it.unibz.inf.ontop.iq.proposal.impl

Class NodeCentricOptimizationResultsImpl<N extends QueryNode>

java.lang.Object

it.unibz.inf.ontop.iq.proposal.impl.ProposalResultsImpl

it.unibz.inf.ontop.iq.proposal.impl.NodeCentricOptimizationResultsImpl<N>

All Implemented Interfaces:

NodeCentricOptimizationResults<N>, ProposalResults

public class NodeCentricOptimizationResultsImpl<N extends QueryNode>
extends ProposalResultsImpl
implements NodeCentricOptimizationResults<N>

Constructor Summary

Constructors

Constructor and Description
NodeCentricOptimizationResultsImpl(IntermediateQuery query, N newNode)
NodeCentricOptimizationResultsImpl(IntermediateQuery query, Optional<QueryNode> optionalReplacingChild) The replacing child IS NOT OPTIONAL (Optional is here just to avoid confusion with other constructors).
NodeCentricOptimizationResultsImpl(IntermediateQuery query, Optional<QueryNode> optionalNextSibling, Optional<QueryNode> optionalClosestAncestor) When the focus node has been removed and not declared as being replaced by its first child.

Method Summary

Modifier and Type	Method and Description
Optional<QueryNode>	getNewNodeOrReplacingChild()
Optional<QueryNode>	getOptionalClosestAncestor() Is usually the parent but may be another ancestor in case of delete cascading.
Optional<N>	getOptionalNewNode() TODO: explain
Optional<QueryNode>	getOptionalNextSibling() Is or was (if the node has been deleted) a sibling.
Optional<QueryNode>	getOptionalReplacingChild() When the focus node is officially replaced by one of its children

Methods inherited from class java.lang.Object

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

Constructor Detail

NodeCentricOptimizationResultsImpl

public NodeCentricOptimizationResultsImpl(IntermediateQuery query,
                                          N newNode)

NodeCentricOptimizationResultsImpl

public NodeCentricOptimizationResultsImpl(IntermediateQuery query,
                                          Optional<QueryNode> optionalNextSibling,
                                          Optional<QueryNode> optionalClosestAncestor)

When the focus node has been removed and not declared as being replaced by its first child.

NodeCentricOptimizationResultsImpl

public NodeCentricOptimizationResultsImpl(IntermediateQuery query,
                                          Optional<QueryNode> optionalReplacingChild)

The replacing child IS NOT OPTIONAL (Optional is here just to avoid confusion with other constructors). TODO: should we refactor it?

Method Detail

getOptionalNewNode

public Optional<N> getOptionalNewNode()

Description copied from interface: NodeCentricOptimizationResults

TODO: explain

Specified by:

getOptionalNewNode in interface NodeCentricOptimizationResults<N extends QueryNode>

getOptionalNextSibling

public Optional<QueryNode> getOptionalNextSibling()

Is or was (if the node has been deleted) a sibling. Note that in case of cascade deletion, the sibling may appear higher in the tree.

Specified by:

getOptionalNextSibling in interface NodeCentricOptimizationResults<N extends QueryNode>

getOptionalClosestAncestor

public Optional<QueryNode> getOptionalClosestAncestor()

Is usually the parent but may be another ancestor in case of delete cascading.

Specified by:

getOptionalClosestAncestor in interface NodeCentricOptimizationResults<N extends QueryNode>

getOptionalReplacingChild

public Optional<QueryNode> getOptionalReplacingChild()

Description copied from interface: NodeCentricOptimizationResults

When the focus node is officially replaced by one of its children

Specified by:

getOptionalReplacingChild in interface NodeCentricOptimizationResults<N extends QueryNode>

getNewNodeOrReplacingChild

public Optional<QueryNode> getNewNodeOrReplacingChild()

Specified by:

getNewNodeOrReplacingChild in interface NodeCentricOptimizationResults<N extends QueryNode>