org.hibernate.PropertyAccessException

[pankaj semwal]

I have one to many relationship between screen and screenacess.
My hbm files are

<hibernate-mapping>
    <class name="com.Semwal.ScreenTb" table="SCREEN_TB" schema="SYSTEM"  >
        <composite-id>
            <key-property name="screenCmpnNo" type="java.lang.String">
                <column name="SCREEN_CMPN_NO" length="1" />
            </key-property>
            <key-property name="screenCorpNo" type="java.lang.String">
                <column name="SCREEN_CORP_NO" length="5" />
            </key-property>
            <key-property name="screenFileName" type="java.lang.String">
                <column name="SCREEN_FILE_NAME" length="10" />
            </key-property>
        </composite-id>
        <property name="screenCrteTime" type="java.util.Date">
            <column name="SCREEN_CRTE_TIME" length="7" />
        </property>
        <property name="screenEmpNo" type="java.lang.String">
            <column name="SCREEN_EMP_NO" length="1" />
        </property>
        <set name="accessTbs"  cascade="all"  inverse="true">
            <key>
                <column name="ACESS_CMPN_NO" length="1" not-null="true" />
                <column name="ACESS_CORP_NO" length="5" not-null="true" />
                <column name="ACESS_FILE_NAME" length="10" not-null="true" />
            </key>
            <one-to-many class="com.Semwal.AccessTb" />
        </set>
    </class>
</hibernate-mapping>

<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<!-- 
    Mapping file autogenerated by MyEclipse Persistence Tools
-->
<hibernate-mapping>
    <class name="com.Semwal.AccessTb" table="ACCESS_TB" schema="SYSTEM">
        <composite-id>
            
               <key-property name="ACESS_CMPN_NO" length="1" />
                <key-property name="ACESS_CORP_NO" length="5" />
                <key-property name="ACESS_FILE_NAME" length="10" />
                <key-property name="ACESS_EMP_NAME" length="10" />
             
        </composite-id>
        <property name="ACESS_CRTE_DTIME" type="java.util.Date">
            <column name="ACESS_CRTE_DTIME" length="7" />
        </property>
        <property name="ACESS_EMP_NO" type="java.lang.String">
            <column name="ACESS_EMP_NO" length="10" />
        </property>
    </class>
</hibernate-mapping>

screen.java

public class ScreenTb implements java.io.Serializable {

	// Fields

	private String screenCmpnNo;
	private String screenCorpNo;
	private String screenFileName;
	private Date screenCrteTime;
	private String screenEmpNo;
	private Set accessTbs = new HashSet(0);

	// Constructors

	/** default constructor */
	public ScreenTb() {
	}

	public String getScreenCmpnNo() {
		return screenCmpnNo;
	}

	public void setScreenCmpnNo(String screenCmpnNo) {
		this.screenCmpnNo = screenCmpnNo;
	}

	public String getScreenCorpNo() {
		return screenCorpNo;
	}

	public void setScreenCorpNo(String screenCorpNo) {
		this.screenCorpNo = screenCorpNo;
	}

	public String getScreenFileName() {
		return screenFileName;
	}

	public void setScreenFileName(String screenFileName) {
		this.screenFileName = screenFileName;
	}

	 

	public Date getScreenCrteTime() {
		return this.screenCrteTime;
	}

	public void setScreenCrteTime(Date screenCrteTime) {
		this.screenCrteTime = screenCrteTime;
	}

	public String getScreenEmpNo() {
		return this.screenEmpNo;
	}

	public void setScreenEmpNo(String screenEmpNo) {
		this.screenEmpNo = screenEmpNo;
	}

	public Set getAccessTbs() {
		return this.accessTbs;
	}

	public void setAccessTbs(Set accessTbs) {
		this.accessTbs = accessTbs;
	}

}

ScreenAcess.java

package com.Semwal;

import java.sql.Timestamp;
import java.util.Date;

