Package com.carrotsearch.hppc

Class LongObjectHashMap.KeysContainer

    • Constructor Detail

      • KeysContainer

        public KeysContainer()

    • Method Detail

      • contains

        public boolean contains​(long e)
        Description copied from interface: LongContainer
        Lookup a given element in the container. This operation has no speed guarantees (may be linear with respect to the size of this container).
        Specified by:
        contains in interface LongContainer
        Specified by:
        contains in interface LongLookupContainer
        Returns:
        Returns true if this container has an element equal to e.

      • forEach

        public <T extends LongProcedure> T forEach​(T procedure)
        Description copied from interface: LongContainer
        Applies a procedure to all container elements. Returns the argument (any subclass of LongProcedure. This lets the caller to call methods of the argument by chaining the call (even if the argument is an anonymous type) to retrieve computed values, for example (IntContainer): 
         int count = container.forEach(new IntProcedure() {
   int count; // this is a field declaration in an anonymous class.
 
   public void apply(int value) {
     count++;
   }
 }).count;
        Specified by:
        forEach in interface LongContainer

      • forEach

        public <T extends LongPredicate> T forEach​(T predicate)
        Description copied from interface: LongContainer
        Applies a predicate to container elements as long, as the predicate returns true. The iteration is interrupted otherwise.
        Specified by:
        forEach in interface LongContainer

      • iterator

        public Iterator<LongCursor> iterator()
        Description copied from interface: LongContainer
        Returns an iterator to a cursor traversing the collection. The order of traversal is not defined. More than one cursor may be active at a time. The behavior of iterators is undefined if structural changes are made to the underlying collection.

        The iterator is implemented as a cursor and it returns the same cursor instance on every call to Iterator.next() (to avoid boxing of primitive types). To read the current list's value (or index in the list) use the cursor's public fields. An example is shown below. 

         for (LongCursor<long> c : container) {
   System.out.println("index=" + c.index + " value=" + c.value);
 }
        Specified by:
        iterator in interface Iterable<LongCursor>
        Specified by:
        iterator in interface LongContainer

      • size

        public int size()
        Description copied from interface: LongContainer
        Return the current number of elements in this container. The time for calculating the container's size may take O(n) time, although implementing classes should try to maintain the current size and return in constant time.
        Specified by:
        size in interface LongContainer

      • release

        public void release()
        Description copied from interface: LongCollection
        Removes all elements from the collection and additionally releases any internal buffers. Typically, if the object is to be reused, a simple LongCollection.clear() should be a better alternative since it'll avoid reallocation.
        Specified by:
        release in interface LongCollection
        See Also:
        LongCollection.clear()

      • removeAll

        public int removeAll​(LongPredicate predicate)
        Description copied from interface: LongCollection
        Removes all elements in this collection for which the given predicate returns true.
        Specified by:
        removeAll in interface LongCollection
        Returns:
        Returns the number of removed elements.

      • removeAll

        public int removeAll​(long e)
        Description copied from interface: LongCollection
        Removes all occurrences of e from this collection.
        Specified by:
        removeAll in interface LongCollection
        Parameters:
        e - Element to be removed from this collection, if present.
        Returns:
        The number of removed elements as a result of this call.

      • removeAll

        public int removeAll​(LongLookupContainer c)
        Default implementation uses a predicate for removal.
        Specified by:
        removeAll in interface LongCollection
        Returns:
        Returns the number of removed elements.

      • retainAll

        public int retainAll​(LongLookupContainer c)
        Default implementation uses a predicate for retaining.
        Specified by:
        retainAll in interface LongCollection
        Returns:
        Returns the number of removed elements.

      • toArray

        public long[] toArray()
        Default implementation of copying to an array.
        Specified by:
        toArray in interface LongContainer

      • toString

        public String toString()
        Convert the contents of this container to a human-friendly string.
        Overrides:
        toString in class Object