private void addRemoveItems(InfoForIndex<OWNER> info, CursorProxy<PROXY> cursor) {
List<PROXY> elementsToAdd = cursor.getElementsToAdd();
List<PROXY> elementsToRemove = cursor.getElementsToRemove();
for (PROXY p : elementsToAdd) {
translateToColumn(info, p);
}
elementsToAdd.clear();
for (PROXY p : elementsToRemove) {
RowToPersist row = info.getRow();
IndexData data = fetchIndexData(info, p);
row.addIndexToRemove(data);
}
elementsToRemove.clear();
}
private IndexData fetchIndexData(InfoForIndex<OWNER> info, PROXY value) {
RowToPersist row = info.getRow();
// Value is the Account.java or a Proxy of Account.java field and what we need to save in
// the database is the ID inside this Account.java object!!!!
byte[] byteVal = classMeta.convertEntityToId(value);
if (byteVal == null && value != null) {
// if value is not null but we get back a byteVal of null, it means the entity has not been
// initialized with a key yet, BUT this is required to be able to save this object
String owner = "'" + field.getDeclaringClass().getSimpleName() + "'";
String child = "'" + field.getType().getSimpleName() + "'";
String fieldName = "'" + field.getType().getSimpleName() + " " + field.getName() + "'";
throw new ChildWithNoPkException(
"The entity you are saving of type="
+ owner
+ " has a field="
+ fieldName
+ " that does not yet have a primary key so you cannot save it. To correct this\n"
+ "problem, you can either\n"
+ "1. SAVE the "
+ child
+ " BEFORE you save the "
+ owner
+ " OR\n"
+ "2. Call entityManager.fillInWithKey(Object entity), then SAVE your "
+ owner
+ "', then save your "
+ child
+ " NOTE that this"
+ "\nmethod #2 is used for when you have a bi-directional relationship where each is a child of the other");
}
byte[] key = info.getRow().getKey();
IndexData data = new IndexData();
String colFamily = getMetaDbo().getIndexTableName();
String rowKey = formRowKey(row.getKey());
data.setColumnFamilyName(colFamily);
data.setRowKey(rowKey);
IndexColumn indCol = data.getIndexColumn();
indCol.setIndexedValue(byteVal);
indCol.setPrimaryKey(key);
return data;
}
private void translateToColumn(InfoForIndex<OWNER> info, PROXY value) {
RowToPersist row = info.getRow();
IndexData data = fetchIndexData(info, value);
row.addIndexToPersist(data);
}