ContextInsight
public
abstract
class
ContextInsight
extends Object
| java.lang.Object | |
| ↳ | android.service.personalcontext.insight.ContextInsight |
A ContextInsight is the result of an understander examining one or more
ERROR(ContextHint/android.service.personalcontext.hint.ContextHint ContextHint)s. It represents something that can be shown to a user, and potentially
acted upon. Insights are forwarded on to renderers, which are responsible for showing them to
the user.
This is an abstract base class for all insights. Only built-in insight classes are supported. Users of this class can use instanceof to determine the type of the insight.
See also:
ERROR(for a description of the personal context service and the role that insights play in it./android.service.personalcontext.PersonalContextManager for a description of the personal context service and the role that insights play in it.)ERROR(for a general-purpose insight container./android.service.personalcontext.insight.BundleInsight for a general-purpose insight container.)
Summary
Public methods | |
|---|---|
boolean
|
equals(Object o)
Indicates whether some other object is "equal to" this one. |
final
UUID
|
getInsightId()
Returns the unique identifier for this insight. |
boolean
|
hasAttribution()
Indicates whether the insight has attribution details that can be shown. |
int
|
hashCode()
Returns a hash code value for the object. |
String
|
toString()
Returns a string representation of the object. |
Inherited methods | |
|---|---|
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
xandy,x.equals(y)should returntrueif and only ify.equals(x)returnstrue. - It is transitive: for any non-null reference values
x,y, andz, ifx.equals(y)returnstrueandy.equals(z)returnstrue, thenx.equals(z)should returntrue. - It is consistent: for any non-null reference values
xandy, multiple invocations ofx.equals(y)consistently returntrueor consistently returnfalse, provided no information used inequalscomparisons 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: the reference object with which to compare. |
| Returns | |
|---|---|
boolean |
true if this object is the same as the obj
argument; false otherwise. |
getInsightId
public final UUID getInsightId ()
Returns the unique identifier for this insight.
| Returns | |
|---|---|
UUID |
|
hasAttribution
public boolean hasAttribution ()
Indicates whether the insight has attribution details that can be shown. This can be
checked before showing a UI to call
ERROR(/android.service.personalcontext.PersonalContextManager#showAttribution) to see if
attribution is available.
| Returns | |
|---|---|
boolean |
|
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
hashCodemethod must consistently return the same integer, provided no information used inequalscomparisons 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
equalsmethod, then calling thehashCodemethod 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
equalsmethod, then calling thehashCodemethod 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. |
toString
public String toString ()
Returns a string representation of the object.
| Returns | |
|---|---|
String |
a string representation of the object. |