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Diffstat (limited to 'sdo-cpp/branches/sdo-cpp-pre2.1/runtime/core/src/commonj/sdo/SDOValue.h')
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diff --git a/sdo-cpp/branches/sdo-cpp-pre2.1/runtime/core/src/commonj/sdo/SDOValue.h b/sdo-cpp/branches/sdo-cpp-pre2.1/runtime/core/src/commonj/sdo/SDOValue.h new file mode 100644 index 0000000000..4b675974dd --- /dev/null +++ b/sdo-cpp/branches/sdo-cpp-pre2.1/runtime/core/src/commonj/sdo/SDOValue.h @@ -0,0 +1,258 @@ +/* +* +* Copyright 2007 The Apache Software Foundation or its licensors, as applicable. +* +* Licensed under the Apache License, Version 2.0 (the "License"); +* you may not use this file except in compliance with the License. +* You may obtain a copy of the License at +* +* http://www.apache.org/licenses/LICENSE-2.0 +* +* Unless required by applicable law or agreed to in writing, software +* distributed under the License is distributed on an "AS IS" BASIS, +* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +* See the License for the specific language governing permissions and +* limitations under the License. +*/ + +/* $Rev$ $Date$ */ + +#ifndef _SDOValue_H_ +#define _SDOValue_H_ + +#include "commonj/sdo/export.h" +#include "commonj/sdo/SDODate.h" +#include "commonj/sdo/SDOString.h" +#include "commonj/sdo/SDODataConverter.h" +#include "commonj/sdo/DataTypeInfo.h" + +#include <iostream> + +namespace commonj +{ + namespace sdo + { + + // The SDOValue class provides a discriminated data type that wraps the + // many different primitive data types that SDO must use. This allows + // common treatment of SDO values by all methods except those that + // really must do different things for different types. The key point is + // that instances of the class combine a union with and enum that says + // which member of the union is actually present. The enum also allows + // for the possibility that the value is unset or has been explicitly + // set to null. + + class SDOValue + { + private: + // Entities with copy constructors/destructors are not allowed in a union, + // since in general, the compiler doesn't know what type is + // actually in there so it can't know which constructor/destructor + // to call, hence the use of pointers for certain datatypes. + DataTypeInfo::SDODataTypeUnion value; + + DataTypeInfo::RawDataType typeOfValue; + + mutable SDOString* transient_buffer; + + public: + + // Constructors + SDO_API SDOValue(bool inValue) : + typeOfValue(DataTypeInfo::SDObool), transient_buffer(0) + { + value.Boolean = inValue; + } + SDO_API SDOValue(float inValue) : + typeOfValue(DataTypeInfo::SDOfloat), transient_buffer(0) + { + value.Float = inValue; + } + SDO_API SDOValue(long double inValue) : + typeOfValue(DataTypeInfo::SDOdouble), transient_buffer(0) + { + value.Double = inValue; + } + SDO_API SDOValue(short inValue) : + typeOfValue(DataTypeInfo::SDOshort), transient_buffer(0) + { + value.Short = inValue; + } +#if __WORDSIZE != 64 + SDO_API SDOValue(long inValue) : + typeOfValue(DataTypeInfo::SDOlong), transient_buffer(0) + { + value.Integer = inValue; + } +#endif + SDO_API SDOValue(int64_t inValue) : + typeOfValue(DataTypeInfo::SDOint64_t), transient_buffer(0) + { + value.Int64 = inValue; + } + SDO_API SDOValue(char inValue) : + typeOfValue(DataTypeInfo::SDOchar), transient_buffer(0) + { + value.Character = inValue; + } + SDO_API SDOValue(wchar_t inValue) : + typeOfValue(DataTypeInfo::SDOwchar_t), transient_buffer(0) + { + value.WideChar = inValue; + } + SDO_API SDOValue(const SDODate inValue) : + typeOfValue(DataTypeInfo::SDOSDODate), transient_buffer(0) + { + value.Date = new SDODate(inValue.getTime()); + } + SDO_API SDOValue(const SDOString& inValue) : + typeOfValue(DataTypeInfo::SDOCString), transient_buffer(0) + { + value.TextString = new SDOString(inValue); + } + + SDO_API SDOValue(const char* inValue) : + typeOfValue(DataTypeInfo::SDOCString), transient_buffer(0) + { + value.TextString = new SDOString(inValue); + } + + SDO_API SDOValue(const char* inValue, unsigned int len); + + SDO_API SDOValue(const wchar_t* inValue, unsigned int len); + + SDO_API SDOValue() : typeOfValue(DataTypeInfo::SDOunset), transient_buffer(0) + { + } + //End of Constructors + + // Copy constructor + SDO_API SDOValue(const SDOValue& inValue); + + // Copy assignment + SDO_API SDOValue& operator=(const SDOValue& inValue); + + // Destructor + SDO_API virtual ~SDOValue(); + + inline SDO_API bool isSet() const + { + return (typeOfValue != DataTypeInfo::SDOunset); + } + inline SDO_API bool isNull() const + { + return (typeOfValue == DataTypeInfo::SDOnull); + } + + // Get methods to retrieve the stored value. + SDO_API bool getBoolean() const + { + return SDODataConverter::convertToBoolean(value, + (DataTypeInfo::TrueDataType) typeOfValue); + } + + SDO_API float getFloat() const + { + return SDODataConverter::convertToFloat(value, + (DataTypeInfo::TrueDataType) typeOfValue); + } + + SDO_API long double getDouble() const + { + return SDODataConverter::convertToDouble(value, + (DataTypeInfo::TrueDataType) typeOfValue); + } + + SDO_API const SDODate getDate() const + { + return SDODataConverter::convertToDate(value, + (DataTypeInfo::TrueDataType) typeOfValue); + } + + SDO_API short getShort() const + { + return SDODataConverter::convertToShort(value, + (DataTypeInfo::TrueDataType) typeOfValue); + } + + SDO_API long getInteger() const + { + return SDODataConverter::convertToInteger(value, + (DataTypeInfo::TrueDataType) typeOfValue); + } + + SDO_API char getByte() const + { + return SDODataConverter::convertToByte(value, + (DataTypeInfo::TrueDataType) typeOfValue); + } + + SDO_API wchar_t getCharacter() const + { + return SDODataConverter::convertToCharacter(value, + (DataTypeInfo::TrueDataType) typeOfValue); + } + + SDO_API int64_t getLong() const + { + return SDODataConverter::convertToLong(value, + (DataTypeInfo::TrueDataType) typeOfValue); + } + + // The following method is regrettably necessary to provide the + // CString style interface for the V2.01 spec. + SDO_API const char* getCString() const + { + if (transient_buffer != 0) + { + delete transient_buffer; + } + transient_buffer = + SDODataConverter::convertToSDOString(value, + (DataTypeInfo::TrueDataType) typeOfValue); + return transient_buffer->c_str(); + } + + // This method is the preferred way to retrieve a string value + SDO_API SDOString getString() const + { + return *SDODataConverter::convertToSDOString(value, + (DataTypeInfo::TrueDataType) typeOfValue); + } + + SDO_API unsigned int getString(wchar_t* outptr, const unsigned int max_length) const + { + return SDODataConverter::convertToString(value, + (DataTypeInfo::TrueDataType) typeOfValue, + outptr, + max_length); + } + + SDO_API unsigned int getBytes(char* outptr, const unsigned int max_length) const + { + return SDODataConverter::convertToBytes(value, + (DataTypeInfo::TrueDataType) typeOfValue, + outptr, + max_length); + } + + // Beware, the array does not contain values for all the + // enumeration values and it is the callers job to avoid + // triggering that. + SDO_API const SDOString& convertTypeEnumToString() const + { + return DataTypeInfo::convertTypeEnumToString((DataTypeInfo::TrueDataType) typeOfValue); + } + + static SDO_API const SDOValue nullSDOValue; + static SDO_API const SDOValue unsetSDOValue; + // static SDO_API const SDOString rawTypeNames[]; + + private: + SDO_API SDOValue(DataTypeInfo::RawDataType rdt) : typeOfValue(rdt), transient_buffer(0) {} + + }; + } // End - namespace sdo +} // End - namespace commonj + +#endif // _SDOValue_H_ |