org.apache.ratis.util

类 DataQueue<E>

java.lang.Object

org.apache.ratis.util.DataQueue<E>

直接已知子类:

DataBlockingQueue

public class DataQueue<E>
extends Object

A queue for data elements such that the queue imposes limits on both number of elements and the data size in bytes. Null element is NOT supported. This class is NOT threadsafe.

字段概要

字段

限定符和类型	字段和说明
static org.slf4j.Logger	LOG

构造器概要

构造器

构造器和说明
DataQueue(Object name, SizeInBytes byteLimit, int elementLimit, ToIntFunction<E> getNumBytes)

方法概要

限定符和类型	方法和说明
void	clear()
int	getByteLimit()
int	getElementLimit()
int	getNumBytes()
int	getNumElements()
boolean	isEmpty()
boolean	offer(E element) Adds an element to this queue.
E	poll() Poll out the head element from this queue.
<RESULT,THROWABLE extends Throwable> List<RESULT>	pollList(long timeoutMs, CheckedFunctionWithTimeout<E,RESULT,THROWABLE> getResult, TriConsumer<E,TimeDuration,TimeoutException> timeoutHandler) Poll a list of the results within the given timeout.
int	size()

从类继承的方法 java.lang.Object

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

字段详细资料

LOG

public static final org.slf4j.Logger LOG

构造器详细资料

DataQueue

public DataQueue(Object name,
                 SizeInBytes byteLimit,
                 int elementLimit,
                 ToIntFunction<E> getNumBytes)

方法详细资料

getElementLimit

public int getElementLimit()

getByteLimit

public int getByteLimit()

getNumBytes

public int getNumBytes()

getNumElements

public int getNumElements()

isEmpty

public final boolean isEmpty()

clear

public void clear()

offer

public boolean offer(E element)

Adds an element to this queue.

返回:

true if the element is added successfully; otherwise, the element is not added, return false.

pollList

public <RESULT,THROWABLE extends Throwable> List<RESULT> pollList(long timeoutMs,
                                                                  CheckedFunctionWithTimeout<E,RESULT,THROWABLE> getResult,
                                                                  TriConsumer<E,TimeDuration,TimeoutException> timeoutHandler)
                                                           throws THROWABLE extends Throwable

Poll a list of the results within the given timeout.

抛出:

THROWABLE extends Throwable

poll

public E poll()

Poll out the head element from this queue.

size

public int size()