 @see com::sun::star::sdb::DatabaseContext 79 @see ActiveConnection 80 */ 81 [optional, property] string DatabaseLocation; 82 83 /** specifies the database URL which locates a database driver. 84 85 <p>This database URL is usually used to create a <type>Connection</type>. If no ConnectionResource is given, 86 then an <member>ActiveConnection</member> is reuqired.</p> 87 88 @see com::sun::star::sdb::DatabaseContext 89 @see ActiveConnection 90 */ 91 [optional, property] string ConnectionResource; 92 93 /** specifies additional info to use when creating a connection from a <code>ConnectionResource</code> 94 95 <p>This member is evaluated only when <code>ConnectionResource</code> is used: In this case, 96 <member scope="com::sun::star::sdbc">XDriverManager::getConnectionWithInfo</member> is used 97 to create a connection for the given connection resource, instead of 98 <member scope="com::sun::star::sdbc">XDriverManager::getConnection</member>.</p> 99 100 <p>If the sequence is empty, it is ignored.</p> 101 */ 102 [optional, property] sequence< ::com::sun::star::beans::PropertyValue > ConnectionInfo; 103 104 /** is a connection to use. 105 106 <p>This object is guaranteed to be a <type scope="com::sun::star::sdbc">Connection</type>, but usually 107 it will be a <type>Connection</type> from the module com::sun::star::sdb.<br/> 108 Especially in the case where no <member>DataSourceName</member> is given, but 109 <member>CommandType</member> is <member>CommandType::QUERY</member>, the ActiveConnection needs 110 to fully support the <type>Connection</type> service, to actually retrieve the query specified by 111 <member>Command</member></p> 112 113 <p>If no ActiveConnection is given, then a <member>DataSourceName</member> is required.</p> 114 115 @see DataSourceName 116 */ 117 [optional, property] com::sun::star::sdbc::XConnection ActiveConnection; 118 119 /** specifies the command to execute to retrieve a result set. 120 121 <p>This property is only meaningful together with the <member>CommandType</member> 122 property, thus either <em>both</em> or <em>none</em> of them are present.</p> 123 124 @see CommandType 125 */ 126 [optional, property] string Command; 127 128 129 /** specifies the type of the command to be executed to retrieve a result set. 130 131 <p><member>Command</member> needs to be interpreted depending on the value of this property.</p> 132 133 <p>This property is only meaningful together with the <member>Command</member> 134 property, thus either <em>both</em> or <em>none</em> of them are present.</p> 135 136 @see com::sun::star::sdb::CommandType 137 */ 138 [optional, property] long CommandType; 139 140 /** specifies an additional filter to optionally use. 141 142 <p>The Filter string has to form a <code>WHERE</code>-clause, <em>without</em> the 143 <code>WHERE</code>-string itself.</p> 144 145 <p>If a <member>DataSourceName</member>, <member>Command</member> and <member>CommandType</member> 146 are specified, a <type>RowSet</type> can be created with this information. If the results provided by the 147 row set are to be additionally filtered, the Filter property can be used.</p> 148 149 <p>Note that the Filter property does not make sense if a <member>ResultSet</member> has been specified 150 in the DataAccessDescriptor.</p> 151 152 @see com::sun::star::sdb::RowSet 153 @see ResultSet 154 */ 155 [optional, property] string Filter; 156 157 /** specifies an additional <code>ORDER BY</code> clause which should be applied on top of 158 the given <member>Command</member>. 159 160 <p>The keyword <code>ORDER BY</code> itself is not part of this property.</p> 161 */ 162 [optional, property] string Order; 163 164 /** specifies an additional <code>HAVING</code> clause which should be applied on top of 165 the given <member>Command</member>. 166 167 <p>The keyword <code>HAVING</code> itself is not part of this property.</p> 168 */ 169 [optional, property] string HavingClause; 170 171 /** specifies an additional <code>GROUP BY</code> clause which should be applied on top of 172 the given <member>Command</member>. 173 174 <p>The keyword <code>GROUP BY</code> itself is not part of this property.</p> 175 */ 176 [optional, property] string GroupBy; 177 178 /** specifies if the <member>Command</member> should be analyzed on the client side before sending it 179 to the database server. 