iBatis 关系的配置，！

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更多相关推荐 程序所涉及的lib版本分别为:
ibatis-common-2.2.0.638.jar
ibatis-dao-2.2.0.638.jar
ibatis-sqlmap-2.2.0.638.jar
spring-1.2.8.jar
junit-3.8.1.jar

程序所涉及的源文件分别为:
// ******************************* iBatis *******************
# classpath:/ibatis/sql-map-config.xml
Java代码
<?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" 
          
        <!-- 此处为false程序运行正常，但无法延迟，，若此处修改为 true 时,junit test会出现错误,具体错误见文章末尾 -->  
        enhancementEnabled ="false" // <SPAN style="COLOR: red">****</SPAN>  
        lazyLoadingEnabled ="true" 
        errorTracingEnabled ="true" 
        maxRequests ="32" 
        maxSessions ="10" 
        maxTransactions ="5" 
        useStatementNamespaces ="true" 
     />   
       
    <sqlMap resource="ibatis/maps/Parent.xml"/>  
    <sqlMap resource="ibatis/maps/Child.xml"/>      
</sqlMapConfig> 

<?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"

<!-- 此处为false程序运行正常，但无法延迟，，若此处修改为 true 时,junit test会出现错误,具体错误见文章末尾 -->
enhancementEnabled ="false" // ****
lazyLoadingEnabled ="true"
errorTracingEnabled ="true"
maxRequests ="32"
maxSessions ="10"
maxTransactions ="5"
useStatementNamespaces ="true"
/>

<sqlMap resource="ibatis/maps/Parent.xml"/>
<sqlMap resource="ibatis/maps/Child.xml"/>
</sqlMapConfig>

# classpath:/ibatis/maps/Parent.xml
Java代码
<?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="Parent">  
    <resultMap id="result" class="com.domain.Parent">  
        <result property="id" column="ID"/>  
        <result property="name" column="PARENT_NAME"/>  
    </resultMap>  
      
    <resultMap id="resultAll" class="com.domain.Parent" extends="result">  
        <!-- java.util.List children; -->  
        <result property="children" column="ID" select="Child.findByParent"/>  
    </resultMap>  
      
    <statement id="save">  
        <selectKey resultClass="java.lang.Long" keyProperty="id">    
            SELECT SEQ_PARENT_ID.NEXTVAL AS id FROM DUAL  
        </selectKey>   
 
        INSERT INTO PARENT  
        (ID, PARENT_NAME)   
        values   
        (#id#, #PARENT_NAME:VARCHAR#)  
    </statement>  
      
    <statement id="update">  
        update PARENT t  
            set t.PARENT_NAME = #PARENT_NAME:VARCHAR#  
        where t.ID = #id#  
    </statement>  
      
    <statement id="delete">  
        delete from PARENT t  
        where t.ID = #id#  
    </statement>    
      
    <statement id="get" parameterClass="java.lang.Long" resultMap="result">  
        select *   
        from PARENT t  
        where t.ID = #id#  
    </statement>    
</sqlMap> 

<?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="Parent">
<resultMap id="result" class="com.domain.Parent">
<result property="id" column="ID"/>
<result property="name" column="PARENT_NAME"/>
</resultMap>

<resultMap id="resultAll" class="com.domain.Parent" extends="result">
<!-- java.util.List children; -->
<result property="children" column="ID" select="Child.findByParent"/>
</resultMap>

<statement id="save">
<selectKey resultClass="java.lang.Long" keyProperty="id"> 
SELECT SEQ_PARENT_ID.NEXTVAL AS id FROM DUAL
</selectKey>

INSERT INTO PARENT
(ID, PARENT_NAME)
values
(#id#, #PARENT_NAME:VARCHAR#)
</statement>

<statement id="update">
update PARENT t
set t.PARENT_NAME = #PARENT_NAME:VARCHAR#
where t.ID = #id#
</statement>

