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java.lang.Object | +--net.rim.blackberry.api.menuitem.ApplicationMenuItem
Extend an instance of this class and register your instance with the ApplicationMenuItemRepository. Register your instance along with an appropriate context ID, which will define when your item will appear, as defined by the contants in MenuItemRepository
| Constructor Summary | ||
|
ApplicationMenuItem(int order)
Default constructor |
|
|
ApplicationMenuItem(Object context,
int order)
override this method to take custom actions on the context parameter |
|
| Method Summary | ||
|
boolean |
equals(Object o)
Indicates whether some other object is "equal to" this one. |
|
int |
hashCode()
Returns a hash code value for the object. |
|
abstract Object |
run(Object context)
Override this method and implement your specific menu handling. |
|
abstract String |
toString()
Override this method and return the string to render in the menu. |
| Methods inherited from class java.lang.Object |
getClass, notify, notifyAll, wait, wait, wait |
| Constructor Detail |
public ApplicationMenuItem(Object context, int order)
context - a generic object containing context specific dataorder - display order of this item, lower numbers correspond to higher placement in the menu (relative, an entry of 0 wont necessarily result in the top most item)public ApplicationMenuItem(int order)
| Method Detail |
public abstract Object run(Object context)
public abstract String toString()
public boolean equals(Object o)
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).
public int hashCode()
Objectjava.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.)
java.lang.ObjectObject.equals(java.lang.Object),
Hashtable
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Copyright 1999-2002 Research In Motion Limited. 295 Phillip Street, Waterloo, Ontario, Canada, N2L 3W8. All Rights Reserved.
Copyright 1993-2000 Sun Microsystems, Inc. 901 San Antonio Road, Palo Alto, California, 94303, U.S.A. All Rights Reserved.
Java is a trademark or registered trademark of Sun Microsystems, Inc. in the US and other countries.