Oracle Coherence for C++ API
Release 3.7.1.0
E22845-01

coherence/util/filter/NotEqualsFilter.hpp

/*
* NotEqualsFilter.hpp
*
* Copyright (c) 2000, 2011, Oracle and/or its affiliates. All rights reserved.
*
* Oracle is a registered trademarks of Oracle Corporation and/or its
* affiliates.
*
* This software is the confidential and proprietary information of Oracle
* Corporation. You shall not disclose such confidential and proprietary
* information and shall use it only in accordance with the terms of the
* license agreement you entered into with Oracle.
*
* This notice may not be removed or altered.
*/
#ifndef COH_NOTEQUALS_FILTER_HPP
#define COH_NOTEQUALS_FILTER_HPP

#include "coherence/lang.ns"

#include "coherence/util/ValueExtractor.hpp"
#include "coherence/util/filter/ComparisonFilter.hpp"
#include "coherence/util/filter/IndexAwareFilter.hpp"

COH_OPEN_NAMESPACE3(coherence,util,filter)


/**
* Filter which compares the result of a method invocation with a value for
* inequality.
*
* @author djl  2008.03.23
*/
class COH_EXPORT NotEqualsFilter
    : public class_spec<NotEqualsFilter,
        extends<ComparisonFilter>,
        implements<IndexAwareFilter> >
    {
    friend class factory<NotEqualsFilter>;

    // ----- constructors ---------------------------------------------------

    protected:
        /**
        * Default constructor (necessary for the PortableObject interface).
        */
        NotEqualsFilter();

        /**
        * Construct an NotEqualsFilter for testing inequality.
        *
        * @param vValueExtractor  the ValueExtractor to use by this filter
        * @param vValue           the object to compare the result with
        */
        NotEqualsFilter(ValueExtractor::View vValueExtractor,
                Object::View vValue);


    // ----- ExtractorFilter interface --------------------------------------

    protected:
        /**
        * {@inheritDoc}
        */
        virtual bool evaluateExtracted(Object::View vExtracted) const;


    // ----- IndexAwareFilter interface -------------------------------------

    public:
        /**
        * {@inheritDoc}
        */
        virtual size32_t calculateEffectiveness(Map::View vMapIndexes,
                Set::View vSetKeys) const;

        /**
        * {@inheritDoc}
        */
        virtual Filter::View applyIndex(Map::View vMapIndexes,
                Set::Handle hSetKeys) const;
    };

COH_CLOSE_NAMESPACE3

#endif // COH_NOTEQUALS_FILTER_HPP

Copyright © 2000, 2011, Oracle and/or its affiliates. All rights reserved.