<statement id="delete">
delete from PARENT t
where t.ID = #id#
</statement>

<statement id="get" parameterClass="java.lang.Long" resultMap="result">
select *
from PARENT t
where t.ID = #id#
</statement>
</sqlMap>

# com.domain.base.BaseParent.java
Java代码
package com.domain.base;  
 
import java.io.Serializable;  
import java.util.List;  
/** 
* This is an object that contains data related to the PARENT table. Do 
* not modify this class because it will be overwritten if the configuration 
* file related to this class is modified. 
*  
* table="PARENT" 
*  
* @author Lincee 
*/ 
public abstract class BaseParent implements Serializable {    
    public BaseParent(){}  
    public BaseParent(Long id){this.setId(id);}  
    private int hashCode = Integer.MIN_VALUE;  
    private Long id;  
    private String name;  
    private List children;  
    // setter, getter;  
    public boolean equals(Object obj) { ... }  
    public int hashCode() { ... }  
} 

package com.domain.base;

import java.io.Serializable;
import java.util.List;
/**
* This is an object that contains data related to the PARENT table. Do
* not modify this class because it will be overwritten if the configuration
* file related to this class is modified.
*
* table="PARENT"
*
* @author Lincee
*/
public abstract class BaseParent implements Serializable {
public BaseParent(){}
public BaseParent(Long id){this.setId(id);}
private int hashCode = Integer.MIN_VALUE;
private Long id;
private String name;
private List children;
// setter, getter;
public boolean equals(Object obj) { ... }
public int hashCode() { ... }
}

# com.domain.Parent.java
Java代码
package com.domain;  
import com.domain.base.BaseParent;  
public class Parent extends BaseParent {  
    private static final long serialVersionUID = 1L;  
      
    public Parent(){super();}  
    public Parent(Long id){super(id);}  
} 

package com.domain;
import com.domain.base.BaseParent;
public class Parent extends BaseParent {
private static final long serialVersionUID = 1L;

public Parent(){super();}
public Parent(Long id){super(id);}
}

# classpath:/ibatis/maps/Child.xml
Java代码
<?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="Child">  
    <resultMap id="result" class="com.domain.Child">  
        <result property="id" column="ID"/>  
        <result property="name" column="CHILD_NAME"/>  
        <result property="parentId" column="PARENT_ID"/>  
        <result property="parent" column="PARENT_ID" select="Parent.get"/>  
    </resultMap>  
      
    <statement id="save">  
        <selectKey resultClass="java.lang.Long" keyProperty="id">    
            SELECT SEQ_CHILD_ID.NEXTVAL AS id FROM DUAL  
        </selectKey>   
 
        INSERT INTO CHILD  
        (ID, CHILD_NAME)   
        values   
        (#id#, #CHILD_NAME:VARCHAR#)  
    </statement>  
      
    <statement id="update">  
        update CHILD t  
            set t.CHILD_NAME = #CHILD_NAME:VARCHAR#  
        where t.ID = #id#  
    </statement>  
      
    <statement id="delete">  
        delete from CHILD t  
        where t.ID = #id#  
    </statement>    
 
    <statement id="get" parameterClass="java.lang.Long" resultMap="result">  
        select *   
        from CHILD t  
        where t.ID = #id#  
    </statement>  
</sqlMap> 

<?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="Child">
<resultMap id="result" class="com.domain.Child">
<result property="id" column="ID"/>
<result property="name" column="CHILD_NAME"/>
<result property="parentId" column="PARENT_ID"/>
<result property="parent" column="PARENT_ID" select="Parent.get"/>
</resultMap>

<statement id="save">
<selectKey resultClass="java.lang.Long" keyProperty="id"> 
SELECT SEQ_CHILD_ID.NEXTVAL AS id FROM DUAL
</selectKey>

INSERT INTO CHILD
(ID, CHILD_NAME)
values
(#id#, #CHILD_NAME:VARCHAR#)
</statement>

<statement id="update">
update CHILD t
set t.CHILD_NAME = #CHILD_NAME:VARCHAR#
where t.ID = #id#
</statement>

