Example usage for java.util List getClass

Introduction

In this page you can find the example usage for java.util List getClass.

Prototype

@HotSpotIntrinsicCandidate
public final native Class<?> getClass();

Source Link

Document

Returns the runtime class of this Object .

Usage

From source file:Main.java

public static void main(String[] args) {
    List<Integer> list = new LinkedList<Integer>();
    list.add(1);/*from  w  w  w  .jav  a 2 s .c o  m*/
    List<Integer> unmodifiableList = Collections.unmodifiableList(list);
    System.out.println(unmodifiableList.getClass());
    if (unmodifiableList.getClass().getName().contains("UnmodifiableList"))
        System.out.println(true);
}

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From source file:Main.java

public static void main(String[] args) throws Exception {
    String WRITE_OBJECT_SQL = "BEGIN " + "  INSERT INTO java_objects(object_id, object_name, object_value) "
            + "  VALUES (?, ?, empty_blob()) " + "  RETURN object_value INTO ?; " + "END;";
    String READ_OBJECT_SQL = "SELECT object_value FROM java_objects WHERE object_id = ?";

    Connection conn = getOracleConnection();
    conn.setAutoCommit(false);//w w  w  .ja  v a 2  s . c o m
    List<Object> list = new ArrayList<Object>();
    list.add("This is a short string.");
    list.add(new Integer(1234));
    list.add(new java.util.Date());

    // write object to Oracle
    long id = 0001;
    String className = list.getClass().getName();
    CallableStatement cstmt = conn.prepareCall(WRITE_OBJECT_SQL);

    cstmt.setLong(1, id);
    cstmt.setString(2, className);

    cstmt.registerOutParameter(3, java.sql.Types.BLOB);

    cstmt.executeUpdate();
    BLOB blob = (BLOB) cstmt.getBlob(3);
    OutputStream os = blob.getBinaryOutputStream();
    ObjectOutputStream oop = new ObjectOutputStream(os);
    oop.writeObject(list);
    oop.flush();
    oop.close();
    os.close();

    // Read object from oracle
    PreparedStatement pstmt = conn.prepareStatement(READ_OBJECT_SQL);
    pstmt.setLong(1, id);
    ResultSet rs = pstmt.executeQuery();
    rs.next();
    InputStream is = rs.getBlob(1).getBinaryStream();
    ObjectInputStream oip = new ObjectInputStream(is);
    Object object = oip.readObject();
    className = object.getClass().getName();
    oip.close();
    is.close();
    rs.close();
    pstmt.close();
    conn.commit();

    // de-serialize list a java object from a given objectID
    List listFromDatabase = (List) object;
    System.out.println("[After De-Serialization] list=" + listFromDatabase);
    conn.close();
}

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From source file:Main.java

@NonNull
public static Class getListTypeClass(List<?> list) {
    Class elementType;//  www .j av a 2 s. c o  m

    if (isEmpty(list)) {
        final Class<? extends List> listClass = list.getClass();
        final ParameterizedType genericSuperclass = (ParameterizedType) listClass.getGenericSuperclass();
        elementType = (Class) genericSuperclass.getActualTypeArguments()[0];
    } else {
        elementType = list.get(0).getClass();
    }

    return elementType;
}

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From source file:Main.java

/**
 * Wraps a List with the {@code Collections.unmodifiableList}, but only once.
 *
 * <p>Checks the {@link List} passed to ensure that it is not already a {@code Collections.unmodifiableLisy}.
 * If the parameter is a null or empty, then it returns {@code Collections.emptyList}.
 *
 * @param list {@link List} to wrap with {@code Collections.unmodifiableList}
 * @param <V>  Value type/*from  w ww.  j av a  2s .  co  m*/
 * @return An unmodifiable List.
 */
public static <V> List<V> unmodifiableList(final List<V> list) {
    if (isNotEmpty(list)) {
        if (!(exampleUnmodifiableList.getClass().equals(list.getClass()))) {
            return Collections.unmodifiableList(list);
        }
        return list;
    }
    return Collections.emptyList();
}

