1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/storage/src/mozStorageBindingParamsArray.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,114 @@
1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
1.5 + * vim: sw=2 ts=2 et lcs=trail\:.,tab\:>~ :
1.6 + * This Source Code Form is subject to the terms of the Mozilla Public
1.7 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.8 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.9 +
1.10 +#ifndef mozStorageBindingParamsArray_h
1.11 +#define mozStorageBindingParamsArray_h
1.12 +
1.13 +#include "nsAutoPtr.h"
1.14 +#include "nsTArray.h"
1.15 +#include "mozilla/Attributes.h"
1.16 +
1.17 +#include "mozIStorageBindingParamsArray.h"
1.18 +
1.19 +namespace mozilla {
1.20 +namespace storage {
1.21 +
1.22 +class StorageBaseStatementInternal;
1.23 +
1.24 +class BindingParamsArray MOZ_FINAL : public mozIStorageBindingParamsArray
1.25 +{
1.26 + typedef nsTArray< nsCOMPtr<mozIStorageBindingParams> > array_type;
1.27 +
1.28 +public:
1.29 + NS_DECL_THREADSAFE_ISUPPORTS
1.30 + NS_DECL_MOZISTORAGEBINDINGPARAMSARRAY
1.31 +
1.32 + BindingParamsArray(StorageBaseStatementInternal *aOwningStatement);
1.33 +
1.34 + typedef array_type::size_type size_type;
1.35 +
1.36 + /**
1.37 + * Locks the array and prevents further modification to it (such as adding
1.38 + * more elements to it).
1.39 + */
1.40 + void lock();
1.41 +
1.42 + /**
1.43 + * @return the pointer to the owning BindingParamsArray.
1.44 + */
1.45 + const StorageBaseStatementInternal *getOwner() const;
1.46 +
1.47 + /**
1.48 + * @return the number of elemets the array contains.
1.49 + */
1.50 + const size_type length() const { return mArray.Length(); }
1.51 +
1.52 + class iterator {
1.53 + public:
1.54 + iterator(BindingParamsArray *aArray,
1.55 + uint32_t aIndex)
1.56 + : mArray(aArray)
1.57 + , mIndex(aIndex)
1.58 + {
1.59 + }
1.60 +
1.61 + iterator &operator++(int)
1.62 + {
1.63 + mIndex++;
1.64 + return *this;
1.65 + }
1.66 +
1.67 + bool operator==(const iterator &aOther) const
1.68 + {
1.69 + return mIndex == aOther.mIndex;
1.70 + }
1.71 + bool operator!=(const iterator &aOther) const
1.72 + {
1.73 + return !(*this == aOther);
1.74 + }
1.75 + mozIStorageBindingParams *operator*()
1.76 + {
1.77 + NS_ASSERTION(mIndex < mArray->length(),
1.78 + "Dereferenceing an invalid value!");
1.79 + return mArray->mArray[mIndex].get();
1.80 + }
1.81 + private:
1.82 + void operator--() { }
1.83 + BindingParamsArray *mArray;
1.84 + uint32_t mIndex;
1.85 + };
1.86 +
1.87 + /**
1.88 + * Obtains an iterator pointing to the beginning of the array.
1.89 + */
1.90 + inline iterator begin()
1.91 + {
1.92 + NS_ASSERTION(length() != 0,
1.93 + "Obtaining an iterator to the beginning with no elements!");
1.94 + return iterator(this, 0);
1.95 + }
1.96 +
1.97 + /**
1.98 + * Obtains an iterator pointing to the end of the array.
1.99 + */
1.100 + inline iterator end()
1.101 + {
1.102 + NS_ASSERTION(mLocked,
1.103 + "Obtaining an iterator to the end when we are not locked!");
1.104 + return iterator(this, length());
1.105 + }
1.106 +private:
1.107 + nsCOMPtr<StorageBaseStatementInternal> mOwningStatement;
1.108 + array_type mArray;
1.109 + bool mLocked;
1.110 +
1.111 + friend class iterator;
1.112 +};
1.113 +
1.114 +} // namespace storage
1.115 +} // namespace mozilla
1.116 +
1.117 +#endif // mozStorageBindingParamsArray_h