<statement id="delete">
delete from CHILD t
where t.ID = #id#
</statement>

<statement id="get" parameterClass="java.lang.Long" resultMap="result">
select *
from CHILD t
where t.ID = #id#
</statement>
</sqlMap>

# com.domain.base.BaseChild.java
Java代码
package com.domain.base;  
import java.io.Serializable;  
import com.domain.Parent;  
/** 
* This is an object that contains data related to the CHILD table. Do 
* not modify this class because it will be overwritten if the configuration 
* file related to this class is modified. 
*  
* table="CHILD" 
*  
* @author Lincee 
*/ 
public abstract class BaseChild implements Serializable {     
    public BaseChild(){}  
    public BaseChild(Long id){this.setId(id);}  
    private int hashCode = Integer.MIN_VALUE;  
    private Long id;  
    private String name;  
    private Parent parent;  
    // setter, getter;  
    public boolean equals(Object obj) { ... }  
    public int hashCode() { ... }  
} 

package com.domain.base;
import java.io.Serializable;
import com.domain.Parent;
/**
* This is an object that contains data related to the CHILD table. Do
* not modify this class because it will be overwritten if the configuration
* file related to this class is modified.
*
* table="CHILD"
*
* @author Lincee
*/
public abstract class BaseChild implements Serializable {
public BaseChild(){}
public BaseChild(Long id){this.setId(id);}
private int hashCode = Integer.MIN_VALUE;
private Long id;
private String name;
private Parent parent;
// setter, getter;
public boolean equals(Object obj) { ... }
public int hashCode() { ... }
}

# com.domain.Child.java
Java代码
package com.domain;  
import com.domain.base.BaseChild;  
public class Child extends BaseChild {  
    private static final long serialVersionUID = 1L;  
      
    public Child(){super();}  
    public Child(Long id){super(id);}  
} 

package com.domain;
import com.domain.base.BaseChild;
public class Child extends BaseChild {
private static final long serialVersionUID = 1L;

public Child(){super();}
public Child(Long id){super(id);}
}

// ******************************* Spring *******************
Java代码
<bean id="sqlMapClient" class="org.springframework.orm.ibatis.SqlMapClientFactoryBean">  
    <property name="configLocation" value="classpath:/ibatis/sql-map-config.xml"/>  
    <property name="dataSource" ref="dataSource"/>  
</bean>  
 
<bean id="baseDao" abstract="true" class="com.dao.BaseDaoImpl">  
    <property name="sqlMapClient" ref="sqlMapClient"/>  
</bean> 

<bean id="sqlMapClient" class="org.springframework.orm.ibatis.SqlMapClientFactoryBean">
<property name="configLocation" value="classpath:/ibatis/sql-map-config.xml"/>
<property name="dataSource" ref="dataSource"/>
</bean>

<bean id="baseDao" abstract="true" class="com.dao.BaseDaoImpl">
<property name="sqlMapClient" ref="sqlMapClient"/>
</bean>

// ******************************* JUnit ********************
# com.framework.test.TestBase
Java代码
package com.framework.test;  
import junit.framework.TestCase;  
import org.springframework.context.ApplicationContext;  
import org.springframework.context.support.ClassPathXmlApplicationContext;  
 
/** 
*  
*  
* @author Lincee 
*/ 
public abstract class TestBase extends TestCase {  
    protected String getSpringContextPath() {  
        return "spring/*.xml";  
    }  
    protected ApplicationContext applicationContext = null;  
    protected final void setUp() throws Exception {  
        super.setUp();  
        applicationContext = new ClassPathXmlApplicationContext(  
                getSpringContextPath());  
        initialize();  
    }  
    protected abstract void initialize() throws Exception;  
    public abstract void testDao() throws Exception;  
} 

package com.framework.test;
import junit.framework.TestCase;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

/**
*
*
* @author Lincee
*/
public abstract class TestBase extends TestCase {
protected String getSpringContextPath() {
return "spring/*.xml";
}
protected ApplicationContext applicationContext = null;
protected final void setUp() throws Exception {
super.setUp();
applicationContext = new ClassPathXmlApplicationContext(
getSpringContextPath());
initialize();
}
protected abstract void initialize() throws Exception;
public abstract void testDao() throws Exception;
}

