LPBindingEnvironment (Apache Jena)

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

All Implemented Interfaces:

BindingEnvironment
```
public class LPBindingEnvironment
extends java.lang.Object
implements BindingEnvironment
```
Implementation of the binding environment interface for use in LP backward rules.

Constructor Summary

Constructors
Constructor Description

LPBindingEnvironment(LPInterpreter interpeter)
Constructor.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`boolean`	`bind(Node var, Node value)`	Bind a variable in the current environment to the given value.
`Node`	`getGroundVersion(Node node)`	Return the most ground version of the node.
`Triple`	`instantiate(TriplePattern pattern)`	Instantiate a triple pattern against the current environment.

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

- Constructor Detail
  - LPBindingEnvironment
```
public LPBindingEnvironment(LPInterpreter interpeter)
```
    Constructor.
- Method Detail
  - getGroundVersion
```
public Node getGroundVersion(Node node)
```
    Return the most ground version of the node. If the node is not a variable just return it, if it is a variable bound in this environment return the binding, if it is an unbound variable return the variable.
    
    Specified by:
    
    getGroundVersion in interface BindingEnvironment
  - bind
```
public boolean bind(Node var,
                    Node value)
```
    Bind a variable in the current environment to the given value. Checks that the new binding is compatible with any current binding.
    
    Specified by:
    
    bind in interface BindingEnvironment
    
    Parameters:
    
    var - a Node_RuleVariable defining the variable to bind
    
    value - the value to bind
    
    Returns:
    
    false if the binding fails
  - instantiate
```
public Triple instantiate(TriplePattern pattern)
```
    Instantiate a triple pattern against the current environment. This version handles unbound variables by turning them into bNodes.
    
    Specified by:
    
    instantiate in interface BindingEnvironment
    
    Parameters:
    
    pattern - the triple pattern to match
    
    Returns:
    
    a new, instantiated triple