该问题，我百度了下，根本没发现什么有价值的文章；还是看源代码（详见最后附录）中的注释，最有效了！
insert，返回值是：新插入行的主键（primary key）；需要包含<selectKey>语句，才会返回主键，否则返回值为null。
update/delete，返回值是：更新或删除的行数；无需指明resultClass；但如果有约束异常而删除失败，只能去捕捉异常。
queryForObject，返回的是：一个实例对象或null；需要包含<select>语句，并且指明resultMap；
queryForList，返回的是：实例对象的列表；需要包含<select>语句，并且指明resultMap；

我的配置文件如下（desktop_common_sqlMap.xml）：

  1. <typeAlias alias="UnlockTagInfo" type="com.desktop.common.bean.UnlockTagInfo" />
  2. <resultMap class="UnlockTagInfo" id="UnlockTagInfoResult">
  3. <result column="id" property="id" jdbcType="INTEGER" />
  4. <result column="name" property="name" jdbcType="VARCHAR" />
  5. <result column="description" property="description" jdbcType="VARCHAR" />
  6. <result column="priority" property="priority" jdbcType="INTEGER" />
  7. </resultMap>
  8. <insert id="insertUnlockTagInfo" parameterClass="map">
  9. <selectKey resultClass="int" keyProperty="id">
  10. select
  11. nextval('desktop_unlock_tag_id_seq') as id
  12. </selectKey>
  13. insert into
  14. desktop_unlock_tag(id,name,description,priority)
  15. values(#id:INTEGER#,#name:VARCHAR#,#description:VARCHAR#,#priority:INTEGER#)
  16. </insert>
  17. <update id="updateUnlockTagInfo" parameterClass="map">
  18. update
  19. desktop_unlock_tag
  20. set modify_time=now(),priority=#priority:INTEGER#,
  21. name=#name:VARCHAR#,description=#description:VARCHAR#
  22. where
  23. id=#id:INTEGER#
  24. </update>
  25. <delete id="deleteUnlockTagInfo" parameterClass="int">
  26. delete from
  27. desktop_unlock_tag
  28. where id=#value:INTEGER#
  29. </delete>
  30. <select id="countUnlockTagInfo" resultClass="int">
  31. select count(*)
  32. from
  33. desktop_unlock_tag
  34. </select>
  35. <sql id="selectUnlockTagInfo">
  36. select
  37. id,name,description,priority
  38. from
  39. desktop_unlock_tag
  40. </sql>
  41. <select id="findUnlockTagInfoById" parameterClass="int"
  42. resultMap="UnlockTagInfoResult">
  43. <include refid="selectUnlockTagInfo" />
  44. where id=#id:INTEGER#
  45. </select>
  46. <select id="listUnlockTagInfo" parameterClass="map"
  47. resultMap="UnlockTagInfoResult">
  48. <include refid="selectUnlockTagInfo" />
  49. order by
  50. modify_time desc limit #size:INTEGER#
  51. offset #start:INTEGER#
  52. </select>
	<typeAlias alias="UnlockTagInfo" type="com.desktop.common.bean.UnlockTagInfo" />

	<resultMap class="UnlockTagInfo" id="UnlockTagInfoResult">

		<result column="id" property="id" jdbcType="INTEGER" />

		<result column="name" property="name" jdbcType="VARCHAR" />

		<result column="description" property="description" jdbcType="VARCHAR" />

		<result column="priority" property="priority" jdbcType="INTEGER" />

	</resultMap>

	<insert id="insertUnlockTagInfo" parameterClass="map">

		<selectKey resultClass="int" keyProperty="id">

			select

			nextval('desktop_unlock_tag_id_seq') as id

		</selectKey>

		insert into

		desktop_unlock_tag(id,name,description,priority)

		values(#id:INTEGER#,#name:VARCHAR#,#description:VARCHAR#,#priority:INTEGER#)

	</insert>

	<update id="updateUnlockTagInfo" parameterClass="map">

		update

		desktop_unlock_tag

		set modify_time=now(),priority=#priority:INTEGER#,

		name=#name:VARCHAR#,description=#description:VARCHAR#

		where

		id=#id:INTEGER#

	</update>

	<delete id="deleteUnlockTagInfo" parameterClass="int">

		delete from

		desktop_unlock_tag

		where id=#value:INTEGER#

	</delete>

	<select id="countUnlockTagInfo" resultClass="int">

		select count(*)

		from

		desktop_unlock_tag

	</select>

	<sql id="selectUnlockTagInfo">

		select

		id,name,description,priority

		from

		desktop_unlock_tag

	</sql>

	<select id="findUnlockTagInfoById" parameterClass="int"

		resultMap="UnlockTagInfoResult">

		<include refid="selectUnlockTagInfo" />

		where id=#id:INTEGER#

	</select>

	<select id="listUnlockTagInfo" parameterClass="map"

