How to associate class without oid?

[Nobody/Anonymous]

Hi,Richard

     I don't use oid or guid.
     MyClass1 has two primary key.
     and MyClass2 has three primary key.

     example as:

MyClass1 :
key1 as string
key2 as string

MyClass2 :
key1 as string
key2 as string
key3 as string

<class name="MyClass1" table="TABLE1" database="Sample1">
<attribute name="KEY1" column="KEY1" key="primary" find="true"/>
<attribute name="KEY2" column="KEY2" key="primary" find="true"/>
<attribute name="CreatedDate" column="CREATEDDATE" timestamp="true"/>
<attribute name="ModifiedDate" column="MODIFIEDDATE" timestamp="true"/>
<attribute name="MyClass2s"/>
</class>
<class name="MyClass2" table="TABLE2" database="Sample1">
<attribute name="KEY1" column="KEY1" key="primary" find="true"/>
<attribute name="KEY2" column="KEY2" key="primary" find="true"/>
<attribute name="KEY3" column="KEY3" key="primary" find="true"/>
<attribute name="CreatedDate" column="CREATEDDATE" timestamp="true"/>
<attribute name="ModifiedDate" column="MODIFIEDDATE" timestamp="true"/>
<attribute name="Name" column="DESCRIPTION" proxy="true"/>
</class>

<association fromClass="MyClass1" toClass="MyClass2"
cardinality="oneToMany" target="MyClass2s"
retrieveAutomatic="true" deleteAutomatic="true" saveAutomatic="true" inverse="false">
<entry fromAttribute="?" toAttribute="?"/>
</association>

How can i do about association?
Thank you.
ANYA

[Richard Banks]

Hi Anya,

Firstly, Class1 will need attributes to reference to class2's key fields such as class2Key1, class2Key2, etc

Secondly in your association simply put multiple <entry /> entities such as

<association fromClass="MyClass1" toClass="MyClass2" 
cardinality="oneToMany" target="MyClass2s" 
retrieveAutomatic="true" deleteAutomatic="true" saveAutomatic="true" inverse="false">
<entry fromAttribute="class2Key1" toAttribute="KEY1"/>
<entry fromAttribute="class2Key2" toAttribute="KEY2"/>
<entry fromAttribute="class2Key3" toAttribute="KEY3"/>
</association>