/**
 * AccessTb entity. @author MyEclipse Persistence Tools
 */

public class AccessTb implements java.io.Serializable {

	// Fields

	private ScreenTb screenTb;
	private String ACESS_CMPN_NO;
	private String  ACESS_CORP_NO;
	private String  ACESS_FILE_NAME;	  
	public String getACESS_CMPN_NO() {
		return ACESS_CMPN_NO;
	}


	public void setACESS_CMPN_NO(String aCESSCMPNNO) {
		ACESS_CMPN_NO = aCESSCMPNNO;
	}


	public String getACESS_CORP_NO() {
		return ACESS_CORP_NO;
	}


	public void setACESS_CORP_NO(String aCESSCORPNO) {
		ACESS_CORP_NO = aCESSCORPNO;
	}


	public String getACESS_FILE_NAME() {
		return ACESS_FILE_NAME;
	}


	public void setACESS_FILE_NAME(String aCESSFILENAME) {
		ACESS_FILE_NAME = aCESSFILENAME;
	}

	private String ACESS_EMP_NAME;
	private Timestamp ACESS_CRTE_DTIME;
	public String getACESS_EMP_NAME() {
		return ACESS_EMP_NAME;
	}


	public void setACESS_EMP_NAME(String aCESSEMPNAME) {
		ACESS_EMP_NAME = aCESSEMPNAME;
	}


	public Timestamp getACESS_CRTE_DTIME() {
		return ACESS_CRTE_DTIME;
	}


	public void setACESS_CRTE_DTIME(Timestamp aCESSCRTEDTIME) {
		ACESS_CRTE_DTIME = aCESSCRTEDTIME;
	}


	public String getACESS_EMP_NO() {
		return ACESS_EMP_NO;
	}


	public void setACESS_EMP_NO(String aCESSEMPNO) {
		ACESS_EMP_NO = aCESSEMPNO;
	}

	private String ACESS_EMP_NO;

	 }

And i am calling like this

public class SClient {

	public static void main(String[] args) {
		
		ApplicationContext appContext = new ClassPathXmlApplicationContext(
				new String[] { "applicationContext.xml" });
		
		RoRegister rr = appContext.getBean("roRegi", RoRegister.class);
	 
		 ScreenTb screenTb=new ScreenTb();
		 screenTb.setScreenCmpnNo("H");
		 screenTb.setScreenCorpNo("A10AA");
		 screenTb.setScreenFileName("/modulee/");
		 screenTb.setScreenEmpNo("1");
		 screenTb.setScreenCrteTime(new Timestamp(System.currentTimeMillis()));
	 	 screenTb.getAccessTbs().add("1");
		 screenTb.getAccessTbs().add("2");
		  
		
		  rr.save(screenTb);
		 
		 

    		
		
	}

}

But i am getting following excpetion:

