{"id":326777,"date":"2021-07-21T09:01:03","date_gmt":"2021-07-21T09:01:03","guid":{"rendered":"http:\/\/savepearlharbor.com\/?p=326777"},"modified":"-0001-11-30T00:00:00","modified_gmt":"-0001-11-29T21:00:00","slug":"","status":"publish","type":"post","link":"https:\/\/savepearlharbor.com\/?p=326777","title":{"rendered":"\u0420\u0435\u0430\u043a\u0442\u0438\u0432\u043d\u044b\u0439 SQL \u0441 jOOQ 3.15 \u0438 R2DBC"},"content":{"rendered":"\n
\n

\u041e\u0434\u043d\u0430 \u0438\u0437 \u0441\u0430\u043c\u044b\u0445 \u0431\u043e\u043b\u044c\u0448\u0438\u0445 \u043d\u043e\u0432\u044b\u0445 \u0444\u0443\u043d\u043a\u0446\u0438\u0439 \u043d\u0435\u0434\u0430\u0432\u043d\u043e \u0432\u044b\u043f\u0443\u0449\u0435\u043d\u043d\u043e\u0433\u043e jOOQ 3.15 — \u044d\u0442\u043e \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0430 \u0440\u0435\u0430\u043a\u0442\u0438\u0432\u043d\u044b\u0445 \u0437\u0430\u043f\u0440\u043e\u0441\u043e\u0432 \u0441 \u043f\u043e\u043c\u043e\u0449\u044c\u044e R2DBC<\/a>. \u042d\u0442\u043e \u0431\u044b\u043b \u043e\u0447\u0435\u043d\u044c \u043f\u043e\u043f\u0443\u043b\u044f\u0440\u043d\u044b\u0439 \u0437\u0430\u043f\u0440\u043e\u0441 \u0444\u0443\u043d\u043a\u0446\u0438\u043e\u043d\u0430\u043b\u044c\u043d\u043e\u0441\u0442\u0438, \u0438 \u043c\u044b \u043d\u0430\u043a\u043e\u043d\u0435\u0446 \u0435\u0433\u043e \u0432\u044b\u043f\u043e\u043b\u043d\u0438\u043b\u0438. <\/p>\n

\u0412\u044b \u043c\u043e\u0436\u0435\u0442\u0435 \u043f\u0440\u043e\u0434\u043e\u043b\u0436\u0430\u0442\u044c \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u044c jOOQ \u0442\u0430\u043a, \u043a\u0430\u043a \u0432\u044b \u043f\u0440\u0438\u0432\u044b\u043a\u043b\u0438, \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0438\u0432\u0430\u044f \u0442\u0438\u043f\u043e\u0431\u0435\u0437\u043e\u043f\u0430\u0441\u043d\u044b\u0439 SQL, \u0432\u0441\u0442\u0440\u043e\u0435\u043d\u043d\u044b\u0439 \u0432 Java, kotlin \u0438\u043b\u0438 scala, \u043d\u043e \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u0435 \u0432\u0430\u0448\u0438\u0445 \u0437\u0430\u043f\u0440\u043e\u0441\u043e\u0432 \u0431\u043e\u043b\u044c\u0448\u0435 \u043d\u0435 \u0431\u043b\u043e\u043a\u0438\u0440\u0443\u0435\u0442\u0441\u044f. \u0412\u043c\u0435\u0441\u0442\u043e \u044d\u0442\u043e\u0433\u043e \u0432\u0430\u0448 jOOQ ResultQuery <\/code>\u0438\u043b\u0438 Query <\/code>\u043c\u043e\u0436\u0435\u0442 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u044c\u0441\u044f \u043a\u0430\u043a Publisher<R> <\/code>\u0438\u043b\u0438 Publisher<Integer> <\/code>\u0432 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0438 reactive-streams (\u0440\u0435\u0430\u043a\u0442\u0438\u0432\u043d\u044b\u0445 \u043f\u043e\u0442\u043e\u043a\u043e\u0432) \u043f\u043e \u0432\u0430\u0448\u0435\u043c\u0443 \u0432\u044b\u0431\u043e\u0440\u0443.<\/p>\n

