com.couchbase.lite.Query Java Examples

The following examples show how to use com.couchbase.lite.Query. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example #1
Source File: SyncManager.java    From mini-hacks with MIT License 6 votes vote down vote up 
private void queryCities() {
    final Query query = database.getView(CITIES_VIEW).createQuery();
    query.setGroupLevel(1);

    LiveQuery liveQuery = query.toLiveQuery();
    liveQuery.addChangeListener(new LiveQuery.ChangeListener() {
        @Override
        public void changed(LiveQuery.ChangeEvent event) {
            try {
                QueryEnumerator enumeration = query.run();
                for (QueryRow row : enumeration) {
                    Log.d("CityExplorer", "Row is " + row.getValue() + " and key " + row.getKey());
                }

            } catch (CouchbaseLiteException e) {
                e.printStackTrace();
            }
        }
    });

    liveQuery.start();
}
Example #2
Source File: QueryPerfTest.java    From couchbase-lite-android with Apache License 2.0 6 votes vote down vote up 
int query() {
    int count = 0;
    bench.start();
    Query q = QueryBuilder.select(SelectResult.expression(Meta.id))
            .from(DataSource.database(db));
    ResultSet rs = null;
    try {
        rs = q.execute();
    } catch (CouchbaseLiteException e) {
        e.printStackTrace();
    }
    for (Result r : rs) {
        count++;
    }
    double t = bench.stop();
    System.err.print(String.format("Query %d documents in %.06f sec\n", count, t));
    return count;
}
Example #3
Source File: PerfTestCouchbase.java    From android-database-performance with Apache License 2.0 5 votes vote down vote up 
private void deleteAll() throws CouchbaseLiteException {
    // query all documents, mark them as deleted
    Query query = database.createAllDocumentsQuery();
    QueryEnumerator result = query.run();
    database.beginTransaction();
    while (result.hasNext()) {
        QueryRow row = result.next();
        row.getDocument().purge();
    }
    database.endTransaction(true);
}
Example #4
Source File: TunesPerfTest.java    From couchbase-lite-android with Apache License 2.0 5 votes vote down vote up 
List<String> collectQueryResults(Query query) throws CouchbaseLiteException {
    List<String> results = new ArrayList<>();
    ResultSet rs = query.execute();
    for(Result r : rs){
        results.add(r.getString(0));
    }
    return results;
}
Example #5
Source File: PerfTestCouchbase.java    From android-database-performance with Apache License 2.0 4 votes vote down vote up 
private void indexedStringEntityQueriesRun(View indexedStringView, int count)
        throws CouchbaseLiteException {
    // create entities
    String[] fixedRandomStrings = StringGenerator.createFixedRandomStrings(count);
    database.beginTransaction();
    for (int i = 0; i < count; i++) {
        Document entity = database.getDocument(String.valueOf(i));
        Map<String, Object> properties = new HashMap<>();
        properties.put("indexedString", fixedRandomStrings[i]);
        entity.putProperties(properties);
    }
    database.endTransaction(true);
    log("Built and inserted entities.");

    // query for entities by indexed string at random
    int[] randomIndices = StringGenerator.getFixedRandomIndices(getQueryCount(), count - 1);

    // clear the document cache to force loading properties from the database
    database.clearDocumentCache();

    startClock();
    for (int i = 0; i < getQueryCount(); i++) {
        int nextIndex = randomIndices[i];
        List<Object> keyToQuery = new ArrayList<>(1);
        keyToQuery.add(fixedRandomStrings[nextIndex]);

        Query query = indexedStringView.createQuery();
        query.setKeys(keyToQuery);
        QueryEnumerator result = query.run();
        while (result.hasNext()) {
            QueryRow row = result.next();
            //noinspection unused
            Document document = row.getDocument();
        }
    }
    stopClock(Benchmark.Type.QUERY_INDEXED);

    // delete all entities
    deleteAll();
    log("Deleted all entities.");
}