		resultMap="UnlockTagInfoResult">

		<include refid="selectUnlockTagInfo" />

		order by

		modify_time desc limit #size:INTEGER#

		offset #start:INTEGER#

	</select>

我的DAO源码如下：

  1. public class UnlockTagDaoImpl extends SqlMapClientDaoSupport implements
  2. UnlockTagDao {
  3. @Override
  4. public Integer addItem(String name, String desc, Integer priority) {
  5. SqlMapClientTemplate template = this.getSqlMapClientTemplate();
  6. Map<String, Object> args = new HashMap<String, Object>();
  7. args.put("name", name);
  8. args.put("description", desc);
  9. args.put("priority", priority);
  10. Object key = template.insert("DesktopCommon.insertUnlockTagInfo", args);
  11. return (Integer) key;
  12. }
  13. @Override
  14. public boolean updateItem(Integer id, String name, String description,
  15. Integer priority) {
  16. SqlMapClientTemplate template = this.getSqlMapClientTemplate();
  17. Map<String, Object> args = new HashMap<String, Object>();
  18. args.put("id", id);
  19. args.put("name", name);
  20. args.put("description", description);
  21. args.put("priority", priority);
  22. try {
  23. int c = template.update("DesktopCommon.updateUnlockTagInfo", args);
  24. if (c > 0) {
  25. return true;
  26. }
  27. return false;
  28. } catch (Exception e) {
  29. return false;
  30. }
  31. }
  32. @Override
  33. public boolean deleteItem(Integer id) {
  34. SqlMapClientTemplate template = this.getSqlMapClientTemplate();
  35. try {
  36. int c = template.delete("DesktopCommon.deleteUnlockTagInfo", id);
  37. if (c > 0) {
  38. return true;
  39. }
  40. return false;
  41. } catch (Exception e) {
  42. return false;
  43. }
  44. }
  45. @Override
  46. public UnlockTagInfo findItemById(Integer id) {
  47. SqlMapClientTemplate template = this.getSqlMapClientTemplate();
  48. UnlockTagInfo item = (UnlockTagInfo) template.queryForObject(
  49. "DesktopCommon.findUnlockTagInfoById", id);
  50. return item;
  51. }
  52. @Override
  53. public PagedList<UnlockTagInfo> listAll(Integer nStart, Integer nSize,
  54. boolean bCountTotal) {
  55. SqlMapClientTemplate template = this.getSqlMapClientTemplate();
  56. PagedList<UnlockTagInfo> result = new PagedList<UnlockTagInfo>();
  57. if (bCountTotal) {
  58. int total = (Integer) template
  59. .queryForObject("DesktopCommon.countUnlockTagInfo");
  60. result.setTotal(total);
  61. }
  62. Map<String, Integer> args = new HashMap<String, Integer>();
  63. args.put("start", nStart);
  64. args.put("size", nSize);
  65. @SuppressWarnings("unchecked")
  66. List<UnlockTagInfo> items = template.queryForList(
  67. "DesktopCommon.listUnlockTagInfo", args);
  68. result.setData(items);
  69. return result;
  70. }
  71. }
public class UnlockTagDaoImpl extends SqlMapClientDaoSupport implements

		UnlockTagDao {

	@Override

	public Integer addItem(String name, String desc, Integer priority) {

		SqlMapClientTemplate template = this.getSqlMapClientTemplate();

		Map<String, Object> args = new HashMap<String, Object>();

		args.put("name", name);

		args.put("description", desc);

		args.put("priority", priority);

		Object key = template.insert("DesktopCommon.insertUnlockTagInfo", args);

		return (Integer) key;

	}

@Override

public boolean updateItem(Integer id, String name, String description,

		Integer priority) {

	SqlMapClientTemplate template = this.getSqlMapClientTemplate();

	Map&lt;String, Object&gt; args = new HashMap&lt;String, Object&gt;();

	args.put("id", id);

	args.put("name", name);

	args.put("description", description);

	args.put("priority", priority);

	try {

		int c = template.update("DesktopCommon.updateUnlockTagInfo", args);

		if (c &gt; 0) {

			return true;

		}

		return false;

	} catch (Exception e) {

		return false;

	}

}

@Override

public boolean deleteItem(Integer id) {

	SqlMapClientTemplate template = this.getSqlMapClientTemplate();

	try {

		int c = template.delete("DesktopCommon.deleteUnlockTagInfo", id);

		if (c &gt; 0) {

			return true;

		}

		return false;

	} catch (Exception e) {

		return false;

	}

}

@Override

public UnlockTagInfo findItemById(Integer id) {

	SqlMapClientTemplate template = this.getSqlMapClientTemplate();

	UnlockTagInfo item = (UnlockTagInfo) template.queryForObject(

			"DesktopCommon.findUnlockTagInfoById", id);

	return item;

}

@Override

public PagedList&lt;UnlockTagInfo&gt; listAll(Integer nStart, Integer nSize,

		boolean bCountTotal) {

	SqlMapClientTemplate template = this.getSqlMapClientTemplate();

	PagedList&lt;UnlockTagInfo&gt; result = new PagedList&lt;UnlockTagInfo&gt;();

	if (bCountTotal) {

		int total = (Integer) template

				.queryForObject("DesktopCommon.countUnlockTagInfo");

		result.setTotal(total);

