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119 lines
3.3 KiB
C++
119 lines
3.3 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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* vim: sw=2 ts=2 et lcs=trail\:.,tab\:>~ :
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef mozStorageStatement_h
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#define mozStorageStatement_h
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#include "nsAutoPtr.h"
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#include "nsString.h"
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#include "nsTArray.h"
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#include "mozStorageBindingParamsArray.h"
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#include "mozStorageStatementData.h"
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#include "mozIStorageStatement.h"
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#include "mozIStorageValueArray.h"
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#include "StorageBaseStatementInternal.h"
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#include "mozilla/Attributes.h"
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class nsIXPConnectJSObjectHolder;
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struct sqlite3_stmt;
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namespace mozilla {
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namespace storage {
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class StatementJSHelper;
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class Connection;
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class Statement final : public mozIStorageStatement
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, public mozIStorageValueArray
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, public StorageBaseStatementInternal
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{
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public:
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NS_DECL_THREADSAFE_ISUPPORTS
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NS_DECL_MOZISTORAGESTATEMENT
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NS_DECL_MOZISTORAGEBASESTATEMENT
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NS_DECL_MOZISTORAGEBINDINGPARAMS
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// NS_DECL_MOZISTORAGEVALUEARRAY (methods in mozIStorageStatement)
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NS_DECL_STORAGEBASESTATEMENTINTERNAL
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Statement();
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/**
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* Initializes the object on aDBConnection by preparing the SQL statement
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* given by aSQLStatement.
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*
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* @param aDBConnection
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* The Connection object this statement is associated with.
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* @param aNativeConnection
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* The native Sqlite connection this statement is associated with.
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* @param aSQLStatement
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* The SQL statement to prepare that this object will represent.
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*/
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nsresult initialize(Connection *aDBConnection,
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sqlite3* aNativeConnection,
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const nsACString &aSQLStatement);
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/**
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* Obtains the native statement pointer.
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*/
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inline sqlite3_stmt *nativeStatement() { return mDBStatement; }
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/**
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* Obtains and transfers ownership of the array of parameters that are bound
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* to this statment. This can be null.
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*/
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inline already_AddRefed<BindingParamsArray> bindingParamsArray()
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{
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return mParamsArray.forget();
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}
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private:
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~Statement();
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sqlite3_stmt *mDBStatement;
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uint32_t mParamCount;
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uint32_t mResultColumnCount;
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nsTArray<nsCString> mColumnNames;
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bool mExecuting;
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/**
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* @return a pointer to the BindingParams object to use with our Bind*
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* method.
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*/
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mozIStorageBindingParams *getParams();
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/**
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* Holds the array of parameters to bind to this statement when we execute
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* it asynchronously.
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*/
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RefPtr<BindingParamsArray> mParamsArray;
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/**
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* The following two members are only used with the JS helper. They cache
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* the row and params objects.
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*/
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nsMainThreadPtrHandle<nsIXPConnectJSObjectHolder> mStatementParamsHolder;
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nsMainThreadPtrHandle<nsIXPConnectJSObjectHolder> mStatementRowHolder;
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/**
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* Internal version of finalize that allows us to tell it if it is being
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* called from the destructor so it can know not to dispatch events that
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* require a reference to us.
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*
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* @param aDestructing
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* Is the destructor calling?
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*/
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nsresult internalFinalize(bool aDestructing);
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friend class StatementJSHelper;
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};
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} // namespace storage
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} // namespace mozilla
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#endif // mozStorageStatement_h
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