org.apache.pulsar.metadata.api.MetadataCacheConfig Maven / Gradle / Ivy
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* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.pulsar.metadata.api;
import java.util.concurrent.TimeUnit;
import lombok.Builder;
import lombok.Getter;
import lombok.ToString;
/**
* The configuration builder for a {@link MetadataCache} config.
*/
@Builder
@Getter
@ToString
public class MetadataCacheConfig {
private static final long DEFAULT_CACHE_REFRESH_TIME_MILLIS = TimeUnit.MINUTES.toMillis(5);
/**
* Specifies that active entries are eligible for automatic refresh once a fixed duration has
* elapsed after the entry's creation, or the most recent replacement of its value.
* A negative or zero value disables automatic refresh.
*/
@Builder.Default
private final long refreshAfterWriteMillis = DEFAULT_CACHE_REFRESH_TIME_MILLIS;
/**
* Specifies that each entry should be automatically removed from the cache once a fixed duration
* has elapsed after the entry's creation, or the most recent replacement of its value.
* A negative or zero value disables automatic expiration.
*/
@Builder.Default
private final long expireAfterWriteMillis = 2 * DEFAULT_CACHE_REFRESH_TIME_MILLIS;
}