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manual/docs/Mapping object relations - Composites and aggregates.php

-Doctrine supports aggregates and composites. When binding composites you can use methods Doctrine_Table::ownsOne() and Doctrine_Table::ownsMany(). When binding
-aggregates you can use methods Doctrine_Table::hasOne() and Doctrine_Table::hasMany().
+Doctrine supports aggregates and composites. When binding composites you can use methods Doctrine_Record::ownsOne() and Doctrine_Record::ownsMany(). When binding
+aggregates you can use methods Doctrine_Record::hasOne() and Doctrine_Record::hasMany(). Basically using the owns* methods is like adding a database level ON CASCADE DELETE
+constraint on related component with an exception that doctrine handles the deletion in application level.
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-In Doctrine if you bind an Email to a User using ownsOne or ownsMany methods, everytime User record calls save or delete the associated
-Email record is also saved/deleted.
+In Doctrine if you bind an Email to a User using ownsOne or ownsMany methods, everytime User record calls delete the associated
+Email record is also deleted.
 <br \><br \>
-Then again if you bind an Email to a User using hasOne or hasMany methods, everytime User record calls save or delete the associated
-Email record is NOT saved/deleted.
+Then again if you bind an Email to a User using hasOne or hasMany methods, everytime User record calls delete the associated
+Email record is NOT deleted.

manual/docs/Mapping object relations - Introduction.php

-In Doctrine all record relations are being set with hasMany, hasOne, ownsMany and ownsOne methods.
+In Doctrine all record relations are being set with hasMany, hasOne, ownsMany and ownsOne methods. Doctrine supports almost any kind of database relation
+from simple one-to-one foreign key relations to join table self-referencing relations.