Library: Data
Package: DataCore
Header: Poco/Data/AbstractBinding.h
Description
AbstractBinding connects a value with a placeholder via an AbstractBinder interface.
Inheritance
Known Derived Classes: Binding, CopyBinding, BulkBinding
Member Summary
Member Functions: bind, bulkSize, canBind, getBinder, getDirection, isBulk, name, numOfColumnsHandled, numOfRowsHandled, reset, setBinder
Types Aliases
BinderPtr
using BinderPtr = AbstractBinder::Ptr;
Ptr
using Ptr = SharedPtr < AbstractBinding >;
Enumerations
Direction
PD_IN = AbstractBinder::PD_IN
PD_OUT = AbstractBinder::PD_OUT
PD_IN_OUT = AbstractBinder::PD_IN_OUT
Constructors
AbstractBinding
AbstractBinding(
const std::string & name = "",
Direction direction = PD_IN,
Poco::UInt32 bulkSize = 0
);
Creates the AbstractBinding.
Destructor
~AbstractBinding 
virtual ~AbstractBinding();
Destroys the AbstractBinding.
Member Functions
bind
virtual void bind(
std::size_t pos
) = 0;
Binds a value to the given column position
bulkSize 
Poco::UInt32 bulkSize() const;
Returns the size of the bulk binding.
canBind
virtual bool canBind() const = 0;
Returns true if we have enough data to bind
getBinder
BinderPtr getBinder() const;
Returns the AbstractBinder used for binding data.
getDirection
AbstractBinder::Direction getDirection() const;
Returns the binding direction.
isBulk
bool isBulk() const;
Returns true if extraction is bulk.
name
const std::string & name() const;
Returns the name for this binding.
numOfColumnsHandled
virtual std::size_t numOfColumnsHandled() const = 0;
Returns the number of columns that the binding handles.
The trivial case will be one single column but when complex types are used this value can be larger than one.
numOfRowsHandled
virtual std::size_t numOfRowsHandled() const = 0;
Returns the number of rows that the binding handles.
The trivial case will be one single row but for collection data types it can be larger.
reset
virtual void reset() = 0;
Allows a binding to be reused.
setBinder
void setBinder(
BinderPtr pBinder
);
Sets the object used for binding; object does NOT take ownership of the pointer.