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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
 * 
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#ifndef _BOOLEXPRESSION_HXX
#define _BOOLEXPRESSION_HXX

// include for parent class
#include "computedexpression.hxx"

namespace xforms
{

/** BoolExpression represents a computed XPath expression that returns
 * a bool value and caches the results.
 *
 * As this class has no virtual methods, it should never be used
 * polymorphically. */
class BoolExpression : public ComputedExpression
{
public:
    BoolExpression();
    ~BoolExpression();

    /// set the expression string
    /// (overridden for new definition of a simple expression)
    void setExpression( const rtl::OUString& rExpression );
};

} // namespace xforms

#endif