本文整理汇总了C++中BlobImpl::GetId方法的典型用法代码示例。如果您正苦于以下问题：C++ BlobImpl::GetId方法的具体用法？C++ BlobImpl::GetId怎么用？C++ BlobImpl::GetId使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类BlobImpl的用法示例。
在下文中一共展示了BlobImpl::GetId方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: SetValue
//.........这里部分代码省略.........
{
*(int64_t*)var->sqldata = *(int64_t*)value;
}
else if (ivType == ivFloat)
{
// This SQL_INT64 is a NUMERIC(x,y), scale it !
double multiplier = consts::dscales[-var->sqlscale];
*(int64_t*)var->sqldata =
(int64_t)floor(*(float*)value * multiplier + 0.5);
}
else if (ivType == ivDouble)
{
// This SQL_INT64 is a NUMERIC(x,y), scale it !
double multiplier = consts::dscales[-var->sqlscale];
*(int64_t*)var->sqldata =
(int64_t)floor(*(double*)value * multiplier + 0.5);
}
else throw WrongTypeImpl("RowImpl::SetValue", var->sqltype, ivType,
_("Incompatible types."));
break;
case SQL_FLOAT :
if (ivType != ivFloat || var->sqlscale != 0)
throw WrongTypeImpl("RowImpl::SetValue", var->sqltype, ivType,
_("Incompatible types."));
*(float*)var->sqldata = *(float*)value;
break;
case SQL_DOUBLE :
if (ivType != ivDouble)
throw WrongTypeImpl("RowImpl::SetValue", var->sqltype, ivType,
_("Incompatible types."));
if (var->sqlscale != 0)
{
// Round to scale of NUMERIC(x,y)
double multiplier = consts::dscales[-var->sqlscale];
*(double*)var->sqldata =
floor(*(double*)value * multiplier + 0.5) / multiplier;
}
else *(double*)var->sqldata = *(double*)value;
break;
case SQL_TIMESTAMP :
if (ivType != ivTimestamp)
throw WrongTypeImpl("RowImpl::SetValue", var->sqltype, ivType,
_("Incompatible types."));
encodeTimestamp(*(ISC_TIMESTAMP*)var->sqldata, *(IBPP::Timestamp*)value);
break;
case SQL_TYPE_DATE :
if (ivType != ivDate)
throw WrongTypeImpl("RowImpl::SetValue", var->sqltype, ivType,
_("Incompatible types."));
encodeDate(*(ISC_DATE*)var->sqldata, *(IBPP::Date*)value);
break;
case SQL_TYPE_TIME :
if (ivType != ivTime)
throw WrongTypeImpl("RowImpl::SetValue", var->sqltype, ivType,
_("Incompatible types."));
encodeTime(*(ISC_TIME*)var->sqldata, *(IBPP::Time*)value);
break;
case SQL_BLOB :
if (ivType == ivBlob)
{
BlobImpl* blob = (BlobImpl*)value;
blob->GetId((ISC_QUAD*)var->sqldata);
}
else if (ivType == ivString)
{
BlobImpl blob(mDatabase, mTransaction);
blob.Save(*(std::string*)value);
blob.GetId((ISC_QUAD*)var->sqldata);
}
else throw WrongTypeImpl("RowImpl::SetValue", var->sqltype, ivType,
_("Incompatible types."));
break;
case SQL_ARRAY :
if (ivType != ivArray)
throw WrongTypeImpl("RowImpl::SetValue", var->sqltype, ivType,
_("Incompatible types."));
{
ArrayImpl* array = (ArrayImpl*)value;
array->GetId((ISC_QUAD*)var->sqldata);
// When an array has been affected to a column, we want to reset
// its ID. This way, the next WriteFrom() on the same Array object
// will allocate a new ID. This protects against storing the same
// array ID in multiple columns or rows.
array->ResetId();
}
break;
default : throw LogicExceptionImpl("RowImpl::SetValue",
_("The field uses an unsupported SQL type !"));
}
if (var->sqltype & 1) *var->sqlind = 0; // Remove the 0 flag
}