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 * 
 * 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 License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 * 
 *   http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
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 *************************************************************/



#ifndef _CONNECTIVITY_MACAB_CONDITION_HXX_
#define _CONNECTIVITY_MACAB_CONDITION_HXX_

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

#ifndef _COMPHELPER_TYPES_H_
#include <comphelper/types.hxx>
#endif
#include <connectivity/dbexception.hxx>

namespace connectivity
{
	namespace macab
	{
// -----------------------------------------------------------------------------
class MacabCondition
{
	public:
		virtual ~MacabCondition();
		virtual sal_Bool isAlwaysTrue() const = 0;
		virtual sal_Bool isAlwaysFalse() const = 0;
		virtual sal_Bool eval(const MacabRecord *aRecord) const = 0;
};
// -----------------------------------------------------------------------------
class MacabConditionConstant : public MacabCondition
{
	protected:
		sal_Bool m_bValue;

	public:
		MacabConditionConstant(const sal_Bool bValue);
		virtual sal_Bool isAlwaysTrue() const;
		virtual sal_Bool isAlwaysFalse() const;
		virtual sal_Bool eval(const MacabRecord *aRecord) const;
};
// -----------------------------------------------------------------------------
class MacabConditionColumn : public MacabCondition
{
	protected:
		sal_Int32 m_nFieldNumber;

	public:
		MacabConditionColumn(
			const MacabHeader *header,
			const ::rtl::OUString &sColumnName) throw(::com::sun::star::sdbc::SQLException);
		virtual sal_Bool isAlwaysTrue() const;
		virtual sal_Bool isAlwaysFalse() const;
};
// -----------------------------------------------------------------------------
class MacabConditionNull : public MacabConditionColumn
{
	public:
		MacabConditionNull(
			const MacabHeader *header,
			const ::rtl::OUString &sColumnName) throw(::com::sun::star::sdbc::SQLException);
		virtual sal_Bool eval(const MacabRecord *aRecord) const;
};
// -----------------------------------------------------------------------------
class MacabConditionNotNull : public MacabConditionColumn
{
	public:
		MacabConditionNotNull(
			const MacabHeader *header,
			const ::rtl::OUString &sColumnName) throw(::com::sun::star::sdbc::SQLException);
		virtual sal_Bool eval(const MacabRecord *aRecord) const;
};
// -----------------------------------------------------------------------------
class MacabConditionCompare : public MacabConditionColumn
{
	protected:
		const ::rtl::OUString m_sMatchString;

	public:
		MacabConditionCompare(
			const MacabHeader *header,
			const ::rtl::OUString &sColumnName,
			const ::rtl::OUString &sMatchString) throw(::com::sun::star::sdbc::SQLException);
};
// -----------------------------------------------------------------------------
class MacabConditionEqual : public MacabConditionCompare
{
	public:
		MacabConditionEqual(
			const MacabHeader *header,
			const ::rtl::OUString &sColumnName,
			const ::rtl::OUString &sMatchString) throw(::com::sun::star::sdbc::SQLException);
		virtual sal_Bool eval(const MacabRecord *aRecord) const;
};
// -----------------------------------------------------------------------------
class MacabConditionDifferent : public MacabConditionCompare
{
	public:
		MacabConditionDifferent(
			const MacabHeader *header,
			const ::rtl::OUString &sColumnName,
			const ::rtl::OUString &sMatchString) throw(::com::sun::star::sdbc::SQLException);
		virtual sal_Bool eval(const MacabRecord *aRecord) const;
};
// -----------------------------------------------------------------------------
class MacabConditionSimilar : public MacabConditionCompare
{
	public:
		MacabConditionSimilar(
			const MacabHeader *header,
			const ::rtl::OUString &sColumnName,
			const ::rtl::OUString &sMatchString) throw(::com::sun::star::sdbc::SQLException);
		virtual sal_Bool eval(const MacabRecord *aRecord) const;
};
// -----------------------------------------------------------------------------
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 sal_Bool isAlwaysTrue() const;
		virtual sal_Bool isAlwaysFalse() const;
		virtual sal_Bool eval(const MacabRecord *aRecord) const;
};
// -----------------------------------------------------------------------------
class MacabConditionAnd : public MacabConditionBoolean
{
	public:
		MacabConditionAnd(MacabCondition *pLeft, MacabCondition *pRight);
		virtual sal_Bool isAlwaysTrue() const;
		virtual sal_Bool isAlwaysFalse() const;
		virtual sal_Bool eval(const MacabRecord *aRecord) const;
};
// -----------------------------------------------------------------------------
	}
}

#endif // _CONNECTIVITY_MACAB_CONDITION_HXX_