Represents a transaction group. More...

#include <qgstransactiongroup.h>

Inheritance diagram for QgsTransactionGroup:

Signals
void	commitError (const QString &msg)
	Will be emitted whenever there is a commit error.

Public Member Functions
	QgsTransactionGroup (QObject *parent=nullptr)
	Constructor for QgsTransactionGroup.
bool	addLayer (QgsVectorLayer *layer)
	Add a layer to this transaction group.
QString	connString () const
	Returns the connection string used by this transaction group.
bool	isEmpty () const
	Returns `true` if there are no layers in this transaction group.
QSet< QgsVectorLayer * >	layers () const
	Gets the set of layers currently managed by this transaction group.
bool	modified () const
	Returns `true` if any of the layers in this group reports a modification.
QString	providerKey () const
	Returns the provider key used by this transaction group.

Detailed Description

Represents a transaction group.

Definition at line 34 of file qgstransactiongroup.h.

Constructor & Destructor Documentation

◆ QgsTransactionGroup()

QgsTransactionGroup::QgsTransactionGroup ( QObject * parent = nullptr )

explicit

Constructor for QgsTransactionGroup.

Definition at line 28 of file qgstransactiongroup.cpp.

Member Function Documentation

◆ addLayer()

bool QgsTransactionGroup::addLayer ( QgsVectorLayer * layer )

Add a layer to this transaction group.

Will return true if it is compatible and has been added.

Definition at line 34 of file qgstransactiongroup.cpp.

◆ commitError

void QgsTransactionGroup::commitError ( const QString & msg )

signal

Will be emitted whenever there is a commit error.

◆ connString()

QString QgsTransactionGroup::connString ( ) const

Returns the connection string used by this transaction group.

Layers need be compatible when added.

Definition at line 207 of file qgstransactiongroup.cpp.

◆ isEmpty()

bool QgsTransactionGroup::isEmpty ( ) const

Returns true if there are no layers in this transaction group.

Definition at line 202 of file qgstransactiongroup.cpp.

◆ layers()

QSet< QgsVectorLayer * > QgsTransactionGroup::layers ( ) const

Gets the set of layers currently managed by this transaction group.

Returns: Layer set

Definition at line 58 of file qgstransactiongroup.cpp.

◆ modified()

bool QgsTransactionGroup::modified ( ) const

Returns true if any of the layers in this group reports a modification.

Definition at line 63 of file qgstransactiongroup.cpp.

◆ providerKey()

QString QgsTransactionGroup::providerKey ( ) const

Returns the provider key used by this transaction group.