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Process
WS-BPEL 2.0 process root element. The Process element is present in
the BPEL Designer diagram by default.
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Supported Elements
extensions
import
partnerLinks
variables
correlationSets
faultHandlers
eventHandlers
Supported Attributes
Not Supported
queryLanguage (xpath only)
expressionLanguage (xpath only)
suppressJoinFailure
abstractProcess
exitOnStandardFault
Extensions
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Variable
Supplies the mechanism used to hold messages that make up the state
of a business process.
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Supported Elements
name
messageType
type
element
Supported Attributes
Extensions
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Correlation
Tracks the multiple long-running exchanges of messages that typically
take place between a BPEL process and its partner services. The correlation
mechanism helps to route messages to appropriate process instances.
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Supported Elements
Supported Attributes
Extensions
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EventHandlers
Invokes a specific action concurrently with a specified corresponding
event.
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Supported Elements
Supported Attributes
Extensions
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FaultHandlers
Defines the activities that are executed as a response to faults resulting
from invoked services.
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Supported Elements
Supported Attributes
Extensions
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Import
Used within a process to clearly express dependency upon external XML
Schema or WSDL definitions. The Process element can have any number of Import
elements as initial children, preceeding any other child element.
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Supported Elements
Supported Attributes
namespace
location
importType
Extensions
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Web Services
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Invoke
Invokes a one-way or request-response operation on a portType offered
by a partner. It enables the business process to send messages to partners.
The operation is defined in the partner's WSDL file.
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Supported Elements
correlations
toPart
fromPart
Not Supported
catch
catchAll
compensationHandler
Supported Attributes
partnerLink
portType
operation
inputVariable
outputVariable
Extensions
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Receive
Allows the business process to do a blocking wait for a particular message
to arrive.
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Supported Elements
Supported Attributes
partnerLink
portType
operation
Variable
createInstance
messageExchange
Extensions
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Reply
Returns a message from the process to the same partner that initiated
the operation. The combination of Receive and Reply activities creates a request-response
operation.
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Supported Elements
Supported Attributes
partnerLink
portType
operation
Variable
faultName
messageExchange
Extensions
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PartnerLink
Identifies the parties that interact with your business process. Each
link is defined by a partner link type and a role name.
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Supported Elements
Supported Attributes
name
partnerLinkType
myRole
partnerRole
Not Supported
Extensions
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Basic Activities
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Assign
Assigns values to variables. You use the Assign element to copy data
from one variable to another, construct and calculate the values of expressions,
and store new data in variables. Expressions are required to perform simple
computation or operate message selections, properties, and literal constants
to produce a new value for variables.
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Supported Elements
Supported Attributes
from (name="variable" type="NCName")
from (name="part" type="NCName")
to (name="variable" type="NCName")
to (name="part" type="NCName")
validate
from (name="expressionLanguage" type="anyURI" — xpath
only)
from (name="property" type="QName")
from (name="partnerLink" type="NCName")
from (name="endpointReference" type="bpws:tRoles")
from (name="opaque" type="bpws:tBoolean")
to (name="queryLanguage" type="anyURI")
to (name="property" type="QName")
to (name="partnerLink" type="NCName")
Extensions
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JavaScript
Acts like an Assign activity that enables you to use JavaScript (E4X),
rather than using XPath 1.0.
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Supported Elements
Supported Attributes
Extensions
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Validate
Validates the values of variables against their associated XML and WSDL
data definition. The element includes a Variables property that lists the
variables for the process, and allows you to specify which variables to validate.
When one or more variables prove invalid against a corresponding XML definition,
a standard fault, bpel:invalidVariables, is thrown.
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Supported Elements
Supported Attributes
Extensions
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Empty
Used as a placeholder within a process to catch and suppress faults
or to help synchronize actions within a flow activity that are executed concurrently.
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Supported Elements
Supported Attributes
Extensions
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Wait
Waits for a specified time or until a deadline is reached.
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Supported Elements
Supported Attributes
Extensions
More Information
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Throw
Used to signal a specific internal fault, and can provide a QName and
information for that fault.
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Supported Elements
Supported Attributes
Extensions
More Information
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ReThrow
Used to rethrow a fault.
