void IDBIndexBackendImpl::openCursorInternal(ScriptExecutionContext*, PassRefPtr<IDBIndexBackendImpl> index, PassRefPtr<IDBKeyRange> range, unsigned short untypedDirection, IDBCursorBackendInterface::CursorType cursorType, PassRefPtr<IDBCallbacks> callbacks, PassRefPtr<IDBTransactionBackendInterface> transaction)
{
IDB_TRACE("IDBIndexBackendImpl::openCursorInternal");
IDBCursor::Direction direction = static_cast<IDBCursor::Direction>(untypedDirection);
RefPtr<IDBBackingStore::Cursor> backingStoreCursor;
switch (cursorType) {
case IDBCursorBackendInterface::IndexKeyCursor:
backingStoreCursor = index->backingStore()->openIndexKeyCursor(index->databaseId(), index->m_objectStoreBackend->id(), index->id(), range.get(), direction);
break;
case IDBCursorBackendInterface::IndexCursor:
backingStoreCursor = index->backingStore()->openIndexCursor(index->databaseId(), index->m_objectStoreBackend->id(), index->id(), range.get(), direction);
break;
case IDBCursorBackendInterface::ObjectStoreCursor:
case IDBCursorBackendInterface::InvalidCursorType:
ASSERT_NOT_REACHED();
break;
}
if (!backingStoreCursor) {
callbacks->onSuccess(SerializedScriptValue::nullValue());
return;
}
RefPtr<IDBCursorBackendInterface> cursor = IDBCursorBackendImpl::create(backingStoreCursor.get(), direction, cursorType, transaction.get(), index->m_objectStoreBackend);
callbacks->onSuccess(cursor.release());
}
void IDBIndexBackendImpl::getInternal(ScriptExecutionContext*, PassRefPtr<IDBIndexBackendImpl> index, PassRefPtr<IDBKeyRange> keyRange, PassRefPtr<IDBCallbacks> callbacks)
{
IDB_TRACE("IDBIndexBackendImpl::getInternal");
RefPtr<IDBKey> key;
if (keyRange->isOnlyKey())
key = keyRange->lower();
else {
RefPtr<IDBBackingStore::Cursor> backingStoreCursor = index->backingStore()->openIndexCursor(index->databaseId(), index->m_objectStoreBackend->id(), index->id(), keyRange.get(), IDBCursor::NEXT);
if (!backingStoreCursor) {
callbacks->onSuccess(SerializedScriptValue::undefinedValue());
return;
}
key = backingStoreCursor->key();
backingStoreCursor->close();
}
String value = index->backingStore()->getObjectViaIndex(index->databaseId(), index->m_objectStoreBackend->id(), index->id(), *key);
if (value.isNull()) {
callbacks->onSuccess(SerializedScriptValue::undefinedValue());
return;
}
callbacks->onSuccess(SerializedScriptValue::createFromWire(value));
}
void IDBIndexBackendImpl::getInternal(ScriptExecutionContext*, PassRefPtr<IDBIndexBackendImpl> index, PassRefPtr<IDBKeyRange> keyRange, PassRefPtr<IDBCallbacks> callbacks, PassRefPtr<IDBTransactionBackendImpl> transaction)
{
IDB_TRACE("IDBIndexBackendImpl::getInternal");
RefPtr<IDBKey> key;
if (keyRange->isOnlyKey())
key = keyRange->lower();
else {
RefPtr<IDBBackingStore::Cursor> backingStoreCursor = index->backingStore()->openIndexCursor(transaction->backingStoreTransaction(), index->databaseId(), index->m_objectStoreBackend->id(), index->id(), keyRange.get(), IDBCursor::NEXT);
if (!backingStoreCursor) {
callbacks->onSuccess();
return;
}
key = backingStoreCursor->key();
}
RefPtr<IDBKey> primaryKey = index->backingStore()->getPrimaryKeyViaIndex(transaction->backingStoreTransaction(), index->databaseId(), index->m_objectStoreBackend->id(), index->id(), *key);
String value = index->backingStore()->getRecord(transaction->backingStoreTransaction(), index->databaseId(), index->m_objectStoreBackend->id(), *primaryKey);
if (value.isNull()) {
callbacks->onSuccess();
return;
}
if (index->m_objectStoreBackend->autoIncrement() && !index->m_objectStoreBackend->keyPath().isNull()) {
callbacks->onSuccess(SerializedScriptValue::createFromWire(value),
primaryKey, index->m_objectStoreBackend->keyPath());
return;
}
callbacks->onSuccess(SerializedScriptValue::createFromWire(value));
}
void IDBIndexBackendImpl::getKeyInternal(ScriptExecutionContext* context, PassRefPtr<IDBIndexBackendImpl> index, PassRefPtr<IDBKeyRange> keyRange, PassRefPtr<IDBCallbacks> callbacks, PassRefPtr<IDBTransactionBackendImpl> transaction)
{
IDB_TRACE("IDBIndexBackendImpl::getInternal");
RefPtr<IDBBackingStore::Cursor> backingStoreCursor =
index->backingStore()->openIndexKeyCursor(transaction->backingStoreTransaction(), index->databaseId(), index->m_objectStoreBackend->id(), index->id(), keyRange.get(), IDBCursor::NEXT);
if (!backingStoreCursor) {
callbacks->onSuccess(static_cast<IDBKey*>(0));
return;
}
RefPtr<IDBKey> keyResult = index->backingStore()->getPrimaryKeyViaIndex(transaction->backingStoreTransaction(), index->databaseId(), index->m_objectStoreBackend->id(), index->id(), *backingStoreCursor->key());
if (!keyResult) {
callbacks->onSuccess(static_cast<IDBKey*>(0));
return;
}
callbacks->onSuccess(keyResult.get());
}
void IDBIndexBackendImpl::countInternal(ScriptExecutionContext*, PassRefPtr<IDBIndexBackendImpl> index, PassRefPtr<IDBKeyRange> range, PassRefPtr<IDBCallbacks> callbacks, PassRefPtr<IDBTransactionBackendInterface>)
{
IDB_TRACE("IDBIndexBackendImpl::countInternal");
uint32_t count = 0;
RefPtr<IDBBackingStore::Cursor> backingStoreCursor = index->backingStore()->openIndexKeyCursor(index->databaseId(), index->m_objectStoreBackend->id(), index->id(), range.get(), IDBCursor::NEXT);
if (!backingStoreCursor) {
callbacks->onSuccess(SerializedScriptValue::numberValue(count));
return;
}
do {
++count;
} while (backingStoreCursor->continueFunction(0));
backingStoreCursor->close();
callbacks->onSuccess(SerializedScriptValue::numberValue(count));
}
