Oracle Coherence for C++ API
Release 3.6.0.0
E15728-01

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# coherence/util/processor/ExtractorProcessor.hpp

    00001 /*
    00002 * ExtractorProcessor.hpp
    00003 *
    00004 * Copyright (c) 2000, 2010, Oracle and/or its affiliates. All rights reserved.
    00005 *
    00006 * Oracle is a registered trademarks of Oracle Corporation and/or its
    00007 * affiliates.
    00008 *
    00009 * This software is the confidential and proprietary information of Oracle
    00010 * Corporation. You shall not disclose such confidential and proprietary
    00011 * information and shall use it only in accordance with the terms of the
    00012 * license agreement you entered into with Oracle.
    00013 *
    00014 * This notice may not be removed or altered.
    00015 */
    00016 #ifndef COH_EXTRACTOR_PROCESSOR_HPP
    00017 #define COH_EXTRACTOR_PROCESSOR_HPP
    00018
    00019 #include "coherence/lang.ns"
    00020
    00021 #include "coherence/io/pof/PofReader.hpp"
    00022 #include "coherence/io/pof/PofWriter.hpp"
    00023 #include "coherence/io/pof/PortableObject.hpp"
    00024 #include "coherence/util/InvocableMap.hpp"
    00025 #include "coherence/util/ValueExtractor.hpp"
    00026 #include "coherence/util/processor/AbstractProcessor.hpp"
    00027
    00028 COH_OPEN_NAMESPACE3(coherence,util, processor)
    00029
    00030 using coherence::io::pof::PofReader;
    00031 using coherence::io::pof::PofWriter;
    00032 using coherence::io::pof::PortableObject;
    00033 using coherence::util::InvocableMap;
    00034 using coherence::util::ValueExtractor;
    00035
    00036
    00037 /**
    00038 * ExtractorProcessor is an EntryProcessor implementations that extracts a
    00039 * value from an object cached in an InvocableMap.
    00040 *
    00041 * @author tb  2008.04.28
    00042 */
    00043 class COH_EXPORT ExtractorProcessor
    00044     : public class_spec<ExtractorProcessor,
    00045         extends<AbstractProcessor>,
    00046         implements<PortableObject> >
    00047     {
    00048     friend class factory<ExtractorProcessor>;
    00049
    00050     // ----- constructors ---------------------------------------------------
    00051
    00052     protected:
    00053         /**
    00054         * Construct a ExtractorProcessor.
    00055         */
    00056         ExtractorProcessor();
    00057
    00058         /**
    00059         * Construct an ExtractorProcessor based on the specified
    00060         * ValueExtractor.
    00061         *
    00062         * @param vExtractor  a ValueExtractor object; passing null is
    00063         *                   equivalent to using the IdentityExtractor
    00064         */
    00065         ExtractorProcessor(ValueExtractor::View vExtractor);
    00066
    00067
    00068     // ----- InvocableMap::EntryProcessor interface -------------------------
    00069
    00070     public:
    00071         /**
    00072         * {@inheritDoc}
    00073         */
    00074         virtual Object::Holder process(InvocableMap::Entry::Handle hEntry) const;
    00075
    00076
    00077     // ----- PortableObject interface ---------------------------------------
    00078
    00079     public:
    00080         /**
    00081         * {@inheritDoc}
    00082         */
    00083         virtual void readExternal(PofReader::Handle hIn);
    00084
    00085         /**
    00086         * {@inheritDoc}
    00087         */
    00088         virtual void writeExternal(PofWriter::Handle hOut) const;
    00089
    00090
    00091     // ----- Object interface -----------------------------------------------
    00092
    00093     public:
    00094         /**
    00095         * {@inheritDoc}
    00096         */
    00097         virtual bool equals(Object::View v) const;
    00098
    00099         /**
    00100         * {@inheritDoc}
    00101         */
    00102         virtual size32_t hashCode() const;
    00103
    00104
    00105     // ----- data members ---------------------------------------------------
    00106
    00107     protected:
    00108         /**
    00109         * The underlying value extractor.
    00110         */
    00111         MemberView<ValueExtractor> m_vExtractor;
    00112     };
    00113
    00114 COH_CLOSE_NAMESPACE3
    00115
    00116 #endif // COH_EXTRACTOR_PROCESSOR_HPP

Copyright © 2000, 2010, Oracle and/or its affiliates. All rights reserved.