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From source file:com.cedarsoft.history.core.GlazedPerformanceTest.java

private static StopWatch checkPerformance(@Nonnull List<String> list) {
    StopWatch stopWatch = new StopWatch();

    stopWatch.start("adding to " + list.getClass().getName());
    for (int i = 0; i < 100000; i++) {
        list.add(String.valueOf(i));
    }// w  w w .ja va2 s. c  o m
    stopWatch.stop();

    stopWatch.start("iterating through " + list.getClass().getName());
    for (String currentEntry : list) {
        assertNotNull(currentEntry);
    }
    stopWatch.stop();

    assertNotNull(stopWatch);
    return stopWatch;
}

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From source file:projekat.rest_client.Test.java

public static void mainsss(String[] args) throws KeyStoreException, IOException, NoSuchAlgorithmException,
        CertificateException, KeyManagementException, Exception {
    //        String uri = "https://localhost:8443/secure/rest/clients/search/as";

    RestTemplateFactory factory = new RestTemplateFactory();
    factory.afterPropertiesSet();// ww  w . j  a v  a  2s.c o  m

    String uri = "https://localhost:8443/secure/rest/places";
    String uri2 = "https://localhost:8443/secure/rest/clients/search/8";

    Response<List<Mesto>> executeGetRequest = factory.executeRequest(uri,
            (Class<List<Mesto>>) (Object) List.class, HttpMethod.GET);

    Response<LinkedList<Klijent>> executeRequest = factory.executeRequest(uri2,
            (Class<LinkedList<Klijent>>) (Object) LinkedList.class, HttpMethod.GET);
    List<Klijent> data = executeRequest.getData();
    System.out.println("Tip liste: " + data.getClass().getSimpleName());
    for (Klijent klijent : data) {
        System.out.println("Klijent: " + klijent.getIme());
    }

    List<Mesto> mesta = executeGetRequest.getData();
    System.out.println(mesta);
    for (Mesto m : mesta) {
        System.out.println("Mesto: " + m);
    }
}

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From source file:naftoreiclag.flowchartarch.ParseFiler.java

public static Genes readGenes() throws IOException {
    List<String> data = FileUtils.readLines(new File("file.txt"));

    System.out.println(data.getClass().toString());
    System.out.println(data.size());

    Genes genes = new Genes();
    List<Element> linage = new ArrayList<Element>();
    linage.add(0, genes);/*from   w  w w.  ja va2 s .c  o m*/

    for (String line : data) {
        // Track where we are on the string
        int head = 0;

        // Depth
        for (; head < line.length(); ++head) {
            if (line.charAt(head) != tab) {
                break;
            }
        }
        int depth = head;

        if (depth < 1) {
            continue;
        }

        // Type name
        for (; head < line.length(); ++head) {
            if (line.charAt(head) == sep) {
                break;
            }
        }
        String name = line.substring(depth, head);
        ++head;

        System.out.println("depth: " + depth + " type: " + name);

        // parse accordingly
        Element el = parse(name);

        linage.add(depth, el);

        linage.get(depth - 1).addChild(el);

    }

    return genes;

}

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From source file:org.rivalry.core.funcprog.ListUtils.java

/**
 * @param list List.//from  w w  w .j  av  a 2s.  c  o m
 * 
 * @return a new instance of the given type of list.
 */
private static <E> List<E> newInstance(final List<E> list) {
    List<E> answer = null;

    try {
        @SuppressWarnings("unchecked")
        final List<E> newList = list.getClass().newInstance();
        answer = newList;
    } catch (final InstantiationException e) {
        throw new RuntimeException(e.getMessage());
    } catch (final IllegalAccessException e) {
        throw new RuntimeException(e.getMessage());
    }

    return answer;
}

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From source file:Lists.java

public static <T> List<T> normalize(List<T> list) {
    switch (list.size()) {
    case 0://from   w w w .  j  ava  2 s. co m
        return create();
    case 1: {
        if (list.getClass() == SINGLETON_LIST_CLASS) {
            return list;
        }
        return create(list.get(0));
    }
    default:
        if (list.getClass() == MULTI_LIST_CLASS) {
            return list;
        }
        return new ArrayList<T>(list);
    }
}

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From source file:org.docx4j.template.utils.WMLPackageUtils.java

public static <T> List<T> getChildrenElements(Object source, Class<T> targetClass) {
    List<T> result = new ArrayList<T>();
    //?/*from   w w w .  j  a va  2s. c o m*/
    Object target = XmlUtils.unwrap(source);
    //if (target.getClass().equals(targetClass)) {
    if (targetClass.isAssignableFrom(target.getClass())) {
        result.add((T) target);
    } else if (target instanceof ContentAccessor) {
        List<?> children = ((ContentAccessor) target).getContent();
        //if (children.getClass().equals(targetClass)) {
        if (targetClass.isAssignableFrom(children.getClass())) {
            result.add((T) children);
        }
    }
    return result;
}

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