# com.dao.TestChildDao
Java代码
package com.dao;  
import junit.framework.Assert;  
public class TestChildDao extends TestBase {  
    private ChildDao childDao;  
    protected void initialize() throws Exception {  
        childDao = (ChildDao) applicationContext.getBean("childDao");  
    }  
 
    public void testDao() throws Exception {  
        Assert.assertNotNull(childDao);  
    }  
      
    public void testGet() {  
        Child child = childDao.get(1L);  
        System.out.println(child.getName());  
        // System.out.println(child.getName() + " : " + child.getParent().getName());  
    }  
}    

package com.dao;
import junit.framework.Assert;
public class TestChildDao extends TestBase {
private ChildDao childDao;
protected void initialize() throws Exception {
childDao = (ChildDao) applicationContext.getBean("childDao");
}

public void testDao() throws Exception {
Assert.assertNotNull(childDao);
}

public void testGet() {
Child child = childDao.get(1L);
System.out.println(child.getName());
// System.out.println(child.getName() + " : " + child.getParent().getName());
}
}

// ********** enhancementEnabled = "true" 运行的错误信息 ******
Java代码
org.springframework.jdbc.UncategorizedSQLException: SqlMapClient operation; uncategorized SQLException for SQL []; SQL state [null]; error code [0];     
--- The error occurred in ibatis/maps/Child.xml.    
--- The error occurred while applying a result map.    
--- Check the Child.resultAll.    
--- Check the result mapping for the 'parent' property.    
--- Cause: net.sf.cglib.core.CodeGenerationException: net.sf.cglib.proxy.UndeclaredThrowableException-->java.lang.IllegalAccessException-->Class com.ibatis.sqlmap.engine.mapping.result.loader.EnhancedLazyResultLoader$EnhancedLazyResultLoaderImpl can not access a member of class com.domain.base.BaseParent with modifiers "protected"; nested exception is com.ibatis.common.jdbc.exception.NestedSQLException:     
--- The error occurred in ibatis/maps/Child.xml.    
--- The error occurred while applying a result map.    
--- Check the Child.result.    
--- Check the result mapping for the 'parent' property.    
--- Cause: net.sf.cglib.core.CodeGenerationException: net.sf.cglib.proxy.UndeclaredThrowableException-->java.lang.IllegalAccessException-->Class com.ibatis.sqlmap.engine.mapping.result.loader.EnhancedLazyResultLoader$EnhancedLazyResultLoaderImpl can not access a member of class com.domain.base.BaseParent with modifiers "protected" 
Caused by: net.sf.cglib.core.CodeGenerationException: net.sf.cglib.proxy.UndeclaredThrowableException-->java.lang.IllegalAccessException-->Class com.ibatis.sqlmap.engine.mapping.result.loader.EnhancedLazyResultLoader$EnhancedLazyResultLoaderImpl can not access a member of class com.domain.base.BaseParent with modifiers "protected" 
com.ibatis.common.jdbc.exception.NestedSQLException:     
--- The error occurred in ibatis/maps/Child.xml.    
--- The error occurred while applying a result map.    
--- Check the Child.result.    
--- Check the result mapping for the 'parent' property.    
--- Cause: net.sf.cglib.core.CodeGenerationException: net.sf.cglib.proxy.UndeclaredThrowableException-->java.lang.IllegalAccessException-->Class com.ibatis.sqlmap.engine.mapping.result.loader.EnhancedLazyResultLoader$EnhancedLazyResultLoaderImpl can not access a member of class com.domain.base.BaseParent with modifiers "protected" 
Caused by: net.sf.cglib.core.CodeGenerationException: net.sf.cglib.proxy.UndeclaredThrowableException-->java.lang.IllegalAccessException-->Class com.ibatis.sqlmap.engine.mapping.result.loader.EnhancedLazyResultLoader$EnhancedLazyResultLoaderImpl can not access a member of class com.domain.base.BaseParent with modifiers "protected" 
    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:565)  
    at com.ibatis.sqlmap.engine.impl.SqlMapExecutorDelegate.queryForObject(SqlMapExecutorDelegate.java:540)  
    at com.ibatis.sqlmap.engine.impl.SqlMapSessionImpl.queryForObject(SqlMapSessionImpl.java:106)  
    at org.springframework.orm.ibatis.SqlMapClientTemplate$1.doInSqlMapClient(SqlMapClientTemplate.java:210)  
    at org.springframework.orm.ibatis.SqlMapClientTemplate.execute(SqlMapClientTemplate.java:168)  
    at org.springframework.orm.ibatis.SqlMapClientTemplate.queryForObject(SqlMapClientTemplate.java:208)  
    at com.framework.dao.impl.BaseDaoImpl.get(BaseDaoImpl.java:78)  
