Source/modules/indexeddb/IDBObjectStore.h

/*
 * Copyright (C) 2010 Google Inc. All rights reserved.
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 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
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 * 1.  Redistributions of source code must retain the above copyright
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 *
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#ifndef IDBObjectStore_h
#define IDBObjectStore_h

#include "bindings/v8/Dictionary.h"
#include "bindings/v8/ScriptWrappable.h"
#include "bindings/v8/SerializedScriptValue.h"
#include "modules/indexeddb/IDBCursor.h"
#include "modules/indexeddb/IDBIndex.h"
#include "modules/indexeddb/IDBKey.h"
#include "modules/indexeddb/IDBKeyRange.h"
#include "modules/indexeddb/IDBMetadata.h"
#include "modules/indexeddb/IDBRequest.h"
#include "modules/indexeddb/IDBTransaction.h"
#include "wtf/PassRefPtr.h"
#include "wtf/RefCounted.h"
#include "wtf/RefPtr.h"
#include "wtf/text/WTFString.h"

namespace WebCore {

class DOMStringList;
class IDBAny;
class ExceptionState;

class IDBObjectStore : public ScriptWrappable, public RefCounted<IDBObjectStore> {
public:
    static PassRefPtr<IDBObjectStore> create(const IDBObjectStoreMetadata& metadata, IDBTransaction* transaction)
    {
        return adoptRef(new IDBObjectStore(metadata, transaction));
    }
    ~IDBObjectStore() { }

    // Implement the IDBObjectStore IDL
    int64_t id() const { return m_metadata.id; }
    const String& name() const { return m_metadata.name; }
    PassRefPtr<IDBAny> keyPathAny() const { return IDBAny::create(m_metadata.keyPath); }
    const IDBKeyPath& keyPath() const { return m_metadata.keyPath; }
    PassRefPtr<DOMStringList> indexNames() const;
    PassRefPtr<IDBTransaction> transaction() const { return m_transaction; }
    bool autoIncrement() const { return m_metadata.autoIncrement; }

    PassRefPtr<IDBRequest> openCursor(ExecutionContext*, const ScriptValue& range, const String& direction, ExceptionState&);
    PassRefPtr<IDBRequest> openKeyCursor(ExecutionContext*, const ScriptValue& range, const String& direction, ExceptionState&);
    PassRefPtr<IDBRequest> get(ExecutionContext*, const ScriptValue& key, ExceptionState&);
    PassRefPtr<IDBRequest> add(ScriptState*, ScriptValue&, const ScriptValue& key, ExceptionState&);
    PassRefPtr<IDBRequest> put(ScriptState*, ScriptValue&, const ScriptValue& key, ExceptionState&);
    PassRefPtr<IDBRequest> deleteFunction(ExecutionContext*, const ScriptValue& key, ExceptionState&);
    PassRefPtr<IDBRequest> clear(ExecutionContext*, ExceptionState&);

    PassRefPtr<IDBIndex> createIndex(ExecutionContext* context, const String& name, const String& keyPath, const Dictionary& options, ExceptionState& es) { return createIndex(context, name, IDBKeyPath(keyPath), options, es); }
    PassRefPtr<IDBIndex> createIndex(ExecutionContext* context, const String& name, const Vector<String>& keyPath, const Dictionary& options, ExceptionState& es) { return createIndex(context, name, IDBKeyPath(keyPath), options, es); }
    PassRefPtr<IDBIndex> index(const String& name, ExceptionState&);
    void deleteIndex(const String& name, ExceptionState&);

    PassRefPtr<IDBRequest> count(ExecutionContext*, const ScriptValue& range, ExceptionState&);

    // Used by IDBCursor::update():
    PassRefPtr<IDBRequest> put(IDBDatabaseBackendInterface::PutMode, PassRefPtr<IDBAny> source, ScriptState*, ScriptValue&, PassRefPtr<IDBKey>, ExceptionState&);

    // Used internally and by InspectorIndexedDBAgent:
    PassRefPtr<IDBRequest> openCursor(ExecutionContext*, PassRefPtr<IDBKeyRange>, IndexedDB::CursorDirection, IDBDatabaseBackendInterface::TaskType = IDBDatabaseBackendInterface::NormalTask);

    void markDeleted() { m_deleted = true; }
    bool isDeleted() const { return m_deleted; }
    void transactionFinished();

    IDBObjectStoreMetadata metadata() const { return m_metadata; }
    void setMetadata(const IDBObjectStoreMetadata& metadata) { m_metadata = metadata; }

    typedef Vector<RefPtr<IDBKey> > IndexKeys;
    typedef HashMap<String, IndexKeys> IndexKeyMap;

    IDBDatabaseBackendInterface* backendDB() const;

private:
    IDBObjectStore(const IDBObjectStoreMetadata&, IDBTransaction*);

    PassRefPtr<IDBIndex> createIndex(ExecutionContext*, const String& name, const IDBKeyPath&, const Dictionary&, ExceptionState&);
    PassRefPtr<IDBIndex> createIndex(ExecutionContext*, const String& name, const IDBKeyPath&, bool unique, bool multiEntry, ExceptionState&);
    PassRefPtr<IDBRequest> put(IDBDatabaseBackendInterface::PutMode, PassRefPtr<IDBAny> source, ScriptState*, ScriptValue&, const ScriptValue& key, ExceptionState&);

    int64_t findIndexId(const String& name) const;
    bool containsIndex(const String& name) const
    {
        return findIndexId(name) != IDBIndexMetadata::InvalidId;
    }

    IDBObjectStoreMetadata m_metadata;
    RefPtr<IDBTransaction> m_transaction;
    bool m_deleted;

    typedef HashMap<String, RefPtr<IDBIndex> > IDBIndexMap;
    IDBIndexMap m_indexMap;
};

} // namespace WebCore

#endif // IDBObjectStore_h