Package org.apache.wayang.core.util

Class Canonicalizer<T>

  • All Implemented Interfaces:
    java.lang.Iterable<T>, java.util.Collection<T>, java.util.Set<T>
    public class Canonicalizer<T>
extends java.lang.Object
implements java.util.Set<T>
    This utility maintains canonical sets of objects.

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      boolean add​(T t)  
      void addAll​(java.lang.Iterable<? extends T> objs)  
      boolean addAll​(java.util.Collection<? extends T> c)  
      void clear()  
      boolean contains​(java.lang.Object o)  
      boolean containsAll​(java.util.Collection<?> c)  
      boolean equals​(java.lang.Object o)  
      T getOrAdd​(T obj)
      Add the given element if it is not contained in this instance, yet.
      int hashCode()  
      boolean isEmpty()  
      java.util.Iterator<T> iterator()  
      boolean remove​(java.lang.Object o)  
      boolean removeAll​(java.util.Collection<?> c)  
      boolean retainAll​(java.util.Collection<?> c)  
      int size()  
      java.lang.Object[] toArray()  
      <T1> T1[] toArray​(T1[] a)  
      java.lang.String 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

        spliterator

    • Constructor Detail

      • Canonicalizer

        public Canonicalizer​(int numExpectedEntries)

      • Canonicalizer

        public Canonicalizer()

      • Canonicalizer

        public Canonicalizer​(java.lang.Iterable<? extends T> objs)

      • Canonicalizer

        public Canonicalizer​(java.util.Collection<? extends T> objs)

      • Canonicalizer

        public Canonicalizer​(T... objs)

    • Method Detail

      • getOrAdd

        public T getOrAdd​(T obj)
        Add the given element if it is not contained in this instance, yet.
        Parameters:
        obj - the element to be added potentially
        Returns:
        obj if it was added, otherwise the existing element

      • addAll

        public void addAll​(java.lang.Iterable<? extends T> objs)

      • size

        public int size()
        Specified by:
        size in interface java.util.Collection<T>
        Specified by:
        size in interface java.util.Set<T>

      • isEmpty

        public boolean isEmpty()
        Specified by:
        isEmpty in interface java.util.Collection<T>
        Specified by:
        isEmpty in interface java.util.Set<T>

      • contains

        public boolean contains​(java.lang.Object o)
        Specified by:
        contains in interface java.util.Collection<T>
        Specified by:
        contains in interface java.util.Set<T>

      • iterator

        public java.util.Iterator<T> iterator()
        Specified by:
        iterator in interface java.util.Collection<T>
        Specified by:
        iterator in interface java.lang.Iterable<T>
        Specified by:
        iterator in interface java.util.Set<T>

      • toArray

        public java.lang.Object[] toArray()
        Specified by:
        toArray in interface java.util.Collection<T>
        Specified by:
        toArray in interface java.util.Set<T>

      • toArray

        public <T1> T1[] toArray​(T1[] a)
        Specified by:
        toArray in interface java.util.Collection<T>
        Specified by:
        toArray in interface java.util.Set<T>

      • add

        public boolean add​(T t)
        Specified by:
        add in interface java.util.Collection<T>
        Specified by:
        add in interface java.util.Set<T>

      • remove

        public boolean remove​(java.lang.Object o)
        Specified by:
        remove in interface java.util.Collection<T>
        Specified by:
        remove in interface java.util.Set<T>

      • containsAll

        public boolean containsAll​(java.util.Collection<?> c)
        Specified by:
        containsAll in interface java.util.Collection<T>
        Specified by:
        containsAll in interface java.util.Set<T>

      • addAll

        public boolean addAll​(java.util.Collection<? extends T> c)
        Specified by:
        addAll in interface java.util.Collection<T>
        Specified by:
        addAll in interface java.util.Set<T>

      • retainAll

        public boolean retainAll​(java.util.Collection<?> c)
        Specified by:
        retainAll in interface java.util.Collection<T>
        Specified by:
        retainAll in interface java.util.Set<T>

      • removeAll

        public boolean removeAll​(java.util.Collection<?> c)
        Specified by:
        removeAll in interface java.util.Collection<T>
        Specified by:
        removeAll in interface java.util.Set<T>

      • clear

        public void clear()
        Specified by:
        clear in interface java.util.Collection<T>
        Specified by:
        clear in interface java.util.Set<T>

      • toString

        public java.lang.String toString()
        Overrides:
        toString in class java.lang.Object

      • equals

        public boolean equals​(java.lang.Object o)
        Specified by:
        equals in interface java.util.Collection<T>
        Specified by:
        equals in interface java.util.Set<T>
        Overrides:
        equals in class java.lang.Object

      • hashCode

        public int hashCode()
        Specified by:
        hashCode in interface java.util.Collection<T>
        Specified by:
        hashCode in interface java.util.Set<T>
        Overrides:
        hashCode in class java.lang.Object