class QScxmlEvent¶

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

Synopsis¶

Properties¶

dataᅟ - The data included by the sender
delayᅟ - In milliseconds after which the event is to be delivered after processing the <send> element
errorEventᅟ - Whether the event represents an error
errorMessageᅟ - An error message for an error event, or an empty QString
eventTypeᅟ - The type of the event
invokeIdᅟ - The ID of the invoked state machine if the event is generated by one
nameᅟ - The name of the event
originᅟ - The URI that points to the origin of an SCXML event
originTypeᅟ - The origin type of an SCXML event
scxmlTypeᅟ - Event type
sendIdᅟ - The ID of the event

Methods¶

def __init__()
def clear()
def data()
def delay()
def errorMessage()
def eventType()
def invokeId()
def isErrorEvent()
def name()
def origin()
def originType()
def scxmlType()
def sendId()
def setData()
def setDelay()
def setErrorMessage()
def setEventType()
def setInvokeId()
def setName()
def setOrigin()
def setOriginType()
def setSendId()

Note

This documentation may contain snippets that were automatically translated from C++ to Python. We always welcome contributions to the snippet translation. If you see an issue with the translation, you can also let us know by creating a ticket on https:/bugreports.qt.io/projects/PYSIDE

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 .

See also

QScxmlStateMachine

class 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.

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.

Note

Properties can be used directly when from __feature__ import true_property is used or via accessor functions otherwise.

property dataᅟ: 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.

Access functions:

data()
setData()

property delayᅟ: int¶

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

Access functions:

delay()
setDelay()

property errorEventᅟ: bool¶

This property holds Whether the event represents an error..

Access functions:

isErrorEvent()

property errorMessageᅟ: str¶

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

Access functions:

errorMessage()
setErrorMessage()

property eventTypeᅟ: QScxmlEvent.EventType¶

This property holds the type of the event..

Access functions:

eventType()
setEventType()

property invokeIdᅟ: str¶

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

Access functions:

invokeId()
setInvokeId()

property nameᅟ: 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.

Access functions:

name()
setName()

property originᅟ: 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.

Access functions:

origin()
setOrigin()

property originTypeᅟ: str¶

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

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

Access functions:

originType()
setOriginType()

property scxmlTypeᅟ: str¶

This property holds The event type..

Access functions:

scxmlType()

property sendIdᅟ: 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.

Access functions:

sendId()
setSendId()

__init__()¶

Creates a new external SCXML event.

__init__(other)

Parameters:: other – QScxmlEvent

Constructs a copy of other.

clear()¶

Clears the contents of the event.

data()¶

Return type:: object

Returns the data included by the sender.

See also

setData()

Getter of property dataᅟ .

delay()¶

Return type:: int

Returns the delay in milliseconds after which this event is to be delivered after processing the <send> element.

See also

setDelay()

Getter of property delayᅟ .

errorMessage()¶

Return type:: str

If this is an error event, returns the error message. Otherwise, returns an empty QString.

See also

setErrorMessage()

Getter of property errorMessageᅟ .

eventType()¶

Return type:: EventType

Returns the type of this event.

See also

setEventType() EventType

Getter of property eventTypeᅟ .

invokeId()¶

Return type:: str

If this event is generated by an invoked state machine, returns the ID of the <invoke> element. Otherwise, returns an empty value.

See also

setInvokeId()

Getter of property invokeIdᅟ .

isErrorEvent()¶

Return type:: bool

Returns true when this is an error event, false otherwise.

Getter of property errorEventᅟ .

name()¶

Return type:: str

Returns the name of the event.

See also

setName()

Getter of property nameᅟ .

origin()¶

Return type:: str

Returns a URI that points to the origin of an SCXML event.

See also

setOrigin()

Getter of property originᅟ .

originType()¶

Return type:: str

Returns the origin type of an SCXML event.

See also

setOriginType()

Getter of property originTypeᅟ .

scxmlType()¶

Return type:: str

Returns the event type.

Getter of property scxmlTypeᅟ .

sendId()¶

Return type:: str

Returns the ID of the event.

See also

setSendId()

Getter of property sendIdᅟ .

setData(data)¶

Parameters:: data – object

Sets the payload data to data.

See also

data

Setter of property dataᅟ .

setDelay(delayInMiliSecs)¶

Parameters:: delayInMiliSecs – int

Sets the delay in milliseconds as the value of delayInMiliSecs.

See also

delay

Setter of property delayᅟ .

setErrorMessage(message)¶

Parameters:: message – str

If this is an error event, the message is set as the error message.

See also

errorMessage()

Setter of property errorMessageᅟ .

setEventType(type)¶

Parameters:: type – EventType

Sets the event type to type.

See also

eventType EventType

Setter of property eventTypeᅟ .

setInvokeId(invokeId)¶

Parameters:: invokeId – str

Sets the ID of an invoked state machine to invokeid.

See also

invokeId

Setter of property invokeIdᅟ .

setName(name)¶

Parameters:: name – str

Sets the name of the event to name.

See also

name()

Setter of property nameᅟ .

setOrigin(origin)¶

Parameters:: origin – str

Sets the origin of an SCXML event to origin.

See also

origin

Setter of property originᅟ .

setOriginType(originType)¶

Parameters:: originType – str

Sets the origin type of an SCXML event to origintype.

See also

originType

Setter of property originTypeᅟ .

setSendId(sendId)¶

Parameters:: sendId – str

Sets the ID sendid for this event.

See also

sendId()

Setter of property sendIdᅟ .