My DAO and DAOImlp classes were generated by Ibator. The only generated
constructor for AliasesDAOImpl is below:
---snip---
/** * This method was generated by Abator for iBATIS. This method corresponds
to the database table aliases * @abatorgenerated Fri Sep 05 23:35:30 EST 2008
*/ public AliasesDAOImpl ( SqlMapClient sqlMapClient ) { super ();
this.sqlMapClient = sqlMapClient; }
---snip---
Is there a config option for abatorConfig.xml that tells Ibator to build
classes including a constructor that takes a DaoManager object?
Thanks,
Paul
Subject: RE: java.lang.InstantiationException using Ibatis DAODate: Mon, 8 Sep
2008 08:56:37 +0200From: [EMAIL PROTECTED]: [email protected]
Your AliasesDaoImpl should have a public constructor that takes a DaoManager as
its single argument. Can you check that this is the case?
Hth,
Niels
From: Paul Ski [mailto:[EMAIL PROTECTED] Sent: Sunday, September 07, 2008 3:47
AMTo: [EMAIL PROTECTED]: java.lang.InstantiationException using Ibatis DAO
Hi list, Environment: - Windows XP- Java(TM) SE Runtime Environment (build
1.6.0_10-rc-b28)- Eclipse Version: 3.4.0 Build id: I20080617-2000- Ibatis
2.3.0.677 Project
Jars:mysql-connector-java-5.1.6-bin.jaribatis-2.3.0.677.jaribatis-dao-2.jar
I've created a class to return me a DaoManager object ---snip---import
java.io.Reader;import com.ibatis.common.resources.Resources;import
com.ibatis.dao.client.DaoManager;import
com.ibatis.dao.client.DaoManagerBuilder; public class DaoManagerMapper{ private
static final DaoManager daoManager; static { try { Reader reader =
Resources.getResourceAsReader ( "dao.xml" ); daoManager =
DaoManagerBuilder.buildDaoManager ( reader ); } catch ( Exception e ) {
throw new RuntimeException ( "Could not initialize DaoManager. Cause: " + e
); } } public static DaoManager getDaoManager () { return daoManager;
}}---snip--- Test stub to call the code is: ---snip---import
com.ibatis.dao.client.DaoManager;import com.intient.smash.ibatis.Aliases;import
com.intient.smash.ibatis.impl.AliasesDAO; public class TestDaoManagerMapper{
public TestDaoManagerMapper () { try { DaoManager daoManager =
DaoManagerMapper.getDaoManager (); AliasesDAO aliasesDao =
(AliasesDAO)daoManager .getDao ( AliasesDAO.class ); try {... } catch
( Exception e ) { e.printStackTrace (); } } public static void main (
String[] args ) { new TestDaoManagerMapper (); }}---snip--- DAO Config:
---snip---<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE daoConfig PUBLIC
"-//ibatis.apache.org//DTD DAO Configuration 2.0//EN"
"http://ibatis.apache.org/dtd/dao-2.dtd";><daoConfig> <context>
<transactionManager type="SQLMAP"> <property name="SqlMapConfigResource"
value="sqlMapConfig.xml" /> </transactionManager> <!-- DAO interfaces and
implementations should be listed here --> <dao
interface="com.intient.smash.ibatis.impl.AliasesDAO"
implementation="com.intient.smash.ibatis.impl.AliasesDAOImpl" />...
</context></daoConfig>---snip--- ---snip---<?xml version="1.0"
encoding="UTF-8"?><!DOCTYPE sqlMapConfig PUBLIC "-//ibatis.apache.org//DTD SQL
Map Config 2.0//EN"
"http://ibatis.apache.org/dtd/sql-map-config-2.dtd";><sqlMapConfig> <settings
useStatementNamespaces="true" /> <transactionManager type="JDBC"> <dataSource
type="SIMPLE"> <property name="JDBC.Driver" value="com.mysql.jdbc.Driver" />
<property name="JDBC.ConnectionURL" value="jdbc:mysql://localhost/xxxxxxxx" />
<property name="JDBC.Username" value="xxxxxxxx" /> <property
name="JDBC.Password" value="xxxxxxxx" /> <property
name="JDBC.DefaultAutoCommit" value="true" /> </dataSource>
</transactionManager> <sqlMap
resource="com/intient/smash/ibatis/maps/aliases_SqlMap.xml"
/>...</sqlMapConfig>---snip--- Exception: ---snip---Exception in thread "main"
java.lang.ExceptionInInitializerError at
com.intient.smash.TestDaoManagerMapper.<init>(TestDaoManagerMapper.java:14) at
com.intient.smash.TestDaoManagerMapper.main(TestDaoManagerMapper.java:40)Caused
by: java.lang.RuntimeException: Could not initialize DaoManager. Cause:
com.ibatis.dao.client.DaoException: Error while configuring DaoManager. Cause:
com.ibatis.dao.client.DaoException: Error configuring DAO. Cause:
java.lang.InstantiationException: com.intient.smash.ibatis.impl.AliasesDAOImpl
at com.intient.smash.DaoManagerMapper.<clinit>(DaoManagerMapper.java:24) ... 2
more---snip--- I can get the SQL Map to work against my database and pull out
data but the above DAO code throws the above exception. Any ideas would be
helpful. Thanks, Paul
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