Source/WebCore/Modules/indexeddb/IDBObjectStoreMetadata.h

/*
 * Copyright (C) 2012 Google Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1.  Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 * 2.  Redistributions in binary form must reproduce the above copyright
 *     notice, this list of conditions and the following disclaimer in the
 *     documentation and/or other materials provided with the distribution.
 * 3.  Neither the name of Apple Inc. ("Apple") nor the names of
 *     its contributors may be used to endorse or promote products derived
 *     from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY GOOGLE AND ITS CONTRIBUTORS "AS IS" AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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 */

#ifndef IDBObjectStoreMetadata_h
#define IDBObjectStoreMetadata_h

#include "IDBIndexMetadata.h"

#if ENABLE(INDEXED_DATABASE)

namespace WebCore {

struct IDBObjectStoreMetadata {
    IDBObjectStoreMetadata()
    {
    }

    IDBObjectStoreMetadata(const String& name, int64_t id, const IDBKeyPath& keyPath, bool autoIncrement, int64_t maxIndexId)
        : name(name)
        , id(id)
        , keyPath(keyPath)
        , autoIncrement(autoIncrement)
        , maxIndexId(maxIndexId)
    {
    }

    template<class Encoder> void encode(Encoder&) const;
    template<class Decoder> static bool decode(Decoder&, IDBObjectStoreMetadata&);
    
    String name;
    int64_t id;
    IDBKeyPath keyPath;
    bool autoIncrement;
    int64_t maxIndexId;

    static const int64_t InvalidId = -1;

    typedef HashMap<int64_t, IDBIndexMetadata> IndexMap;
    IndexMap indexes;

    IDBObjectStoreMetadata isolatedCopy() const;
};

template<class Encoder>
void IDBObjectStoreMetadata::encode(Encoder& encoder) const
{
    encoder << name << id << keyPath << autoIncrement << maxIndexId << indexes;
}

template<class Decoder>
bool IDBObjectStoreMetadata::decode(Decoder& decoder, IDBObjectStoreMetadata& metadata)
{
    if (!decoder.decode(metadata.name))
        return false;

    if (!decoder.decode(metadata.id))
        return false;

    if (!decoder.decode(metadata.keyPath))
        return false;

    if (!decoder.decode(metadata.autoIncrement))
        return false;

    if (!decoder.decode(metadata.maxIndexId))
        return false;

    if (!decoder.decode(metadata.indexes))
        return false;

    return true;
}

} // namespace WebCore

#endif // ENABLE(INDEXED_DATABASE)
#endif // IDBObjectStoreMetadata_h