\u0412\u043c\u0435\u0441\u0442\u043e (\u0438\u043b\u0438 \u0432 \u0434\u043e\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u0435 \u043a) \u043d\u0430\u0441\u0442\u0440\u043e\u0439\u043a\u0438 \u0432\u0430\u0448\u0435\u0433\u043e jOOQ DSLContext <\/code>\u0441 \u043f\u043e\u043c\u043e\u0449\u044c\u044e JDBC java.sql.Connection <\/code>\u0438\u043b\u0438 javax.sql.DataSource <\/code>\u043f\u0440\u043e\u0441\u0442\u043e \u043d\u0430\u0441\u0442\u0440\u043e\u0439\u0442\u0435 \u0435\u0433\u043e \u0441 \u043f\u043e\u043c\u043e\u0449\u044c\u044e R2DBC io.r2dbc.spi.Connection <\/code>\u0438\u043b\u0438 io.r2dbc.spi.ConnectionFactory<\/code>:<\/p>\n

ConnectionFactory connectionFactory = ConnectionFactories.get(     ConnectionFactoryOptions         .parse(\"r2dbc:h2:file:\/\/localhost\/~\/r2dbc-test\")         .mutate()         .option(ConnectionFactoryOptions.USER, \"sa\")         .option(ConnectionFactoryOptions.PASSWORD, \"\")         .build() );   DSLContext ctx = DSL.using(connectionFactory);<\/code><\/pre>\n
\u0412 \u043a\u0430\u0447\u0435\u0441\u0442\u0432\u0435 \u0430\u043b\u044c\u0442\u0435\u0440\u043d\u0430\u0442\u0438\u0432\u044b \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0439\u0442\u0435 Spring Boot \u0434\u043b\u044f \u0430\u0432\u0442\u043e\u043c\u0430\u0442\u0438\u0447\u0435\u0441\u043a\u043e\u0439 \u043d\u0430\u0441\u0442\u0440\u043e\u0439\u043a\u0438 jOOQ \u0441\u043b\u0435\u0434\u0443\u044e\u0449\u0438\u043c \u043e\u0431\u0440\u0430\u0437\u043e\u043c:<\/p>\n
\n
\u041a\u043e\u043d\u0435\u0447\u043d\u043e, \u0445\u043e\u0440\u043e\u0448\u0438\u0439 \u043e\u0431\u0437\u043e\u0440: pic.twitter.com\/tUgNkwzCK4<\/a><\/p>\n
— \u0410\u043d\u0433\u0435\u043b \u041b\u0435\u043e\u043d\u0430\u0440\u0434 (@anghelleonard) 15 \u0438\u044e\u043b\u044f 2021 \u0433.<\/a><\/p>\n<\/blockquote>\n
\u0418\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u044f \u044d\u0442\u043e\u0442 DSLContext<\/code>, \u0432\u044b \u043c\u043e\u0436\u0435\u0442\u0435 \u0441\u0442\u0440\u043e\u0438\u0442\u044c \u0441\u0432\u043e\u0438 \u0437\u0430\u043f\u0440\u043e\u0441\u044b \u043a\u0430\u043a \u043e\u0431\u044b\u0447\u043d\u043e, \u043d\u043e \u0432\u043c\u0435\u0441\u0442\u043e \u0442\u043e\u0433\u043e, \u0447\u0442\u043e\u0431\u044b \u0432\u044b\u0437\u044b\u0432\u0430\u0442\u044c \u043e\u0431\u044b\u0447\u043d\u044b\u0435 \u0431\u043b\u043e\u043a\u0438\u0440\u0443\u044e\u0449\u0438\u0435 \u043c\u0435\u0442\u043e\u0434\u044b execute() <\/code>\u0438\u043b\u0438 fetch()<\/code>, \u0432\u044b \u043f\u0440\u043e\u0441\u0442\u043e \u043e\u0431\u0435\u0440\u043d\u0438\u0442\u0435 \u0437\u0430\u043f\u0440\u043e\u0441 \u0432 Flux<\/code>, \u043d\u0430\u043f\u0440\u0438\u043c\u0435\u0440. \u041f\u0440\u0435\u0434\u043f\u043e\u043b\u043e\u0436\u0438\u043c, \u0447\u0442\u043e \u0432\u044b \u0437\u0430\u043f\u0443\u0441\u0442\u0438\u043b\u0438 \u0433\u0435\u043d\u0435\u0440\u0430\u0442\u043e\u0440 \u043a\u043e\u0434\u0430 jOOQ \u043d\u0430 \u0441\u0432\u043e\u0435\u0439 H2 INFORMATION_SCHEMA<\/code>, \u0442\u043e\u0433\u0434\u0430 \u0432\u044b \u043c\u043e\u0436\u0435\u0442\u0435 \u043d\u0430\u043f\u0438\u0441\u0430\u0442\u044c:<\/p>\n
