<class name="ibbl.swift.bean.ProductInfoBean" table="T_PRODUCT_INFO">
<id name="oid" column="OID">
<generator class="assigned"/>
</id>

<property name="productId" column="PRODUCT_ID"/>
<property name="productBillId" column="PRODUCT_BILL_ID"/>
<property name="productNo" column="PRODUCT_NO"/>
<property name="brCode" column="BR_CODE"/>
<property name="productDate" column="PRODUCT_DATE"/>
<property name = "prodType" column="PRODUCT_TYPE"/>
</class>


public class ProductInfoBean
{
private String oid = null;
private String productId = null;
private String productBillId = null;
private String productNo = null;
private String brCode = null;
private Date productDate = null;
private int prodType;

public String getOid()
{
return oid;
}

public void setOid(String oid)
{
this.oid = oid;
}

public String getProductId()
{
return productId;
}

public void setProductId(String productId)
{
this.productId = productId;
}

public String getProductBillId()
{
return productBillId;
}

public void setProductBillId(String productBillId)
{
this.productBillId = productBillId;
}

public String getProductNo()
{
return productNo;
}

public void setProductNo(String productNo)
{
this.productNo = productNo;
}

public String getBrCode()
{
return brCode;
}

public void setBrCode(String brCode)
{
this.brCode = brCode;
}

public Date getProductDate()
{
return productDate;
}

public void setProductDate(Date productDate)
{
this.productDate = productDate;
}

public int getProdType()
{
return prodType;
}

public void setProdType(int prodType)
{
this.prodType = prodType;
}
}

single row add successfully but through exception at multiple row

org.hibernate.HibernateException: identifier of an instance of ibbl.swift.bean.ProductInfoBean was altered from 110009000000 to 110009000004