Package org.apache.ofbiz.base.util.collections

Class LifoSet<V>

  • All Implemented Interfaces:
    java.io.Serializable, java.lang.Iterable<V>, java.util.Collection<V>, java.util.Set<V>
    public class LifoSet<V>
extends java.util.AbstractSet<V>
implements java.io.Serializable
    LifoSet - Set interface wrapper around a LinkedList
    See Also:
    Serialized Form

    • Constructor Summary

      Constructors 
      Constructor Description
      LifoSet()
      Constructs a set containing the elements of the specified collection, in the order they are returned by the collection's iterator.
      LifoSet​(int capacity)
      Constructs a set containing the elements of the specified collection, in the order they are returned by the collection's iterator.

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      boolean add​(V obj)  
      boolean empty()  
      java.util.Iterator<V> iterator()  
      V peek()  
      V pop()  
      void push​(V item)  
      int search​(java.lang.Object item)  
      void setCapactity​(int capacity)
      Sets the max capacity for this LifoSet
      int size()  

      • Methods inherited from class java.util.AbstractSet

        equals, hashCode, removeAll

      • Methods inherited from class java.util.AbstractCollection

        addAll, clear, contains, containsAll, isEmpty, remove, retainAll, toArray, toArray, toString

      • Methods inherited from class java.lang.Object

        clone, finalize, getClass, notify, notifyAll, wait, wait, wait

      • Methods inherited from interface java.util.Collection

        parallelStream, removeIf, stream, toArray

      • Methods inherited from interface java.lang.Iterable

        forEach

      • Methods inherited from interface java.util.Set

        addAll, clear, contains, containsAll, isEmpty, remove, retainAll, spliterator, toArray, toArray

    • Constructor Detail

      • LifoSet

        public LifoSet()
        Constructs a set containing the elements of the specified collection, in the order they are returned by the collection's iterator.

      • LifoSet

        public LifoSet​(int capacity)
        Constructs a set containing the elements of the specified collection, in the order they are returned by the collection's iterator.
        Parameters:
        capacity - the collection whose elements are to be placed into this set.

    • Method Detail

      • setCapactity

        public void setCapactity​(int capacity)
        Sets the max capacity for this LifoSet
        Parameters:
        capacity - Max Size (as integer)

      • size

        public int size()
        Specified by:
        size in interface java.util.Collection<V>
        Specified by:
        size in interface java.util.Set<V>
        Specified by:
        size in class java.util.AbstractCollection<V>
        See Also:
        Collection.size()

      • add

        public boolean add​(V obj)
        Specified by:
        add in interface java.util.Collection<V>
        Specified by:
        add in interface java.util.Set<V>
        Overrides:
        add in class java.util.AbstractCollection<V>
        See Also:
        Collection.add(java.lang.Object)

      • iterator

        public java.util.Iterator<V> iterator()
        Specified by:
        iterator in interface java.util.Collection<V>
        Specified by:
        iterator in interface java.lang.Iterable<V>
        Specified by:
        iterator in interface java.util.Set<V>
        Specified by:
        iterator in class java.util.AbstractCollection<V>
        See Also:
        Collection.iterator()

      • empty

        public boolean empty()
        Returns:
        true if and only if this stack contains no items; false otherwise
        See Also:
        Stack.empty()

      • push

        public void push​(V item)
        Parameters:
        item - The item to be pushed onto this stack
        See Also:
        Stack.push(java.lang.Object)

      • pop

        public V pop()
      throws java.util.EmptyStackException
        Returns:
        The object at the top of this stack
        Throws:
        java.util.EmptyStackException - If this stack is empty
        See Also:
        Stack.pop()

      • peek

        public V peek()
       throws java.util.EmptyStackException
        Returns:
        The object at the top of this stack
        Throws:
        java.util.EmptyStackException - If this stack is empty
        See Also:
        Stack.peek()

      • search

        public int search​(java.lang.Object item)
        Parameters:
        item - The desired object
        Returns:
        The 1-based position from the top of the stack where the object is located; the return value -1 indicates that the object is not on the stack
        See Also:
        Stack.search(java.lang.Object)