record Table(String schema, String table) {}   Flux.from(ctx         .select(             INFORMATION_SCHEMA.TABLES.TABLE_SCHEMA,             INFORMATION_SCHEMA.TABLES.TABLE_NAME)         .from(INFORMATION_SCHEMA.TABLES))       \/\/ Type safe mapping from Record2<String, String> to Table::new     .map(Records.mapping(Table::new))     .doOnNext(System.out::println)     .subscribe();<\/code><\/pre>\n
jOOQ \u043f\u043e\u043b\u0443\u0447\u0438\u0442 R2DBC Connection <\/code>\u0443 ConnectionFactory <\/code>\u0438 \u043e\u0441\u0432\u043e\u0431\u043e\u0434\u0438\u0442 \u0435\u0435 \u043f\u043e\u0441\u043b\u0435 \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044f \u0437\u0430\u043f\u0440\u043e\u0441\u0430, \u0447\u0442\u043e \u043f\u043e\u0437\u0432\u043e\u043b\u0438\u0442 \u043e\u043f\u0442\u0438\u043c\u0438\u0437\u0438\u0440\u043e\u0432\u0430\u0442\u044c \u0443\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u0435 \u0440\u0435\u0441\u0443\u0440\u0441\u0430\u043c\u0438, \u0447\u0442\u043e \u0432 \u043f\u0440\u043e\u0442\u0438\u0432\u043d\u043e\u043c \u0441\u043b\u0443\u0447\u0430\u0435 \u043d\u0435\u0441\u043a\u043e\u043b\u044c\u043a\u043e \u0441\u043b\u043e\u0436\u043d\u043e \u0441 R2DBC \u0438 reactor. \u0414\u0440\u0443\u0433\u0438\u043c\u0438 \u0441\u043b\u043e\u0432\u0430\u043c\u0438, \u043f\u0440\u0438\u0432\u0435\u0434\u0435\u043d\u043d\u044b\u0439 \u0432\u044b\u0448\u0435 \u043a\u043e\u0434 \u0441\u043e\u043e\u0442\u0432\u0435\u0442\u0441\u0442\u0432\u0443\u0435\u0442 \u044d\u0442\u043e\u043c\u0443 \u043d\u0430\u043f\u0438\u0441\u0430\u043d\u043d\u043e\u043c\u0443 \u0432\u0440\u0443\u0447\u043d\u0443\u044e \u0437\u0430\u043f\u0440\u043e\u0441\u0443:  <\/p>\n
Flux.usingWhen(         connectionFactory.create(),         c -> c.createStatement(                 \"\"\"                 SELECT table_schema, table_name                 FROM information_schema.tables                 \"\"\"              ).execute(),         c -> c.close()     )     .flatMap(it -> it.map((r, m) ->           new Table(r.get(0, String.class), r.get(1, String.class))     ))     .doOnNext(System.out::println)     .subscribe();<\/code><\/pre>\n
\u041e\u0431\u0430 \u043d\u0430\u043f\u0435\u0447\u0430\u0442\u0430\u044e\u0442 \u0447\u0442\u043e-\u0442\u043e \u0432\u0440\u043e\u0434\u0435 \u0441\u043b\u0435\u0434\u0443\u044e\u0449\u0435\u0433\u043e:<\/p>\n
\n
\n\n\n\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n
