ass="colFirst" scope="row"><a href="ColumnName.html" title="class in hydra.ext.relationalModel">ColumnName</a></th>
<td class="colLast">
<div class="block">A name for a domain which serves to identify the role played by that domain in the given relation; a 'role name' in Codd</div>
</td>
</tr>
<tr class="rowColor">
<th class="colFirst" scope="row"><a href="ColumnSchema.html" title="class in hydra.ext.relationalModel">ColumnSchema</a>&lt;T&gt;</th>
<td class="colLast">
<div class="block">An abstract specific