Example usage for java.util Collection contains

Introduction

In this page you can find the example usage for java.util Collection contains.

Prototype

boolean contains(Object o);

Source Link

Document

Returns true if this collection contains the specified element.

Usage

From source file:Main.java

public static <T1> List<T1> allOverlaps(Collection<T1> lst, Collection<T1> lst_) {
    List<T1> overlaps = new ArrayList<>();
    for (T1 elem : lst) {
        if (lst_.contains(elem))
            overlaps.add(elem);//from w  ww . j  a  v  a2 s.  c o m
    }
    return overlaps;
}

From source file:Main.java

/**
 * Checks if the collection contains only the given allowed items. <tt>list</tt> 
 * may contain zero to max(allowedItems) items from allowedItems.
 * /*from  ww w  . ja v a2s.  c o  m*/
 * <p><b>Examples:</b><br>
 * <tt>containsOnly(Arrays.asList(new Integer[] { 1, 2, 3 }), Arrays.asList(new Integer[] { }))       --> true</tt><br>
 * <tt>containsOnly(Arrays.asList(new Integer[] { 1, 2, 3 }), Arrays.asList(new Integer[] { 1, 2 }))  --> false, 3 missing</tt><br>
 * <tt>containsOnly(Arrays.asList(new Integer[] { 1, 2, 3 }), Arrays.asList(new Integer[] { 1, 99 })) --> false, 3 missing</tt>
 */
public static <T> boolean containsOnly(Collection<T> list, Collection<T> allowedItems) {
    for (T item : list) {
        if (!allowedItems.contains(item)) {
            return false;
        }
    }

    return true;
}

From source file:Main.java

/**
 * Returns all objects in list1 that are not in list2
 *
 * @param <T> Type of items in the collection
 * @param list1 First collection/*from  ww  w.j  a  va  2  s  . c  o m*/
 * @param list2 Second collection
 * @return The collection difference list1 - list2
 */
public static <T> Set<T> diffAsSet(Collection<T> list1, Collection<T> list2) {
    Set<T> diff = new HashSet<T>();
    for (T t : list1) {
        if (!list2.contains(t)) {
            diff.add(t);
        }
    }
    return diff;
}

From source file:com.creditcloud.common.taglib.Functions.java

/**
 * ??????./*from   w  ww. j  av a 2 s  . c o  m*/
 * 
 * ????
 * 
 * @param all
 * @param items
 * @return 
 */
public static boolean containsAny(Collection all, Collection items) {
    for (Object item : items) {
        if (all.contains(item)) {
            return true;
        }
    }
    return false;
}

From source file:Main.java

public static void checkCollectionDoesNotContainNull(final Collection<?> collection) {
    boolean containsNull = false;

    try {/*ww  w.j  av  a  2s  .  c o  m*/
        containsNull = collection.contains(null);
    } catch (NullPointerException ex) {
        // Not a problem.
    }

    if (containsNull) {
        throw new NullPointerException();
    }
}

From source file:Main.java

public static <A> boolean containsAny(Collection<A> as, Collection<A> bs) {
    boolean result = false;
    for (A b : bs)
        if (as.contains(b)) {
            result = true;//from  w w  w  . j  ava  2s .c  om
            break;
        }
    return result;
}

From source file:Main.java

public static <T> Collection<T> exclude(Collection<T> from, Collection<T> objects) {
    Collection<T> result = new ArrayList<T>();

    for (T t : from) {
        if (!objects.contains(t)) {
            result.add(t);//from  ww w. ja v a  2  s . c om
        }
    }

    return result;
}

From source file:Main.java

public static <T> Set<T> intersect(Collection<T> set1, Collection<T> set2) {
    HashSet<T> set = new HashSet<T>();

    for (T object : set1) {
        if (set2.contains(object)) {
            set.add(object);/*from   ww w  .j  av a 2  s . co m*/
        }
    }

    return set;
}

From source file:Main.java

private static <T> boolean removeAllFromArrayList(ArrayList<T> collection, Collection<?> toRemove) {
    boolean result = false;
    for (int i = collection.size(); --i >= 0;)
        if (toRemove.contains(collection.get(i))) {
            collection.remove(i);/*from   ww  w.j a v  a 2  s.c  o m*/
            result = true;
        }
    return result;
}

From source file:com.netflix.spinnaker.gate.retrofit.UpstreamBadRequest.java

public static Exception classifyError(RetrofitError error, Collection<Integer> supportedHttpStatuses) {
    if (error.getKind() == HTTP && supportedHttpStatuses.contains(error.getResponse().getStatus())) {
        return new UpstreamBadRequest(error);
    } else {/*from  ww  w  . j  a  v a 2 s . c om*/
        return error;
    }
}