Package gnu.trove.set

Interface TIntSet

    • Method Summary

      All Methods Instance Methods Abstract Methods 
      Modifier and Type Method Description
      boolean add​(int entry)
      Inserts a value into the set.
      boolean addAll​(int[] array)
      Adds all of the elements in the array to the set.
      boolean addAll​(TIntCollection collection)
      Adds all of the elements in the TIntCollection to the set.
      boolean addAll​(java.util.Collection<? extends java.lang.Integer> collection)
      Adds all of the elements in collection to the set.
      void clear()
      Empties the set.
      boolean contains​(int entry)
      Returns true if this set contains the specified element.
      boolean containsAll​(int[] array)
      Tests the set to determine if all of the elements in array are present.
      boolean containsAll​(TIntCollection collection)
      Tests the set to determine if all of the elements in TIntCollection are present.
      boolean containsAll​(java.util.Collection<?> collection)
      Tests the set to determine if all of the elements in collection are present.
      boolean equals​(java.lang.Object o)
      Compares the specified object with this set for equality.
      boolean forEach​(TIntProcedure procedure)
      Executes procedure for each element in the set.
      int getNoEntryValue()
      Returns the value that is used to represent null.
      int hashCode()
      Returns the hash code value for this set.
      boolean isEmpty()
      Returns true if this set contains no elements.
      TIntIterator iterator()
      Creates an iterator over the values of the set.
      boolean remove​(int entry)
      Removes entry from the set.
      boolean removeAll​(int[] array)
      Removes all of the elements in array from the set.
      boolean removeAll​(TIntCollection collection)
      Removes all of the elements in TIntCollection from the set.
      boolean removeAll​(java.util.Collection<?> collection)
      Removes all of the elements in collection from the set.
      boolean retainAll​(int[] array)
      Removes any values in the set which are not contained in array.
      boolean retainAll​(TIntCollection collection)
      Removes any values in the set which are not contained in TIntCollection.
      boolean retainAll​(java.util.Collection<?> collection)
      Removes any values in the set which are not contained in collection.
      int size()
      Returns the number of elements in this set (its cardinality).
      int[] toArray()
      Returns an array containing all of the elements in this set.
      int[] toArray​(int[] dest)
      Returns an array containing elements in this set.

    • Method Detail

      • getNoEntryValue

        int getNoEntryValue()
        Returns the value that is used to represent null. The default value is generally zero, but can be configured during construction of the collection.
        Specified by:
        getNoEntryValue in interface TIntCollection
        Returns:
        the value that represents null

      • size

        int size()
        Returns the number of elements in this set (its cardinality). If this set contains more than Integer.MAX_VALUE elements, returns Integer.MAX_VALUE.
        Specified by:
        size in interface TIntCollection
        Returns:
        the number of elements in this set (its cardinality)

      • isEmpty

        boolean isEmpty()
        Returns true if this set contains no elements.
        Specified by:
        isEmpty in interface TIntCollection
        Returns:
        true if this set contains no elements

      • contains

        boolean contains​(int entry)
        Returns true if this set contains the specified element.
        Specified by:
        contains in interface TIntCollection
        Parameters:
        entry - an int value
        Returns:
        true if the set contains the specified element.

      • iterator

        TIntIterator iterator()
        Creates an iterator over the values of the set. The iterator supports element deletion.
        Specified by:
        iterator in interface TIntCollection
        Returns:
        an TIntIterator value

      • toArray

        int[] toArray()
        Returns an array containing all of the elements in this set. If this set makes any guarantees as to what order its elements are returned by its iterator, this method must return the elements in the same order.

        The returned array will be "safe" in that no references to it are maintained by this set. (In other words, this method must allocate a new array even if this set is backed by an array). The caller is thus free to modify the returned array.

        This method acts as bridge between array-based and collection-based APIs.

        Specified by:
        toArray in interface TIntCollection
        Returns:
        an array containing all the elements in this set

      • toArray

        int[] toArray​(int[] dest)
        Returns an array containing elements in this set.

        If this set fits in the specified array with room to spare (i.e., the array has more elements than this set), the element in the array immediately following the end of the set is set to getNoEntryValue(). (This is useful in determining the length of this set only if the caller knows that this set does not contain any elements representing null.)

        If the native array is smaller than the set size, the array will be filled with elements in Iterator order until it is full and exclude the remainder.

        If this set makes any guarantees as to what order its elements are returned by its iterator, this method must return the elements in the same order.

        Specified by:
        toArray in interface TIntCollection
        Parameters:
        dest - the array into which the elements of this set are to be stored.
        Returns:
        an int[] containing all the elements in this set
        Throws:
        java.lang.NullPointerException - if the specified array is null

      • add

        boolean add​(int entry)
        Inserts a value into the set.
        Specified by:
        add in interface TIntCollection
        Parameters:
        entry - a int value
        Returns:
        true if the set was modified by the add operation

      • remove

        boolean remove​(int entry)
        Removes entry from the set.
        Specified by:
        remove in interface TIntCollection
        Parameters:
        entry - an int value
        Returns:
        true if the set was modified by the remove operation.

