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 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 *
 * This file incorporates work covered by the following license notice:
 *
 *   Licensed to the Apache Software Foundation (ASF) under one or more
 *   contributor license agreements. See the NOTICE file distributed
 *   with this work for additional information regarding copyright
 *   ownership. The ASF licenses this file to you under the Apache
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 *   except in compliance with the License. You may obtain a copy of
 *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
 */

#ifndef INCLUDED_CONNECTIVITY_SOURCE_DRIVERS_MACAB_MACABCONDITION_HXX
#define INCLUDED_CONNECTIVITY_SOURCE_DRIVERS_MACAB_MACABCONDITION_HXX

#include "MacabHeader.hxx"
#include "MacabRecord.hxx"

#include <connectivity/dbexception.hxx>

namespace connectivity
{
    namespace macab
    {

class MacabCondition
{
    public:
        virtual ~MacabCondition();
        virtual bool isAlwaysTrue() const = 0;
        virtual bool isAlwaysFalse() const = 0;
        virtual bool eval(const MacabRecord *aRecord) const = 0;
};

class MacabConditionConstant : public MacabCondition
{
    protected:
        bool m_bValue;

    public:
        explicit MacabConditionConstant(const bool bValue);
        virtual bool isAlwaysTrue() const override;
        virtual bool isAlwaysFalse() const override;
        virtual bool eval(const MacabRecord *aRecord) const override;
};

class MacabConditionColumn : public MacabCondition
{
    protected:
        sal_Int32 m_nFieldNumber;

    public:
        /// @throws css::sdbc::SQLException
        MacabConditionColumn(
            const MacabHeader *header,
            const OUString &sColumnName);
        virtual bool isAlwaysTrue() const override;
        virtual bool isAlwaysFalse() const override;
};

class MacabConditionNull : public MacabConditionColumn
{
    public:
        /// @throws css::sdbc::SQLException
        MacabConditionNull(
            const MacabHeader *header,
            const OUString &sColumnName);
        virtual bool eval(const MacabRecord *aRecord) const override;
};

class MacabConditionNotNull : public MacabConditionColumn
{
    public:
        /// @throws css::sdbc::SQLException
        MacabConditionNotNull(
            const MacabHeader *header,
            const OUString &sColumnName);
        virtual bool eval(const MacabRecord *aRecord) const override;
};

class MacabConditionCompare : public MacabConditionColumn
{
    protected:
        const OUString m_sMatchString;

    public:
        /// @throws css::sdbc::SQLException
        MacabConditionCompare(
            const MacabHeader *header,
            const OUString &sColumnName,
            const OUString &sMatchString);
};

class MacabConditionEqual : public MacabConditionCompare
{
    public:
        /// @throws css::sdbc::SQLException
        MacabConditionEqual(
            const MacabHeader *header,
            const OUString &sColumnName,
            const OUString &sMatchString);
        virtual bool eval(const MacabRecord *aRecord) const override;
};

class MacabConditionDifferent : public MacabConditionCompare
{
    public:
        /// @throws css::sdbc::SQLException
        MacabConditionDifferent(
            const MacabHeader *header,
            const OUString &sColumnName,
            const OUString &sMatchString);
        virtual bool eval(const MacabRecord *aRecord) const override;
};

class MacabConditionSimilar : public MacabConditionCompare
{
    public:
        /// @throws css::sdbc::SQLException
        MacabConditionSimilar(
            const MacabHeader *header,
            const OUString &sColumnName,
            const OUString &sMatchString);
        virtual bool eval(const MacabRecord *aRecord) const override;
};

class MacabConditionBoolean : public MacabCondition
{
    protected:
        MacabCondition *m_pLeft, *m_pRight;

    public:
        MacabConditionBoolean(MacabCondition *pLeft, MacabCondition *pRight);
        virtual ~MacabConditionBoolean() override;
};

class MacabConditionOr : public MacabConditionBoolean
{
    public:
        MacabConditionOr(MacabCondition *pLeft, MacabCondition *pRight);
        virtual bool isAlwaysTrue() const override;
        virtual bool isAlwaysFalse() const override;
        virtual bool eval(const MacabRecord *aRecord) const override;
};

class MacabConditionAnd : public MacabConditionBoolean
{
    public:
        MacabConditionAnd(MacabCondition *pLeft, MacabCondition *pRight);
        virtual bool isAlwaysTrue() const override;
        virtual bool isAlwaysFalse() const override;
        virtual bool eval(const MacabRecord *aRecord) const override;
};

    }
}

#endif // INCLUDED_CONNECTIVITY_SOURCE_DRIVERS_MACAB_MACABCONDITION_HXX

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