I have a table
trait_dictionary_mst which has
crop_id,crop_name,user_id fields

and there is another table trait_dictionary_dtl which has
crop_id,trait_name,trait_value,upperlimit,lowerlimit,trait_desc,default_value,trait_order

crop_id in trait_dictionary_dtl has foreign key reference in crop_id in trait_dictionary_mst
here is my hbm file for both tables
<hibernate-mapping>
<class name="TraitMaster" table="trait_dictionary_mst">
<id name="cropId" type="string">
<column name="CROP_ID" />
</id>
<property name="cropName" type="string" column="CROP_NAME" />
<bag name="traitDtls" lazy="true"
fetch="select">
<key>
<column name="CROP_ID"/>
</key>
<one-to-many class="org.hibernate.tutorial.domain.TraitDi" />
</bag>
</class>

</hibernate-mapping>

<hibernate-mapping package="org.hibernate.tutorial.domain">
<class name="TraitDi" table="trait_dictionary_dtl">
<id name="cropId" type="string">
<column name="CROP_ID" />
</id>
<property name="traitName" type="string" column="TRAIT_NAME"/>
<property name="traitValue" type="string" column="TRAIT_VALUE"/>
<property name="upperLImit" type="float" column="UPPERLIMIT"/>
<property name="lowerLImit" type="float" column="LOWERLIMIT"/>
<property name="traitDEsc" type="string" column="TRAIT_DESC"/>
<property name="defaultValue" type="string" column="DEFAULT_VALUE"/>
<property name="traitOrder" type="integer" column="TRAIT_ORDER"/>
</class>

</hibernate-mapping>

and java class for trait_dictionary_mst

public class TraitMaster {

private String cropId;
private String cropName;
private List<TraitDi> traitDtls;


public String getCropId() {
return cropId;
}
public void setCropId(String cropId) {
this.cropId = cropId;
}
public String getCropName() {
return cropName;
}
public void setCropName(String cropName) {
this.cropName = cropName;
}
public List<TraitDi> getTraitDtls() {
return traitDtls;
}
public void setTraitDtls(List<TraitDi> traitDtls) {
this.traitDtls = traitDtls;
}


}

so whenever is load the trait_dictionary_mst i should also get list of values of data from trait_dictionary_dtl

TraitMaster master = (TraitMaster) session.load(TraitMaster.class,
cropId);

List<TraitDi> list = master.getTraitDtls();
for (Iterator iterator = list.iterator(); iterator.hasNext();) {
TraitDi traitDi = (TraitDi) iterator.next();
System.out.println(traitDi.getTraitName());
System.out.println(traitDi.getUpperLImit());
}
am getting the values from db but am getting wrong data

data present in db
CROP_ID,TRAIT_NAME,TRAIT_VALUE,UPPERLIMIT,LOWERLIMIT,TRAIT_DESC,DEFAULT_VALUE,TRAIT_ORDER
Ri,ricetrait2,,250.00,10.00,Trait2 description,200.0,30
Ri,ricetrait3,t3val1,0.00,0.00,Trait3 description,t3val2,31
Ri,ricetrait3,t3val2,0.00,0.00,Trait3 description,t3val2,32
Ri,ricetrait3,t3val3,0.00,0.00,Trait3 description,t3val2,33
Ri,ricetrait1,,10.00,2.00,Trait1 description,5.0,37
Ri,hibernate1,,0.00,0.00,,,38
Ri,hibernate2,,0.00,0.00,,,38
Ri,hibernate3,,0.00,0.00,,,38
Ri,hibernate4,,0.00,0.00,,,38

as u can see i have 7 different traitname

when i run the java i get all trait names as ricetrait2

is this problem due to trait_dictionary_dtl has no primary key well i can even make any key as primary key
bcoz trait_name can be same as u see in above data and each trait may have trait_value or it my have upperlimit or lower limit please help me to resolve this problem.