/** INTERNAL: Write fields needed for insert into the template for with null values. */
public void writeInsertFieldsIntoRow(AbstractRecord row, AbstractSession session) {
if (isForeignKeyRelationship() && !isReadOnly()) {
if (getForeignKeyGroupingElement() != null) {
row.put(getForeignKeyGroupingElement(), null);
} else if (this.getSourceForeignKeyFields().size() > 0) {
row.put(getSourceForeignKeyFields().get(0), null);
}
} else {
super.writeInsertFieldsIntoRow(row, session);
}
}
/**
* 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);
}
}
}
/**
* INTERNAL: This row is built for shallow insert which happens in case of bidirectional inserts.
* The foreign keys must be set to null to avoid constraints.
*/
public void writeFromObjectIntoRowForShallowInsertWithChangeRecord(
ChangeRecord changeRecord, AbstractRecord row, AbstractSession session) {
if (isForeignKeyRelationship() && !isReadOnly()) {
if (getForeignKeyGroupingElement() != null) {
row.put(getForeignKeyGroupingElement(), null);
} else if (this.getSourceForeignKeyFields().size() > 0) {
row.put(getSourceForeignKeyFields().get(0), null);
}
} else {
super.writeFromObjectIntoRowForShallowInsertWithChangeRecord(changeRecord, row, session);
}
}
/** INTERNAL: Get a value from the object and set that in the respective field of the row. */
protected void writeFromNullObjectIntoRow(AbstractRecord record) {
if (isReadOnly()) {
return;
}
if (isForeignKeyRelationship()) {
Enumeration foreignKeys = getForeignKeyFields().elements();
while (foreignKeys.hasMoreElements()) {
record.put((DatabaseField) foreignKeys.nextElement(), null);
}
}
if (getTypeField() != null) {
record.put(getTypeField(), null);
}
}
/** INTERNAL: Write fields needed for insert into the template for with null values. */
public void writeInsertFieldsIntoRow(AbstractRecord record, AbstractSession session) {
if (isReadOnly()) {
return;
}
record.put(getField(), null);
}
/**
* INTERNAL: This row is built for shallow insert which happens in case of bidirectional inserts.
* The foreign keys must be set to null to avoid constraints.
*/
public void writeFromObjectIntoRowForShallowInsertWithChangeRecord(
ChangeRecord changeRecord, AbstractRecord record, AbstractSession session) {
if (isReadOnly()) {
return;
}
record.put(getField(), null);
}
/** INTERNAL: Get a value from the object and set that in the respective field of the row. */
@Override
public void writeFromObjectIntoRowForWhereClause(
ObjectLevelModifyQuery query, AbstractRecord record) {
if (isReadOnly()) {
return;
}
Object object;
if (query.isDeleteObjectQuery()) {
object = query.getObject();
} else {
object = query.getBackupClone();
}
Object referenceObject = getRealAttributeValueFromObject(object, query.getSession());
if (referenceObject == null) {
writeFromNullObjectIntoRow(record);
} else {
if (isForeignKeyRelationship()) {
Enumeration sourceFields = getForeignKeyFields().elements();
ClassDescriptor descriptor = query.getSession().getDescriptor(referenceObject.getClass());
while (sourceFields.hasMoreElements()) {
DatabaseField sourceKey = (DatabaseField) sourceFields.nextElement();
String targetQueryKey = (String) getSourceToTargetQueryKeyNames().get(sourceKey);
DatabaseField targetKeyField =
descriptor.getObjectBuilder().getFieldForQueryKeyName(targetQueryKey);
if (targetKeyField == null) {
throw DescriptorException.variableOneToOneMappingIsNotDefinedProperly(
this, descriptor, targetQueryKey);
}
Object referenceValue =
descriptor
.getObjectBuilder()
.extractValueFromObjectForField(
referenceObject, targetKeyField, query.getSession());
record.put(sourceKey, referenceValue);
}
}
if (getTypeField() != null) {
record.put(getTypeField(), getTypeForImplementor(referenceObject.getClass()));
}
}
}
/** INTERNAL: Get a value from the object and set that in the respective field of the row. */
public void writeFromObjectIntoRow(
Object object, AbstractRecord record, AbstractSession session) {
if (isReadOnly()) {
return;
}
Object referenceObject = getRealAttributeValueFromObject(object, session);
if (referenceObject == null) {
// Fix for 2730536, must put something in modify row, even if it is null.
record.put(getField(), null);
return;
}
Ref ref =
((ObjectRelationalDataTypeDescriptor) getReferenceDescriptor())
.getRef(referenceObject, session);
record.put(getField(), ref);
}
/**
* INTERNAL: Get a value from the object and set that in the respective field of the row. If the
* mapping id target foreign key, you must only write the type into the roe, the rest will be
* updated when the object itself is written
*/
@Override
public void writeFromObjectIntoRowWithChangeRecord(
ChangeRecord changeRecord, AbstractRecord record, AbstractSession session) {
if (isReadOnly()) {
return;
}
ObjectChangeSet changeSet =
(ObjectChangeSet) ((ObjectReferenceChangeRecord) changeRecord).getNewValue();
if (changeSet == null) {
writeFromNullObjectIntoRow(record);
} else {
Object referenceObject = changeSet.getUnitOfWorkClone();
if (isForeignKeyRelationship()) {
Enumeration sourceFields = getForeignKeyFields().elements();
ClassDescriptor descriptor = session.getDescriptor(referenceObject.getClass());
while (sourceFields.hasMoreElements()) {
DatabaseField sourceKey = (DatabaseField) sourceFields.nextElement();
String targetQueryKey = (String) getSourceToTargetQueryKeyNames().get(sourceKey);
DatabaseField targetKeyField =
descriptor.getObjectBuilder().getFieldForQueryKeyName(targetQueryKey);
if (targetKeyField == null) {
throw DescriptorException.variableOneToOneMappingIsNotDefinedProperly(
this, descriptor, targetQueryKey);
}
Object referenceValue =
descriptor
.getObjectBuilder()
.extractValueFromObjectForField(referenceObject, targetKeyField, session);
record.put(sourceKey, referenceValue);
}
}
if (getTypeField() != null) {
record.put(getTypeField(), getTypeForImplementor(referenceObject.getClass()));
}
}
}
/** INTERNAL: Get a value from the object and set that in the respective field of the row. */
public void writeFromObjectIntoRowWithChangeRecord(
ChangeRecord changeRecord, AbstractRecord record, AbstractSession session) {
if (isReadOnly()) {
return;
}
ObjectChangeSet changeSet =
(ObjectChangeSet) ((ObjectReferenceChangeRecord) changeRecord).getNewValue();
Object referenceObject = changeSet.getUnitOfWorkClone();
if (referenceObject == null) {
return;
}
Ref ref =
((ObjectRelationalDataTypeDescriptor) getReferenceDescriptor())
.getRef(referenceObject, session);
record.put(getField(), ref);
}
