Example usage for java.util Collections EMPTY

Introduction

In this page you can find the example usage for java.util Collections EMPTY_SET.

Prototype

Set EMPTY_SET

To view the source code for java.util Collections EMPTY_SET.

Click Source Link

Document

The empty set (immutable).

Usage

From source file:org.mskcc.cbio.importer.dao.internal.ImportDataRecordHibernateDAO.java

/**
 * Functon to retrieve ImportDataRecord via tumor type, data type, and center.
*
* @param tumorType String/*from   w  w w .java 2  s .c o m*/
* @param dataType String
* @param center String
* @param runDate String
* @return ImportDataRecord
 */
@Override
@Transactional(propagation = Propagation.REQUIRED)
public Collection<ImportDataRecord> getImportDataRecordByTumorTypeAndDatatypeAndCenterAndRunDate(
        String tumorType, String datatype, String center, String runDate) {
    Session session = getSession();
    Query query = session.getNamedQuery(
            "org.mskcc.cbio.import.model.importDataRecordByTumorTypeAndDatatypeAndCenterAndRunDate");
    query.setParameter("tumortype", tumorType);
    query.setParameter("datatype", datatype);
    query.setParameter("center", center);
    query.setParameter("rundate", runDate);
    List<ImportDataRecord> toReturn = query.list();
    return (toReturn.size() > 0) ? new ArrayList<ImportDataRecord>(toReturn) : Collections.EMPTY_SET;
}

From source file:org.vosao.search.impl.SearchIndexImpl.java

private Set<Long> getPageIds(String query) {
    String[] words = StrUtil.splitByWord(query);
    if (words.length == 0) {
        return Collections.EMPTY_SET;
    }/*from  w  ww  . j a va2  s.  co m*/
    Set<Long> keys = getPageKeys(words[0]);
    int i = 0;
    for (String word : words) {
        if (i++ > 0) {
            keys = keysLogicalAnd(keys, getPageKeys(word));
        }
    }
    //logger.info("found keys " + keys.toString());
    return keys;
}

From source file:org.jactr.modules.pm.aural.audicon.map.LocationFeatureMap.java

protected Collection<IIdentifier> equal(IChunk when) {
    Set<IIdentifier> identifiers = _locationMap.get(when);
    if (identifiers == null)
        identifiers = Collections.EMPTY_SET;
    return identifiers;
}

From source file:org.stockwatcher.web.WatchListController.java

@RequestMapping(value = "/addtowatchlist", method = RequestMethod.POST)
public String addToWatchList(Model model, HttpServletRequest request) {
    String id = getRequestParameter(request, "watchListId");
    String stockSymbol = getRequestParameter(request, "stockSymbol");
    User user = (User) request.getSession().getAttribute("user");
    UUID watchListId = null;//  w  w w.  j  a  v  a2 s .  c  om
    WatchList watchList = null;
    if (CREATE_NEW.equals(id)) {
        String displayName = getRequestParameter(request, "displayName");
        watchList = new WatchList();
        watchList.setDisplayName(displayName);
        watchList.setUserId(user.getId());
        watchListDAO.insertWatchList(watchList);
        watchListId = watchList.getId();
        LOGGER.info("Created watchList {}", watchListId);
    } else {
        watchListId = UUID.fromString(id);
        watchList = watchListDAO.getWatchList(watchListId);
    }
    // Make sure the user owns the watch list
    if (watchList.getUserId().equals(user.getId())) {
        watchListDAO.addWatchListStock(watchListId, stockSymbol);
        LOGGER.info("Added symbol {} to watchList {}", stockSymbol, watchListId);
    } else {
        LOGGER.warn("Unable to add symbol {} to watchList {}", stockSymbol, watchListId);
    }
    model.addAttribute("watchLists",
            user == null ? Collections.EMPTY_SET : watchListDAO.getWatchListsByUserId(user.getId()));
    return "watchListOptions";
}

From source file:org.apache.hadoop.yarn.server.resourcemanager.monitor.capacity.ProportionalCapacityPreemptionPolicy.java

@SuppressWarnings("unchecked")
public ProportionalCapacityPreemptionPolicy() {
    clock = new SystemClock();
    allPartitions = Collections.EMPTY_SET;
    leafQueueNames = Collections.EMPTY_SET;
    preemptableQueues = Collections.EMPTY_MAP;
}

From source file:com.github.p4535992.database.datasource.database.data.Dao.java

@SuppressWarnings("unchecked")
public void delete(Map<String, Object> rowData) {
    final Set<Entry<String, Object>> keys = extractPrimaryKeyValues(rowData);
    final String delete = createDeleteScript(keys);

    execute(Collections.EMPTY_SET, keys, delete);
}

From source file:hr.fer.spocc.grammar.Grammar.java

@SuppressWarnings("unchecked")
protected Set<ProductionRule<T>> getProductionsRightSymbol(Symbol<T> symbol) {
    if (!this.rightSideSymbolMap.containsKey(symbol))
        return Collections.EMPTY_SET;
    return this.rightSideSymbolMap.getAll(symbol);
}

From source file:org.capelin.mvc.utils.LuceneBuilder.java

protected Analyzer getAnalyzer(boolean isKeyword) {
    if (isKeyword) {
        return new StandardAnalyzer(Version.LUCENE_30, Collections.EMPTY_SET);
        //return new SimpleAnalyzer();
    }//from w w w. j a v a 2s  .c  om
    return new StandardAnalyzer(Version.LUCENE_30);
}

From source file:org.apache.sling.osgi.obr.Repository.java

public Iterator getResourcesByCategory(String categoryName) {
    this.ensureLoaded();

    Set resources = (Set) this.resourcesByCategory.get(categoryName);
    if (resources != null) {
        return resources.iterator();
    }//  w w w  .j av a  2  s .c om
    return Collections.EMPTY_SET.iterator();
}

From source file:org.apache.camel.impl.DefaultPackageScanClassResolver.java

@SuppressWarnings("unchecked")
public Set<Class<?>> findImplementations(Class parent, String... packageNames) {
    if (packageNames == null) {
        return Collections.EMPTY_SET;
    }// w w w  .ja  v  a 2 s . c om

    if (log.isDebugEnabled()) {
        log.debug("Searching for implementations of " + parent.getName() + " in packages: "
                + Arrays.asList(packageNames));
    }

    PackageScanFilter test = getCompositeFilter(new AssignableToPackageScanFilter(parent));
    Set<Class<?>> classes = new LinkedHashSet<Class<?>>();
    for (String pkg : packageNames) {
        find(test, pkg, classes);
    }

    if (log.isDebugEnabled()) {
        log.debug("Found: " + classes);
    }

    return classes;
}

Example usage for java.util Collections EMPTY_SET

Introduction

Prototype

Document

Usage