	}

	Map&lt;String, Integer&gt; args = new HashMap&lt;String, Integer&gt;();

	args.put("start", nStart);

	args.put("size", nSize);

	@SuppressWarnings("unchecked")

	List&lt;UnlockTagInfo&gt; items = template.queryForList(

			"DesktopCommon.listUnlockTagInfo", args);

	result.setData(items);

	return result;

}




}

关于ibatis的接口，参见其源码（com\ibatis\sqlmap\client\SqlMapExecutor.java）:

  1. /*
  2. *  Copyright 2004 Clinton Begin
  3. *
  4. *  Licensed under the Apache License, Version 2.0 (the "License");
  5. *  you may not use this file except in compliance with the License.
  6. *  You may obtain a copy of the License at
  7. *
  8. *      http://www.apache.org/licenses/LICENSE-2.0
  9. *
  10. *  Unless required by applicable law or agreed to in writing, software
  11. *  distributed under the License is distributed on an "AS IS" BASIS,
  12. *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13. *  See the License for the specific language governing permissions and
  14. *  limitations under the License.
  15. */
  16. package com.ibatis.sqlmap.client;
  17. import com.ibatis.common.util.PaginatedList;
  18. import com.ibatis.sqlmap.client.event.RowHandler;
  19. import com.ibatis.sqlmap.engine.execution.BatchException;
  20. import java.sql.SQLException;
  21. import java.util.List;
  22. import java.util.Map;
  23. /**
  24. * This interface declares all methods involved with executing statements
  25. * and batches for an SQL Map.
  26. *
  27. * @see SqlMapSession
  28. * @see SqlMapClient
  29. */
  30. public interface SqlMapExecutor {
  31. /**
  32. * Executes a mapped SQL INSERT statement.
  33. * Insert is a bit different from other update methods, as it
  34. * provides facilities for returning the primary key of the
  35. * newly inserted row (rather than the effected rows).  This
  36. * functionality is of course optional.
  37. * <p/>
  38. * The parameter object is generally used to supply the input
  39. * data for the INSERT values.
  40. *
  41. * @param id              The name of the statement to execute.
  42. * @param parameterObject The parameter object (e.g. JavaBean, Map, XML etc.).
  43. * @return The primary key of the newly inserted row.  This might be automatically
  44. *         generated by the RDBMS, or selected from a sequence table or other source.
  45. * @throws java.sql.SQLException If an error occurs.
  46. */
  47. Object insert(String id, Object parameterObject) throws SQLException;
  48. /**
  49. * Executes a mapped SQL INSERT statement.
  50. * Insert is a bit different from other update methods, as it
  51. * provides facilities for returning the primary key of the
  52. * newly inserted row (rather than the effected rows).  This
  53. * functionality is of course optional.
  54. * <p/>
  55. * This overload assumes no parameter is needed.
  56. *
  57. * @param id              The name of the statement to execute.
  58. * @return The primary key of the newly inserted row.  This might be automatically
  59. *         generated by the RDBMS, or selected from a sequence table or other source.
  60. * @throws java.sql.SQLException If an error occurs.
  61. */
  62. Object insert(String id) throws SQLException;
  63. /**
  64. * Executes a mapped SQL UPDATE statement.
  65. * Update can also be used for any other update statement type,
  66. * such as inserts and deletes.  Update returns the number of
  67. * rows effected.
  68. * <p/>
  69. * The parameter object is generally used to supply the input
  70. * data for the UPDATE values as well as the WHERE clause parameter(s).
  71. *
  72. * @param id              The name of the statement to execute.
  73. * @param parameterObject The parameter object (e.g. JavaBean, Map, XML etc.).
  74. * @return The number of rows effected.
  75. * @throws java.sql.SQLException If an error occurs.
  76. */
  77. int update(String id, Object parameterObject) throws SQLException;
  78. /**
  79. * Executes a mapped SQL UPDATE statement.
  80. * Update can also be used for any other update statement type,
  81. * such as inserts and deletes.  Update returns the number of
  82. * rows effected.
  83. * <p/>
  84. * This overload assumes no parameter is needed.
  85. *
  86. * @param id              The name of the statement to execute.
  87. * @return The number of rows effected.
  88. * @throws java.sql.SQLException If an error occurs.
  89. */
  90. int update(String id) throws SQLException;
  91. /**
  92. * Executes a mapped SQL DELETE statement.
  93. * Delete returns the number of rows effected.
  94. * <p/>
  95. * The parameter object is generally used to supply the input
  96. * data for the WHERE clause parameter(s) of the DELETE statement.
  97. *
  98. * @param id              The name of the statement to execute.
  99. * @param parameterObject The parameter object (e.g. JavaBean, Map, XML etc.).
  100. * @return The number of rows effected.
  101. * @throws java.sql.SQLException If an error occurs.
  102. */
  103. int delete(String id, Object parameterObject) throws SQLException;
  104. /**
  105. * Executes a mapped SQL DELETE statement.
  106. * Delete returns the number of rows effected.
  107. * <p/>
  108. * This overload assumes no parameter is needed.
  109. *
  110. * @param id              The name of the statement to execute.
  111. * @return The number of rows effected.
  112. * @throws java.sql.SQLException If an error occurs.
  113. */
  114. int delete(String id) throws SQLException;
  115. /**