      • containsAll

        boolean containsAll​(java.util.Collection<?> collection)
        Tests the set to determine if all of the elements in collection are present.
        Specified by:
        containsAll in interface TIntCollection
        Parameters:
        collection - a Collection value
        Returns:
        true if all elements were present in the set.

      • containsAll

        boolean containsAll​(TIntCollection collection)
        Tests the set to determine if all of the elements in TIntCollection are present.
        Specified by:
        containsAll in interface TIntCollection
        Parameters:
        collection - a TIntCollection value
        Returns:
        true if all elements were present in the set.

      • containsAll

        boolean containsAll​(int[] array)
        Tests the set to determine if all of the elements in array are present.
        Specified by:
        containsAll in interface TIntCollection
        Parameters:
        array - as array of int primitives.
        Returns:
        true if all elements were present in the set.

      • addAll

        boolean addAll​(java.util.Collection<? extends java.lang.Integer> collection)
        Adds all of the elements in collection to the set.
        Specified by:
        addAll in interface TIntCollection
        Parameters:
        collection - a Collection value
        Returns:
        true if the set was modified by the add all operation.

      • addAll

        boolean addAll​(TIntCollection collection)
        Adds all of the elements in the TIntCollection to the set.
        Specified by:
        addAll in interface TIntCollection
        Parameters:
        collection - a TIntCollection value
        Returns:
        true if the set was modified by the add all operation.

      • addAll

        boolean addAll​(int[] array)
        Adds all of the elements in the array to the set.
        Specified by:
        addAll in interface TIntCollection
        Parameters:
        array - a array of int primitives.
        Returns:
        true if the set was modified by the add all operation.

      • retainAll

        boolean retainAll​(java.util.Collection<?> collection)
        Removes any values in the set which are not contained in collection.
        Specified by:
        retainAll in interface TIntCollection
        Parameters:
        collection - a Collection value
        Returns:
        true if the set was modified by the retain all operation

      • retainAll

        boolean retainAll​(TIntCollection collection)
        Removes any values in the set which are not contained in TIntCollection.
        Specified by:
        retainAll in interface TIntCollection
        Parameters:
        collection - a TIntCollection value
        Returns:
        true if the set was modified by the retain all operation

      • retainAll

        boolean retainAll​(int[] array)
        Removes any values in the set which are not contained in array.
        Specified by:
        retainAll in interface TIntCollection
        Parameters:
        array - an array of int primitives.
        Returns:
        true if the set was modified by the retain all operation

      • removeAll

        boolean removeAll​(java.util.Collection<?> collection)
        Removes all of the elements in collection from the set.
        Specified by:
        removeAll in interface TIntCollection
        Parameters:
        collection - a Collection value
        Returns:
        true if the set was modified by the remove all operation.

      • removeAll

        boolean removeAll​(TIntCollection collection)
        Removes all of the elements in TIntCollection from the set.
        Specified by:
        removeAll in interface TIntCollection
        Parameters:
        collection - a TIntCollection value
        Returns:
        true if the set was modified by the remove all operation.

      • removeAll

        boolean removeAll​(int[] array)
        Removes all of the elements in array from the set.
        Specified by:
        removeAll in interface TIntCollection
        Parameters:
        array - an array of int primitives.
        Returns:
        true if the set was modified by the remove all operation.

      • forEach

        boolean forEach​(TIntProcedure procedure)
        Executes procedure for each element in the set.
        Specified by:
        forEach in interface TIntCollection
        Parameters:
        procedure - a TIntProcedure value
        Returns:
        false if the loop over the set terminated because the procedure returned false for some value.

      • equals

        boolean equals​(java.lang.Object o)
        Compares the specified object with this set for equality. Returns true if the specified object is also a set, the two sets have the same size, and every member of the specified set is contained in this set (or equivalently, every member of this set is contained in the specified set). This definition ensures that the equals method works properly across different implementations of the set interface.
        Specified by:
        equals in interface TIntCollection
        Overrides:
        equals in class java.lang.Object
        Parameters:
        o - object to be compared for equality with this set
        Returns:
        true if the specified object is equal to this set

      • hashCode

        int hashCode()
        Returns the hash code value for this set. The hash code of a set is defined to be the sum of the hash codes of the elements in the set. This ensures that s1.equals(s2) implies that s1.hashCode()==s2.hashCode() for any two sets s1 and s2, as required by the general contract of Object.hashCode().
        Specified by:
        hashCode in interface TIntCollection
        Overrides:
        hashCode in class java.lang.Object
        Returns:
        the hash code value for this set
        See Also:
        Object.equals(Object), Set.equals(Object)