Package com.google.common.collect

Interface MapConstraint<K,V>

@GwtCompatible @Beta @Deprecated(since="2022-12-01") public interface MapConstraint<K,V>
Deprecated.
The Google Guava Core Libraries are deprecated and will not be part of the AEM SDK after April 2023
A constraint on the keys and values that may be added to a Map or Multimap. For example, MapConstraints.notNull(), which prevents a map from including any null keys or values, could be implemented like this: 
   

    public void checkKeyValue(Object key, Object value) {
      if (key == null || value == null) {
        throw new NullPointerException();
      }
    }

In order to be effective, constraints should be deterministic; that is, they should not depend on state that can change (such as external state, random variables, and time) and should only depend on the value of the passed-in key and value. A non-deterministic constraint cannot reliably enforce that all the collection's elements meet the constraint, since the constraint is only enforced when elements are added.

Since:
3.0
See Also:

  • Method Summary

    Modifier and Type
    Method
    Description
    void
    checkKeyValue(K key, V value)
    Deprecated.
    Throws a suitable RuntimeException if the specified key or value is illegal.
    String
    toString()
    Deprecated.
    Returns a brief human readable description of this constraint, such as "Not null".

  • Method Details

    • checkKeyValue

      void checkKeyValue(@Nullable K key, @Nullable V value)
      Deprecated.
      Throws a suitable RuntimeException if the specified key or value is illegal. Typically this is either a NullPointerException, an IllegalArgumentException, or a ClassCastException, though an application-specific exception class may be used if appropriate.

    • toString

      String toString()
      Deprecated.
      Returns a brief human readable description of this constraint, such as "Not null".
      Overrides:
      toString in class Object