/**
* Abort current transaction and rollback operations.
*
* @param fireEvent
*/
public void abort(boolean fireEvent) {
if (!aborted && active) {
if (transaction != null) {
transaction.executeSQL(
"invalid sql statement",
null,
null,
new SQLTransaction.SQLStatementErrorCallback() {
@Override
public boolean onError(SQLTransaction tx, SQLError error) {
return true; // tell web sql to rollback transaction
}
});
transaction = null;
}
aborted = true;
active = false;
requestProcessor.stop();
if (fireEvent) {
if (LogConfiguration.loggingIsEnabled()) {
logger.log(Level.INFO, db.messages.databaseTransactionAborted(db.getName()));
}
if (transactionCallback != null) {
try {
transactionCallback.onAbort();
} catch (Exception e) {
String message = db.messages.databaseTransactionError(db.getName(), e.getMessage());
reportError(transactionCallback, message, e);
}
}
}
}
}
public void addRequest(RequestOperation operation, Mode[] supportedMode) {
if (!active || aborted) {
onError(db.messages.databaseTransactionInactive(db.getName()));
return;
}
boolean supported = checkSupportedModes(supportedMode);
if (!supported) {
onError(db.messages.databaseTransactionNotSupportedOperation(db.getName()));
return;
}
requestProcessor.addRequest(operation).executeRequests();
}
public void onSuccess() {
if (LogConfiguration.loggingIsEnabled()) {
logger.log(Level.INFO, db.messages.databaseTransactionCompleted(db.getName()));
}
active = false;
requestProcessor.stop();
if (transactionCallback != null) {
try {
transactionCallback.onComplete();
} catch (Exception e) {
String message = db.messages.databaseTransactionError(db.getName(), e.getMessage());
reportError(transactionCallback, message, e);
}
}
}
/**
* Retrieve an ObjectStore manipulated by the current transaction.
*
* @param <K>
* @param <V>
* @param storeName
* @return
*/
@Override
public <K, V> ObjectStore<K, V> getObjectStore(String storeName) {
if (!containsObjectStore(storeName)) {
onError(db.messages.databaseTransactionStoreNotFound(storeName));
return null;
}
WSQLAbstractObjectStore<K, V> objectStore = db.getObjectStore(storeName, this);
return objectStore;
}
public void onError(String errorMessage) {
String message = db.messages.databaseTransactionError(db.getName(), errorMessage);
active = false;
requestProcessor.stop();
if (LogConfiguration.loggingIsEnabled()) {
logger.log(Level.SEVERE, message);
}
if (transactionCallback != null) {
transactionCallback.onError(message);
}
}
protected WSQLTransaction(final WSQLAbstractDatabase db, String[] storeNames, Mode mode) {
super(db, storeNames, mode);
this.db = db;
this.active = true;
this.aborted = false;
this.transaction = null;
this.requestProcessor = new RequestProcessor(this);
if (db == null || !db.isOpen()) {
throw new DatabaseException(db.messages.databaseNotOpenedError());
}
if (mode != null && Mode.readOnly.equals(getMode())) {
db.database.readTransaction(this, this, this);
} else {
db.database.transaction(this, this, this);
}
}
