private void exportRelations(long id) {
U.encode(relations.size(), SER_HELPER);
for (Entry<String, RWRelation> rel : relations.entrySet()) {
U.encode(rel.getKey(), SER_HELPER);
long[] links = rel.getValue().linksFrom(id).toArray();
U.encode(links.length, SER_HELPER);
for (long link : links) {
U.encode(link, SER_HELPER);
}
}
}
private void exportColumns(long id) {
IdAddress address = ids.get(id);
boolean exportTableData = address != null;
U.encode(exportTableData, SER_HELPER);
if (exportTableData) {
TableInternals<?> table = (TableInternals<?>) address.table;
PropertyInfo[] props = table.props();
U.encode(table.getClazz().getCanonicalName(), SER_HELPER);
U.encode(props.length, SER_HELPER);
for (PropertyInfo prop : props) {
String colName = prop.getName();
Object colVal = prop.getColumn().get(address.row);
U.encode(colName, SER_HELPER);
U.encode(colVal, SER_HELPER);
}
}
}
@Test
public void shouldPersistToFileMini() throws IOException, TransactionException {
Db db = Ohm.db(DB_FILE);
Table<Person> table = db.table(Person.class);
assert 0 == table.insert(person("a", 100));
assert 1 == table.insert(person("b", 200));
db.shutdown();
/** * READ DB 2 ** */
Db db2 = Ohm.db(DB_FILE);
Table<Person> table2 = db2.table(Person.class);
Transaction txx = db2.startTransaction();
eq(table2.size(), 2);
System.out.println("now delete...");
table2.delete(1);
eq(table2.size(), 1);
txx.commit();
Transaction txx2 = db2.startTransaction();
System.out.println("now set name");
table2.set(0, "name", "z");
txx2.commit();
db2.shutdown();
/** * READ DB 3 ** */
U.sleep(1000);
System.out.println("=============================");
Db db3 = Ohm.db(DB_FILE);
Table<Person> table3 = db3.table(Person.class);
eq(table3.size(), 1);
}
private Object decode() {
Object val = U.decode(SER_HELPER);
// System.out.println("DECODE " + val);
return val;
}
@Override
public void update(Object entity) {
long id = U.getId(entity);
IdAddress address = address(id);
((TableInternals<?>) address.table).updateObj(entity);
}