com.carrotsearch.hppc

Interface ObjectContainer<KType>

    • Method Summary

      Methods 
      Modifier and TypeMethod and Description
      booleancontains(KType e)
      Lookup a given element in the container.
      <T extends ObjectPredicate<? super KType>> 
      T
      forEach(T predicate)
      Applies a predicate to container elements as long, as the predicate returns true.
      <T extends ObjectProcedure<? super KType>> 
      T
      forEach(T procedure)
      Applies a procedure to all container elements.
      booleanisEmpty()
      Shortcut for size() == 0.
      java.util.Iterator<ObjectCursor<KType>>iterator()
      Returns an iterator to a cursor traversing the collection.
      intsize()
      Return the current number of elements in this container.
      java.lang.Object[]toArray()
      Copies all elements from this container to an Object array.
      KType[]toArray(java.lang.Class<? super KType> clazz)
      Copies all elements from this container to an array of this container's component type.
    • Method Detail

      • iterator

        java.util.Iterator<ObjectCursor<KType>> iterator()
        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 (ObjectCursor<KType> c : container) {   System.out.println("index=" + c.index + " value=" + c.value); } 
        Specified by:
        iterator in interface java.lang.Iterable<ObjectCursor<KType>>
      • contains

        boolean contains(KType e)
        Lookup a given element in the container. This operation has no speed guarantees (may be linear with respect to the size of this container).
        Returns:
        Returns true if this container has an element equal to e.
      • size

        int size()
        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.
      • isEmpty

        boolean isEmpty()
        Shortcut for size() == 0.
      • toArray

        KType[] toArray(java.lang.Class<? super KType> clazz)
        Copies all elements from this container to an array of this container's component type. The returned array is always a copy, regardless of the storage used by the container.
      • toArray

        java.lang.Object[] toArray()
        Copies all elements from this container to an Object array. If you need an array of the type identical with this container's generic type, use toArray(Class).
        See Also:
        toArray(Class)
      • forEach

        <T extends ObjectProcedure<? super KType>> T forEach(T procedure)
        Applies a procedure to all container elements. Returns the argument (any subclass of ObjectProcedure. 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; 
      • forEach

        <T extends ObjectPredicate<? super KType>> T forEach(T predicate)
        Applies a predicate to container elements as long, as the predicate returns true. The iteration is interrupted otherwise.

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