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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CONTENT_COMMON_INDEXED_DB_INDEXED_DB_KEY_H_
#define CONTENT_COMMON_INDEXED_DB_INDEXED_DB_KEY_H_
#include <string>
#include <vector>
#include "base/basictypes.h"
#include "base/logging.h"
#include "base/memory/scoped_vector.h"
#include "base/strings/string16.h"
#include "content/common/content_export.h"
#include "third_party/WebKit/public/platform/modules/indexeddb/WebIDBTypes.h"
namespace blink {
class WebIDBKey;
}
namespace content {
class CONTENT_EXPORT IndexedDBKey {
public:
typedef std::vector<IndexedDBKey> KeyArray;
IndexedDBKey(); // Defaults to blink::WebIDBKeyTypeInvalid.
explicit IndexedDBKey(blink::WebIDBKeyType); // must be Null or Invalid
explicit IndexedDBKey(const KeyArray& array);
explicit IndexedDBKey(const std::string& binary);
explicit IndexedDBKey(const base::string16& string);
IndexedDBKey(double number,
blink::WebIDBKeyType type); // must be date or number
IndexedDBKey(const IndexedDBKey& other);
~IndexedDBKey();
IndexedDBKey& operator=(const IndexedDBKey& other);
bool IsValid() const;
bool IsLessThan(const IndexedDBKey& other) const;
bool Equals(const IndexedDBKey& other) const;
blink::WebIDBKeyType type() const { return type_; }
const std::vector<IndexedDBKey>& array() const {
DCHECK_EQ(type_, blink::WebIDBKeyTypeArray);
return array_;
}
const std::string& binary() const {
DCHECK_EQ(type_, blink::WebIDBKeyTypeBinary);
return binary_;
}
const base::string16& string() const {
DCHECK_EQ(type_, blink::WebIDBKeyTypeString);
return string_;
}
double date() const {
DCHECK_EQ(type_, blink::WebIDBKeyTypeDate);
return number_;
}
double number() const {
DCHECK_EQ(type_, blink::WebIDBKeyTypeNumber);
return number_;
}
size_t size_estimate() const { return size_estimate_; }
private:
int CompareTo(const IndexedDBKey& other) const;
blink::WebIDBKeyType type_;
std::vector<IndexedDBKey> array_;
std::string binary_;
base::string16 string_;
double number_ = 0;
size_t size_estimate_;
};
} // namespace content
#endif // CONTENT_COMMON_INDEXED_DB_INDEXED_DB_KEY_H_
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