com.sleepycat.bdb.collection
Class MapEntry

java.lang.Object
  |
  +--com.sleepycat.bdb.collection.MapEntry

All Implemented Interfaces:

Map.Entry

public class MapEntry

extends Object

implements Map.Entry

A simple Map.Entry implementation.

Warning: Use of this interface violates the Java Collections interface contract since these state that Map.Entry objects should only be obtained from Map.entrySet() sets, while this class allows constructing them directly. However, it is useful for performing operations on an entry set such as add(), contains(), etc. For restrictions see getValue() and setValue(java.lang.Object).

Constructor Summary

MapEntry(Object key, Object value)
Creates a map entry with a given key and value.

Method Summary

boolean	equals(Object other) Compares this entry to a given entry as specified by Map.Entry.equals(java.lang.Object).
Object	getKey() Returns the key of this entry.
Object	getValue() Returns the value of this entry.
int	hashCode() Computes a hash code as specified by Map.Entry.hashCode().
Object	setValue(Object newValue) Changes the value of this entry.
String	toString() Converts the entry to a string representation for debugging.

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

MapEntry

public MapEntry(Object key,
                Object value)

Creates a map entry with a given key and value.

Parameters:

key - is the key to use.

value - is the value to use.

Method Detail

hashCode

public int hashCode()

Computes a hash code as specified by Map.Entry.hashCode().

Specified by:

hashCode in interface Map.Entry

Overrides:

hashCode in class Object

Returns:

the computed hash code.

equals

public boolean equals(Object other)

Compares this entry to a given entry as specified by Map.Entry.equals(java.lang.Object).

Specified by:

equals in interface Map.Entry

Overrides:

equals in class Object

Returns:

the computed hash code.

getKey

public final Object getKey()

Returns the key of this entry.

Specified by:

getKey in interface Map.Entry

Returns:

the key of this entry.

getValue

public final Object getValue()

Returns the value of this entry. Note that this will be the value passed to the constructor or the last value passed to setValue(java.lang.Object). It will not reflect changes made to a Map.

Specified by:

getValue in interface Map.Entry

Returns:

the value of this entry.

setValue

public Object setValue(Object newValue)

Changes the value of this entry. Note that this will change the value in this entry object but will not change the value in a Map.

Specified by:

setValue in interface Map.Entry

Returns:

the value of this entry.

toString

public String toString()

Converts the entry to a string representation for debugging.

Overrides:

toString in class Object

Returns:

the string representation.