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());
}
}
@Override
public void add(Session session, Row row) {
StatementBuilder sql = new StatementBuilder("insert into ");
sql.append(getName()).append("(_gui_row_id_");
for (Column c : getColumns()) {
sql.append(",");
sql.append(c.getName());
}
sql.append(") values (");
sql.append(row.getKey());
for (Column c : getColumns()) {
sql.append(",");
Value v = row.getValue(c.getColumnId());
if (v == null) {
sql.append("DEFAULT");
} else {
sql.append(v.getSQL());
}
}
sql.append(")");
Prepared prepared = session.prepare(sql.toString(), true);
prepared.setLocal(false);
prepared.update();
}
protected Row createRow(Value[] values) {
Row newRow = table.getTemplateRow();
for (int j = 0; j < columns.length; j++) {
Column c = columns[j];
int index = c.getColumnId();
Value v = c.convert(values[j]);
newRow.setValue(index, v);
}
return newRow;
}
private Cursor find(Session session, SearchRow first, boolean bigger, SearchRow last) {
StatementBuilder sql = new StatementBuilder("select _gui_row_id_");
for (Column c : getColumns()) {
sql.append(",");
sql.append(c.getName());
}
sql.append(" from ").append(getName());
if (first != null || last != null) {
sql.append(" where ");
for (Column c : getColumns()) {
sql.appendExceptFirst(" and ");
if (first != null) {
sql.append(c.getName()).append(">=");
Value v = first.getValue(c.getColumnId());
if (v != null) {
sql.append(v.getSQL());
}
}
if (last != null) {
sql.append(c.getName()).append("<=");
Value v = last.getValue(c.getColumnId());
if (v != null) {
sql.append(v.getSQL());
}
}
}
}
Prepared prepared = session.prepare(sql.toString(), true);
prepared.setLocal(false);
ResultInterface result = prepared.query(0);
if (bigger) result.next();
return new GlobalUniqueIndexTableCursor(result);
}
protected Row createRow(Expression[] expr, int rowId) {
Row newRow = table.getTemplateRow();
for (int i = 0, len = columns.length; i < len; i++) {
Column c = columns[i];
int index = c.getColumnId();
Expression e = expr[i];
if (e != null) {
// e can be null (DEFAULT)
try {
Value v = c.convert(e.getValue(session));
newRow.setValue(index, v);
} catch (DbException ex) {
throw setRow(ex, rowId, getSQL(expr));
}
}
}
return newRow;
}
@Override
public void remove(Session session, Row row) {
StatementBuilder sql = new StatementBuilder("delete from ");
sql.append(getName());
if (row != null) {
sql.append(" where ");
for (Column c : getColumns()) {
sql.appendExceptFirst(" and ");
sql.append(c.getName()).append("=");
Value v = row.getValue(c.getColumnId());
if (v != null) {
sql.append(v.getSQL());
}
}
}
Prepared prepared = session.prepare(sql.toString(), true);
prepared.setLocal(false);
prepared.update();
}