Package org.simpleframework.xml.util

Class Dictionary<T extends Entry>

  • All Implemented Interfaces:
    java.lang.Iterable<T>, java.util.Collection<T>, java.util.Set<T>
    public class Dictionary<T extends Entry>
extends java.util.AbstractSet<T>
    The Dictionary object represents a mapped set of entry objects that can be serialized and deserialized. This is used when there is a need to load a list of objects that can be mapped using a name attribute. Using this object avoids the need to implement a commonly required pattern of building a map of XML element objects. 
    
    <dictionary>
       <entry name="example">
          <element>example text</element>
       </entry>
       <entry name="example">
          <element>example text</element>
       </entry>       
    </dictionary>
    This can contain implementations of the Entry object which contains a required "name" attribute. Implementations of the entry object can add further XML attributes an elements. This must be annotated with the ElementList annotation in order to be serialized and deserialized as an object field.
    Author:
    Niall Gallagher
    See Also:
    Entry

    • Field Summary

      Fields 
      Modifier and Type Field Description
      protected org.simpleframework.xml.util.Dictionary.Table<T> map
      Used to map the entries to their configured names.

    • Constructor Summary

      Constructors 
      Constructor Description
      Dictionary()
      Constructor for the Dictionary object.

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      boolean add​(T item)
      This method is used to add the provided entry to this set.
      T get​(java.lang.String name)
      This is used to acquire an Entry from the set by its name.
      java.util.Iterator<T> iterator()
      Returns an iterator of Entry objects which can be used to remove items from this set.
      T remove​(java.lang.String name)
      This is used to remove an Entry from the set by its name.
      int size()
      This returns the number of Entry objects within the dictionary.

      • Methods inherited from class java.util.AbstractSet

        equals, hashCode, removeAll

      • Methods inherited from class java.util.AbstractCollection

        addAll, clear, contains, containsAll, isEmpty, remove, retainAll, toArray, toArray, 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

        addAll, clear, contains, containsAll, isEmpty, remove, retainAll, spliterator, toArray, toArray

    • Field Detail

      • map

        protected final org.simpleframework.xml.util.Dictionary.Table<T extends Entry> map
        Used to map the entries to their configured names.

    • Constructor Detail

      • Dictionary

        public Dictionary()
        Constructor for the Dictionary object. This is used to create a set that contains entry objects mapped to an XML attribute name value. Entry objects added to this dictionary can be retrieved using its name value.

    • Method Detail

      • add

        public boolean add​(T item)
        This method is used to add the provided entry to this set. If an entry of the same name already existed within the set then it is replaced with the specified Entry object.
        Specified by:
        add in interface java.util.Collection<T extends Entry>
        Specified by:
        add in interface java.util.Set<T extends Entry>
        Overrides:
        add in class java.util.AbstractCollection<T extends Entry>
        Parameters:
        item - this is the entry object that is to be inserted

      • size

        public int size()
        This returns the number of Entry objects within the dictionary. This will use the internal map to acquire the number of entry objects that have been inserted to the map.
        Specified by:
        size in interface java.util.Collection<T extends Entry>
        Specified by:
        size in interface java.util.Set<T extends Entry>
        Specified by:
        size in class java.util.AbstractCollection<T extends Entry>
        Returns:
        this returns the number of entry objects in the set

      • iterator

        public java.util.Iterator<T> iterator()
        Returns an iterator of Entry objects which can be used to remove items from this set. This will use the internal map object and return the iterator for the map values.
        Specified by:
        iterator in interface java.util.Collection<T extends Entry>
        Specified by:
        iterator in interface java.lang.Iterable<T extends Entry>
        Specified by:
        iterator in interface java.util.Set<T extends Entry>
        Specified by:
        iterator in class java.util.AbstractCollection<T extends Entry>
        Returns:
        this returns an iterator for the entry objects

      • get

        public T get​(java.lang.String name)
        This is used to acquire an Entry from the set by its name. This uses the internal map to look for the entry, if the entry exists it is returned, if not this returns null.
        Parameters:
        name - this is the name of the entry object to retrieve
        Returns:
        this returns the entry mapped to the specified name

      • remove

        public T remove​(java.lang.String name)
        This is used to remove an Entry from the set by its name. This uses the internal map to look for the entry, if the entry exists it is returned and removed from the map.
        Parameters:
        name - this is the name of the entry object to remove
        Returns:
        this returns the entry mapped to the specified name