QIfAbstractQueryTerm Class

The base class of all query terms. More...

Header: #include <QIfAbstractQueryTerm>
qmake: QT += interfaceframework
Inherited By:

QIfConjunctionTerm, QIfFilterTerm, and QIfScopeTerm

Public Types

enum Type { FilterTerm, ConjunctionTerm, ScopeTerm }

Public Functions

virtual QString toString() const = 0
virtual QIfAbstractQueryTerm::Type type() const = 0

Detailed Description

Following terms are supported:

QIfConjunctionTerm

The representation of a conjunction between two query terms

QIfFilterTerm

The representation of a filter

QIfScopeTerm

The representation of a scope which can hold another term

See Qt Interface Framework Query Language for how it can be used.

Member Type Documentation

enum QIfAbstractQueryTerm::Type

ConstantValueDescription
QIfAbstractQueryTerm::FilterTerm0A filter term stands for a filter which checks a specific identifier against a given value.
QIfAbstractQueryTerm::ConjunctionTerm1A conjunction term can combine multiple terms together, either by a OR or an AND conjunction.
QIfAbstractQueryTerm::ScopeTerm2A scope term is used to group terms together, e.g. to apply a negation to a group.

Member Function Documentation

[pure virtual] QString QIfAbstractQueryTerm::toString() const

Returns a string representation of the query.

[pure virtual] QIfAbstractQueryTerm::Type QIfAbstractQueryTerm::type() const

Returns the type of this query term.

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