Example usage for java.util Collections emptyList

Introduction

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

Prototype

@SuppressWarnings("unchecked")
public static final <T> List<T> emptyList()

Source Link

Document

Returns an empty list (immutable).

Usage

From source file:net.sourceforge.fenixedu.presentationTier.renderers.providers.candidacy.DistrictSubdivisionForResidenceInformationFormProvider.java

@Override
public Object provide(Object source, Object currentValue) {
    final ResidenceInformationForm residenceInformationForm = (ResidenceInformationForm) source;
    if (residenceInformationForm.getDistrictOfResidence() != null) {
        List<DistrictSubdivision> result = new ArrayList<DistrictSubdivision>(
                residenceInformationForm.getDistrictOfResidence().getDistrictSubdivisionsSet());
        Collections.sort(result, new BeanComparator("name"));
        return result;
    }//from w w w . j  a v  a  2  s . co  m

    return Collections.emptyList();
}

From source file:br.com.thiaguten.persistence.demo.jpa.UserDAOImpl.java

@Override
public List<User> findByName(String name) {
    String jpql = "SELECT u FROM User u WHERE UPPER(u.name) LIKE :name";
    Map<String, String> namedParams = Collections.singletonMap("name", "%" + name.toUpperCase() + "%"); // like IGNORECASE and matchmode ANYWHERE
    List<User> results = persistenceProvider.findByQueryAndNamedParams(getPersistenceClass(), jpql,
            namedParams);/*from   w w w  . j a  va 2 s .c  om*/
    if (results.isEmpty()) {
        return Collections.emptyList();
    } else {
        return Collections.unmodifiableList(results);
    }
}

From source file:com.seyren.core.domain.User.java

@Override
public Collection<? extends GrantedAuthority> getAuthorities() {
    Set<String> roles = this.getRoles();

    if (roles == null) {
        return Collections.emptyList();
    }/*from  w ww.  j a v a2s.  c  o m*/

    Set<GrantedAuthority> authorities = new HashSet<GrantedAuthority>();
    for (String role : roles) {
        authorities.add(new SimpleGrantedAuthority(role));
    }

    return authorities;
}

From source file:org.carewebframework.vista.api.JsonDomainFactory.java

/**
 * Fetch multiple instances of the domain class from the data store.
 *///from  w  ww  .  j  a v a2 s . c o m
@SuppressWarnings("unchecked")
@Override
public <T extends Object> List<T> fetchObjects(Class<T> clazz, String[] ids) {
    if (ids == null || ids.length == 0) {
        return Collections.emptyList();
    }

    String json = VistAUtil.getBrokerSession().callRPC("RGSER FETCH", PREFIX + getAlias(clazz), ids);
    return (List<T>) JSONUtil.deserialize(json);
}

From source file:com.bazaarvoice.jolt.shiftr.ShiftrWriter.java

public ShiftrWriter(String dotNotation) {

    if (dotNotation.contains("@") || dotNotation.contains("*") || dotNotation.contains("$")) {
        throw new SpecException("DotNotation (write key) can not contain '@', '*', or '$'.");
    }/*from   ww w  .j  av a2s  .  c o  m*/

    List<PathElement> paths;
    Traversr trav;

    if (StringUtils.isNotBlank(dotNotation)) {
        String[] split = dotNotation.split("\\.");

        paths = ShiftrSpec.parse(split);
        trav = new ShiftrTraversr(dotNotation);
    } else {
        paths = Collections.emptyList();
        trav = new ShiftrTraversr("");
    }

    List<EvaluatablePathElement> evalPaths = new ArrayList<EvaluatablePathElement>(paths.size());
    for (PathElement pe : paths) {
        if (!(pe instanceof EvaluatablePathElement)) {
            throw new SpecException("RHS key=" + pe.getRawKey() + " is not a valid RHS key.");
        }

        evalPaths.add((EvaluatablePathElement) pe);
    }

    this.elements = Collections.unmodifiableList(evalPaths);
    this.traversr = trav;
}

From source file:org.ebayopensource.twin.TwinConnection.java

/**
 * Send an OPTIONS request to the server.
 * @param path the URL to query/*from  w w w  .j  a v a  2  s.c o  m*/
 * @return The list of allowed HTTP methods, or an empty list if the Allow header is not present in the response.
 * @throws TwinException
 */
List<String> options(String path) throws TwinException {
    try {
        BasicHttpRequest request = new BasicHttpRequest("OPTIONS", url + path);
        HttpClient client = getClient();
        HttpResponse response = client.execute(new HttpHost(url.getHost(), url.getPort()), request);
        Header hdr = response.getFirstHeader("Allow");
        if (hdr == null || hdr.getValue().isEmpty())
            return Collections.emptyList();
        return Arrays.asList(hdr.getValue().split("\\s*,\\s*"));
    } catch (IOException e) {
        throw TwinError.UnknownError.create("IOException when accessing RC", e);
    }
}

From source file:be.ordina.msdashboard.controllers.NodesControllerTest.java

@Test
public void getAllNodes() {
    doReturn(Collections.emptyList()).when(redisService).getAllNodes();

    Collection<Node> nodes = nodesController.getAllNodes();

    assertThat(nodes).isEmpty();/*from   w w w  .  j  a  va2 s .  c  o m*/
}

From source file:no.dusken.aranea.service.PageServiceImpl.java

public List<Person> getPhotographers(Page page) {
    List<Person> list = Collections.emptyList();
    try {//from  w w w  .j  a  va2s. c  om
        Map<String, Object> map = new HashMap<String, Object>();
        map.put("page", page);
        list = genericDao.getByNamedQuery("photographers_bypage", map);
    } catch (DataAccessException dae) {
        log.info("Unable to get photographs", dae);
    }
    return list;
}

From source file:com.frank.search.solr.core.convert.SolrJConverter.java

@Override
public <S, R> List<R> read(SolrDocumentList source, Class<R> type) {
    if (source == null) {
        return Collections.emptyList();
    }/*from w  w w. j  av  a 2s.com*/

    List<R> resultList = new ArrayList<R>(source.size());
    for (Map<String, ?> item : source) {
        resultList.add(read(type, item));
    }

    return resultList;
}

From source file:no.dusken.aranea.service.TagServiceImpl.java

public List<Tag> getTags() {
    List<Tag> list = Collections.emptyList();
    try {/*from  w  w  w  .j ava2 s.c o m*/
        list = genericDao.getByNamedQuery("tag_tags", null);
    } catch (DataAccessException dae) {
        log.info("Unable to get Tags", dae);
    }
    return list;
}