  116. * Executes a mapped SQL SELECT statement that returns data to populate
  117. * a single object instance.
  118. * <p/>
  119. * The parameter object is generally used to supply the input
  120. * data for the WHERE clause parameter(s) of the SELECT statement.
  121. *
  122. * @param id              The name of the statement to execute.
  123. * @param parameterObject The parameter object (e.g. JavaBean, Map, XML etc.).
  124. * @return The single result object populated with the result set data,
  125. *         or null if no result was found
  126. * @throws java.sql.SQLException If more than one result was found, or if any other error occurs.
  127. */
  128. Object queryForObject(String id, Object parameterObject) throws SQLException;
  129. /**
  130. * Executes a mapped SQL SELECT statement that returns data to populate
  131. * a single object instance.
  132. * <p/>
  133. * This overload assumes no parameter is needed.
  134. *
  135. * @param id              The name of the statement to execute.
  136. * @return The single result object populated with the result set data,
  137. *         or null if no result was found
  138. * @throws java.sql.SQLException If more than one result was found, or if any other error occurs.
  139. */
  140. Object queryForObject(String id) throws SQLException;
  141. /**
  142. * Executes a mapped SQL SELECT statement that returns data to populate
  143. * the supplied result object.
  144. * <p/>
  145. * The parameter object is generally used to supply the input
  146. * data for the WHERE clause parameter(s) of the SELECT statement.
  147. *
  148. * @param id              The name of the statement to execute.
  149. * @param parameterObject The parameter object (e.g. JavaBean, Map, XML etc.).
  150. * @param resultObject    The result object instance that should be populated with result data.
  151. * @return The single result object as supplied by the resultObject parameter, populated with the result set data,
  152. *         or null if no result was found
  153. * @throws java.sql.SQLException If more than one result was found, or if any other error occurs.
  154. */
  155. Object queryForObject(String id, Object parameterObject, Object resultObject) throws SQLException;
  156. /**
  157. * Executes a mapped SQL SELECT statement that returns data to populate
  158. * a number of result objects.
  159. * <p/>
  160. * The parameter object is generally used to supply the input
  161. * data for the WHERE clause parameter(s) of the SELECT statement.
  162. *
  163. * @param id              The name of the statement to execute.
  164. * @param parameterObject The parameter object (e.g. JavaBean, Map, XML etc.).
  165. * @return A List of result objects.
  166. * @throws java.sql.SQLException If an error occurs.
  167. */
  168. List queryForList(String id, Object parameterObject) throws SQLException;
  169. /**
  170. * Executes a mapped SQL SELECT statement that returns data to populate
  171. * a number of result objects.
  172. * <p/>
  173. * This overload assumes no parameter is needed.
  174. *
  175. * @param id              The name of the statement to execute.
  176. * @return A List of result objects.
  177. * @throws java.sql.SQLException If an error occurs.
  178. */
  179. List queryForList(String id) throws SQLException;
  180. /**
  181. * Executes a mapped SQL SELECT statement that returns data to populate
  182. * a number of result objects within a certain range.
  183. * <p/>
  184. * The parameter object is generally used to supply the input
  185. * data for the WHERE clause parameter(s) of the SELECT statement.
  186. *
  187. * @param id              The name of the statement to execute.
  188. * @param parameterObject The parameter object (e.g. JavaBean, Map, XML etc.).
  189. * @param skip            The number of results to ignore.
  190. * @param max             The maximum number of results to return.
  191. * @return A List of result objects.
  192. * @throws java.sql.SQLException If an error occurs.
  193. */
  194. List queryForList(String id, Object parameterObject, int skip, int max) throws SQLException;
  195. /**
  196. * Executes a mapped SQL SELECT statement that returns data to populate
  197. * a number of result objects within a certain range.
  198. * <p/>
  199. * This overload assumes no parameter is needed.
  200. *
  201. * @param id              The name of the statement to execute.
  202. * @param skip            The number of results to ignore.
  203. * @param max             The maximum number of results to return.
  204. * @return A List of result objects.
  205. * @throws java.sql.SQLException If an error occurs.
  206. */
  207. List queryForList(String id, int skip, int max) throws SQLException;
  208. /**
  209. * Executes a mapped SQL SELECT statement that returns a number of
  210. * result objects that will be handled one at a time by a
  211. * RowHandler.
  212. * <p/>
  213. * This is generally a good approach to take when dealing with large sets
  214. * of records (i.e. hundreds, thousands...) that need to be processed without
  215. * eating up all of the system resources.
  216. * <p/>
  217. * The parameter object is generally used to supply the input
  218. * data for the WHERE clause parameter(s) of the SELECT statement.
  219. *
  220. * @param id              The name of the statement to execute.
  221. * @param parameterObject The parameter object (e.g. JavaBean, Map, XML etc.).
  222. * @param rowHandler      A RowHandler instance
