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1 /**
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2 * Palanthir - A Lightweight, RESTful DICOM Store
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3 * Copyright (C) 2012 Medical Physics Department, CHU of Liege,
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4 * Belgium
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5 *
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6 * Redistribution and use in source and binary forms, with or without
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7 * modification, are permitted provided that the following conditions are
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8 * met:
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9 *
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10 * * Redistributions of source code must retain the above copyright
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11 * notice, this list of conditions and the following disclaimer.
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12 * * Redistributions in binary form must reproduce the above
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13 * copyright notice, this list of conditions and the following disclaimer
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14 * in the documentation and/or other materials provided with the
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15 * distribution.
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16 * * Neither the name of the CHU of Liege, nor the names of its
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17 * contributors may be used to endorse or promote products derived
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18 * from this software without specific prior written permission.
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19 *
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20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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21 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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22 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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23 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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24 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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25 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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26 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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30 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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31 **/
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32
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33
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34 #pragma once
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35
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36 #include "FunctionContext.h"
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37
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38 namespace Palanthir
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39 {
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40 namespace SQLite
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41 {
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42 class IScalarFunction : public boost::noncopyable
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43 {
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44 public:
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45 virtual ~IScalarFunction()
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46 {
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47 }
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48
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49 virtual const char* GetName() const = 0;
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50
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51 virtual unsigned int GetCardinality() const = 0;
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52
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53 virtual void Compute(FunctionContext& context) = 0;
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54 };
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55 }
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56 }
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