Build.Partition
public
static
class
Build.Partition
extends Object
java.lang.Object | |
↳ | android.os.Build.Partition |
Build information for a particular device partition.
Summary
Constants | |
---|---|
String |
PARTITION_NAME_SYSTEM
The name identifying the system partition. |
Public methods | |
---|---|
boolean
|
equals(Object o)
Indicates whether some other object is "equal to" this one. |
long
|
getBuildTimeMillis()
The time (ms since epoch), at which this partition was built, see |
String
|
getFingerprint()
The build fingerprint of this partition, see |
String
|
getName()
The name of this partition, e.g. "system", or "vendor" |
int
|
hashCode()
Returns a hash code value for the object. |
Inherited methods | |
---|---|
Constants
PARTITION_NAME_SYSTEM
public static final String PARTITION_NAME_SYSTEM
The name identifying the system partition.
Constant Value: "system"
Public methods
equals
public boolean equals (Object o)
Indicates whether some other object is "equal to" this one.
The equals
method implements an equivalence relation
on non-null object references:
- It is reflexive: for any non-null reference value
x
,x.equals(x)
should returntrue
. - It is symmetric: for any non-null reference values
x
andy
,x.equals(y)
should returntrue
if and only ify.equals(x)
returnstrue
. - It is transitive: for any non-null reference values
x
,y
, andz
, ifx.equals(y)
returnstrue
andy.equals(z)
returnstrue
, thenx.equals(z)
should returntrue
. - It is consistent: for any non-null reference values
x
andy
, multiple invocations ofx.equals(y)
consistently returntrue
or consistently returnfalse
, provided no information used inequals
comparisons on the objects is modified. - For any non-null reference value
x
,x.equals(null)
should returnfalse
.
An equivalence relation partitions the elements it operates on into equivalence classes; all the members of an equivalence class are equal to each other. Members of an equivalence class are substitutable for each other, at least for some purposes.
Parameters | |
---|---|
o |
Object : This value may be null . |
Returns | |
---|---|
boolean |
true if this object is the same as the obj
argument; false otherwise. |
getBuildTimeMillis
public long getBuildTimeMillis ()
The time (ms since epoch), at which this partition was built, see Build#TIME
.
Returns | |
---|---|
long |
getFingerprint
public String getFingerprint ()
The build fingerprint of this partition, see Build#FINGERPRINT
.
Returns | |
---|---|
String |
This value cannot be null . |
getName
public String getName ()
The name of this partition, e.g. "system", or "vendor"
Returns | |
---|---|
String |
This value cannot be null . |
hashCode
public int hashCode ()
Returns a hash code value for the object. This method is
supported for the benefit of hash tables such as those provided by
HashMap
.
The general contract of hashCode
is:
- Whenever it is invoked on the same object more than once during
an execution of a Java application, the
hashCode
method must consistently return the same integer, provided no information used inequals
comparisons on the object is modified. This integer need not remain consistent from one execution of an application to another execution of the same application. - If two objects are equal according to the
equals
method, then calling thehashCode
method on each of the two objects must produce the same integer result. - It is not required that if two objects are unequal
according to the
equals
method, then calling thehashCode
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 hash tables.
Returns | |
---|---|
int |
a hash code value for this object. |