QgsFileBasedDataItemProvider Class Reference

A data item provider for file based data sources. More...

#include <qgsfilebaseddataitemprovider.h>

Inheritance diagram for QgsFileBasedDataItemProvider:

Public Member Functions
int	capabilities () const override
	Returns combination of flags from QgsDataProvider::DataCapabilities. More...
QgsDataItem *	createDataItem (const QString &path, QgsDataItem *parentItem) override
	Create a new instance of QgsDataItem (or nullptr) for given path and parent item. More...
bool	handlesDirectoryPath (const QString &path) override
	Returns true if the provider will handle the directory at the specified path. More...
QString	name () override
	Human-readable name of the provider name. More...
Public Member Functions inherited from QgsDataItemProvider
virtual	~QgsDataItemProvider ()=default
virtual int	capabilities () const =0
	Returns combination of flags from QgsDataProvider::DataCapabilities. More...
virtual QgsDataItem *	createDataItem (const QString &path, QgsDataItem *parentItem)=0
	Create a new instance of QgsDataItem (or nullptr) for given path and parent item. More...
virtual QVector< QgsDataItem * >	createDataItems (const QString &path, QgsDataItem *parentItem)
	Create a vector of instances of QgsDataItem (or nullptr) for given path and parent item. More...
virtual QString	dataProviderKey () const
	Returns the data provider key (if the data item provider is associated with a data provider), the default implementation returns an empty string. More...
virtual bool	handlesDirectoryPath (const QString &path)
	Returns true if the provider will handle the directory at the specified path. More...
virtual QString	name ()=0
	Human-readable name of the provider name. More...

Detailed Description

A data item provider for file based data sources.

This is a generic data item provider, which creates data items for file based data sources from registered providers (using the QgsProviderRegistry::querySublayers() API).

Since

QGIS 3.22

Definition at line 154 of file qgsfilebaseddataitemprovider.h.

Member Function Documentation

capabilities()

int QgsFileBasedDataItemProvider::capabilities ( ) const

overridevirtual

Returns combination of flags from QgsDataProvider::DataCapabilities.

Implements QgsDataItemProvider.

Definition at line 415 of file qgsfilebaseddataitemprovider.cpp.

createDataItem()

QgsDataItem * QgsFileBasedDataItemProvider::createDataItem ( const QString &  path, QgsDataItem *  parentItem  )

overridevirtual

Create a new instance of QgsDataItem (or nullptr) for given path and parent item.

Caller takes responsibility of deleting created items.

Implements QgsDataItemProvider.

Definition at line 420 of file qgsfilebaseddataitemprovider.cpp.

handlesDirectoryPath()

bool QgsFileBasedDataItemProvider::handlesDirectoryPath ( const QString &  path )

overridevirtual

Returns true if the provider will handle the directory at the specified path.

If the provider indicates that it will handle the directory, the default creation and population of directory items for the path will be avoided and it is left to the provider to correctly populate relevant entries for the path.

The default implementation returns false for all paths.

Since

QGIS 3.0

Reimplemented from QgsDataItemProvider.

Definition at line 539 of file qgsfilebaseddataitemprovider.cpp.

name()

QString QgsFileBasedDataItemProvider::name ( )

overridevirtual

Human-readable name of the provider name.

Implements QgsDataItemProvider.

Definition at line 410 of file qgsfilebaseddataitemprovider.cpp.

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

• /build/qgis-3.30.0+99sid/src/core/browser/qgsfilebaseddataitemprovider.h
• /build/qgis-3.30.0+99sid/src/core/browser/qgsfilebaseddataitemprovider.cpp