org.eclipse.incquery.runtime.rete.single

Class ValueBinderFilterNode

java.lang.Object

org.eclipse.incquery.runtime.rete.network.BaseNode

org.eclipse.incquery.runtime.rete.network.StandardNode

org.eclipse.incquery.runtime.rete.single.SingleInputNode

org.eclipse.incquery.runtime.rete.single.FilterNode

org.eclipse.incquery.runtime.rete.single.ValueBinderFilterNode

All Implemented Interfaces:

Node, Receiver, Supplier, Tunnel

public class ValueBinderFilterNode
extends FilterNode

A filter node that keeps only those tuples that contain a certain value at a certain position.

Author:

Bergmann G�bor

Constructor Summary

Constructors

Constructor and Description
ValueBinderFilterNode(ReteContainer reteContainer, int bindingIndex, java.lang.Object bindingValue)

Method Summary

Modifier and Type	Method and Description
boolean	check(Tuple ps) Abstract filtering predicate.

Methods inherited from class org.eclipse.incquery.runtime.rete.single.FilterNode

pullInto, update

Methods inherited from class org.eclipse.incquery.runtime.rete.single.SingleInputNode

appendParent, assignTraceInfo, getParents, propagatePullInto, removeParent

Methods inherited from class org.eclipse.incquery.runtime.rete.network.StandardNode

appendChild, constructIndex, getPulledContents, getReceivers, removeChild

Methods inherited from class org.eclipse.incquery.runtime.rete.network.BaseNode

acceptPropagatedTraceInfo, getContainer, getNodeId, getTag, getTraceInfos, setTag, toString

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.eclipse.incquery.runtime.rete.network.Supplier

appendChild, constructIndex, getPulledContents, getReceivers, removeChild

Methods inherited from interface org.eclipse.incquery.runtime.rete.network.Node

acceptPropagatedTraceInfo, getContainer, getNodeId, getTag, getTraceInfos, setTag

Constructor Detail

ValueBinderFilterNode

public ValueBinderFilterNode(ReteContainer reteContainer,
                             int bindingIndex,
                             java.lang.Object bindingValue)

Parameters:

reteContainer -

bindingIndex - the position in the tuple that should be bound

bindingValue - the value to which the tuple has to be bound

Method Detail

check

public boolean check(Tuple ps)

Description copied from class: FilterNode

Abstract filtering predicate. Expected to be stateless.

Specified by:

check in class FilterNode

Parameters:

ps - the matching to be checked.

Returns:

true if and only if the parameter matching is allowed to pass through this node.