Examples with IndexHits org.neo4j.graphdb.index.IndexHits used on opensource projects

Example 6 with IndexHits

use of org.neo4j.graphdb.index.IndexHits in project graphdb by neo4j-attic.

the class TestPerformanceAndSanity method makeSureFilesAreClosedProperly.

@Test
public void makeSureFilesAreClosedProperly() throws Exception {
    commitTx();
    final Index<Node> index = nodeIndex("open-files", LuceneIndexImplementation.EXACT_CONFIG);
    final long time = System.currentTimeMillis();
    final CountDownLatch latch = new CountDownLatch(30);
    for (int t = 0; t < latch.getCount(); t++) {
        new Thread() {

            public void run() {
                for (int i = 0; System.currentTimeMillis() - time < 100 * 1000; i++) {
                    if (i % 10 == 0) {
                        if (i % 100 == 0) {
                            int size = 0;
                            int type = (int) (System.currentTimeMillis() % 3);
                            if (type == 0) {
                                IndexHits<Node> itr = index.get("key", "value5");
                                try {
                                    itr.getSingle();
                                } catch (NoSuchElementException e) {
                                }
                                size = 99;
                            } else if (type == 1) {
                                IndexHits<Node> itr = index.get("key", "value5");
                                for (; itr.hasNext() && size < 5; size++) {
                                    itr.next();
                                }
                                itr.close();
                            } else {
                                IndexHits<Node> itr = index.get("key", "crap value");
                                // Iterate over the hits sometimes (it's always gonna be 0 sized)
                                if (System.currentTimeMillis() % 10 > 5) {
                                    IteratorUtil.count((Iterator<Node>) itr);
                                }
                            }
                            System.out.println("C iterated " + size + " only");
                        } else {
                            int size = IteratorUtil.count((Iterator<Node>) index.get("key", "value5"));
                            System.out.println("hit size:" + size);
                        }
                    } else {
                        Transaction tx = graphDb.beginTx();
                        try {
                            for (int ii = 0; ii < 20; ii++) {
                                Node node = graphDb.createNode();
                                index.add(node, "key", "value" + ii);
                            }
                            tx.success();
                        } finally {
                            tx.finish();
                        }
                    }
                }
                latch.countDown();
            }
        }.start();
    }
    latch.await();
}

Example 7 with IndexHits

use of org.neo4j.graphdb.index.IndexHits in project neo4j-mobile-android by neo4j-contrib.

the class LuceneIndex method search.

private IndexHits<Document> search(IndexSearcherRef searcherRef, Query query, QueryContext additionalParametersOrNull, IndexSearcher additionsSearcher, Collection<Long> removed) {
    try {
        if (additionsSearcher != null && !removed.isEmpty()) {
            letThroughAdditions(additionsSearcher, query, removed);
        }
        IndexSearcher searcher = additionsSearcher == null ? searcherRef.getSearcher() : new IndexSearcher(new MultiReader(searcherRef.getSearcher().getIndexReader(), additionsSearcher.getIndexReader()));
        IndexHits<Document> result = null;
        if (additionalParametersOrNull != null && additionalParametersOrNull.getTop() > 0) {
            result = new TopDocsIterator(query, additionalParametersOrNull, searcher);
        } else {
            Sort sorting = additionalParametersOrNull != null ? additionalParametersOrNull.getSorting() : null;
            boolean forceScore = additionalParametersOrNull == null || !additionalParametersOrNull.getTradeCorrectnessForSpeed();
            Hits hits = new Hits(searcher, query, null, sorting, forceScore);
            result = new HitsIterator(hits);
        }
        return result;
    } catch (IOException e) {
        throw new RuntimeException("Unable to query " + this + " with " + query, e);
    }
}

Example 8 with IndexHits

use of org.neo4j.graphdb.index.IndexHits in project blueprints by tinkerpop.

the class Neo4jIndex method count.

/**
     * {@inheritDoc}
     * <p/>
     * The underlying Neo4j graph does not natively support this method within a transaction.
     * If the graph is not currently in a transaction, then the operation runs efficiently.
     * If the graph is in a transaction, then, for every element, a try/catch is used to determine if its in the current transaction.
     */
public long count(final String key, final Object value) {
    if (!this.graph.checkElementsInTransaction()) {
        final IndexHits hits = this.rawIndex.get(key, value);
        final long count = hits.size();
        hits.close();
        return count;
    } else {
        final CloseableIterable<T> hits = this.get(key, value);
        long count = 0;
        for (final T t : hits) {
            count++;
        }
        hits.close();
        return count;
    }
}