Package com.google.common.collect

Interface MapDifference<K,​V>

  • All Known Subinterfaces:
    SortedMapDifference<K,​V>
    @GwtCompatible
public interface MapDifference<K,​V>
    An object representing the differences between two maps.
    Since:
    2.0 (imported from Google Collections Library)

    • Nested Class Summary

      Nested Classes 
      Modifier and Type Interface Description
      static interface  MapDifference.ValueDifference<V>
      A difference between the mappings from two maps with the same key.

    • Method Summary

      All Methods Instance Methods Abstract Methods 
      Modifier and Type Method Description
      boolean areEqual()
      Returns true if there are no differences between the two maps; that is, if the maps are equal.
      java.util.Map<K,​MapDifference.ValueDifference<V>> entriesDiffering()
      Returns an unmodifiable map describing keys that appear in both maps, but with different values.
      java.util.Map<K,​V> entriesInCommon()
      Returns an unmodifiable map containing the entries that appear in both maps; that is, the intersection of the two maps.
      java.util.Map<K,​V> entriesOnlyOnLeft()
      Returns an unmodifiable map containing the entries from the left map whose keys are not present in the right map.
      java.util.Map<K,​V> entriesOnlyOnRight()
      Returns an unmodifiable map containing the entries from the right map whose keys are not present in the left map.
      boolean equals​(java.lang.Object object)
      Compares the specified object with this instance for equality.
      int hashCode()
      Returns the hash code for this instance.

    • Method Detail

      • areEqual

        boolean areEqual()
        Returns true if there are no differences between the two maps; that is, if the maps are equal.

      • entriesOnlyOnLeft

        java.util.Map<K,​V> entriesOnlyOnLeft()
        Returns an unmodifiable map containing the entries from the left map whose keys are not present in the right map.

      • entriesOnlyOnRight

        java.util.Map<K,​V> entriesOnlyOnRight()
        Returns an unmodifiable map containing the entries from the right map whose keys are not present in the left map.

      • entriesInCommon

        java.util.Map<K,​V> entriesInCommon()
        Returns an unmodifiable map containing the entries that appear in both maps; that is, the intersection of the two maps.

      • entriesDiffering

        java.util.Map<K,​MapDifference.ValueDifference<V>> entriesDiffering()
        Returns an unmodifiable map describing keys that appear in both maps, but with different values.

      • equals

        boolean equals​(@Nullable
               java.lang.Object object)
        Compares the specified object with this instance for equality. Returns true if the given object is also a MapDifference and the values returned by the entriesOnlyOnLeft(), entriesOnlyOnRight(), entriesInCommon() and entriesDiffering() of the two instances are equal.
        Overrides:
        equals in class java.lang.Object

      • hashCode

        int hashCode()
        Returns the hash code for this instance. This is defined as the hash code of 
           

   Arrays.asList(entriesOnlyOnLeft(), entriesOnlyOnRight(),
       entriesInCommon(), entriesDiffering())
        Overrides:
        hashCode in class java.lang.Object