\u041e\u0431\u0440\u0430\u0442\u0438\u0442\u0435 \u0432\u043d\u0438\u043c\u0430\u043d\u0438\u0435, \u0447\u0442\u043e, \u0435\u0441\u043b\u0438 \u0432\u044b \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u0442\u0435 JDBC, \u0430 \u043d\u0435 R2DBC, \u0432\u044b \u043c\u043e\u0436\u0435\u0442\u0435 \u043f\u0440\u043e\u0434\u043e\u043b\u0436\u0430\u0442\u044c \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u044c jOOQ API \u0441 \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0430\u043c\u0438 \u0440\u0435\u0430\u043a\u0442\u0438\u0432\u043d\u044b\u0445 \u043f\u043e\u0442\u043e\u043a\u043e\u0432 \u0432 \u0440\u0435\u0436\u0438\u043c\u0435 \u0431\u043b\u043e\u043a\u0438\u0440\u043e\u0432\u043a\u0438 \u0442\u043e\u0447\u043d\u043e \u0442\u0430\u043a \u0436\u0435, \u043a\u0430\u043a \u0443\u043a\u0430\u0437\u0430\u043d\u043e \u0432\u044b\u0448\u0435, \u043d\u0430\u043f\u0440\u0438\u043c\u0435\u0440, \u0435\u0441\u043b\u0438 \u0432\u0430\u0448\u0430 \u043b\u044e\u0431\u0438\u043c\u0430\u044f \u0421\u0423\u0411\u0414 \u0435\u0449\u0435 \u043d\u0435 \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u0438\u0432\u0430\u0435\u0442 \u0440\u0435\u0430\u043a\u0442\u0438\u0432\u043d\u044b\u0439 \u0434\u0440\u0430\u0439\u0432\u0435\u0440 R2DBC. \u0412 \u043d\u0430\u0441\u0442\u043e\u044f\u0449\u0435\u0435 \u0432\u0440\u0435\u043c\u044f \u0441\u043f\u0438\u0441\u043e\u043a \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u0438\u0432\u0430\u0435\u043c\u044b\u0445 \u0434\u0440\u0430\u0439\u0432\u0435\u0440\u043e\u0432<\/a> \u0441\u043e\u0433\u043b\u0430\u0441\u043d\u043e r2dbc.io<\/a> \u0432\u043a\u043b\u044e\u0447\u0430\u0435\u0442:<\/p>\n
\n
Table[schema=INFORMATION_SCHEMA, table=TABLE_PRIVILEGES] Table[schema=INFORMATION_SCHEMA, table=REFERENTIAL_CONSTRAINTS] Table[schema=INFORMATION_SCHEMA, table=TABLE_TYPES] Table[schema=INFORMATION_SCHEMA, table=QUERY_STATISTICS] Table[schema=INFORMATION_SCHEMA, table=TABLES] Table[schema=INFORMATION_SCHEMA, table=SESSION_STATE] Table[schema=INFORMATION_SCHEMA, table=HELP] Table[schema=INFORMATION_SCHEMA, table=COLUMN_PRIVILEGES] Table[schema=INFORMATION_SCHEMA, table=SYNONYMS] Table[schema=INFORMATION_SCHEMA, table=SESSIONS] Table[schema=INFORMATION_SCHEMA, table=IN_DOUBT] Table[schema=INFORMATION_SCHEMA, table=USERS] Table[schema=INFORMATION_SCHEMA, table=COLLATIONS] Table[schema=INFORMATION_SCHEMA, table=SCHEMATA] Table[schema=INFORMATION_SCHEMA, table=TABLE_CONSTRAINTS] Table[schema=INFORMATION_SCHEMA, table=INDEXES] Table[schema=INFORMATION_SCHEMA, table=ROLES] Table[schema=INFORMATION_SCHEMA, table=FUNCTION_COLUMNS] Table[schema=INFORMATION_SCHEMA, table=CONSTANTS] Table[schema=INFORMATION_SCHEMA, table=SEQUENCES] Table[schema=INFORMATION_SCHEMA, table=RIGHTS] Table[schema=INFORMATION_SCHEMA, table=FUNCTION_ALIASES] Table[schema=INFORMATION_SCHEMA, table=CATALOGS] Table[schema=INFORMATION_SCHEMA, table=CROSS_REFERENCES] Table[schema=INFORMATION_SCHEMA, table=SETTINGS] Table[schema=INFORMATION_SCHEMA, table=DOMAINS] Table[schema=INFORMATION_SCHEMA, table=KEY_COLUMN_USAGE] Table[schema=INFORMATION_SCHEMA, table=LOCKS] Table[schema=INFORMATION_SCHEMA, table=COLUMNS] Table[schema=INFORMATION_SCHEMA, table=TRIGGERS] Table[schema=INFORMATION_SCHEMA, table=VIEWS] Table[schema=INFORMATION_SCHEMA, table=TYPE_INFO] Table[schema=INFORMATION_SCHEMA, table=CONSTRAINTS]<\/p>\n<\/td>\n<\/tr>\n