    at com.dao.TestChildDao.testGet(TestChildDao.java:96)  
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)  
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)  
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)  
    at java.lang.reflect.Method.invoke(Method.java:324)  
    at junit.framework.TestCase.runTest(TestCase.java:154)  
    at junit.framework.TestCase.runBare(TestCase.java:127)  
    at junit.framework.TestResult$1.protect(TestResult.java:106)  
    at junit.framework.TestResult.runProtected(TestResult.java:124)  
    at junit.framework.TestResult.run(TestResult.java:109)  
    at junit.framework.TestCase.run(TestCase.java:118)  
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:478)  
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:344)  
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:196)  
Caused by: net.sf.cglib.core.CodeGenerationException: net.sf.cglib.proxy.UndeclaredThrowableException-->java.lang.IllegalAccessException-->Class com.ibatis.sqlmap.engine.mapping.result.loader.EnhancedLazyResultLoader$EnhancedLazyResultLoaderImpl can not access a member of class com.domain.base.BaseParent with modifiers "protected" 
    at net.sf.cglib.core.ReflectUtils.newInstance(ReflectUtils.java:235)  
    at net.sf.cglib.core.ReflectUtils.newInstance(ReflectUtils.java:220)  
    at net.sf.cglib.core.ReflectUtils.newInstance(ReflectUtils.java:216)  
    at net.sf.cglib.proxy.Enhancer.createUsingReflection(Enhancer.java:566)  
    at net.sf.cglib.proxy.Enhancer.firstInstance(Enhancer.java:493)  
    at net.sf.cglib.core.AbstractClassGenerator.create(AbstractClassGenerator.java:220)  
    at net.sf.cglib.proxy.Enhancer.createHelper(Enhancer.java:368)  
    at net.sf.cglib.proxy.Enhancer.create(Enhancer.java:280)  
    at net.sf.cglib.proxy.Enhancer.create(Enhancer.java:581)  
    at com.ibatis.sqlmap.engine.mapping.result.loader.EnhancedLazyResultLoader$EnhancedLazyResultLoaderImpl.loadResult(EnhancedLazyResultLoader.java:104)  
    at com.ibatis.sqlmap.engine.mapping.result.loader.EnhancedLazyResultLoader.loadResult(EnhancedLazyResultLoader.java:59)  
    at com.ibatis.sqlmap.engine.mapping.result.loader.ResultLoader.loadResult(ResultLoader.java:53)  
    at com.ibatis.sqlmap.engine.mapping.result.BasicResultMap.getNestedSelectMappingValue(BasicResultMap.java:504)  
    at com.ibatis.sqlmap.engine.mapping.result.BasicResultMap.getResults(BasicResultMap.java:340)  
    at com.ibatis.sqlmap.engine.execution.SqlExecutor.handleResults(SqlExecutor.java:375)  
    at com.ibatis.sqlmap.engine.execution.SqlExecutor.handleMultipleResults(SqlExecutor.java:295)  
    at com.ibatis.sqlmap.engine.execution.SqlExecutor.executeQuery(SqlExecutor.java:186)  
    at com.ibatis.sqlmap.engine.mapping.statement.GeneralStatement.sqlExecuteQuery(GeneralStatement.java:205)  
    at com.ibatis.sqlmap.engine.mapping.statement.GeneralStatement.executeQueryWithCallback(GeneralStatement.java:173)  
    ... 22 more  
Caused by: net.sf.cglib.proxy.UndeclaredThrowableException: java.lang.IllegalAccessException-->Class com.ibatis.sqlmap.engine.mapping.result.loader.EnhancedLazyResultLoader$EnhancedLazyResultLoaderImpl can not access a member of class com.domain.base.BaseParent with modifiers "protected" 
    at com.domain.Parent$$EnhancerByCGLIB$$e337ec8b.initialize(<generated>)  
    at com.domain.base.BaseParent.<init>(BaseParent.java:22)  
    at com.domain.Parent.<init>(Parent.java:18)  
    at com.domain.Parent$$EnhancerByCGLIB$$e337ec8b.<init>(<generated>)  
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)  
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)  
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)  
    at java.lang.reflect.Constructor.newInstance(Constructor.java:274)  
    at net.sf.cglib.core.ReflectUtils.newInstance(ReflectUtils.java:228)  
    ... 40 more  
Caused by: java.lang.IllegalAccessException: Class com.ibatis.sqlmap.engine.mapping.result.loader.EnhancedLazyResultLoader$EnhancedLazyResultLoaderImpl can not access a member of class com.domain.base.BaseParent with modifiers "protected" 
    at sun.reflect.Reflection.ensureMemberAccess(Reflection.java:57)  
    at java.lang.reflect.Method.invoke(Method.java:317)  
    at com.ibatis.sqlmap.engine.mapping.result.loader.EnhancedLazyResultLoader$EnhancedLazyResultLoaderImpl.invoke(EnhancedLazyResultLoader.java:116)  
    ... 49 more  
 
