ConstrainedDataObject Class Reference

a DataObject with constraints This DataObject prevents the setProperty() from succeeding if the value which is passed does not fall into the constraints, as specified by a singleton ConstraintGroup. More...

#include <constraineddataobject.h>

Inheritance diagram for ConstrainedDataObject:

[legend]Collaboration diagram for ConstrainedDataObject:

[legend]List of all members.

Public Member Functions
virtual bool	setProperty (const QString &propName, const QVariant &qv)
	Overrides, hides, and if it satisfies, calls the base class method too!
virtual bool	setProperty (const char *propName, const QVariant &qv)
QString	validInputs (QString propertyName) const
	Returns: a string representing any input constraints on a particular property
Static Public Member Functions
static ConstraintGroup &	ConstraintMgr ()
	Returns: a singleton instance of a ConstraintGroup.

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Detailed Description

a DataObject with constraints This DataObject prevents the setProperty() from succeeding if the value which is passed does not fall into the constraints, as specified by a singleton ConstraintGroup.

Deprecated:

• this class is an anti-pattern. it puts too much responsibility on the base class, and mixes purposes of an object. Constraints should be separate objects from the dataobjects they constrain, so that we can have a many:1 relationship between them. Do not use this class.

Definition at line 21 of file constraineddataobject.h.

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Member Function Documentation

ConstraintGroup & ConstrainedDataObject::ConstraintMgr

(

)

[static]

Returns:

a singleton instance of a ConstraintGroup.

This particular one is checked in every call to DataObject::setProperty()

You can add Constraint instances to this, to impose input Constraint on some DataObject-derived classes.

Definition at line 5 of file constraineddataobject.cpp.

Referenced by CanadaAddress::initConstraints(), UsAddress::initConstraints(), setProperty(), and validInputs().

bool ConstrainedDataObject::setProperty	(	const QString &	propName,
		const QVariant &	qv
	)			[virtual]

Overrides, hides, and if it satisfies, calls the base class method too!

Parameters:

	propertyName	name of property to set
	value	value to set property

Returns:

true if value satisfies the regexp constraint for this property and value is set. These methods will not be called if you use the QObject interface.

Reimplemented from DataObject.

Definition at line 17 of file constraineddataobject.cpp.

References Constraint::accepts(), DataObject::className(), ConstraintMgr(), ConstraintGroup::getConstraint(), and DataObject::setProperty().

Referenced by setProperty().

Here is the call graph for this function:

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

• docs/src/libs/dataobjects/constraineddataobject.h
• docs/src/libs/dataobjects/constraineddataobject.cpp

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