author | František Kučera <franta-hg@frantovo.cz> |
Sat, 14 Jul 2018 17:01:16 +0200 | |
branch | v_0 |
changeset 2 | fc3a84a62dd9 |
parent 1 | include/DataTypeWriterBase.h@c80d55cdb42d |
child 4 | da021e58c946 |
permissions | -rw-r--r-- |
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#pragma once |
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#include <string> |
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#include "typedefs.h" |
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namespace relpipe { |
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namespace writer { |
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/** |
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* This class contains common features that are independent from particular data type (generic/template type) |
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*/ |
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class DataTypeReaderBase { |
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private: |
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const integer_t typeId; |
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const string_t typeCode; |
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public: |
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DataTypeReaderBase(const integer_t typeId, const string_t typeCode) : |
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typeId(typeId), typeCode(typeCode) { |
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} |
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virtual ~DataTypeReaderBase() { |
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}; |
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/** |
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* @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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* @return read value in form of the string representation of given data type. |
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* E.g. integer 123 is returned as a character string "123", |
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* boolean true is returned as a character string "true". |
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* See Relational pipes format specification for details. |
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*/ |
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virtual string_t readString(std::istream &input) = 0; |
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/** |
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* @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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* @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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* E.g. integer 123 is passed as a character string "123" |
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* boolean true is passed as a character string "true". |
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* See Relational pipes format specification for details. |
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*/ |
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virtual void writeString(std::ostream& output, const string_t &stringValue) = 0; |
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/** |
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* @param dataType data type code as defined in DDP L0 |
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* @return whether this class supports conversions of this type |
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*/ |
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virtual bool supports(const integer_t &dataType); |
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/** |
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* @param dataType data type name as defined in DDP L0 |
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* @return whether this class supports conversions of this type |
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*/ |
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virtual bool supports(const string_t &dataType); |
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integer_t getTypeId(); |
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string_t getTypeCode(); |
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}; |
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} |
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} |