180 181 <p>The default value of this property is <TRUE/>. By switching it to <FALSE/>, you can pass 182 backend-specific SQL statements, which are not standard SQL, to your database.</p> 183 184 <p>This property is usually present together with the <member>Command</member> and 185 <member>CommandType</member> properties, and is evaluated if and only if <member>CommandType</member> 186 equals <member>CommandType::COMMAND</member>.</p> 187 */ 188 [optional, property] boolean EscapeProcessing; 189 190 /** specifies an already existent result set to use. 191 192 <p>Usually, you use the properties <member>DataSourceName</member> (alternatively 193 <member>ActiveConnection</member>), <member>Command</member> and <member>CommandType</member> to specify 194 how to <em>obtain</em> a result set. However, in scenarious where the provider of a DataAccessDescriptor 195 has access to an already existent result set, it can pass it along for reusage. This is encouraged 196 to increase performance.</p> 197 198 <p>The object will at least support the <type scope="com::sun::star::sdbc">ResultSet</type> service.</p> 199 200 <p>Note that any superservices of <type scope="com::sun::star::sdbc">ResultSet</type> 201 are also allowed. Especially, this member can denote an instance of the 202 <type scope="com::sun::star::sdb">RowSet</type>, or an instance obtained 203 by calling <member scope="com::sun::star::sdb">XResultSetAccess::createResultSet</member> 204 on such a <type scope="com::sun::star::sdb">RowSet</type>. This becomes important in 205 conjunction with the <member>Selection</member> property.</p> 206 207 @see com::sun::star::sdb::XResultSetAccess 208 */ 209 [optional, property] com::sun::star::sdbc::XResultSet ResultSet; 210 211 /** specifies a selection to confine the records in a result set. 212 213 <p>When you specify a result set either implicitly (<member>DataSourceName</member>, <member>Command</member>, 214 <member>CommandType</member>) or explicitly (<member>ResultSet</member>), the set of results can be 215 additionally refined with this property.</p> 216 217 <p>The single elements of the <member>Selection</member> are either record numbers (see 218 <member scope="com::sun::star::sdbc">XResultSet::getRow</member>), or bookmarks (see 219 <member scope="com::sun::star::sdbcx">XRowLocate::getBookmark</member>).<br/> 220 It is up to the component which provides or requires a DataAccessDescriptor to specify which of the 221 two alternatives it expects. If it does <em>not</em> specify this, then the property 222 <member>BookmarkSelection</member> becomes mandatory.</p> 223 224 <p>If the elements specify bookmarks, and a <member>ResultSet</member> has been specified, then 225 this result set is required to support the <type scope="com::sun::star::sdbcx">XRowLocate</type> interface.</p> 226 */ 227 [optional, property] sequence< any > Selection; 228 229 /** specifies how to interpret <member>Selection</member> 230 231 <p>If present, <member>BookmarkSelection</member> specifies the semantics of <member>Selection</member>. If 232 not present, it's up to the implementing component to specify this semantics.</p> 233 234 <p>If <TRUE/>, then the single elements of the array specified by <member>Selection</member> are 235 bookmarks relative to the result set, if <FALSE/>, they're record numbers.</p> 236 237 @see com::sun::star::sdbcx::XRowLocate 238 @see com::sun::star::sdbc::XResultSet 239 @see com::sun::star::sdb::XResultSetAccess 240 */ 241 [optional, property] boolean BookmarkSelection; 242 243 /** specifies a column name. 244 245 <p>This property is usually used together with the <member>Command</member> and 246 <member>CommandType</member> properties.</p> 247 248 @see Column 249 */ 250 [optional, property] string ColumnName; 251 252 /** specifies a column object 253 254 <p>For reasons of performance and saving resources, a supplier of an DataAccessDescriptor which is 255 used to describe a column object can pass this object directly, instead of specifying it only implicitly 256 with the <member>ColumnName</member> property.</p> 257 258 <p>The object will at least support the <type scope="com::sun::star::sdbcx">Column</type> service, but more 259 often it will even be a <type>Column</type> from the com::sun::star::sdb module.</p> 260 */ 261 [optional, property] com::sun::star::beans::XPropertySet Column; 262}; 263 264}; }; }; }; 265 266#endif 267