  223. * @throws java.sql.SQLException If an error occurs.
  224. */
  225. void queryWithRowHandler(String id, Object parameterObject, RowHandler rowHandler) throws SQLException;
  226. /**
  227. * Executes a mapped SQL SELECT statement that returns a number of
  228. * result objects that will be handled one at a time by a
  229. * RowHandler.
  230. * <p/>
  231. * This is generally a good approach to take when dealing with large sets
  232. * of records (i.e. hundreds, thousands...) that need to be processed without
  233. * eating up all of the system resources.
  234. * <p/>
  235. * This overload assumes no parameter is needed.
  236. *
  237. * @param id              The name of the statement to execute.
  238. * @param rowHandler      A RowHandler instance
  239. * @throws java.sql.SQLException If an error occurs.
  240. */
  241. void queryWithRowHandler(String id, RowHandler rowHandler) throws SQLException;
  242. /**
  243. * Executes a mapped SQL SELECT statement that returns data to populate
  244. * a number of result objects a page at a time.
  245. * <p/>
  246. * The parameter object is generally used to supply the input
  247. * data for the WHERE clause parameter(s) of the SELECT statement.
  248. *
  249. * @param id              The name of the statement to execute.
  250. * @param parameterObject The parameter object (e.g. JavaBean, Map, XML etc.).
  251. * @param pageSize        The maximum number of result objects each page can hold.
  252. * @return A PaginatedList of result objects.
  253. * @throws java.sql.SQLException If an error occurs.
  254. * @deprecated All paginated list features have been deprecated
  255. */
  256. PaginatedList queryForPaginatedList(String id, Object parameterObject, int pageSize) throws SQLException;
  257. /**
  258. * Executes a mapped SQL SELECT statement that returns data to populate
  259. * a number of result objects a page at a time.
  260. * <p/>
  261. * This overload assumes no parameter is needed.
  262. *
  263. * @param id              The name of the statement to execute.
  264. * @param pageSize        The maximum number of result objects each page can hold.
  265. * @return A PaginatedList of result objects.
  266. * @throws java.sql.SQLException If an error occurs.
  267. * @deprecated All paginated list features have been deprecated
  268. */
  269. PaginatedList queryForPaginatedList(String id, int pageSize) throws SQLException;
  270. /**
  271. * Executes a mapped SQL SELECT statement that returns data to populate
  272. * a number of result objects that will be keyed into a Map.
  273. * <p/>
  274. * The parameter object is generally used to supply the input
  275. * data for the WHERE clause parameter(s) of the SELECT statement.
  276. *
  277. * @param id              The name of the statement to execute.
  278. * @param parameterObject The parameter object (e.g. JavaBean, Map, XML etc.).
  279. * @param keyProp         The property to be used as the key in the Map.
  280. * @return A Map keyed by keyProp with values being the result object instance.
  281. * @throws java.sql.SQLException If an error occurs.
  282. */
  283. Map queryForMap(String id, Object parameterObject, String keyProp) throws SQLException;
  284. /**
  285. * Executes a mapped SQL SELECT statement that returns data to populate
  286. * a number of result objects from which one property will be keyed into a Map.
  287. * <p/>
  288. * The parameter object is generally used to supply the input
  289. * data for the WHERE clause parameter(s) of the SELECT statement.
  290. *
  291. * @param id              The name of the statement to execute.
  292. * @param parameterObject The parameter object (e.g. JavaBean, Map, XML etc.).
  293. * @param keyProp         The property to be used as the key in the Map.
  294. * @param valueProp       The property to be used as the value in the Map.
  295. * @return A Map keyed by keyProp with values of valueProp.
  296. * @throws java.sql.SQLException If an error occurs.
  297. */
  298. Map queryForMap(String id, Object parameterObject, String keyProp, String valueProp) throws SQLException;
  299. /**
  300. * Starts a batch in which update statements will be cached before being sent to
  301. * the database all at once. This can improve overall performance of updates update
  302. * when dealing with numerous updates (e.g. inserting 1:M related data).
  303. *
  304. * @throws java.sql.SQLException If the batch could not be started.
  305. */
  306. void startBatch() throws SQLException;
  307. /**
  308. * Executes (flushes) all statements currently batched.
  309. *
  310. * @return the number of rows updated in the batch
  311. * @throws java.sql.SQLException If the batch could not be executed or if any of the statements
  312. *                               fails.
  313. */
  314. int executeBatch() throws SQLException;
  315. /**
  316. * Executes (flushes) all statements currently batched.
  317. *
  318. * @return a List of BatchResult objects.  There will be one element in the
  319. *  list for each sub-batch executed.  A sub-batch is created by adding a statement
  320. *  to the batch that does not equal the prior statement.
  321. * @throws SQLException if a database access error occurs, or the drive
  322. *   does not support batch statements
  323. * @throws BatchException if the driver throws BatchUpdateException
  324. * @see com.ibatis.sqlmap.engine.execution.BatchException
  325. */
  326. List executeBatchDetailed() throws SQLException, BatchException;
  327. }
/*

