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 * This file incorporates work covered by the following license notice:
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 *   Licensed to the Apache Software Foundation (ASF) under one or more
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#ifndef INCLUDED_CONNECTIVITY_SOURCE_DRIVERS_MACAB_MACABCONDITION_HXX
#define INCLUDED_CONNECTIVITY_SOURCE_DRIVERS_MACAB_MACABCONDITION_HXX

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

#include <comphelper/types.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:
        MacabConditionConstant(const bool bValue);
        virtual bool isAlwaysTrue() const SAL_OVERRIDE;
        virtual bool isAlwaysFalse() const SAL_OVERRIDE;
        virtual bool eval(const MacabRecord *aRecord) const SAL_OVERRIDE;
};

class MacabConditionColumn : public MacabCondition
{
    protected:
        sal_Int32 m_nFieldNumber;

    public:
        MacabConditionColumn(
            const MacabHeader *header,
            const OUString &sColumnName) throw(::com::sun::star::sdbc::SQLException);
        virtual bool isAlwaysTrue() const SAL_OVERRIDE;
        virtual bool isAlwaysFalse() const SAL_OVERRIDE;
};

class MacabConditionNull : public MacabConditionColumn
{
    public:
        MacabConditionNull(
            const MacabHeader *header,
            const OUString &sColumnName) throw(::com::sun::star::sdbc::SQLException);
        virtual bool eval(const MacabRecord *aRecord) const SAL_OVERRIDE;
};

class MacabConditionNotNull : public MacabConditionColumn
{
    public:
        MacabConditionNotNull(
            const MacabHeader *header,
            const OUString &sColumnName) throw(::com::sun::star::sdbc::SQLException);
        virtual bool eval(const MacabRecord *aRecord) const SAL_OVERRIDE;
};

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

    public:
        MacabConditionCompare(
            const MacabHeader *header,
            const OUString &sColumnName,
            const OUString &sMatchString) throw(::com::sun::star::sdbc::SQLException);
};

class MacabConditionEqual : public MacabConditionCompare
{
    public:
        MacabConditionEqual(
            const MacabHeader *header,
            const OUString &sColumnName,
            const OUString &sMatchString) throw(::com::sun::star::sdbc::SQLException);
        virtual bool eval(const MacabRecord *aRecord) const SAL_OVERRIDE;
};

class MacabConditionDifferent : public MacabConditionCompare
{
    public:
        MacabConditionDifferent(
            const MacabHeader *header,
            const OUString &sColumnName,
            const OUString &sMatchString) throw(::com::sun::star::sdbc::SQLException);
        virtual bool eval(const MacabRecord *aRecord) const SAL_OVERRIDE;
};

class MacabConditionSimilar : public MacabConditionCompare
{
    public:
        MacabConditionSimilar(
            const MacabHeader *header,
            const OUString &sColumnName,
            const OUString &sMatchString) throw(::com::sun::star::sdbc::SQLException);
        virtual bool eval(const MacabRecord *aRecord) const SAL_OVERRIDE;
};

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

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

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

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

    }
}

#endif // INCLUDED_CONNECTIVITY_SOURCE_DRIVERS_MACAB_MACABCONDITION_HXX

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