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nvl

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This commit is contained in:
Aleksandar Fabijanic
2007-09-13 22:43:37 +00:00
parent 8f01713202
commit 2fa2a98714
1 changed files with 22 additions and 0 deletions
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22
Data/include/Poco/Data/RecordSet.h
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@@ -179,6 +179,28 @@ public:
DynamicAny value(const std::string& name, std::size_t row) const; DynamicAny value(const std::string& name, std::size_t row) const;
/// Returns the data value at named column, row location. /// Returns the data value at named column, row location.
template <typename C>
DynamicAny nvl(const std::string& name, const C& deflt)
/// Returns the value in the named column of the current row
/// if the value is not NULL, or deflt otherwise.
{
if (isNull(name))
return DynamicAny(deflt);
else
return value(name);
}
template <typename C>
DynamicAny nvl(std::size_t index, const C& deflt)
/// Returns the value in the given column of the current row
/// if the value is not NULL, or deflt otherwise.
{
if (isNull(index))
return DynamicAny(deflt);
else
return value(index);
}
const RowIterator& begin(); const RowIterator& begin();
/// Moves the row cursor to the first row and returns the pointer to row. /// Moves the row cursor to the first row and returns the pointer to row.