org.drools.runtime.process
Interface ProcessContext

All Superinterfaces:

KnowledgeContext

public interface ProcessContext
extends KnowledgeContext

Represents the context when executing a process.

Method Summary

NodeInstance	getNodeInstance() Returns the node instance that is currently being executed in this context, or null if no node instance is currently being executed.
ProcessInstance	getProcessInstance() Returns the process instance that is currently being executed in this context.
Object	getVariable(String variableName) Returns the value of the variable with the given name.
void	setVariable(String variableName, Object value) Sets the value of the variable with the given name.

Methods inherited from interface org.drools.runtime.KnowledgeContext

getKnowledgeRuntime

Method Detail

getProcessInstance

ProcessInstance getProcessInstance()

Returns the process instance that is currently being executed in this context.

Returns:

the process instance that is currently being executed in this context

getNodeInstance

NodeInstance getNodeInstance()

Returns the node instance that is currently being executed in this context, or null if no node instance is currently being executed.

Returns:

the node instance that is currently being executed in this context

getVariable

Object getVariable(String variableName)

Returns the value of the variable with the given name. Based on the current node instance, it will try to resolve the given variable, taking nested variable scopes into account. Returns null if the variable could not be found.

Parameters:

variableName - the name of the variable

Returns:

the value of the variable

setVariable

void setVariable(String variableName,
                 Object value)

Sets the value of the variable with the given name. Based on the current node instance, it will try to resolve the given variable, taking nested variable scopes into account. If the variable cannot be resolved, it will set the value as a process-level variable. It is however recommended to only use this with caution, as it is always recommended to define the variables that are used inside a process.

Parameters:

variableName - the name of the variable

value - the value of the variable