org.apache.flink.table.connector.source.lookup.cache

类 DefaultLookupCache.Builder

java.lang.Object

org.apache.flink.table.connector.source.lookup.cache.DefaultLookupCache.Builder

封闭类:

DefaultLookupCache

@PublicEvolving
public static class DefaultLookupCache.Builder
extends Object

Builder for DefaultLookupCache.

构造器概要

构造器

构造器和说明
Builder()

方法概要

限定符和类型	方法和说明
DefaultLookupCache	build() Creates the cache.
DefaultLookupCache.Builder	cacheMissingKey(boolean cacheMissingKey) Specifies whether to cache empty value into the cache.
DefaultLookupCache.Builder	expireAfterAccess(java.time.Duration duration) Specifies the duration after an entry is last accessed that it should be automatically removed.
DefaultLookupCache.Builder	expireAfterWrite(java.time.Duration duration) Specifies the duration after an entry is created that it should be automatically removed.
DefaultLookupCache.Builder	maximumSize(long maximumSize) Specifies the maximum number of entries of the cache.

从类继承的方法 java.lang.Object

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

构造器详细资料

Builder

public Builder()

方法详细资料

expireAfterAccess

public DefaultLookupCache.Builder expireAfterAccess(java.time.Duration duration)

Specifies the duration after an entry is last accessed that it should be automatically removed.

expireAfterWrite

public DefaultLookupCache.Builder expireAfterWrite(java.time.Duration duration)

Specifies the duration after an entry is created that it should be automatically removed.

maximumSize

public DefaultLookupCache.Builder maximumSize(long maximumSize)

Specifies the maximum number of entries of the cache.

cacheMissingKey

public DefaultLookupCache.Builder cacheMissingKey(boolean cacheMissingKey)

Specifies whether to cache empty value into the cache.

Please note that "empty" means a collection without any rows in it instead of null. The cache will not accept any null key or value.

build

public DefaultLookupCache build()

Creates the cache.