```定义一个需要序列化的对象``` public class WishRequest implements Serializable { private Integer age; private Long money; pri... //消费类public class ConsumerApplication { public static void main(String[] args) throws IOException, InterruptedException { ClassPathXmlApplicationContext ctx = new Cl...
extends Serializable, TypeInfoConverterFactory { /** * Run in client side for source initialize; */ void configure(ExecutionEnviron execution, BitSailConfiguration readerConfiguration) th... throws Exception;}```#### getParallelismAdvice 方法用于指定下游 reader 的并行数目。一般有以下的方式:可以选择`selfConf.get(ClickhouseReaderOptions.`*`READER_PARALLELISM_NUM`*`)`来指定并行度。...
extends Serializable, TypeInfoConverterFactory { /** * Run in client side for source initialize; */ void configure(ExecutionEnviron execution, BitSailConfiguration readerConfiguration) throws IOException; /** * Indicate the Source type. */ Boundedness getSourceBound...
extends Serializable, AutoCloseable { void start(); void pollNext(SourcePipeline pipeline) throws Exception; void addSplits(List splits); /*** Check source reader has more elements or not.*/boolean hasMoreElements(); /*** There will no more split will send to this source reader.* Source reader could be exited after process all assigned split.*/default void notifyNoMoreSplit...
extends Serializable, AutoCloseable {` `void start();` `void addReader(int subtaskId);` `void addSplitsBack(List splits, int subtaskId);` `void handleSplitRequest(int subtaskId, @Nullable String requesterHostname);` `default void handleSourceEvent(int subtaskId, SourceEvent sourceEvent) {` `}` `StateT snapshotState() throws Exception;` `default void notifyCheckpoint...
extends Serializable { /*** @return The name of writer operation.*/String getWriterName(); /*** Configure writer with user defined options.** @param commonConfiguration Common options.* @param writerConfiguration Options for writer.*/void configure(BitSailConfiguration commonConfiguration, BitSailConfiguration writerConfiguration) throws Exception; /*** Create a writer f...
表示可以接收void类型的方法 @Advice.Return(typing = Assigner.Typing.DYNAMIC) Object originResult, // 目标方法自己抛出的运行时异常,可以在方法中进行捕获,看具体的需... anyAnnotationNameOnMethod.isEmpty(); if (nameStartWithInvalid && annotationNameOnMethodInvalid) { throw new IllegalArgumentException("anyClassNameStartWith...
extends Serializable, AutoCloseable { void start(); void addReader(int subtaskId); void addSplitsBack(List splits, int subtaskId); void handleSplitRequest(int subtaskId, @Nullable String requesterHostname); default void handleSourceEvent(int subtaskId, SourceEvent sourceEvent) { } StateT snapshotState() throws Exception; default void notifyCheckpointComplete(long checkpoin...
catch (SQLException e) { log.error("init mysql database source failed due to", e); throw new BackendSQLException(String.format("init mysql database source failed due to", e.getMessage())); } } // 获取数据库连接 Connection connection = tenantToDataSourceMap.get(te...
Context 中的租户信息,需要在操作某个租户数据之前设置,并在操作之后清除掉。# 细节设计与疑难问题## 细节设计### 存储模型JanusGraph 要求 column-family 类型存储(如 Cassandra, HBase),也就是说,数... throw new BackendSQLException(String.format("init mysql database source failed due to", e.getMessage())); } } // 获取数据库连接 Connection connect...
Cause by: java.lang.ClassNotFoundException: org.springframework.data.redis.connection.lettuce.LettuceClientConfiguration at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521) ...25 ... 先来介绍下在实际开发过程中,如何去分析依赖关系。## 依赖可视化稍具规模的一个 Java Web 工程,依赖的包就多达上百个,所以,你的服务依赖关系应该是呈树状的。通过 Maven 内置命令,或者第三方插件均可以帮助你对...
在ByteHouse里,为了保证数据质量,我们提供了事务语义的支持。每条SQL 语句都会转换为一个事务去执行,事务提供了原子性、一致性、隔离性和持久性 (ACID) 属性的保证,旨在在并发读写,软件异常,硬件异常等各种情况下仍... 而更严格的隔离级别例如Serializable Snapshot Isolation(SSI),读可能会被写入block。- Durability(持久性)ByteHouse元数据持久到ByteKV或者FoundationDB中,2个分布式key-value存储提供了持久化和高可用的保...
本文汇总了云数据库 MySQL 版的数据库保留关键词。 说明 在高权限账号名称中可使用 root 和 admin。 参数字段 关键字描述 UserName或DatabaseName accessible, account, action, actual, add, adddate, admin, ... serializable, server, session, session_user, set, share, show, shutdown, signal, signed, simple, slave, slow, smallint, snapshot, socket, some, soname, sounds, source, spatial, specific, sql, sql_a...