@Test
public void testLoadSave() throws IOException {
Database db = new Database("test", "test.dbl");
Table t1 = new Table("tname");
t1.addColumn("A", CharField.class);
t1.addColumn("B", DateField.class);
Row r1 = t1.getRowSkeleton();
Calendar calendar = Calendar.getInstance();
calendar.set(70, 0, 0);
Date date = calendar.getTime();
r1.insert(1, Cell.makeCell(date));
r1.insert(0, Cell.makeCell("text0"));
t1.addRow(r1);
db.addTable(t1);
db.saveToStorage();
db = new Database("test", "test.dbl");
db.loadFromStorage();
db.loadFromStorage();
System.out.println(db);
System.out.println(t1);
assertTrue(db.getTable("tname").getHeader().equalsModel(t1.getHeader()));
assertTrue(db.getTable("tname").row(0).at(0).getStringData().equals("text0"));
assertEquals(
db.getTable("tname").row(0).at(1).getStringData(), Cell.makeCell(date).getStringData());
assertEquals(1, t1.size());
}
/* (non-Javadoc)
* @see org.rimudb.generic.binders.IIterativeResultSetBinder#initialize(org.rimudb.Database)
*/
public void initialize(Database database) throws RimuDBException {
tableList = new ArrayList<Table>();
for (int i = 0; i < dataObjectClasses.length; i++) {
tableList.add(database.getTable(dataObjectClasses[i]));
}
}
public DatabaseDiff(final Database fromDatabase, final Database toDatabase) {
this.fromDatabase = fromDatabase;
this.toDatabase = toDatabase;
final List<Table> addedTables = Lists.newArrayList();
final List<Table> identicalTables = Lists.newArrayList();
final List<Table> modifiedTables = Lists.newArrayList();
final List<Table> removedTables = Lists.newArrayList();
for (final String tableName : Sets.newTreeSet(fromDatabase.getTableNames())) {
final Table fromTable = fromDatabase.getTable(tableName);
final Table toTable = toDatabase.getTable(tableName);
if (fromTable.isEmpty() && toTable.isEmpty()) continue;
final Rows identicalRows = new Rows();
final Rows modifiedRows = new Rows();
final Rows removedRows = new Rows();
final Rows addedRows = toDatabase.find(tableName);
final Rows fromRows = fromDatabase.find(tableName);
for (final Row fromRow : fromRows) {
// Search by tables pkey values
final Rows toRows = toTable.find(fromRow);
if (toRows.isEmpty()) {
// Deleted
removedRows.add(fromRow);
continue;
}
// [EB]: this only happens when a table fails to specify a primary key column
if (toRows.size() > 1) {
throw new IllegalStateException("This cannot happen unless the schema is broken :(");
}
// Now look for the *exact* match in the 'to' Rows
final Rows record = toRows.find(fromRow);
if (!record.isEmpty()) {
// Identical
addedRows.remove(record.get(0));
identicalRows.add(record.get(0));
} else {
// Changed
final Row updatedRow = toTable.get(toRows.get(0));
final Row row = toTable.rowDiff(fromRow, updatedRow);
addedRows.remove(updatedRow);
modifiedRows.add(row);
}
}
if (!addedRows.isEmpty()) addedTables.add(new Table(fromTable, addedRows));
if (!modifiedRows.isEmpty()) modifiedTables.add(new Table(fromTable, modifiedRows));
if (!removedRows.isEmpty()) removedTables.add(new Table(fromTable, removedRows));
if (!identicalRows.isEmpty()) identicalTables.add(new Table(fromTable, identicalRows));
}
added = new Database(addedTables);
modified = new Database(modifiedTables);
removed = new Database(removedTables);
identical = new Database(identicalTables);
}