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java.lang.Object | +--net.rim.device.api.smartcard.SmartCardID
A class to represent a specific smart card within a family of smart cards.
SmartCard
Constructor Summary | ||
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SmartCardID(long id,
String label,
SmartCard smartCard)
Constructs a SmartCardID object. |
Method Summary | ||
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boolean |
equals(Object obj)
Indicates whether some other object is "equal to" this one. |
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long |
getID()
Returns the unique identifier. |
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String |
getLabel()
Returns a human readable String that identifies this specific smart card to the user. |
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SmartCard |
getSmartCard()
Returns the family of smart cards that this specific card is a member of. |
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int |
hashCode()
Returns a hash code value for the object. |
Methods inherited from class java.lang.Object |
getClass, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
public SmartCardID(long id, String label, SmartCard smartCard)
SmartCardID
object.
id
- A unique number identifying a particular smart card. For example a personel number.label
- A human readable String that identifies this specific smart card to the user.
For example, the type of card and name of the card holder, "Visa: Michael Adams".smartCard
- The class of smart cards that this specific card is a instance of.Method Detail |
public boolean equals(Object obj)
Object
The equals
method implements an equivalence relation:
x
,
x.equals(x)
should return true
.
x
and
y
, x.equals(y)
should return
true
if and only if y.equals(x)
returns
true
.
x
,
y
, and z
, if x.equals(y)
returns true
and y.equals(z)
returns
true
, then x.equals(z)
should return
true
.
x
and y
, multiple invocations of x.equals(y)
consistently return true
or consistently return
false
, provided no information used in
equals
comparisons on the object is modified.
x
,
x.equals(null)
should return false
.
The equals method for class Object
implements
the most discriminating possible equivalence relation on objects;
that is, for any reference values x
and y
,
this method returns true
if and only if x
and
y
refer to the same object (x==y
has the
value true
).
Object
obj
- the reference object with which to compare.true
if this object is the same as the obj
argument; false
otherwise.Boolean.hashCode()
,
Hashtable
public long getID()
public String getLabel()
public SmartCard getSmartCard()
SmartCard
.public int hashCode()
Object
java.util.Hashtable
.
The general contract of hashCode
is:
hashCode
method on each of
the two objects must produce the same integer result.
Object.equals(java.lang.Object)
method, then calling the hashCode method on each of the
two objects must produce distinct integer results. However, the
programmer should be aware that producing distinct integer results
for unequal objects may improve the performance of hashtables.
As much as is reasonably practical, the hashCode method defined by class Object does return distinct integers for distinct objects. (This is typically implemented by converting the internal address of the object into an integer, but this implementation technique is not required by the JavaTM programming language.)
Object
Object.equals(java.lang.Object)
,
Hashtable
|
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Copyright 1999-2008 Research In Motion Limited. 295 Phillip Street, Waterloo, Ontario, Canada, N2L 3W8. All Rights Reserved.
Copyright 1993-2003 Sun Microsystems, Inc. 901 San Antonio Road, Palo Alto, California, 94303, U.S.A.
Copyright 2002-2003 Nokia Corporation All Rights Reserved.
Java is a trademark or registered trademark of Sun Microsystems, Inc. in the US and other countries.