QMessageDataComparator Namespace

The QMessageDataComparator namespace contains types used in specifying the comparison of MessageStore objects with user-defined values. More...

 #include <QMessageDataComparator>

Types

enum	EqualityComparator { Equal, NotEqual }
enum	InclusionComparator { Includes, Excludes }
enum	LikeComparator { Like, NotLike }
enum	MatchFlag { MatchCaseSensitive, MatchFullWord }
flags	MatchFlags
enum	RelationComparator { LessThan, LessThanEqual, GreaterThan, GreaterThanEqual }

Detailed Description

The QMessageDataComparator namespace contains types used in specifying the comparison of MessageStore objects with user-defined values.

Type Documentation

enum QMessageDataComparator::EqualityComparator

Defines the comparison operations that can be used to compare data elements of QMessageManager objects for equality and inequality.

Constant	Value	Description
`QMessageDataComparator::Equal`	`0`	Represents the '==' operator.
`QMessageDataComparator::NotEqual`	`1`	Represents the '!=' operator.

enum QMessageDataComparator::InclusionComparator

Defines the comparison operations that can be used to compare data elements of QMessageManager objects for inclusion or exclusion.

Constant	Value	Description
`QMessageDataComparator::Includes`	`0`	Represents an operation in which an associated property is tested to determine whether it includes a value.
`QMessageDataComparator::Excludes`	`1`	Represents an operation in which an associated property is tested to determine whether it is equal to the supplied value.

enum QMessageDataComparator::LikeComparator

Defines the comparison operations that can be used to compare data elements of QMessageManager objects, according to a specific relation.

LikeComparator used the same syntax as an SQL like search, namely, '_' matches any single character and '%' matches zero or more characters. '' is used to escape these symbols and itself.

Constant	Value	Description
`QMessageDataComparator::Like`	`0`	Represents a postive match.
`QMessageDataComparator::NotLike`	`1`	Represent a negative match.

enum QMessageDataComparator::MatchFlag
flags QMessageDataComparator::MatchFlags

This enum describes additional matching criteria when performing a search.

Constant	Value	Description
`QMessageDataComparator::MatchCaseSensitive`	`Qt::MatchCaseSensitive`	The key should be case sensitive. Not supported on QMF platform.
`QMessageDataComparator::MatchFullWord`	`128`	The key should only match a complete word. Not supported on Windows and QMF platforms.

The MatchFlags type is a typedef for QFlags<MatchFlag>. It stores an OR combination of MatchFlag values.

enum QMessageDataComparator::RelationComparator