Class AbstractMultivaluedMap<K,V>

java.lang.Object
jakarta.ws.rs.core.AbstractMultivaluedMap<K,V>
Type Parameters:
K - the type of keys maintained by this map.
V - the type of mapped values.
All Implemented Interfaces:
MultivaluedMap<K,V>, Serializable, Map<K,List<V>>
Direct Known Subclasses:
MultivaluedHashMap

public abstract class AbstractMultivaluedMap<K,V> extends Object implements MultivaluedMap<K,V>, Serializable
Abstract skeleton implementation of a MultivaluedMap that is backed by a [key, multi-value] store represented as a Map<K, List<V>>.
Author:
Marek Potociar
See Also:
  • Field Details Link icon

    • store Link icon

      protected final Map<K,List<V>> store
      Backing store for the [key, multi-value] pairs.
  • Constructor Details Link icon

    • AbstractMultivaluedMap Link icon

      public AbstractMultivaluedMap(Map<K,List<V>> store)
      Initialize the backing store in the abstract parent multivalued map implementation.
      Parameters:
      store - the backing Map to be used as a [key, multi-value] store. Must not be null.
      Throws:
      NullPointerException - in case the underlying store parameter is null.
  • Method Details Link icon

    • putSingle Link icon

      public final void putSingle(K key, V value)

      Set the value for the key to be a one item list consisting of the supplied value. Any existing values will be replaced.

      NOTE: This implementation ignores null values; A supplied value of null is ignored and not added to the purged value list. As a result of such operation, empty value list would be registered for the supplied key. Overriding implementations may modify this behavior by redefining the addNull(java.util.List) method.
      Specified by:
      putSingle in interface MultivaluedMap<K,V>
      Parameters:
      key - the key
      value - the single value of the key. If the value is null it will be ignored.
    • addNull Link icon

      protected void addNull(List<V> values)

      Define the behavior for adding a null values to the value list.

      Default implementation is a no-op, i.e. the null values are ignored. Overriding implementations may modify this behavior by providing their own definitions of this method.
      Parameters:
      values - value list where the null value addition is being requested.
    • addFirstNull Link icon

      protected void addFirstNull(List<V> values)

      Define the behavior for adding a null values to the first position in the value list.

      Default implementation is a no-op, i.e. the null values are ignored. Overriding implementations may modify this behavior by providing their own definitions of this method.
      Parameters:
      values - value list where the null value addition is being requested.
    • add Link icon

      public final void add(K key, V value)

      Add a value to the current list of values for the supplied key.

      NOTE: This implementation ignores null values; A supplied value of null is ignored and not added to the value list. Overriding implementations may modify this behavior by redefining the addNull(java.util.List) method.
      Specified by:
      add in interface MultivaluedMap<K,V>
      Parameters:
      key - the key
      value - the value to be added.
    • addAll Link icon

      public final void addAll(K key, V... newValues)

      Add multiple values to the current list of values for the supplied key. If the supplied array of new values is empty, method returns immediately. Method throws a NullPointerException if the supplied array of values is null.

      NOTE: This implementation ignores null values; Any of the supplied values of null is ignored and not added to the value list. Overriding implementations may modify this behavior by redefining the addNull(java.util.List) method.
      Specified by:
      addAll in interface MultivaluedMap<K,V>
      Parameters:
      key - the key.
      newValues - the values to be added.
      Throws:
      NullPointerException - if the supplied array of new values is null.
    • addAll Link icon

      public final void addAll(K key, List<V> valueList)

      Add all the values from the supplied value list to the current list of values for the supplied key. If the supplied value list is empty, method returns immediately. Method throws a NullPointerException if the supplied array of values is null.

