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1 #pragma once |
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2 |
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3 #include <string> |
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4 #include "../include/relpipe/reader/typedefs.h" |
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5 |
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6 namespace relpipe { |
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7 namespace reader { |
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8 |
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9 /** |
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10 * This class contains common features that are independent from particular data type (generic/template type) |
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11 */ |
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12 class DataTypeReaderBase { |
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13 private: |
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14 const integer_t typeId; |
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15 const string_t typeCode; |
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16 public: |
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17 |
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18 DataTypeReaderBase(const integer_t typeId, const string_t typeCode) : |
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19 typeId(typeId), typeCode(typeCode) { |
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20 } |
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21 |
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22 virtual ~DataTypeReaderBase() { |
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23 }; |
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24 |
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25 /** |
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26 * @param input input stream, should be at position where the value is to be read; the stream will not be closed afred reading |
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27 * @return read value in form of the string representation of given data type. |
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28 * E.g. integer 123 is returned as a character string "123", |
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29 * boolean true is returned as a character string "true". |
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30 * See Relational pipes format specification for details. |
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31 */ |
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32 virtual string_t readString(std::istream &input) = 0; |
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33 |
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34 /** |
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35 * @param dataType data type code as defined in DDP L0 |
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36 * @return whether this class supports conversions of this type |
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37 */ |
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38 virtual bool supports(const integer_t &dataType); |
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39 |
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40 /** |
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41 * @param dataType data type name as defined in DDP L0 |
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42 * @return whether this class supports conversions of this type |
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43 */ |
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44 virtual bool supports(const string_t &dataType); |
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45 |
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46 integer_t getTypeId(); |
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47 |
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48 string_t getTypeCode(); |
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49 }; |
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50 |
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51 } |
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52 } |