public void setUnflushInterval(int unflushInterval) {
        this.unflushInterval = unflushInterval;
    }
Build topic configure entity

@param brokerId            the broker id
@param brokerIp            the broker ip
@param brokerPort          the broker port
@param topicName           the topic name
@param numPartitions       the number of partition
@param unflushThreshold    the un-flushed message count
@param unflushInterval     the un-flushed time delta
@param deleteWhen          the delete time
@param deletePolicy        the delete policy
@param acceptPublish       whether accept publish
@param acceptSubscribe     whether accept subscribe
@param numTopicStores      the number of topic store
@param attributes          the attribute information
@param createUser          the creator
@param createDate          the create date
@param modifyUser          the modifier
@param modifyDate          the modify date
inlong-tubemq/tubemq-server/src/main/java/org/apache/inlong/tubemq/server/master/bdbstore/bdbentitys/BdbTopicConfEntity.java