| java.lang.Object
 com.hp.hpl.jena.reasoner.rulesys.impl.RETEClauseFilter
| RETEClauseFilter | | public class RETEClauseFilter implements RETESourceNode(Code) | | Checks a triple against the grounded matches and intra-triple matches
for a single rule clause. If the match passes it creates a binding
environment token and passes it on the the RETE network itself. The checks
and bindings are implemented using a simple byte-coded interpreter.
author:
Dave Reynolds
version:
$Revision: 1.14 $ on $Date: 2008/01/02 12:06:16 $ |
| Field Summary | |
| final public static byte | ADDRFunctorNode
Argument addressing code: triple object functor node, offset in
low nibble, only usable after a successful TestFunctorName. | | final public static byte | ADDRObject
| | final public static byte | ADDRPredicate
| | final public static byte | ADDRSubject
| | final public static byte | BIND
Instruction code: Bind a node (arg1) to a place in the rules token (arg2). | | final public static byte | CREATEToken
Instruction code: Create a result environment of length arg1. | | final public static byte | END
Instruction code: Final entry - dispatch to the network. | | final public static byte | TESTFunctorName
| | final public static byte | TESTIntraMatch
| | final public static byte | TESTValue
Instruction code: Check triple entry (arg1) against literal value (arg2). | | protected Object[] | args
| | protected RETESinkNode | continuation
| | protected byte[] | instructions
|
| ADDRFunctorNode | | final public static byte ADDRFunctorNode(Code) | | Argument addressing code: triple object functor node, offset in
low nibble, only usable after a successful TestFunctorName.
|
| ADDRObject | | final public static byte ADDRObject(Code) | | Argument addressing code: triple object as a whole
|
| ADDRPredicate | | final public static byte ADDRPredicate(Code) | | Argument addressing code: triple predicate
|
| ADDRSubject | | final public static byte ADDRSubject(Code) | | Argument addressing code: triple subject
|
| BIND | | final public static byte BIND(Code) | | Instruction code: Bind a node (arg1) to a place in the rules token (arg2).
|
| CREATEToken | | final public static byte CREATEToken(Code) | | Instruction code: Create a result environment of length arg1.
|
| END | | final public static byte END(Code) | | Instruction code: Final entry - dispatch to the network.
|
| TESTFunctorName | | final public static byte TESTFunctorName(Code) | | Instruction code: Check literal value is a functor of name arg1
|
| TESTIntraMatch | | final public static byte TESTIntraMatch(Code) | | Instruction code: Cross match two triple entries (arg1, arg2)
|
| TESTValue | | final public static byte TESTValue(Code) | | Instruction code: Check triple entry (arg1) against literal value (arg2).
|
| args | | protected Object[] args(Code) | | Contains the object arguments referenced from the instructions array
|
| continuation | | protected RETESinkNode continuation(Code) | | The network node to receive any created tokens
|
| instructions | | protected byte[] instructions(Code) | | Contains the set of byte-coded instructions and argument pointers
|
| RETEClauseFilter | | public RETEClauseFilter(byte[] instructions, Object[] args)(Code) | | Contructor.
Parameters:
instructions - the set of byte-coded instructions and argument pointers.
Parameters:
args - the object arguments referenced from the instructions array. |
| clone | | public RETENode clone(Map netCopy, RETERuleContext context)(Code) | | Clone this node in the network.
Parameters:
netCopy - a map from RETENode to cloned instance
Parameters:
context - the new context to which the network is being ported |
| compile | | public static RETEClauseFilter compile(TriplePattern clause, int envLength, List varList)(Code) | | Create a filter node from a rule clause.
Clause complexity is limited to less than 50 args in a Functor.
Parameters:
clause - the rule clause
Parameters:
envLength - the size of binding environment that should be created on successful matches
Parameters:
varList - a list to which all clause variables will be appended |
| fire | | public void fire(Triple triple, boolean isAdd)(Code) | | Insert or remove a triple into the network.
Parameters:
triple - the triple to process.
Parameters:
isAdd - true if the triple is being added to the working set. |
| setContinuation | | public void setContinuation(RETESinkNode continuation)(Code) | | Set the continuation node for this node.
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