Hi everybody, Please, can you help me?
I'm migrating a web application from proprietary JDBC framework to iBatis. Every data retrieving from the database come from stored procedure. I managed to refactor a small unit, after some difficulties finding the correct syntax for stored procedure returning an object, and a problem with Websphere creating a new transaction never commited. Everything was alright, and I set up a small training for my team to present iBatis with a live exemple. Then, we decided to use Tomcat instead of Websphere, in dev environment, and we noticed my code didn't work anymore. It works on Webphere, and not in Tomcat. Another topic in the mailing list is very similar: http://www.mail-archive.com/[email protected]/msg00942.html but since the procedure returns several columns (we map an object from them), I can't use the answer here: http://www.mail-archive.com/[email protected]/msg00946.html Here are some more informations: I debugged from the iBatis source, and the deeper I managed to get was : File: SqlExecutor.java, method: handleResults(RequestScope, ResultSet, int, int, RowHandlerCallback) Line: if (rs.getType() != ResultSet.TYPE_FORWARD_ONLY) I suspect rs.getType throws a nullpointerexception (but rs is a DelegationResultSet, and is not null) The stack trace is: 2006-05-16 15:02:48,413 ERROR[http-8080-Processor5] xxxxx.model.client.dao.impl.ClientDescriptionIbatisDAO(41) - SQLException --- The error occurred in xxxxx/ibatis/sqlmap/ClientDescription.xml. --- The error occurred while applying a parameter map. --- Check the ClientDescription.clientDescriptionParams. --- Check the results (failed to retrieve results). --- Cause: java.lang.NullPointerException com.ibatis.common.jdbc.exception.NestedSQLException: --- The error occurred in xxxxx/ibatis/sqlmap/ClientDescription.xml. --- The error occurred while applying a parameter map. --- Check the ClientDescription.clientDescriptionParams. --- Check the results (failed to retrieve results). --- Cause: java.lang.NullPointerException Caused by: java.lang.NullPointerException at com.ibatis.sqlmap.engine.mapping.statement.GeneralStatement.executeQueryWithCallback(GeneralStatement.java:188) at com.ibatis.sqlmap.engine.mapping.statement.GeneralStatement.executeQueryForObject(GeneralStatement.java:104) at com.ibatis.sqlmap.engine.impl.SqlMapExecutorDelegate.queryForObject(SqlMapExecutorDelegate.java:561) at com.ibatis.sqlmap.engine.impl.SqlMapExecutorDelegate.queryForObject(SqlMapExecutorDelegate.java:536) at com.ibatis.sqlmap.engine.impl.SqlMapSessionImpl.queryForObject(SqlMapSessionImpl.java:93) at com.ibatis.sqlmap.engine.impl.SqlMapClientImpl.queryForObject(SqlMapClientImpl.java:70) ........... Caused by: java.lang.NullPointerException at org.apache.commons.dbcp.DelegatingResultSet.close(DelegatingResultSet.java:132) at com.ibatis.sqlmap.engine.execution.SqlExecutor.closeResultSet(SqlExecutor.java:423) at com.ibatis.sqlmap.engine.execution.SqlExecutor.executeQueryProcedure(SqlExecutor.java:305) at com.ibatis.sqlmap.engine.mapping.statement.ProcedureStatement.sqlExecuteQuery(ProcedureStatement.java:34) at com.ibatis.sqlmap.engine.mapping.statement.GeneralStatement.executeQueryWithCallback(GeneralStatement.java:173) ... 60 more Caused by: java.lang.NullPointerException at org.apache.commons.dbcp.DelegatingResultSet.close(DelegatingResultSet.java:132) at com.ibatis.sqlmap.engine.execution.SqlExecutor.closeResultSet(SqlExecutor.java:423) at com.ibatis.sqlmap.engine.execution.SqlExecutor.executeQueryProcedure(SqlExecutor.java:305) at com.ibatis.sqlmap.engine.mapping.statement.ProcedureStatement.sqlExecuteQuery(ProcedureStatement.java:34) My sqlmap-config file is: <?xml version="1.0" encoding="UTF-8" ?> <!DOCTYPE sqlMapConfig PUBLIC "-//iBATIS.com//DTD SQL MAP Config 2.0//EN" "http://www.ibatis.com/dtd/sql-map-config-2.dtd";> <sqlMapConfig> <settings cacheModelsEnabled="true" enhancementEnabled="false" lazyLoadingEnabled="true" maxRequests="256" maxSessions="32" maxTransactions="16" useStatementNamespaces="false" /> <!-- Normal version, but we can't use it because of Websphere <transactionManager type="JDBC"> <dataSource type="JNDI"> <property name="DataSource" value="java:comp/env/jdbc/xxxxx"/> </dataSource> </transactionManager> --> <!-- Special version, because Websphere create a transaction itself, and never commit or rollback it --> <transactionManager commitRequired="true" type="EXTERNAL"> <property name="DefaultAutoCommit" value="false"/> <property name="SetAutoCommitAllowed" value="false"/> <dataSource type="JNDI"> <property name="DataSource" value="java:comp/env/jdbc/xxxxx"/> </dataSource> </transactionManager> <sqlMap resource="xxxxx/ibatis/sqlmap/ClientDescription.xml"/> </sqlMapConfig> NOTE : I TRY WITH THE "NORMAL SECTION" AND TOMCAT TOO. I tried both, and had the same results. My sqlmap file: <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE sqlMap PUBLIC "-//iBATIS.com//DTD SQL Map 2.0//EN" "http://www.ibatis.com/dtd/sql-map-2.dtd";> <sqlMap namespace="ClientDescription"> <typeAlias alias="clientDescription" type="xxxxx.ibatis.pojo.IbatisClientDescription"/> <parameterMap id="clientDescriptionParams" class="java.util.Map"> <parameter property="contextId"/> <parameter property="ricosId"/> </parameterMap> <resultMap id="clientDescriptionResult" class="clientDescription"> <result property="sector" column="SECTOR"/> <result property="sectorLab" column="SECTORLABEL"/> <result property="category" column="CATEGORY"/> <result property="categoryLab" column="CATEGORYLABEL"/> <result property="economicSector" column="ECONOMICSECTOR"/> <result property="economicSectorLab" column="BUSAREALABEL"/> <result property="businessArea" column="BUSAREA"/> <result property="businessAreaLab" column="BUSAREALABEL"/> <result property="country" column="COUNTRY"/> <result property="countryLab" column="COUNTRYLABEL"/> <result property="residence" column="RESIDENCE"/> <result property="residenceLab" column="RESIDENCELABEL"/> <result property="region" column="REGION"/> <result property="regionLab" column="REGIONLABEL"/> <result property="rating" column="RATING"/> <result property="ratingLab" column="RATINGLABEL"/> <result property="freezeDateAsSybase" column="FREEZEDATE"/> <result property="comment" column="COMMENT"/> </resultMap> <procedure id="getClientDescription" parameterMap="clientDescriptionParams" resultMap="clientDescriptionResult"> <![CDATA[ {call CCCCustomersDetail(?, ?)} ]]> </procedure> </sqlMap> The problem may come from org.apache.commons.dbcp.DelegatingResultSet.close(DelegatingResultSet.java:132) (which seems to be a Tomcat class), anybody found some way to make calling stored procedure (Database is SYBASE) work? I hope you could help me, sorry for the bad english, Cyril
