Filter Class Reference

Filter elements with given expressions. More...

#include <Workspace/Application/filter.h>

Classes
class	Context

Public Types
typedef std::function< QVariant(int index)>	Accessor

Public Member Functions
	Filter ()
void	defineDateCompare (QString key, int index, QStringList ops={"=", "<", ">"})
void	defineStringCompare (QString key, int index, QStringList ops={"=", "!=", "<>", "~", "!~"})
Context	parse (const QString &filterString) const
	split filter string into standalone expressions each contains a form of key op value where the key is a single word, op is one of ops defined.
QString	removeExpression (const QString &filterString, const QString &key)
QString	replaceExpression (const QString &filterString, const QString &expression)
QStringList	splitExpression (const QString &filterString) const

Detailed Description

Stage 1: define compare of interest with define*Compare() methods Stage 2: use splitExpression() to construct a Context based on the filter expressions Stage 3: use the Context to filter elements

Member Typedef Documentation

Accessor

typedef std::function<QVariant(int index)> Accessor

Constructor & Destructor Documentation

Filter()

Filter

(

)

Member Function Documentation

defineDateCompare()

void defineDateCompare ( QString  key, int  index, QStringList  ops = {"=", "<", ">"}  )

inline

defineStringCompare()

void defineStringCompare ( QString  key, int  index, QStringList  ops = {"=", "!=", "<>", "~", "!~"}  )

inline

parse()

Filter::Context parse

(

const QString &

filterString

)

const

See also

defineOp()

removeExpression()

QString removeExpression	(	const QString &	filterString,
		const QString &	key
	)

replaceExpression()

QString replaceExpression	(	const QString &	filterString,
		const QString &	expression
	)

splitExpression()

QStringList splitExpression

(

const QString &

filterString

)

const