edu.emory.mathcs.backport.java.util
Class AbstractMap

java.lang.Object
  java.util.AbstractMap
      edu.emory.mathcs.backport.java.util.AbstractMap

All Implemented Interfaces:

java.util.Map

Direct Known Subclasses:

ConcurrentHashMap, ConcurrentSkipListMap, TreeMap

public abstract class AbstractMap

extends java.util.AbstractMap

Convenience base class for map implementations that provides helper classes representing simple map entries, both mutable and immutable.

Author:

Doug Lea, Dawid Kurzyniec

Nested Class Summary

static class	AbstractMap.SimpleEntry An Entry maintaining a key and a value.
static class	AbstractMap.SimpleImmutableEntry An Entry maintaining an immutable key and value, This class does not support method setValue.

Nested classes inherited from class java.util.Map

java.util.Map.Entry

Constructor Summary

protected

AbstractMap() Sole constructor.

Method Summary

java.util.Set

keySet()

Methods inherited from class java.util.AbstractMap

clear, clone, containsKey, containsValue, entrySet, equals, get, hashCode, isEmpty, put, putAll, remove, size, toString, values

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

AbstractMap

protected AbstractMap()

Sole constructor. (For invocation by subclass constructors, typically implicit.)

Method Detail

keySet

public java.util.Set keySet()