Package net.sf.basedb.util.units

Class UnitCache.CacheKey

java.lang.Object

net.sf.basedb.util.units.UnitCache.CacheKey

All Implemented Interfaces:

Comparable<UnitCache.CacheKey>

Enclosing class:

UnitCache

static class UnitCache.CacheKey
extends Object
implements Comparable<UnitCache.CacheKey>

Units are cached by (quantity,symbol) combination. This class is used as keys to the cache and overrides the equals and hashcode methods to makes sure that two keys with the same quantity and symbol are considered equal.

This class also implements the comparable interface so that it is possible to sort units in the order of their symbols. If two symbols are equal the one with the lowes quantity id is sorted first.

Field Summary

Fields

Modifier and Type	Field	Description
private final int	quantityId
private final String	symbol

Constructor Summary

Constructors

Constructor	Description
CacheKey(int quantityId, String symbol)

Method Summary

Modifier and Type	Method	Description
int	compareTo(UnitCache.CacheKey o)
boolean	equals(Object other)
int	hashCode()	From the Object class ---------------------

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

Field Details

quantityId

private final int quantityId

symbol

private final String symbol

Constructor Details

CacheKey

CacheKey(int quantityId,
 String symbol)

Method Details

hashCode

public int hashCode()

From the Object class ---------------------

Overrides:

hashCode in class Object

equals

public boolean equals(Object other)

Overrides:

equals in class Object

compareTo

public int compareTo(UnitCache.CacheKey o)

Specified by:

compareTo in interface Comparable<UnitCache.CacheKey>