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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef mozilla_storage_mozStorageAsyncStatement_h_
#define mozilla_storage_mozStorageAsyncStatement_h_
#include "nsAutoPtr.h"
#include "nsString.h"
#include "nsTArray.h"
#include "mozStorageBindingParamsArray.h"
#include "mozStorageStatementData.h"
#include "mozIStorageAsyncStatement.h"
#include "StorageBaseStatementInternal.h"
#include "mozilla/Attributes.h"
class nsIXPConnectJSObjectHolder;
namespace mozilla {
namespace storage {
class AsyncStatementJSHelper;
class Connection;
class AsyncStatement final : public mozIStorageAsyncStatement
, public StorageBaseStatementInternal
{
public:
NS_DECL_THREADSAFE_ISUPPORTS
NS_DECL_MOZISTORAGEASYNCSTATEMENT
NS_DECL_MOZISTORAGEBASESTATEMENT
NS_DECL_MOZISTORAGEBINDINGPARAMS
NS_DECL_STORAGEBASESTATEMENTINTERNAL
AsyncStatement();
/**
* Initializes the object on aDBConnection by preparing the SQL statement
* given by aSQLStatement.
*
* @param aDBConnection
* The Connection object this statement is associated with.
* @param aNativeConnection
* The native Sqlite connection this statement is associated with.
* @param aSQLStatement
* The SQL statement to prepare that this object will represent.
*/
nsresult initialize(Connection *aDBConnection,
sqlite3 *aNativeConnection,
const nsACString &aSQLStatement);
/**
* Obtains and transfers ownership of the array of parameters that are bound
* to this statment. This can be null.
*/
inline already_AddRefed<BindingParamsArray> bindingParamsArray()
{
return mParamsArray.forget();
}
private:
~AsyncStatement();
/**
* @return a pointer to the BindingParams object to use with our Bind*
* method.
*/
mozIStorageBindingParams *getParams();
/**
* The SQL string as passed by the user. We store it because we create the
* async statement on-demand on the async thread.
*/
nsCString mSQLString;
/**
* Holds the array of parameters to bind to this statement when we execute
* it asynchronously.
*/
RefPtr<BindingParamsArray> mParamsArray;
/**
* Caches the JS 'params' helper for this statement.
*/
nsMainThreadPtrHandle<nsIXPConnectJSObjectHolder> mStatementParamsHolder;
/**
* Have we been explicitly finalized by the user?
*/
bool mFinalized;
/**
* Required for access to private mStatementParamsHolder field by
* AsyncStatementJSHelper::getParams.
*/
friend class AsyncStatementJSHelper;
};
} // namespace storage
} // namespace mozilla
#endif // mozilla_storage_mozStorageAsyncStatement_h_
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