org.drools.runtime.process
Interface ProcessInstance

All Superinterfaces:

EventListener

All Known Subinterfaces:

ProcessInstance, WorkflowProcessInstance, WorkflowProcessInstance

All Known Implementing Classes:

ProcessInstanceImpl, RuleFlowProcessInstance, WorkflowProcessInstanceImpl

public interface ProcessInstance
extends EventListener

A process instance represents one specific instance of a process that is currently executing. Whenever a process is started, a process instance is created that represents that specific instance that was started. It contains all runtime information related to that instance. Multiple process instances of the same process can be executed simultaneously. For example, consider a process definition that describes how to process a purchase order. Whenever a new purchase order comes in, a new process instance will be created for that purchase order. Multiple process instances (one for each purchase order) can coexist. A process instance is uniquely identified by an id. This class can be extended to represent one specific type of process, e.g. WorkflowProcessInstance when using a WorkflowProcess where the process logic is expressed as a flow chart.

See Also:

WorkflowProcessInstance

Field Summary

static int	STATE_ABORTED
static int	STATE_ACTIVE
static int	STATE_COMPLETED
static int	STATE_PENDING
static int	STATE_SUSPENDED

Method Summary

long	getId() The unique id of this process instance.
Process	getProcess()
String	getProcessId() The id of the process definition that is related to this process instance.
String	getProcessName() The name of the process definition that is related to this process instance.
int	getState() The state of the process instance.

Methods inherited from interface org.drools.runtime.process.EventListener

getEventTypes, signalEvent

Field Detail

STATE_PENDING

static final int STATE_PENDING

See Also:

Constant Field Values

STATE_ACTIVE

static final int STATE_ACTIVE

See Also:

Constant Field Values

STATE_COMPLETED

static final int STATE_COMPLETED

See Also:

Constant Field Values

STATE_ABORTED

static final int STATE_ABORTED

See Also:

Constant Field Values

STATE_SUSPENDED

static final int STATE_SUSPENDED

See Also:

Constant Field Values

Method Detail

getProcessId

String getProcessId()

The id of the process definition that is related to this process instance.

Returns:

the id of the process definition that is related to this process instance

getProcess

Process getProcess()

getId

long getId()

The unique id of this process instance.

Returns:

the unique id of this process instance

getProcessName

String getProcessName()

The name of the process definition that is related to this process instance.

Returns:

the name of the process definition that is related to this process instance

getState

int getState()

The state of the process instance.

Returns:

the state of the process instance