 *  Copyright 2004 Clinton Begin

 *

 *  Licensed under the Apache License, Version 2.0 (the "License");

 *  you may not use this file except in compliance with the License.

 *  You may obtain a copy of the License at

 *

 *      http://www.apache.org/licenses/LICENSE-2.0

 *

 *  Unless required by applicable law or agreed to in writing, software

 *  distributed under the License is distributed on an "AS IS" BASIS,

 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

 *  See the License for the specific language governing permissions and

 *  limitations under the License.

 */

package com.ibatis.sqlmap.client;

import com.ibatis.common.util.PaginatedList;


import com.ibatis.sqlmap.client.event.RowHandler;


import com.ibatis.sqlmap.engine.execution.BatchException;

import java.sql.SQLException;


import java.util.List;


import java.util.Map;

/**

  • This interface declares all methods involved with executing statements
    • 

  • and batches for an SQL Map.
    • 

  • @see SqlMapSession
    • 

  • @see SqlMapClient

    
*/

    
public interface SqlMapExecutor {


/**

  • Executes a mapped SQL INSERT statement.
    • 

  • Insert is a bit different from other update methods, as it
    • 

  • provides facilities for returning the primary key of the
    • 

  • newly inserted row (rather than the effected rows).  This
    • 

  • functionality is of course optional.
    • 

  • <p/>
    • 

  • The parameter object is generally used to supply the input
    • 

  • data for the INSERT values.
    • 

  • @param id              The name of the statement to execute.
    • 

  • @param parameterObject The parameter object (e.g. JavaBean, Map, XML etc.).
    • 

  • @return The primary key of the newly inserted row.  This might be automatically
    • 

  •     generated by the RDBMS, or selected from a sequence table or other source.
    

    • 

  • @throws java.sql.SQLException If an error occurs.

    
*/

    
Object insert(String id, Object parameterObject) throws SQLException;


/**


  • Executes a mapped SQL INSERT statement.
    • 

  • Insert is a bit different from other update methods, as it
    • 

  • provides facilities for returning the primary key of the
    • 

  • newly inserted row (rather than the effected rows).  This
    • 

  • functionality is of course optional.
    • 

  • <p/>
    • 

  • This overload assumes no parameter is needed.
    • 

  • @param id              The name of the statement to execute.
    • 

  • @return The primary key of the newly inserted row.  This might be automatically
    • 

  •     generated by the RDBMS, or selected from a sequence table or other source.
    

    • 

  • @throws java.sql.SQLException If an error occurs.

    
*/

    
Object insert(String id) throws SQLException;


/**


  • Executes a mapped SQL UPDATE statement.
    • 

  • Update can also be used for any other update statement type,
    • 

  • such as inserts and deletes.  Update returns the number of
    • 

  • rows effected.
    • 

  • <p/>
    • 

  • The parameter object is generally used to supply the input
    • 

  • data for the UPDATE values as well as the WHERE clause parameter(s).
    • 

  • @param id              The name of the statement to execute.
    • 

  • @param parameterObject The parameter object (e.g. JavaBean, Map, XML etc.).
    • 

  • @return The number of rows effected.
    • 

  • @throws java.sql.SQLException If an error occurs.

    
*/

    
int update(String id, Object parameterObject) throws SQLException;


/**


  • Executes a mapped SQL UPDATE statement.
    • 

  • Update can also be used for any other update statement type,
    • 

  • such as inserts and deletes.  Update returns the number of
    • 

  • rows effected.
    • 

  • <p/>
    • 

  • This overload assumes no parameter is needed.
    • 

  • @param id              The name of the statement to execute.
    • 

  • @return The number of rows effected.
    • 

  • @throws java.sql.SQLException If an error occurs.

    
*/

    
int update(String id) throws SQLException;


/**


  • Executes a mapped SQL DELETE statement.
    • 

  • Delete returns the number of rows effected.
    • 

  • <p/>
    • 

  • The parameter object is generally used to supply the input
    • 

  • data for the WHERE clause parameter(s) of the DELETE statement.
    • 

  • @param id              The name of the statement to execute.
    • 

  • @param parameterObject The parameter object (e.g. JavaBean, Map, XML etc.).
    • 

  • @return The number of rows effected.
    • 

  • @throws java.sql.SQLException If an error occurs.

    
*/

    
int delete(String id, Object parameterObject) throws SQLException;


/**


  • Executes a mapped SQL DELETE statement.
    • 

  • Delete returns the number of rows effected.
    • 

  • <p/>
    • 

  • This overload assumes no parameter is needed.
    • 

  • @param id              The name of the statement to execute.
    • 

  • @return The number of rows effected.
    • 

  • @throws java.sql.SQLException If an error occurs.