Exception in thread "main" org.springframework.orm.hibernate3.HibernateSystemException: IllegalArgumentException occurred calling getter of com.Semwal.AccessTb.ACESS_CMPN_NO; nested exception is org.hibernate.PropertyAccessException: IllegalArgumentException occurred calling getter of com.Semwal.AccessTb.ACESS_CMPN_NO
	at org.springframework.orm.hibernate3.SessionFactoryUtils.convertHibernateAccessException(SessionFactoryUtils.java:679)
	at org.springframework.orm.hibernate3.HibernateAccessor.convertHibernateAccessException(HibernateAccessor.java:412)
	at org.springframework.orm.hibernate3.HibernateTemplate.doExecute(HibernateTemplate.java:411)
	at org.springframework.orm.hibernate3.HibernateTemplate.executeWithNativeSession(HibernateTemplate.java:374)
	at org.springframework.orm.hibernate3.HibernateTemplate.save(HibernateTemplate.java:683)
	at com.Semwal.RoRegister.save(RoRegister.java:14)
	at com.Semwal.SClient.main(SClient.java:47)
Caused by: org.hibernate.PropertyAccessException: IllegalArgumentException occurred calling getter of com.Semwal.AccessTb.ACESS_CMPN_NO
	at org.hibernate.property.BasicPropertyAccessor$BasicGetter.get(BasicPropertyAccessor.java:195)
	at org.hibernate.tuple.component.AbstractComponentTuplizer.getPropertyValue(AbstractComponentTuplizer.java:87)
	at org.hibernate.tuple.component.AbstractComponentTuplizer.getPropertyValues(AbstractComponentTuplizer.java:93)
	at org.hibernate.tuple.component.PojoComponentTuplizer.getPropertyValues(PojoComponentTuplizer.java:109)
	at org.hibernate.type.ComponentType.getPropertyValues(ComponentType.java:376)
	at org.hibernate.type.ComponentType.getHashCode(ComponentType.java:207)
	at org.hibernate.engine.EntityKey.generateHashCode(EntityKey.java:126)
	at org.hibernate.engine.EntityKey.<init>(EntityKey.java:70)
	at org.hibernate.engine.StatefulPersistenceContext.getDatabaseSnapshot(StatefulPersistenceContext.java:263)
	at org.hibernate.engine.ForeignKeys.isTransient(ForeignKeys.java:212)
	at org.hibernate.event.def.AbstractSaveEventListener.getEntityState(AbstractSaveEventListener.java:535)
	at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.performSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:103)
	at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.onSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:93)
	at org.hibernate.impl.SessionImpl.fireSaveOrUpdate(SessionImpl.java:535)
	at org.hibernate.impl.SessionImpl.saveOrUpdate(SessionImpl.java:527)
	at org.hibernate.engine.CascadingAction$5.cascade(CascadingAction.java:241)
	at org.hibernate.engine.Cascade.cascadeToOne(Cascade.java:292)
	at org.hibernate.engine.Cascade.cascadeAssociation(Cascade.java:240)
	at org.hibernate.engine.Cascade.cascadeProperty(Cascade.java:193)
	at org.hibernate.engine.Cascade.cascadeCollectionElements(Cascade.java:320)
	at org.hibernate.engine.Cascade.cascadeCollection(Cascade.java:266)
	at org.hibernate.engine.Cascade.cascadeAssociation(Cascade.java:243)
	at org.hibernate.engine.Cascade.cascadeProperty(Cascade.java:193)
	at org.hibernate.engine.Cascade.cascade(Cascade.java:154)
	at org.hibernate.event.def.AbstractSaveEventListener.cascadeAfterSave(AbstractSaveEventListener.java:479)
	at org.hibernate.event.def.AbstractSaveEventListener.performSaveOrReplicate(AbstractSaveEventListener.java:357)
	at org.hibernate.event.def.AbstractSaveEventListener.performSave(AbstractSaveEventListener.java:204)
	at org.hibernate.event.def.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:144)
	at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.saveWithGeneratedOrRequestedId(DefaultSaveOrUpdateEventListener.java:210)
	at org.hibernate.event.def.DefaultSaveEventListener.saveWithGeneratedOrRequestedId(DefaultSaveEventListener.java:56)
	at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.entityIsTransient(DefaultSaveOrUpdateEventListener.java:195)
	at org.hibernate.event.def.DefaultSaveEventListener.performSaveOrUpdate(DefaultSaveEventListener.java:50)
	at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.onSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:93)
	at org.hibernate.impl.SessionImpl.fireSave(SessionImpl.java:563)
	at org.hibernate.impl.SessionImpl.save(SessionImpl.java:551)
	at org.hibernate.impl.SessionImpl.save(SessionImpl.java:547)
	at org.springframework.orm.hibernate3.HibernateTemplate$12.doInHibernate(HibernateTemplate.java:686)
	at org.springframework.orm.hibernate3.HibernateTemplate$12.doInHibernate(HibernateTemplate.java:1)
	at org.springframework.orm.hibernate3.HibernateTemplate.doExecute(HibernateTemplate.java:406)
	... 4 more
Caused by: java.lang.IllegalArgumentException: object is not an instance of declaring class
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at org.hibernate.property.BasicPropertyAccessor$BasicGetter.get(BasicPropertyAccessor.java:169)
	... 42 more

Please tell me where i am wrong.

Thanks

[Reddy Prashanth]

In your mapping file, ScreenTb class has a one-to-many relation with AccessTb class. But in the SClient.java, you are trying to save string objects in the set instead of
"AccessTb"

When you save screenTB, hibernate also will try to save accessTbs colleaction (cascade effect). But it will fail because , the collection contains Strings instead of our mapped entities (AcccessTb). Try to add AccessTB objects to the set and see.