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

Nested Classes

Modifier and Type	Class and Description
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/interfaces inherited from interface java.util.Map

java.util.Map.Entry

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	AbstractMap() Sole constructor.

Method Summary

Methods

Modifier and Type	Method and Description
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()

Specified by:

keySet in interface java.util.Map

Overrides:

keySet in class java.util.AbstractMap