Subgroup: Virtual
Class: QgsVirtualLayerTask¶
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class
qgis.core.
QgsVirtualLayerTask
(definition: QgsVirtualLayerDefinition)¶ Bases:
qgis._core.QgsTask
Constructor.
Parameters: definition – The definition to use for initializing the virtual layer Initializes a virtual layer with postpone mode activated and reloads the data in a separated thread.
New in version 3.2: Methods
cancel
Cancels the pending query and the parent task. childEvent
connectNotify
customEvent
definition
Returns the virtual layer definition. disconnectNotify
finished
isCanceled
isSignalConnected
layer
Returns the underlying virtual layer. receivers
run
Reloads the data. sender
senderSignalIndex
setProgress
takeLayer
Returns the underlying virtual layer and ownership. timerEvent
Signals
Attributes
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cancel
(self)¶ Cancels the pending query and the parent task.
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childEvent
()¶
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connectNotify
()¶
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customEvent
()¶
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definition
(self) → QgsVirtualLayerDefinition¶ Returns the virtual layer definition.
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disconnectNotify
()¶
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finished
()¶
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isCanceled
()¶
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isSignalConnected
()¶
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layer
(self) → QgsVectorLayer¶ Returns the underlying virtual layer.
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receivers
()¶
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run
(self) → bool¶ Reloads the data.
Returns: True if the virtual layer is valid, false otherwise.
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sender
()¶
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senderSignalIndex
()¶
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setProgress
()¶
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takeLayer
(self) → QgsVectorLayer¶ Returns the underlying virtual layer and ownership.
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timerEvent
()¶
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