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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/typedefs.h" |
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5 |
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6 namespace relpipe { |
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7 namespace writer { |
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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 DataTypeWriterBase { |
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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 DataTypeWriterBase(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 ~DataTypeWriterBase() { |
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23 }; |
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24 |
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25 /** |
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26 * @param output output stream, should be at position where the value is to be written; the stream will not be closed not flushed after writing |
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27 * @param stringValue write value as given data type (e.g. integer or boolean); stringValue parameter contains given value in string representation of given data type |
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28 * E.g. integer 123 is passed as a character string "123" |
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29 * boolean true is passed 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 void writeString(std::ostream& output, const string_t &stringValue) = 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 return dataType == typeId; |
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40 } |
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41 |
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42 /** |
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43 * @param dataType data type name as defined in DDP L0 |
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44 * @return whether this class supports conversions of this type |
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45 */ |
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46 virtual bool supports(const string_t &dataType) { |
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47 return dataType == typeCode; |
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48 } |
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49 |
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50 integer_t getTypeId() { |
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51 return typeId; |
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52 } |
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53 |
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54 string_t getTypeCode() { |
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55 return typeCode; |
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56 } |
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57 }; |
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58 |
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59 } |
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60 } |