/**
* INTERNAL: Get the appropriate attribute value from the object and put it in the appropriate
* field of the database row. Loop through the reference objects and extract the primary keys and
* put them in the vector of "nested" rows.
*/
public void writeFromObjectIntoRow(Object object, AbstractRecord row, AbstractSession session) {
if (!isForeignKeyRelationship) {
return;
}
if (((getSourceForeignKeysToTargetKeys()) == null)
|| (getSourceForeignKeysToTargetKeys().size() == 0)) {
return;
}
if (this.isReadOnly()) {
return;
}
AbstractRecord referenceRow =
this.getIndirectionPolicy().extractReferenceRow(this.getAttributeValueFromObject(object));
if (referenceRow != null) {
// the reference objects have not been instantiated - use the value from the original row
if (getForeignKeyGroupingElement() != null) {
row.put(
this.getForeignKeyGroupingElement(),
referenceRow.getValues(this.getForeignKeyGroupingElement()));
} else if (getSourceForeignKeyFields().size() > 0) {
DatabaseField foreignKeyField = (DatabaseField) getSourceForeignKeyFields().get(0);
row.put(foreignKeyField, referenceRow.getValues(foreignKeyField));
}
return;
}
ContainerPolicy cp = this.getContainerPolicy();
// extract the keys from the objects
Object attributeValue = this.getRealCollectionAttributeValueFromObject(object, session);
Vector nestedRows = new Vector(cp.sizeFor(attributeValue));
if (getForeignKeyGroupingElement() != null) {
for (Object iter = cp.iteratorFor(attributeValue); cp.hasNext(iter); ) {
XMLRecord nestedRow =
this.extractKeyRowFromReferenceObject(cp.next(iter, session), session, (XMLRecord) row);
nestedRows.addElement(nestedRow);
}
row.add(this.getForeignKeyGroupingElement(), nestedRows);
} else {
DatabaseField singleField = (DatabaseField) getSourceForeignKeyFields().get(0);
DatabaseField pkField = (DatabaseField) getSourceForeignKeysToTargetKeys().get(singleField);
for (Object iter = cp.iteratorFor(attributeValue); cp.hasNext(iter); ) {
Object singleValue =
getReferenceDescriptor()
.getObjectBuilder()
.extractValueFromObjectForField(cp.next(iter, session), pkField, session);
row.add(singleField, singleValue);
}
}
}
