hello,

can we have a composite id composed of two other composite ids?

like:

<composite-id name="id" class="objects.edgeID">
<key-many-to-one name="SRC_NODE_ID" class="objects.nodeID">
<column name="SRC_NODE_ID"/>
<column name="SRC_GRAPH_ID"/>
</key-many-to-one>
<key-many-to-one name="DST_NODE_ID" class="objects.nodeID">
<column name="DST_NODE_ID"/>
<column name="DST_GRAPH_ID"/>
</key-many-to-one>
</composite-id>

I have an edge object with a composite id of edgeID. this edgeID is composed of two other nodeID objects, where nodeID is also composite key for object node.

with the above mapping I get the error:

An association from the table EDGES refers to an unmapped class: objects.nodeID

objects.node.ID is unmapped but from node.hbm.xml:

<class name="objects.node" table="NODES">

<composite-id name="id" class="objects.nodeID">
<key-property name="GRAPH_ID" type="java.lang.Integer">
<column name="GRAPH_ID" not-null="true" />
</key-property>
<key-property name="SURROGATE_ID" type="java.lang.Long">
<column name="SURROGATE_ID" not-null="true" />
</key-property>
</composite-id>

how am i supposed to do this? am i supposed to create a mapping for the nodeID class?

thanks,
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