org.objectweb.medor.eval.lib
Class TupleCollectionNodeEvaluator
java.lang.Object
org.objectweb.medor.eval.lib.TupleCollectionNodeEvaluator
- NodeEvaluator
public class TupleCollectionNodeEvaluator
extends java.lang.Object
Just a simple class that encapsulates a TupleCollection.
TupleCollectionNodeEvaluator
public TupleCollectionNodeEvaluator(TupleCollection tc)
fetchData
public TupleCollection fetchData(ParameterOperand[] parameters)
This method executes the query on the underlying node.
It controls the evaluation locally for this node.
It returns the TupleCollection containing the result of the execution.
- fetchData in interface NodeEvaluator
linkChildren
public boolean linkChildren()
Opens the links between the current NodeEvaluator and the NodeEvaluators
of the children QueryTrees for pipelining operations.
TODO complete comments
- linkChildren in interface NodeEvaluator
unlinkChildren
public boolean unlinkChildren()
Closes the links between the current NodeEvaluator and the NodeEvaluators
of the children QueryTrees for pipelining operations.
TODO complete comments
- unlinkChildren in interface NodeEvaluator