Package org.apache.commons.collections.keyvalue

Class UnmodifiableMapEntry

  • All Implemented Interfaces:
    java.util.Map.Entry, KeyValue, Unmodifiable
    public final class UnmodifiableMapEntry
extends AbstractMapEntry
implements Unmodifiable
    A Map.Entry that throws UnsupportedOperationException when setValue is called.
    Since:
    Commons Collections 3.0

    • Constructor Summary

      Constructors 
      Constructor Description
      UnmodifiableMapEntry​(java.lang.Object key, java.lang.Object value)
      Constructs a new entry with the specified key and given value.
      UnmodifiableMapEntry​(java.util.Map.Entry entry)
      Constructs a new entry from the specified Map.Entry.
      UnmodifiableMapEntry​(KeyValue pair)
      Constructs a new entry from the specified KeyValue.

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      java.lang.Object setValue​(java.lang.Object value)
      Throws UnsupportedOperationException.

      • Methods inherited from class java.lang.Object

        getClass, notify, notifyAll, wait, wait, wait

      • Methods inherited from interface java.util.Map.Entry

        getKey, getValue

    • Constructor Detail

      • UnmodifiableMapEntry

        public UnmodifiableMapEntry​(java.lang.Object key,
                            java.lang.Object value)
        Constructs a new entry with the specified key and given value.
        Parameters:
        key - the key for the entry, may be null
        value - the value for the entry, may be null

      • UnmodifiableMapEntry

        public UnmodifiableMapEntry​(KeyValue pair)
        Constructs a new entry from the specified KeyValue.
        Parameters:
        pair - the pair to copy, must not be null
        Throws:
        java.lang.NullPointerException - if the entry is null

      • UnmodifiableMapEntry

        public UnmodifiableMapEntry​(java.util.Map.Entry entry)
        Constructs a new entry from the specified Map.Entry.
        Parameters:
        entry - the entry to copy, must not be null
        Throws:
        java.lang.NullPointerException - if the entry is null

    • Method Detail

      • setValue

        public java.lang.Object setValue​(java.lang.Object value)
        Throws UnsupportedOperationException.
        Specified by:
        setValue in interface java.util.Map.Entry
        Overrides:
        setValue in class AbstractMapEntry
        Parameters:
        value - the new value
        Returns:
        the previous value
        Throws:
        java.lang.UnsupportedOperationException - always