Example usage for java.util List isEmpty

Introduction

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

Prototype

boolean isEmpty();

Source Link

Document

Returns true if this list contains no elements.

Usage

From source file:grails.plugins.sitemapper.ValidationUtils.java

public static void assertDataObjectsAttr(List<PageMapDataObjectAttr> attrs) {
    if (attrs == null || attrs.isEmpty())
        throw new SitemapperException("Data object attributes can not be null or empty");
}

From source file:com.ufukuzun.myth.dialect.util.ExpressionUtils.java

public static boolean isDollarExpression(String value) {
    List<String> idFragments = splitIdFragments(value);
    return !idFragments.isEmpty() && idFragments.size() == 1
            && idFragments.get(0).matches(DOLLAR_EXPRESSION_PATTERN.pattern());
}

From source file:io.milton.httpclient.RespUtils.java

public static boolean hasChild(Element el, String name) {
    if (el == null)
        return false;
    List<Element> list = getElements(el, name);

    return !list.isEmpty();
}

From source file:net.przemkovv.sphinx.Utils.java

public static void cleanupFilesystem(List<File> files) {
    if (files != null && !files.isEmpty()) {
        File parent_dir = files.get(0).getParentFile();
        for (File file : files) {
            file.delete();/*from  w w w  . ja va2 s.  c o  m*/
        }
        parent_dir.delete();

    }
}

From source file:Main.java

public static <T> void addTailAndRemoveOldIfNeed(List<T> dest, List<T> src) {
    if (dest == null) {
        return;//from   w w  w . java 2s . c  o m
    }

    if (src == null || src.isEmpty()) {
        return;
    }

    removeDuplicate(dest, src);
    if (dest.isEmpty()) {
        dest.addAll(src);
    } else {
        dest.addAll(dest.size(), src);
    }
}

From source file:de.metas.ui.web.view.json.JSONDocumentViewOrderBy.java

public static List<JSONDocumentViewOrderBy> ofList(final List<DocumentQueryOrderBy> orderBys) {
    if (orderBys == null || orderBys.isEmpty()) {
        return ImmutableList.of();
    }/* w ww.jav  a2 s  .c om*/

    return orderBys.stream().map(orderBy -> of(orderBy)).filter(jsonOrderBy -> jsonOrderBy != null)
            .collect(GuavaCollectors.toImmutableList());
}

From source file:edu.cmu.cs.lti.ark.fn.identification.FrameIdentificationRelease.java

public static String getFirstTokenAndCpos(List<Integer> indices, Sentence sentence) {
    if (indices.isEmpty())
        return "";
    final Token firstToken = sentence.getTokens().get(indices.get(0));
    return firstToken.getForm().toLowerCase() + "."
            + nullToEmpty(firstToken.getPostag()).substring(0, 1).toLowerCase();

}

From source file:com.example.app.profile.ui.user.LoginLandingLinks.java

private static boolean canAccessMenuLink(MembershipOperation mop, List<Membership> memberships) {
    if (memberships.isEmpty())
        return false;
    return memberships.stream().anyMatch(m -> m.getOperations().contains(mop));
}

From source file:models.Email.java

public static boolean exists(String newEmail, boolean valid) {
    ExpressionList<Email> el = findByEmailAndIsValid(newEmail, valid);

    if (valid) {/*from  w w  w.  ja v a 2s.  co  m*/
        Email uniqueValidatedEmail = el.findUnique();
        return uniqueValidatedEmail != null;
    } else {
        List<Email> list = el.findList();
        return !list.isEmpty();
    }
}

From source file:Main.java

/**
 * Creates a list of values extracted from the provided list using the
 * specified value method, keeping the order of the provided list.
 *///w w w .  j  av a  2  s.c  om
@SuppressWarnings("unchecked")
public static <K, T> List<K> createList(List<T> list, String valueMethod) {
    List<K> valueList = new ArrayList<>(list.size());

    if (list.isEmpty()) {
        return valueList;
    }

    Class<?> elementClass = list.iterator().next().getClass();

    Method getValueMethod;

    try {
        getValueMethod = elementClass.getMethod(valueMethod, new Class[0]);
    } catch (Exception e) {
        throw new RuntimeException("Failed to get key method", e);
    }

    for (T element : list) {
        K value;

        try {
            value = (K) getValueMethod.invoke(element, (Object[]) null);
        } catch (Exception e) {
            throw new RuntimeException("Failed to get key", e);
        }

        valueList.add(value);
    }

    return valueList;
}