QScxmlEvent

The QScxmlEvent class is an event for a Qt SCXML state machine. More

Inheritance diagram of PySide2.QtScxml.QScxmlEvent

Synopsis

Functions

Detailed Description

SCXML events drive transitions. Most events are generated by using the <raise> and <send> elements in the application. The state machine automatically generates some mandatory events, such as errors.

For more information, see SCXML Specification - 5.10.1 The Internal Structure of Events . For more information about how the Qt SCXML API differs from the specification, see SCXML Compliance .

class PySide2.QtScxml.QScxmlEvent

PySide2.QtScxml.QScxmlEvent(other)

param other

PySide2.QtScxml.QScxmlEvent

Creates a new external SCXML event.

Constructs a copy of other .

PySide2.QtScxml.QScxmlEvent.EventType

This enum type specifies the type of an SCXML event:

Constant

Description

QScxmlEvent.PlatformEvent

An event generated internally by the state machine. For example, errors.

QScxmlEvent.InternalEvent

An event generated by a <raise> element.

QScxmlEvent.ExternalEvent

An event generated by a <send> element.

PySide2.QtScxml.QScxmlEvent.clear()

Clears the contents of the event.

PySide2.QtScxml.QScxmlEvent.data()
Return type

object

This property holds the data included by the sender..

When <param> elements are used in the <send> element, the data will contain a QVariantMap where the key is the name attribute, and the value is taken from the expr attribute or the location attribute.

When a <content> element is used, the data will contain a single item with either the value of the expr attribute of the <content> element or the child data of the <content> element.

PySide2.QtScxml.QScxmlEvent.delay()
Return type

int

This property holds The delay in milliseconds after which the event is to be delivered after processing the <send> element..

PySide2.QtScxml.QScxmlEvent.errorMessage()
Return type

str

This property holds An error message for an error event, or an empty QString ..

PySide2.QtScxml.QScxmlEvent.eventType()
Return type

EventType

This property holds the type of the event..

PySide2.QtScxml.QScxmlEvent.invokeId()
Return type

str

This property holds the ID of the invoked state machine if the event is generated by one..

PySide2.QtScxml.QScxmlEvent.isErrorEvent()
Return type

bool

This property holds Whether the event represents an error..

PySide2.QtScxml.QScxmlEvent.name()
Return type

str

This property holds the name of the event..

If the event is generated inside the SCXML document, this property holds the value of the event attribute specified inside the <raise> or <send> element.

If the event is created in the C++ code and submitted to the QScxmlStateMachine , the value of this property is matched against the value of the event attribute specified inside the <transition> element in the SCXML document.

PySide2.QtScxml.QScxmlEvent.origin()
Return type

str

This property holds the URI that points to the origin of an SCXML event..

The origin is equivalent to the target attribute of the <send> element.

PySide2.QtScxml.QScxmlEvent.originType()
Return type

str

This property holds the origin type of an SCXML event..

The origin type is equivalent to the type attribute of the <send> element.

PySide2.QtScxml.QScxmlEvent.scxmlType()
Return type

str

This property holds The event type..

PySide2.QtScxml.QScxmlEvent.sendId()
Return type

str

This property holds the ID of the event..

The ID is used by the <cancel> element to identify the event to be canceled.

Note

The state machine generates a unique ID if the id attribute is not specified in the <send> element. The generated ID can be accessed through this property.

PySide2.QtScxml.QScxmlEvent.setData(data)
Parameters

data – object

This property holds the data included by the sender..

When <param> elements are used in the <send> element, the data will contain a QVariantMap where the key is the name attribute, and the value is taken from the expr attribute or the location attribute.

When a <content> element is used, the data will contain a single item with either the value of the expr attribute of the <content> element or the child data of the <content> element.

PySide2.QtScxml.QScxmlEvent.setDelay(delayInMiliSecs)
Parameters

delayInMiliSecs – int

This property holds The delay in milliseconds after which the event is to be delivered after processing the <send> element..

PySide2.QtScxml.QScxmlEvent.setErrorMessage(message)
Parameters

message – str

This property holds An error message for an error event, or an empty QString ..

PySide2.QtScxml.QScxmlEvent.setEventType(type)
Parameters

typeEventType

This property holds the type of the event..

PySide2.QtScxml.QScxmlEvent.setInvokeId(invokeId)
Parameters

invokeId – str

This property holds the ID of the invoked state machine if the event is generated by one..

PySide2.QtScxml.QScxmlEvent.setName(name)
Parameters

name – str

This property holds the name of the event..

If the event is generated inside the SCXML document, this property holds the value of the event attribute specified inside the <raise> or <send> element.

If the event is created in the C++ code and submitted to the QScxmlStateMachine , the value of this property is matched against the value of the event attribute specified inside the <transition> element in the SCXML document.

PySide2.QtScxml.QScxmlEvent.setOrigin(origin)
Parameters

origin – str

This property holds the URI that points to the origin of an SCXML event..

The origin is equivalent to the target attribute of the <send> element.

PySide2.QtScxml.QScxmlEvent.setOriginType(originType)
Parameters

originType – str

This property holds the origin type of an SCXML event..

The origin type is equivalent to the type attribute of the <send> element.

PySide2.QtScxml.QScxmlEvent.setSendId(sendId)
Parameters

sendId – str

This property holds the ID of the event..

The ID is used by the <cancel> element to identify the event to be canceled.

Note

The state machine generates a unique ID if the id attribute is not specified in the <send> element. The generated ID can be accessed through this property.