      NOTE: This implementation ignores null values; Any null value in the supplied value list is ignored and not added to the value list. Overriding implementations may modify this behavior by redefining the addNull(java.util.List) method.
      Specified by:
      addAll in interface MultivaluedMap<K,V>
      Parameters:
      key - the key.
      valueList - the list of values to be added.
      Throws:
      NullPointerException - if the supplied value list is null.
    • getFirst Link icon

      public final V getFirst(K key)
      Description copied from interface: MultivaluedMap
      A shortcut to get the first value of the supplied key.
      Specified by:
      getFirst in interface MultivaluedMap<K,V>
      Parameters:
      key - the key
      Returns:
      the first value for the specified key or null if the key is not in the map.
    • addFirst Link icon

      public final void addFirst(K key, V value)

      Add a value to the first position in the current list of values for the supplied key.

      NOTE: This implementation ignores null values; A supplied value of null is ignored and not added to the purged value list. Overriding implementations may modify this behavior by redefining the addFirstNull(java.util.List) method.
      Specified by:
      addFirst in interface MultivaluedMap<K,V>
      Parameters:
      key - the key
      value - the value to be added.
    • getValues Link icon

      protected final List<V> getValues(K key)

      Return a non-null list of values for a given key. The returned list may be empty.

      If there is no entry for the key in the map, a new empty List instance is created, registered within the map to hold the values of the key and returned from the method.
      Parameters:
      key - the key.
      Returns:
      value list registered with the key. The method is guaranteed to never return null.
    • toString Link icon

      public String toString()
      Overrides:
      toString in class Object
    • hashCode Link icon

      public int hashCode()

      This implementation delegates the method call to to the the underlying [key, multi-value] store.

      Specified by:
      hashCode in interface Map<K,V>
      Overrides:
      hashCode in class Object
      Returns:
      a hash code value for the underlying [key, multi-value] store.
    • equals Link icon

      public boolean equals(Object o)

      This implementation delegates the method call to to the the underlying [key, multi-value] store.

      Specified by:
      equals in interface Map<K,V>
      Overrides:
      equals in class Object
      Returns:
      true if the specified object is equal to the underlying [key, multi-value] store, false otherwise.
    • values Link icon

      public Collection<List<V>> values()
      Specified by:
      values in interface Map<K,V>
    • size Link icon

      public int size()
      Specified by:
      size in interface Map<K,V>
    • remove Link icon

      public List<V> remove(Object key)
      Specified by:
      remove in interface Map<K,V>
    • putAll Link icon

      public void putAll(Map<? extends K,? extends List<V>> m)
      Specified by:
      putAll in interface Map<K,V>
    • put Link icon

      public List<V> put(K key, List<V> value)
      Specified by:
      put in interface Map<K,V>
    • keySet Link icon

      public Set<K> keySet()
      Specified by:
      keySet in interface Map<K,V>
    • isEmpty Link icon

      public boolean isEmpty()
      Specified by:
      isEmpty in interface Map<K,V>
    • get Link icon

      public List<V> get(Object key)
      Specified by:
      get in interface Map<K,V>
    • entrySet Link icon

      public Set<Map.Entry<K,List<V>>> entrySet()
      Specified by:
      entrySet in interface Map<K,V>
    • containsValue Link icon

      public boolean containsValue(Object value)
      Specified by:
      containsValue in interface Map<K,V>
    • containsKey Link icon

      public boolean containsKey(Object key)
      Specified by:
      containsKey in interface Map<K,V>
    • clear Link icon

      public void clear()
      Specified by:
      clear in interface Map<K,V>
    • equalsIgnoreValueOrder Link icon

      public boolean equalsIgnoreValueOrder(MultivaluedMap<K,V> omap)
      Description copied from interface: MultivaluedMap
      Compare the specified map with this map for equality modulo the order of values for each key. Specifically, the values associated with each key are compared as if they were ordered lists.
      Specified by:
      equalsIgnoreValueOrder in interface MultivaluedMap<K,V>
      Parameters:
      omap - map to be compared to this one.
      Returns:
      true if the maps are equal modulo value ordering.