Class Overview
A sub-directory of a contact that contains all of its
ContactsContract.RawContacts
as well as
ContactsContract.Data
rows. To access this directory append
CONTENT_DIRECTORY
to the contact URI.
Entity has three ID fields: CONTACT_ID
for the contact,
RAW_CONTACT_ID
for the raw contact and DATA_ID
for
the data rows. Entity always contains at least one row per
constituent raw contact, even if there are no actual data rows. In
this case the DATA_ID
field will be null.
Entity reads all data for the entire contact in one transaction, to
guarantee consistency. There is significant data duplication
in the Entity (each row repeats all Contact columns and all RawContact
columns), so the benefits of transactional consistency should be weighed
against the cost of transferring large amounts of denormalized data
from the Provider.
To reduce the amount of data duplication the contacts provider and directory
providers implementing this protocol are allowed to provide common Contacts
and RawContacts fields in the first row returned for each raw contact only and
leave them as null in subsequent rows.
Summary
[Expand]
Inherited Methods |
From class
java.lang.Object
Object
|
clone()
Creates and returns a copy of this Object .
|
boolean
|
equals(Object o)
Compares this instance with the specified object and indicates if they
are equal.
|
void
|
finalize()
Invoked when the garbage collector has detected that this instance is no longer reachable.
|
final
Class<?>
|
getClass()
Returns the unique instance of Class that represents this
object's class.
|
int
|
hashCode()
Returns an integer hash code for this object.
|
final
void
|
notify()
Causes a thread which is waiting on this object's monitor (by means of
calling one of the wait() methods) to be woken up.
|
final
void
|
notifyAll()
Causes all threads which are waiting on this object's monitor (by means
of calling one of the wait() methods) to be woken up.
|
String
|
toString()
Returns a string containing a concise, human-readable description of this
object.
|
final
void
|
wait()
Causes the calling thread to wait until another thread calls the notify() or notifyAll() method of this object.
|
final
void
|
wait(long millis, int nanos)
Causes the calling thread to wait until another thread calls the notify() or notifyAll() method of this object or until the
specified timeout expires.
|
final
void
|
wait(long millis)
Causes the calling thread to wait until another thread calls the notify() or notifyAll() method of this object or until the
specified timeout expires.
|
|
Constants
public
static
final
String
CONTENT_DIRECTORY
The directory twig for this sub-table
Constant Value:
"entities"
public
static
final
String
DATA_ID
The ID of the data row. The value will be null if this raw contact has no
data rows.
Type: INTEGER
Constant Value:
"data_id"
public
static
final
String
RAW_CONTACT_ID
The ID of the raw contact row.
Type: INTEGER
Constant Value:
"raw_contact_id"