class AbstractBinding

Library: Data
Package: DataCore
Header: Poco/Data/AbstractBinding.h


AbstractBinding connects a value with a placeholder via an AbstractBinder interface.


Direct Base Classes: Poco::RefCountedObject

All Base Classes: Poco::RefCountedObject

Known Derived Classes: Binding

Member Summary

Member Functions: bind, canBind, getBinder, numOfColumnsHandled, numOfRowsHandled, reset, setBinder

Inherited Functions: duplicate, referenceCount, release




Creates the AbstractBinding.


~AbstractBinding virtual

virtual ~AbstractBinding();

Destroys the AbstractBinding.

Member Functions

bind virtual

virtual void bind(
    std::size_t pos
) = 0;

Binds a value to the given column position

canBind virtual

virtual bool canBind() const = 0;

Returns true if we have enough data to bind

getBinder inline

AbstractBinder * getBinder() const;

Returns the AbstractBinder used for binding data.

numOfColumnsHandled virtual

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

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 (ie vector) it can be larger.

reset virtual

virtual void reset() = 0;

Allows a binding to be reused.

setBinder inline

void setBinder(
    AbstractBinder * pBinder

Sets the object used for binding; object does NOT take ownership of the pointer.