it.unibz.inf.ontop.iq.executor.join

Class JoinBooleanExpressionExecutor

java.lang.Object

it.unibz.inf.ontop.iq.executor.join.JoinBooleanExpressionExecutor

All Implemented Interfaces:

InnerJoinExecutor, NodeCentricExecutor<InnerJoinNode,NodeCentricOptimizationResults<InnerJoinNode>,InnerJoinOptimizationProposal>, ProposalExecutor<InnerJoinOptimizationProposal,NodeCentricOptimizationResults<InnerJoinNode>>, SimpleNodeCentricExecutor<InnerJoinNode,InnerJoinOptimizationProposal>

public class JoinBooleanExpressionExecutor
extends Object
implements InnerJoinExecutor

TODO: replace it by IQ.normalizeForOptimization()

Method Summary

Modifier and Type	Method and Description
NodeCentricOptimizationResults<InnerJoinNode>	apply(InnerJoinOptimizationProposal proposal, IntermediateQuery query, QueryTreeComponent treeComponent) Standard method (InternalProposalExecutor) Undesired effect: if the join node is at the root, insert a ConstructionNode (due to the design of TreeComponent.replaceNodesByOneNode())

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

apply

public NodeCentricOptimizationResults<InnerJoinNode> apply(InnerJoinOptimizationProposal proposal,
                                                           IntermediateQuery query,
                                                           QueryTreeComponent treeComponent)
                                                    throws InvalidQueryOptimizationProposalException

Standard method (InternalProposalExecutor) Undesired effect: if the join node is at the root, insert a ConstructionNode (due to the design of TreeComponent.replaceNodesByOneNode())

Specified by:

apply in interface ProposalExecutor<InnerJoinOptimizationProposal,NodeCentricOptimizationResults<InnerJoinNode>>

Throws:

InvalidQueryOptimizationProposalException