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Supported Elements
Supported Attributes
Extensions
More Information
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Exit
Terminates the execution of a business process instance.
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Supported Elements
Supported Attributes
Extensions
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Compensate
Invokes the compensation handler of a particular scope.
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Supported Elements
Supported Attributes
Extensions
More Information
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CompensateScope
Invokes the compensation handler of a particular scope.
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Supported Elements
Supported Attributes
Extensions
More Information
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Structured Activities
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If
Supports conditional behavior of a business process instance. The If
activity consists of conditional branches defined by the If and Else If elements,
followed by an optional Else branch. The conditions on If and Else If branches
are evaluated in the order they appear. During execution, the first branch
whose condition holds true is taken and provides the activity specified for
the If activity. In other words, if there are several Else If branches whose
conditions hold true, only the first of them will be executed.
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Supported Elements
Supported Attributes
Extensions
More Information
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While
Repeatedly execute one or more activities as long as specific conditions
are in place at the beginning of each iteration.
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Supported Elements
Supported Attributes
Extensions
More Information
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RepeatUntil
Repeatedly executes one or more activities as long as specific conditions
are in place after the execution of each iteration. This element contains
other elements that are repeated until the success criteria you specify are
met. If the condition you specify leads to true, the activities listed will
be executed once.
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Supported Elements
Supported Attributes
Extensions
More Information
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ForEach
Repeatedly execute its contained scope activity exactly N+1 times where
N equals the Final Counter Value minus the Start Counter Value.
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Supported Elements
startCounterValue
finalCounterValue
completionCondition
Supported Attributes
Not Supported
Extensions
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Pick
Blocks a process and waits until a specified events occurs. After one
of the specific event occurs, the activity associated with this event is performed.
The possible events are the arrival of a message or a timer-based alarm. The
selected activity is dependent upon which event occurs first.
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Supported Elements
Supported Attributes
Extensions
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Flow
Defines a set of activities that will execute concurrently (in parallel).
This is a structured activity, containing other activities separated into
individual control paths or branches. You can embed as many paths in the activity
as you want, and they will all be executed simultaneously.
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Supported Elements
Not Supported
Supported Attributes
Extensions
More Information
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Sequence
Used to nest a series of activities in a process. Activities within
a sequence execute in strict sequential order, completing when the last activity
within the nest has finished.
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Supported Elements
Supported Attributes
Extensions
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Scope
Essentially, this activity is a collection of child activities that
can have their own Variables, Fault and Event Handlers, and correlation sets.
The Scope activity provides the behavior context for the child elements.
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Supported Elements
variables
faultHandlers
eventHandlers
Not Supported
partnerLinks
correlationSets
compensationHandler
terminationHandler
Supported Attributes
Not Supported
isolated
exitOnStandardFault
Extensions
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Other Activities
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OnMessage
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Supported Elements
Supported Attributes
Extensions
More Information
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OnMsgCommon
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Supported Elements
Supported Attributes
partnerLink
portType
operation
messageExchange
Extensions
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OnAlarmPick
Specifies an event that is triggered when a given duration variable
is exceeded.
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Supported Elements
Supported Attributes
Extensions
More Information
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CompletionCondition
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Supported Elements
Supported Attributes
Extensions
More Information
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Catch
Used to intercept a specifically defined type of fault.
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Supported Elements
faultName
faultVariable
faultMessageType
faultElement
Supported Attributes
Extensions
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OnEvent
Indicates that a specified event is triggered when a message arrives.
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Supported Elements
Supported Attributes
Extensions
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Activity
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Supported Elements
Not Supported
Supported Attributes
Not Supported
Extensions
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property
Defines a unique name and associates it with an XML Schema simple type.
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Supported Elements
Supported Attributes
Extensions
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propertyAlias
Defines a globally named property as an alias.
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Supported Elements
Supported Attributes
propertyName
messageType
part
Not Supported
Extensions
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PartnerLinkType
Expresses the dependences between services by defining each service's
role.
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Supported Elements
Supported Attributes
Extensions
More Information
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Role
Specifies one WSDL portType.
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Supported Elements
Supported Attributes
Extensions
More Information
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CorrelationWithPattern
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Supported Elements
Supported Attributes
Extensions
More Information
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