Examples of org.neo4j.graphdb.traversal.TraversalDescription.prune()

org.neo4j.graphdb.traversal.TraversalDescription.prune()

Adds {@code pruning} to the list of {@link PruneEvaluator}s which are used to prune the traversal. The semantics for many prune evaluators is that if any one of the added prune evaluators returns {@code true}it's considered OK to prune there. @param pruning the {@link PruneEvaluator} to add to the list of pruneevaluators to use. @return a new traversal description with the new modifications. @deprecated because of the introduction of {@link Evaluator}. Use {@link #evaluator(Evaluator)} instead which combines{@link #filter(Predicate)} and {@link #prune(PruneEvaluator)}. The supplied {@link PruneEvaluator} will be wrapped by an {@link Evaluator} internally.

                        return new LiteDepthFirstSelector( startSource,
                                startThreshold );
                    }
                } );
        final int firstHalf = onDepth / 2;
        Traverser startTraverser = base.prune(
                Traversal.pruneAfterDepth( firstHalf ) ).expand(
                expander ).filter( new Predicate<Path>()
        {
            public boolean accept( Path item )
            {

            {
                return item.length() == firstHalf;
            }
        } ).traverse( start );
        final int secondHalf = onDepth - firstHalf;
        Traverser endTraverser = base.prune(
                Traversal.pruneAfterDepth( secondHalf ) ).expand(
                expander.reversed() ).filter( new Predicate<Path>()
        {
            public boolean accept( Path item )
            {

        default:
            throw new IllegalArgumentException( "Onsupported traversal order: "
                                                + order );
        }


        description = description.prune( new Pruner( traverser, stopEvaluator ) );
        description = description.filter( new Filter( traverser,
                returnableEvaluator ) );


        return description;
    }

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