1 #pragma once

     2 

     3 #include <string>

     4 #include "typedefs.h"

     5 

     6 namespace relpipe {

     7 namespace reader {

     8 

     9 /**

    10  * This class contains common features that are independent from particular data type (generic/template type)

    11  */

    12 class DataTypeReaderBase {

    13 private:

    14 	const integer_t typeId;

    15 	const string_t typeCode;

    16 public:

    17 

    18 	DataTypeReaderBase(const integer_t typeId, const string_t typeCode) :

    19 	typeId(typeId), typeCode(typeCode) {

    20 	}

    21 

    22 	virtual ~DataTypeReaderBase() {

    23 	};

    24 

    25 	/**

    26 	 * @param input input stream, should be at position where the value is to be read; the stream will not be closed afred reading

    27 	 * @return read value in form of the string representation of given data type.

    28 	 * E.g. integer 123 is returned as a character string "123",

    29 	 * boolean true is returned as a character string "true".

    30 	 * See Relational pipes format specification for details.

    31 	 */

    32 	virtual string_t readString(std::istream &input) = 0;

    33 

    34 	/**

    35 	 * @param dataType data type code as defined in DDP L0

    36 	 * @return whether this class supports conversions of this type

    37 	 */

    38 	virtual bool supports(const integer_t &dataType);

    39 

    40 	/**

    41 	 * @param dataType data type name as defined in DDP L0

    42 	 * @return whether this class supports conversions of this type

    43 	 */

    44 	virtual bool supports(const string_t &dataType);

    45 

    46 	integer_t getTypeId();

    47 

    48 	string_t getTypeCode();

    49 };

    50 

    51 }

    52 }