RETETerminal (Apache Jena)

java.lang.Object
- org.apache.jena.reasoner.rulesys.impl.RETETerminal

All Implemented Interfaces:

RETENode, RETESinkNode
```
public class RETETerminal
extends java.lang.Object
implements RETESinkNode
```
The final node in a RETE graph. It runs the builtin guard clauses and then, if the token passes, executes the head operations.

Constructor Summary

Constructors
Constructor Description

RETETerminal(Rule rule, RETEEngine engine, ForwardRuleInfGraphI graph)
Constructor.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`RETENode`	`clone(java.util.Map<RETENode,RETENode> netCopy, RETERuleContext contextIn)`	Clone this node in the network.
`void`	`fire(BindingVector env, boolean isAdd)`	Propagate a token to this node.
`void`	`setContext(RETEEngine engine, ForwardRuleInfGraphI graph)`	Change the engine/graph to which this terminal should deliver its results.

Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - RETETerminal
```
public RETETerminal(Rule rule,
                    RETEEngine engine,
                    ForwardRuleInfGraphI graph)
```
    Constructor.
    
    Parameters:
    
    rule - the rule which this terminal should fire.
    
    engine - the parent rule engine through which the deductions and recursive network can be reached.
    
    graph - the wider encompassing infGraph needed to for the RuleContext
- Method Detail
  - setContext
```
public void setContext(RETEEngine engine,
                       ForwardRuleInfGraphI graph)
```
    Change the engine/graph to which this terminal should deliver its results.
  - fire
```
public void fire(BindingVector env,
                 boolean isAdd)
```
    Propagate a token to this node.
    
    Specified by:
    
    fire in interface RETESinkNode
    
    Parameters:
    
    env - a set of variable bindings for the rule being processed.
    
    isAdd - distinguishes between add and remove operations.
  - clone
```
public RETENode clone(java.util.Map<RETENode,RETENode> netCopy,
                      RETERuleContext contextIn)
```
    Clone this node in the network.
    
    Specified by:
    
    clone in interface RETENode
    
    Parameters:
    
    netCopy - a map from RETENode to cloned instance
    
    contextIn - the new context to which the network is being ported