private void merge(Row row) {
ArrayList<Parameter> k = update.getParameters();
for (int i = 0; i < columns.length; i++) {
Column col = columns[i];
Value v = row.getValue(col.getColumnId());
Parameter p = k.get(i);
p.setValue(v);
}
for (int i = 0; i < keys.length; i++) {
Column col = keys[i];
Value v = row.getValue(col.getColumnId());
if (v == null) {
throw DbException.get(ErrorCode.COLUMN_CONTAINS_NULL_VALUES_1, col.getSQL());
}
Parameter p = k.get(columns.length + i);
p.setValue(v);
}
int count = update.update();
if (count == 0) {
try {
table.validateConvertUpdateSequence(session, row);
boolean done = table.fireBeforeRow(session, null, row);
if (!done) {
table.lock(session, true, false);
table.addRow(session, row);
session.log(table, UndoLogRecord.INSERT, row);
table.fireAfterRow(session, null, row, false);
}
} catch (DbException e) {
if (e.getErrorCode() == ErrorCode.DUPLICATE_KEY_1) {
// possibly a concurrent merge or insert
Index index = (Index) e.getSource();
if (index != null) {
// verify the index columns match the key
Column[] indexColumns = index.getColumns();
boolean indexMatchesKeys = false;
if (indexColumns.length <= keys.length) {
for (int i = 0; i < indexColumns.length; i++) {
if (indexColumns[i] != keys[i]) {
indexMatchesKeys = false;
break;
}
}
}
if (indexMatchesKeys) {
throw DbException.get(ErrorCode.CONCURRENT_UPDATE_1, table.getName());
}
}
}
throw e;
}
} else if (count != 1) {
throw DbException.get(ErrorCode.DUPLICATE_KEY_1, table.getSQL());
}
}
