org.apache.flink.table.runtime.functions.table.lookup.fullcache

类 CacheLoader

java.lang.Object

org.apache.flink.table.runtime.functions.table.lookup.fullcache.CacheLoader

所有已实现的接口:

Serializable, AutoCloseable

直接已知子类:

InputFormatCacheLoader

public abstract class CacheLoader
extends Object
implements AutoCloseable, Serializable

Abstract task that loads data in Full cache from source provided by ScanTableSource.ScanRuntimeProvider.

另请参阅:

序列化表格

字段概要

字段

限定符和类型	字段和说明
protected ConcurrentHashMap<org.apache.flink.table.data.RowData,Collection<org.apache.flink.table.data.RowData>>	cache
protected boolean	isStopped
protected static long	TIMEOUT_AFTER_INTERRUPT_MS

构造器概要

构造器

构造器和说明
CacheLoader()

方法概要

限定符和类型	方法和说明
void	awaitFirstLoad()
void	close()
ConcurrentHashMap<org.apache.flink.table.data.RowData,Collection<org.apache.flink.table.data.RowData>>	getCache()
void	initializeMetrics(org.apache.flink.metrics.groups.CacheMetricGroup cacheMetricGroup)
void	open(org.apache.flink.configuration.Configuration parameters, ClassLoader userCodeClassLoader)
CompletableFuture<Void>	reloadAsync()
protected abstract boolean	updateCache()

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

TIMEOUT_AFTER_INTERRUPT_MS

protected static final long TIMEOUT_AFTER_INTERRUPT_MS

另请参阅:

常量字段值

cache

protected transient volatile ConcurrentHashMap<org.apache.flink.table.data.RowData,Collection<org.apache.flink.table.data.RowData>> cache

isStopped

protected volatile boolean isStopped

构造器详细资料

CacheLoader

public CacheLoader()

方法详细资料

updateCache

protected abstract boolean updateCache()
                                throws Exception

返回:

whether reload was successful and was not interrupted.

抛出:

Exception

open

public void open(org.apache.flink.configuration.Configuration parameters,
                 ClassLoader userCodeClassLoader)
          throws Exception

抛出:

Exception

initializeMetrics

public void initializeMetrics(org.apache.flink.metrics.groups.CacheMetricGroup cacheMetricGroup)

getCache

public ConcurrentHashMap<org.apache.flink.table.data.RowData,Collection<org.apache.flink.table.data.RowData>> getCache()

awaitFirstLoad

public void awaitFirstLoad()
                    throws InterruptedException

抛出:

InterruptedException

reloadAsync

public CompletableFuture<Void> reloadAsync()

close

public void close()
           throws Exception

指定者:

close 在接口中 AutoCloseable

抛出:

Exception