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Interface through which the current bound values of variables can be found. Many of the details vary between the forward and backward chaining system - this interface is the minimal one needed by most builtins the specific implementations offer richer functionality.
Method Summary | |
boolean |
bind(Node var,
Node value)
Bind a variable in the current envionment 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. |
Method Detail |
public Node getGroundVersion(Node node)
public boolean bind(Node var, Node value)
var
- a Node_RuleVariable defining the variable to bindvalue
- the value to bind
public Triple instantiate(TriplePattern pattern)
pattern
- the triple pattern to match
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