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## org.drools.runtime.process
Interface NodeInstance

All Known Subinterfaces:
  NodeInstance

All Known Implementing Classes:
  ActionNodeInstance, CatchLinkNodeInstance, CompositeContextNodeInstance, CompositeNodeInstance, CompositeNodeInstance.CompositeNodeEndInstance, CompositeNodeInstance.CompositeNodeStartInstance, DynamicNodeInstance, EndNodeInstance, EventNodeInstance, ExtendedNodeInstanceImpl, FaultNodeInstance, ForEachNodeInstance, ForEachNodeInstance.ForEachJoinNodeInstance, ForEachNodeInstance.ForEachSplitNodeInstance, HumanTaskNodeInstance, JoinInstance, MilestoneNodeInstance, NodeInstanceImpl, RuleSetNodeInstance, SplitInstance, StartNodeInstance, StateBasedNodeInstance, StateNodeInstance, SubProcessNodeInstance, ThrowLinkNodeInstance, TimerNodeInstance, WorkItemNodeInstance

    public interface NodeInstance

A node instance represents the execution of one specific node in a process instance. Whenever a node is reached during the execution of a process instance, a node instance will be created. A node instance contains all the runtime state related to the execution of that node. Multiple node instances for the same node can coexist in the same process instance (if that node is to be executed multiple times in that process instance). A node instance is uniquely identified (within its node instance container!) by an id. Node instances can be nested, meaning that a node instance can be created as part of another node instance.

Method Summary
`long` | `getId()` The id of the node instance.
`Node` | `getNode()` Return the node this node instance refers to.
`long` | `getNodeId()` The id of the node this node instance refers to.
`NodeInstanceContainer` | `getNodeInstanceContainer()` The node instance container that this node instance is part of.
`String` | `getNodeName()` The name of the node this node instance refers to.
`WorkflowProcessInstance` | `getProcessInstance()` The process instance that this node instance is executing in.
`Object` | `getVariable(String variableName)`
`void` | `setVariable(String variableName, Object value)`

Method Detail

### getId

    long getId()

  The id of the node instance. This is unique within the node instance container this node instance lives in.

  Returns:
    the id of the node instance

### getNodeId

    long getNodeId()

  The id of the node this node instance refers to. The node represents the definition that this node instance was based on.

  Returns:
    the id of the node this node instance refers to

### getNode

    Node getNode()

  Return the node this node instance refers to. The node represents the definition that this node instance was based on.

  Returns:
    the node this node instance refers to

### getNodeName

    String getNodeName()

  The name of the node this node instance refers to.

  Returns:
    the name of the node this node instance refers to

### getProcessInstance

    WorkflowProcessInstance getProcessInstance()

  The process instance that this node instance is executing in.

  Returns:
    the process instance that this node instance is executing in

### getNodeInstanceContainer

    NodeInstanceContainer getNodeInstanceContainer()

  The node instance container that this node instance is part of. If the node was defined in the top-level process scope, this is the same as the process instance. If not, it is the node instance container this node instance is executing in.

  Returns:
    the process instance that this node instance is executing in

### getVariable

    Object getVariable(String variableName)

### setVariable

    void setVariable(String variableName,
                     Object value)

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