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

Class LookupCacheManager.RefCountedCache

java.lang.Object

org.apache.flink.table.runtime.functions.table.lookup.LookupCacheManager.RefCountedCache

All Implemented Interfaces:

org.apache.flink.util.RefCounted

Enclosing class:

LookupCacheManager

@NotThreadSafe
@VisibleForTesting
public static class LookupCacheManager.RefCountedCache
extends Object
implements org.apache.flink.util.RefCounted

A wrapper class of LookupCache which also tracks the reference count of it.

This class is exposed as public for testing purpose and not thread safe. Concurrent accesses should be guarded by synchronized methods provided by LookupCacheManager.

Constructor Summary

Constructors

Constructor	Description
RefCountedCache(org.apache.flink.table.connector.source.lookup.cache.LookupCache cache)

Method Summary

Modifier and Type	Method	Description
org.apache.flink.table.connector.source.lookup.cache.LookupCache	getCache()
boolean	release()
void	retain()

Methods inherited from class java.lang.Object

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

Constructor Details

RefCountedCache

public RefCountedCache(org.apache.flink.table.connector.source.lookup.cache.LookupCache cache)

Method Details

retain

public void retain()

Specified by:

retain in interface org.apache.flink.util.RefCounted

release

public boolean release()

Specified by:

release in interface org.apache.flink.util.RefCounted

getCache

public org.apache.flink.table.connector.source.lookup.cache.LookupCache getCache()