Caused by:   
net.sf.cglib.core.CodeGenerationException: net.sf.cglib.proxy.UndeclaredThrowableException-->java.lang.IllegalAccessException-->Class com.ibatis.sqlmap.engine.mapping.result.loader.EnhancedLazyResultLoader$EnhancedLazyResultLoaderImpl can not access a member of class com.domain.base.BaseParent with modifiers "protected" 
    at net.sf.cglib.core.ReflectUtils.newInstance(ReflectUtils.java:235)  
    at net.sf.cglib.core.ReflectUtils.newInstance(ReflectUtils.java:220)  
    at net.sf.cglib.core.ReflectUtils.newInstance(ReflectUtils.java:216)  
    at net.sf.cglib.proxy.Enhancer.createUsingReflection(Enhancer.java:566)  
    at net.sf.cglib.proxy.Enhancer.firstInstance(Enhancer.java:493)  
    at net.sf.cglib.core.AbstractClassGenerator.create(AbstractClassGenerator.java:220)  
    at net.sf.cglib.proxy.Enhancer.createHelper(Enhancer.java:368)  
    at net.sf.cglib.proxy.Enhancer.create(Enhancer.java:280)  
    at net.sf.cglib.proxy.Enhancer.create(Enhancer.java:581)  
    at com.ibatis.sqlmap.engine.mapping.result.loader.EnhancedLazyResultLoader$EnhancedLazyResultLoaderImpl.loadResult(EnhancedLazyResultLoader.java:104)  
    at com.ibatis.sqlmap.engine.mapping.result.loader.EnhancedLazyResultLoader.loadResult(EnhancedLazyResultLoader.java:59)  
    at com.ibatis.sqlmap.engine.mapping.result.loader.ResultLoader.loadResult(ResultLoader.java:53)  
    at com.ibatis.sqlmap.engine.mapping.result.BasicResultMap.getNestedSelectMappingValue(BasicResultMap.java:504)  
    at com.ibatis.sqlmap.engine.mapping.result.BasicResultMap.getResults(BasicResultMap.java:340)  
    at com.ibatis.sqlmap.engine.execution.SqlExecutor.handleResults(SqlExecutor.java:375)  
    at com.ibatis.sqlmap.engine.execution.SqlExecutor.handleMultipleResults(SqlExecutor.java:295)  
    at com.ibatis.sqlmap.engine.execution.SqlExecutor.executeQuery(SqlExecutor.java:186)  
    at com.ibatis.sqlmap.engine.mapping.statement.GeneralStatement.sqlExecuteQuery(GeneralStatement.java:205)  
    at com.ibatis.sqlmap.engine.mapping.statement.GeneralStatement.executeQueryWithCallback(GeneralStatement.java:173)  
    at com.ibatis.sqlmap.engine.mapping.statement.GeneralStatement.executeQueryForObject(GeneralStatement.java:104)  
    at com.ibatis.sqlmap.engine.impl.SqlMapExecutorDelegate.queryForObject(SqlMapExecutorDelegate.java:565)  
    at com.ibatis.sqlmap.engine.impl.SqlMapExecutorDelegate.queryForObject(SqlMapExecutorDelegate.java:540)  
    at com.ibatis.sqlmap.engine.impl.SqlMapSessionImpl.queryForObject(SqlMapSessionImpl.java:106)  
    at org.springframework.orm.ibatis.SqlMapClientTemplate$1.doInSqlMapClient(SqlMapClientTemplate.java:210)  
