com.google.android.exoplayer2.util

Class TimedValueQueue<V>

java.lang.Object

com.google.android.exoplayer2.util.TimedValueQueue<V>

public final class TimedValueQueue<V>
extends java.lang.Object

A utility class to keep a queue of values with timestamps. This class is thread safe.

Constructor Summary

Constructors

Constructor and Description
TimedValueQueue()
TimedValueQueue(int initialBufferSize) Creates a TimedValueBuffer with the given initial buffer size.

Method Summary

Modifier and Type	Method and Description
void	add(long timestamp, V value) Associates the specified value with the specified timestamp.
void	clear() Removes all of the values.
V	poll(long timestamp) Returns the value with the closest timestamp to the given timestamp.
V	pollFloor(long timestamp) Returns the value with the greatest timestamp which is less than or equal to the given timestamp.
int	size() Returns number of the values buffered.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

TimedValueQueue

public TimedValueQueue()

TimedValueQueue

public TimedValueQueue(int initialBufferSize)

Creates a TimedValueBuffer with the given initial buffer size.

Method Detail

add

public void add(long timestamp,
                V value)

Associates the specified value with the specified timestamp. All new values should have a greater timestamp than the previously added values. Otherwise all values are removed before adding the new one.

clear

public void clear()

Removes all of the values.

size

public int size()

Returns number of the values buffered.

pollFloor

@Nullable
public V pollFloor(long timestamp)

Returns the value with the greatest timestamp which is less than or equal to the given timestamp. Removes all older values and the returned one from the buffer.

Parameters:

timestamp - The timestamp value.

Returns:

The value with the greatest timestamp which is less than or equal to the given timestamp or null if there is no such value.

See Also:

poll(long)

poll

@Nullable
public V poll(long timestamp)

Returns the value with the closest timestamp to the given timestamp. Removes all older values including the returned one from the buffer.

Parameters:

timestamp - The timestamp value.

Returns:

The value with the closest timestamp or null if the buffer is empty.

See Also:

pollFloor(long)