117 lines
2.7 KiB
C++
117 lines
2.7 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 mozStorageBindingParamsArray_h
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#define mozStorageBindingParamsArray_h
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#include "nsAutoPtr.h"
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#include "nsTArray.h"
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#include "mozilla/Attributes.h"
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#include "mozIStorageBindingParamsArray.h"
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namespace mozilla {
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namespace storage {
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class StorageBaseStatementInternal;
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class BindingParamsArray final : public mozIStorageBindingParamsArray
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{
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typedef nsTArray< nsCOMPtr<mozIStorageBindingParams> > array_type;
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~BindingParamsArray() {}
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public:
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NS_DECL_THREADSAFE_ISUPPORTS
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NS_DECL_MOZISTORAGEBINDINGPARAMSARRAY
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explicit BindingParamsArray(StorageBaseStatementInternal *aOwningStatement);
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typedef array_type::size_type size_type;
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/**
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* Locks the array and prevents further modification to it (such as adding
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* more elements to it).
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*/
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void lock();
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/**
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* @return the pointer to the owning BindingParamsArray.
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*/
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const StorageBaseStatementInternal *getOwner() const;
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/**
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* @return the number of elemets the array contains.
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*/
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const size_type length() const { return mArray.Length(); }
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class iterator {
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public:
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iterator(BindingParamsArray *aArray,
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uint32_t aIndex)
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: mArray(aArray)
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, mIndex(aIndex)
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{
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}
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iterator &operator++(int)
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{
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mIndex++;
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return *this;
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}
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bool operator==(const iterator &aOther) const
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{
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return mIndex == aOther.mIndex;
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}
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bool operator!=(const iterator &aOther) const
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{
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return !(*this == aOther);
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}
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mozIStorageBindingParams *operator*()
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{
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NS_ASSERTION(mIndex < mArray->length(),
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"Dereferenceing an invalid value!");
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return mArray->mArray[mIndex].get();
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}
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private:
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void operator--() { }
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BindingParamsArray *mArray;
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uint32_t mIndex;
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};
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/**
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* Obtains an iterator pointing to the beginning of the array.
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*/
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inline iterator begin()
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{
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NS_ASSERTION(length() != 0,
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"Obtaining an iterator to the beginning with no elements!");
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return iterator(this, 0);
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}
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/**
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* Obtains an iterator pointing to the end of the array.
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*/
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inline iterator end()
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{
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NS_ASSERTION(mLocked,
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"Obtaining an iterator to the end when we are not locked!");
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return iterator(this, length());
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}
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private:
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nsCOMPtr<StorageBaseStatementInternal> mOwningStatement;
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array_type mArray;
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bool mLocked;
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friend class iterator;
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};
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} // namespace storage
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} // namespace mozilla
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#endif // mozStorageBindingParamsArray_h
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