    at org.springframework.orm.ibatis.SqlMapClientTemplate.execute(SqlMapClientTemplate.java:168)  
    at org.springframework.orm.ibatis.SqlMapClientTemplate.queryForObject(SqlMapClientTemplate.java:208)  
    at com.framework.dao.impl.BaseDaoImpl.get(BaseDaoImpl.java:78)  
    at com.dao.TestChildDao.testGet(TestChildDao.java:96)  
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)  
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)  
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)  
    at java.lang.reflect.Method.invoke(Method.java:324)  
    at junit.framework.TestCase.runTest(TestCase.java:154)  
    at junit.framework.TestCase.runBare(TestCase.java:127)  
    at junit.framework.TestResult$1.protect(TestResult.java:106)  
    at junit.framework.TestResult.runProtected(TestResult.java:124)  
    at junit.framework.TestResult.run(TestResult.java:109)  
    at junit.framework.TestCase.run(TestCase.java:118)  
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:478)  
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:344)  
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:196)  
Caused by: net.sf.cglib.proxy.UndeclaredThrowableException: java.lang.IllegalAccessException-->Class com.ibatis.sqlmap.engine.mapping.result.loader.EnhancedLazyResultLoader$EnhancedLazyResultLoaderImpl can not access a member of class com.domain.base.BaseParent with modifiers "protected" 
    at com.domain.Parent$$EnhancerByCGLIB$$e337ec8b.initialize(<generated>)  
    at com.domain.base.BaseParent.<init>(BaseParent.java:22)  
    at com.domain.Parent.<init>(Parent.java:18)  
    at com.domain.Parent$$EnhancerByCGLIB$$e337ec8b.<init>(<generated>)  
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)  
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)  
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)  
    at java.lang.reflect.Constructor.newInstance(Constructor.java:274)  
    at net.sf.cglib.core.ReflectUtils.newInstance(ReflectUtils.java:228)  
    ... 40 more  
Caused by: java.lang.IllegalAccessException: Class com.ibatis.sqlmap.engine.mapping.result.loader.EnhancedLazyResultLoader$EnhancedLazyResultLoaderImpl can not access a member of class com.domain.base.BaseParent with modifiers "protected" 
    at sun.reflect.Reflection.ensureMemberAccess(Reflection.java:57)  
    at java.lang.reflect.Method.invoke(Method.java:317)  
    at com.ibatis.sqlmap.engine.mapping.result.loader.EnhancedLazyResultLoader$EnhancedLazyResultLoaderImpl.invoke(EnhancedLazyResultLoader.java:116)  
    ... 49 more