    
*/

    
int delete(String id) throws SQLException;


/**


  • Executes a mapped SQL SELECT statement that returns data to populate
    • 

  • a single object instance.
    • 

  • <p/>
    • 

  • The parameter object is generally used to supply the input
    • 

  • data for the WHERE clause parameter(s) of the SELECT statement.
    • 

  • @param id              The name of the statement to execute.
    • 

  • @param parameterObject The parameter object (e.g. JavaBean, Map, XML etc.).
    • 

  • @return The single result object populated with the result set data,
    • 

  •     or null if no result was found
    

    • 

  • @throws java.sql.SQLException If more than one result was found, or if any other error occurs.

    
*/

    
Object queryForObject(String id, Object parameterObject) throws SQLException;


/**


  • Executes a mapped SQL SELECT statement that returns data to populate
    • 

  • a single object instance.
    • 

  • <p/>
    • 

  • This overload assumes no parameter is needed.
    • 

  • @param id              The name of the statement to execute.
    • 

  • @return The single result object populated with the result set data,
    • 

  •     or null if no result was found
    

    • 

  • @throws java.sql.SQLException If more than one result was found, or if any other error occurs.

    
*/

    
Object queryForObject(String id) throws SQLException;


/**


  • Executes a mapped SQL SELECT statement that returns data to populate
    • 

  • the supplied result object.
    • 

  • <p/>
    • 

  • The parameter object is generally used to supply the input
    • 

  • data for the WHERE clause parameter(s) of the SELECT statement.
    • 

  • @param id              The name of the statement to execute.
    • 

  • @param parameterObject The parameter object (e.g. JavaBean, Map, XML etc.).
    • 

  • @param resultObject    The result object instance that should be populated with result data.
    • 

  • @return The single result object as supplied by the resultObject parameter, populated with the result set data,
    • 

  •     or null if no result was found
    

    • 

  • @throws java.sql.SQLException If more than one result was found, or if any other error occurs.

    
*/

    
Object queryForObject(String id, Object parameterObject, Object resultObject) throws SQLException;


/**


  • Executes a mapped SQL SELECT statement that returns data to populate
    • 

  • a number of result objects.
    • 

  • <p/>
    • 

  • The parameter object is generally used to supply the input
    • 

  • data for the WHERE clause parameter(s) of the SELECT statement.
    • 

  • @param id              The name of the statement to execute.
    • 

  • @param parameterObject The parameter object (e.g. JavaBean, Map, XML etc.).
    • 

  • @return A List of result objects.
    • 

  • @throws java.sql.SQLException If an error occurs.

    
*/

    
List queryForList(String id, Object parameterObject) throws SQLException;


/**


  • Executes a mapped SQL SELECT statement that returns data to populate
    • 

  • a number of result objects.
    • 

  • <p/>
    • 

  • This overload assumes no parameter is needed.
    • 

  • @param id              The name of the statement to execute.
    • 

  • @return A List of result objects.
    • 

  • @throws java.sql.SQLException If an error occurs.

    
*/

    
List queryForList(String id) throws SQLException;


/**


  • Executes a mapped SQL SELECT statement that returns data to populate
    • 

  • a number of result objects within a certain range.
    • 

  • <p/>
    • 

  • The parameter object is generally used to supply the input
    • 

  • data for the WHERE clause parameter(s) of the SELECT statement.
    • 

  • @param id              The name of the statement to execute.
    • 

  • @param parameterObject The parameter object (e.g. JavaBean, Map, XML etc.).
    • 

  • @param skip            The number of results to ignore.
    • 

  • @param max             The maximum number of results to return.
    • 

  • @return A List of result objects.
    • 

  • @throws java.sql.SQLException If an error occurs.

    
*/

    
List queryForList(String id, Object parameterObject, int skip, int max) throws SQLException;


/**


  • Executes a mapped SQL SELECT statement that returns data to populate
    • 

  • a number of result objects within a certain range.
    • 

  • <p/>
    • 

  • This overload assumes no parameter is needed.
    • 

  • @param id              The name of the statement to execute.
    • 

  • @param skip            The number of results to ignore.
    • 

  • @param max             The maximum number of results to return.
    • 

  • @return A List of result objects.
    • 

  • @throws java.sql.SQLException If an error occurs.

    
*/

    
List queryForList(String id, int skip, int max) throws SQLException;


/**


  • Executes a mapped SQL SELECT statement that returns a number of
    • 

  • result objects that will be handled one at a time by a
    • 

  • RowHandler.
    • 

  • <p/>
    • 

  • This is generally a good approach to take when dealing with large sets
    • 

  • of records (i.e. hundreds, thousands...) that need to be processed without
    • 

  • eating up all of the system resources.
    • 

  • <p/>
    • 

  • The parameter object is generally used to supply the input
    • 

  • data for the WHERE clause parameter(s) of the SELECT statement.
    • 

  • @param id              The name of the statement to execute.
    • 

  • @param parameterObject The parameter object (e.g. JavaBean, Map, XML etc.).
    • 

  • @param rowHandler      A RowHandler instance
    • 

  • @throws java.sql.SQLException If an error occurs.

