it.unibz.inf.ontop.iq.optimizer.impl

Class QueryNodeNavigationTools

java.lang.Object

it.unibz.inf.ontop.iq.optimizer.impl.QueryNodeNavigationTools

public class QueryNodeNavigationTools
extends Object

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	QueryNodeNavigationTools.NextNodeAndQuery Next node and updated query

Constructor Summary

Constructors

Constructor and Description
QueryNodeNavigationTools()

Method Summary

Modifier and Type	Method and Description
static Optional<QueryNode>	getDepthFirstNextNode(IntermediateQuery query, QueryNode currentNode) Depth-first exploration
static QueryNodeNavigationTools.NextNodeAndQuery	getNextNodeAndQuery(IntermediateQuery query, NodeCentricOptimizationResults<? extends QueryNode> results) Finds the next node to visit in a new intermediate query
static Optional<QueryNode>	skipSubTreeAndContinueDepthFirst(IntermediateQuery query, QueryNode currentNode)

Methods inherited from class java.lang.Object

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

Constructor Detail

QueryNodeNavigationTools

public QueryNodeNavigationTools()

Method Detail

getDepthFirstNextNode

public static Optional<QueryNode> getDepthFirstNextNode(IntermediateQuery query,
                                                        QueryNode currentNode)

Depth-first exploration

getNextNodeAndQuery

public static QueryNodeNavigationTools.NextNodeAndQuery getNextNodeAndQuery(IntermediateQuery query,
                                                                            NodeCentricOptimizationResults<? extends QueryNode> results)

Finds the next node to visit in a new intermediate query

skipSubTreeAndContinueDepthFirst

public static Optional<QueryNode> skipSubTreeAndContinueDepthFirst(IntermediateQuery query,
                                                                   QueryNode currentNode)