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 (imported from Google Collections Library)

Author:

Kevin Bourrillion

areEqual

boolean areEqual()

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

entriesOnlyOnLeft

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

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

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

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
               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 Object

Parameters:

object - the reference object with which to compare.

Returns:

true if this object is the same as the obj argument; false otherwise.

See Also:

Object.hashCode(), Hashtable

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 Object

Returns:

a hash code value for this object.

See Also:

Object.equals(java.lang.Object), Hashtable