Constraint Class Reference

base class for describing value constraints QVariant-based Constrant. More...

#include <constraint.h>

Inheritance diagram for Constraint:

[legend]List of all members.

Public Member Functions
	Constraint (bool always=true)
virtual bool	accepts (QVariant) const
	Parameters: value  the value to check the constraint against
virtual QString	toString () const
	Returns: an informative string describing this constraint (XML)

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Detailed Description

base class for describing value constraints QVariant-based Constrant.

Constraint describes a value range or set, of any type supported by QVariant.

Constraint objects are used for describing ranges of values in a single dimenison.

Deprecated:

• use QValidator instead, which checks the values before the user can submit an invalid value.

Definition at line 23 of file constraint.h.

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Member Function Documentation

virtual bool Constraint::accepts

(

QVariant

)

const [inline, virtual]

Parameters:

value

the value to check the constraint against

Returns:

true if the value is accepted by this constraint

Reimplemented in IsoDateFormatConstraint, RegexConstraint, EnumConstraint, DoubleRangeConstraint, AndConstraint, and AlwaysConstraint.

Definition at line 35 of file constraint.h.

Referenced by ConstraintGroup::filter(), and ConstrainedDataObject::setProperty().

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The documentation for this class was generated from the following file:

• docs/src/libs/dataobjects/constraint.h

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