public void delete(OpenJPAStateManager sm, JDBCStore store, RowManager rm) throws SQLException {
if (field.getMappedBy() != null) return;
// if nullable, null any existing inverse columns that refer to this obj
ValueMapping elem = field.getElementMapping();
ColumnIO io = elem.getColumnIO();
ForeignKey fk = elem.getForeignKey();
if (!elem.getUseClassCriteria() && io.isAnyUpdatable(fk, true)) {
assertInversable();
Row row = rm.getAllRows(fk.getTable(), Row.ACTION_UPDATE);
row.setForeignKey(fk, io, null);
row.whereForeignKey(fk, sm);
rm.flushAllRows(row);
return;
}
if (!sm.getLoaded().get(field.getIndex())) return;
// update fk on each field value row
ClassMapping rel = field.getElementMapping().getTypeMapping();
StoreContext ctx = store.getContext();
Collection objs = toCollection(sm.fetchObject(field.getIndex()));
if (objs != null && !objs.isEmpty())
for (Iterator itr = objs.iterator(); itr.hasNext(); )
updateInverse(ctx, itr.next(), rel, rm, sm, 0);
}
public void update(OpenJPAStateManager sm, JDBCStore store, RowManager rm) throws SQLException {
if (field.getMappedBy() != null && !_orderInsert && !_orderUpdate) return;
Object obj = sm.fetchObject(field.getIndex());
ChangeTracker ct = null;
if (obj instanceof Proxy) {
Proxy proxy = (Proxy) obj;
if (Proxies.isOwner(proxy, sm, field.getIndex())) ct = proxy.getChangeTracker();
}
Column order = field.getOrderColumn();
// if no fine-grained change tracking then just delete and reinsert
// if no fine-grained change tracking or if an item was removed
// from an ordered collection, delete and reinsert
if (ct == null || !ct.isTracking() || (order != null && !ct.getRemoved().isEmpty())) {
delete(sm, store, rm);
insert(sm, rm, obj);
return;
}
// null inverse columns for deletes and update them with our oid for
// inserts
ClassMapping rel = field.getElementMapping().getTypeMapping();
StoreContext ctx = store.getContext();
if (field.getMappedBy() == null) {
Collection rem = ct.getRemoved();
for (Iterator itr = rem.iterator(); itr.hasNext(); )
updateInverse(ctx, itr.next(), rel, rm, null, 0);
}
Collection add = ct.getAdded();
int seq = ct.getNextSequence();
for (Iterator itr = add.iterator(); itr.hasNext(); seq++)
updateInverse(ctx, itr.next(), rel, rm, sm, seq);
if (order != null) ct.setNextSequence(seq);
}
public void insert(OpenJPAStateManager sm, JDBCStore store, RowManager rm) throws SQLException {
if (field.getMappedBy() == null || _orderInsert || _orderUpdate)
insert(sm, rm, sm.fetchObject(field.getIndex()));
}
