@UnstableApi
public interface DownloadCursor extends Closeable

Provides random read-write access to the result set returned by a database query.

Summary

Public methods
abstract void
abstract int

Returns the numbers of downloads in the cursor.
abstract Download

Returns the download at the current position.
abstract int

Returns the current position of the cursor in the download set.
default boolean

Returns whether the cursor is pointing to the position after the last download.
default boolean

Returns whether the cursor is pointing to the position before the first download.
abstract boolean

Returns whether the cursor is closed
default boolean

Returns whether the cursor is pointing to the first download.
default boolean

Returns whether the cursor is pointing to the last download.
default boolean

Move the cursor to the first download.
default boolean

Move the cursor to the last download.
default boolean

Move the cursor to the next download.
abstract boolean
moveToPosition(int position)

Move the cursor to an absolute position.
default boolean

Move the cursor to the previous download.

Public methods

close

abstract void close()

getCount

abstract int getCount()

Returns the numbers of downloads in the cursor.

getDownload

abstract Download getDownload()

Returns the download at the current position.

getPosition

abstract int getPosition()

Returns the current position of the cursor in the download set. The value is zero-based. When the download set is first returned the cursor will be at position -1, which is before the first download. After the last download is returned another call to next() will leave the cursor past the last entry, at a position of count().

Returns
int

the current cursor position.

isAfterLast

default boolean isAfterLast()

Returns whether the cursor is pointing to the position after the last download.

isBeforeFirst

default boolean isBeforeFirst()

Returns whether the cursor is pointing to the position before the first download.

isClosed

abstract boolean isClosed()

Returns whether the cursor is closed

isFirst

default boolean isFirst()

Returns whether the cursor is pointing to the first download.

isLast

default boolean isLast()

Returns whether the cursor is pointing to the last download.

moveToFirst

default boolean moveToFirst()

Move the cursor to the first download.

This method will return false if the cursor is empty.

Returns
boolean

whether the move succeeded.

moveToLast

default boolean moveToLast()

Move the cursor to the last download.

This method will return false if the cursor is empty.

Returns
boolean

whether the move succeeded.

moveToNext

default boolean moveToNext()

Move the cursor to the next download.

This method will return false if the cursor is already past the last entry in the result set.

Returns
boolean

whether the move succeeded.

moveToPosition

abstract boolean moveToPosition(int position)

Move the cursor to an absolute position. The valid range of values is -1 <= position <= count.

This method will return true if the request destination was reachable, otherwise, it returns false.

Parameters
int position

the zero-based position to move to.
Returns
boolean

whether the requested move fully succeeded.

moveToPrevious

default boolean moveToPrevious()

Move the cursor to the previous download.

This method will return false if the cursor is already before the first entry in the result set.

Returns
boolean

whether the move succeeded.