edu.emory.mathcs.backport.java.util

Class AbstractMap

Known Direct 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.
Authors:
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.

Constructor Summary

AbstractMap()
Sole constructor.

Method Summary

Set
keySet()

Constructor Details

AbstractMap

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

Method Details

keySet

public Set keySet()