    
*/

    
void queryWithRowHandler(String id, Object parameterObject, RowHandler rowHandler) throws SQLException;


/**


  • Executes a mapped SQL SELECT statement that returns a number of
    • 

  • result objects that will be handled one at a time by a
    • 

  • RowHandler.
    • 

  • <p/>
    • 

  • This is generally a good approach to take when dealing with large sets
    • 

  • of records (i.e. hundreds, thousands...) that need to be processed without
    • 

  • eating up all of the system resources.
    • 

  • <p/>
    • 

  • This overload assumes no parameter is needed.
    • 

  • @param id              The name of the statement to execute.
    • 

  • @param rowHandler      A RowHandler instance
    • 

  • @throws java.sql.SQLException If an error occurs.

    
*/

    
void queryWithRowHandler(String id, RowHandler rowHandler) throws SQLException;


/**


  • Executes a mapped SQL SELECT statement that returns data to populate
    • 

  • a number of result objects a page at a time.
    • 

  • <p/>
    • 

  • The parameter object is generally used to supply the input
    • 

  • data for the WHERE clause parameter(s) of the SELECT statement.
    • 

  • @param id              The name of the statement to execute.
    • 

  • @param parameterObject The parameter object (e.g. JavaBean, Map, XML etc.).
    • 

  • @param pageSize        The maximum number of result objects each page can hold.
    • 

  • @return A PaginatedList of result objects.
    • 

  • @throws java.sql.SQLException If an error occurs.
    • 

  • @deprecated All paginated list features have been deprecated

    
*/

    
PaginatedList queryForPaginatedList(String id, Object parameterObject, int pageSize) throws SQLException;


/**


  • Executes a mapped SQL SELECT statement that returns data to populate
    • 

  • a number of result objects a page at a time.
    • 

  • <p/>
    • 

  • This overload assumes no parameter is needed.
    • 

  • @param id              The name of the statement to execute.
    • 

  • @param pageSize        The maximum number of result objects each page can hold.
    • 

  • @return A PaginatedList of result objects.
    • 

  • @throws java.sql.SQLException If an error occurs.
    • 

  • @deprecated All paginated list features have been deprecated

    
*/

    
PaginatedList queryForPaginatedList(String id, int pageSize) throws SQLException;


/**


  • Executes a mapped SQL SELECT statement that returns data to populate
    • 

  • a number of result objects that will be keyed into a Map.
    • 

  • <p/>
    • 

  • The parameter object is generally used to supply the input
    • 

  • data for the WHERE clause parameter(s) of the SELECT statement.
    • 

  • @param id              The name of the statement to execute.
    • 

  • @param parameterObject The parameter object (e.g. JavaBean, Map, XML etc.).
    • 

  • @param keyProp         The property to be used as the key in the Map.
    • 

  • @return A Map keyed by keyProp with values being the result object instance.
    • 

  • @throws java.sql.SQLException If an error occurs.

    
*/

    
Map queryForMap(String id, Object parameterObject, String keyProp) throws SQLException;


/**


  • Executes a mapped SQL SELECT statement that returns data to populate
    • 

  • a number of result objects from which one property will be keyed into a Map.
    • 

  • <p/>
    • 

  • The parameter object is generally used to supply the input
    • 

  • data for the WHERE clause parameter(s) of the SELECT statement.
    • 

  • @param id              The name of the statement to execute.
    • 

  • @param parameterObject The parameter object (e.g. JavaBean, Map, XML etc.).
    • 

  • @param keyProp         The property to be used as the key in the Map.
    • 

  • @param valueProp       The property to be used as the value in the Map.
    • 

  • @return A Map keyed by keyProp with values of valueProp.
    • 

  • @throws java.sql.SQLException If an error occurs.

    
*/

    
Map queryForMap(String id, Object parameterObject, String keyProp, String valueProp) throws SQLException;


/**


  • Starts a batch in which update statements will be cached before being sent to
    • 

  • the database all at once. This can improve overall performance of updates update
    • 

  • when dealing with numerous updates (e.g. inserting 1:M related data).
    • 

  • @throws java.sql.SQLException If the batch could not be started.

    
*/

    
void startBatch() throws SQLException;


/**


  • Executes (flushes) all statements currently batched.
    • 

  • @return the number of rows updated in the batch
    • 

  • @throws java.sql.SQLException If the batch could not be executed or if any of the statements
    • 

  •                           fails.
    



*/


int executeBatch() throws SQLException;


/**


  • Executes (flushes) all statements currently batched.
    • 

  • @return a List of BatchResult objects.  There will be one element in the
    • 

  • list for each sub-batch executed.  A sub-batch is created by adding a statement
    • 

  • to the batch that does not equal the prior statement.
    • 

  • @throws SQLException if a database access error occurs, or the drive
    • 

  • does not support batch statements
    • 

  • @throws BatchException if the driver throws BatchUpdateException
    • 

  • @see com.ibatis.sqlmap.engine.execution.BatchException

    
*/

    
List executeBatchDetailed() throws SQLException, BatchException;

    
}

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