\n\n\n\n
\n
FIRST_NAME<\/p>\n<\/td>\n
\n
LAST_NAME<\/p>\n<\/td>\n
\n
TITLE<\/p>\n<\/td>\n<\/tr>\n
\n
John      <\/p>\n<\/td>\n
\n
Doe      <\/p>\n<\/td>\n
\n
Fancy Book<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<\/div>\n
 \u0441\u0441\u044b\u043b\u043a\u0430 \u043d\u0430 \u043e\u0440\u0438\u0433\u0438\u043d\u0430\u043b \u0441\u0442\u0430\u0442\u044c\u0438  https:\/\/habr.com\/ru\/post\/568830\/<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"\n
\n
\u041e\u0434\u043d\u0430 \u0438\u0437 \u0441\u0430\u043c\u044b\u0445 \u0431\u043e\u043b\u044c\u0448\u0438\u0445 \u043d\u043e\u0432\u044b\u0445 \u0444\u0443\u043d\u043a\u0446\u0438\u0439 \u043d\u0435\u0434\u0430\u0432\u043d\u043e \u0432\u044b\u043f\u0443\u0449\u0435\u043d\u043d\u043e\u0433\u043e jOOQ 3.15 — \u044d\u0442\u043e \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0430 \u0440\u0435\u0430\u043a\u0442\u0438\u0432\u043d\u044b\u0445 \u0437\u0430\u043f\u0440\u043e\u0441\u043e\u0432 \u0441 \u043f\u043e\u043c\u043e\u0449\u044c\u044e R2DBC<\/a>. \u042d\u0442\u043e \u0431\u044b\u043b \u043e\u0447\u0435\u043d\u044c \u043f\u043e\u043f\u0443\u043b\u044f\u0440\u043d\u044b\u0439 \u0437\u0430\u043f\u0440\u043e\u0441 \u0444\u0443\u043d\u043a\u0446\u0438\u043e\u043d\u0430\u043b\u044c\u043d\u043e\u0441\u0442\u0438, \u0438 \u043c\u044b \u043d\u0430\u043a\u043e\u043d\u0435\u0446 \u0435\u0433\u043e \u0432\u044b\u043f\u043e\u043b\u043d\u0438\u043b\u0438.  <\/p>\n
\u0412\u044b \u043c\u043e\u0436\u0435\u0442\u0435 \u043f\u0440\u043e\u0434\u043e\u043b\u0436\u0430\u0442\u044c \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u044c jOOQ \u0442\u0430\u043a, \u043a\u0430\u043a \u0432\u044b \u043f\u0440\u0438\u0432\u044b\u043a\u043b\u0438, \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0438\u0432\u0430\u044f \u0442\u0438\u043f\u043e\u0431\u0435\u0437\u043e\u043f\u0430\u0441\u043d\u044b\u0439 SQL, \u0432\u0441\u0442\u0440\u043e\u0435\u043d\u043d\u044b\u0439 \u0432 Java, kotlin \u0438\u043b\u0438 scala, \u043d\u043e \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u0435 \u0432\u0430\u0448\u0438\u0445 \u0437\u0430\u043f\u0440\u043e\u0441\u043e\u0432 \u0431\u043e\u043b\u044c\u0448\u0435 \u043d\u0435 \u0431\u043b\u043e\u043a\u0438\u0440\u0443\u0435\u0442\u0441\u044f. \u0412\u043c\u0435\u0441\u0442\u043e \u044d\u0442\u043e\u0433\u043e \u0432\u0430\u0448 jOOQ ResultQuery <\/code>\u0438\u043b\u0438 Query <\/code>\u043c\u043e\u0436\u0435\u0442 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u044c\u0441\u044f \u043a\u0430\u043a Publisher<R> <\/code>\u0438\u043b\u0438 Publisher<Integer> <\/code>\u0432 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0438 reactive-streams  (\u0440\u0435\u0430\u043a\u0442\u0438\u0432\u043d\u044b\u0445 \u043f\u043e\u0442\u043e\u043a\u043e\u0432) \u043f\u043e \u0432\u0430\u0448\u0435\u043c\u0443 \u0432\u044b\u0431\u043e\u0440\u0443.<\/p>\n
\u0412\u043c\u0435\u0441\u0442\u043e (\u0438\u043b\u0438 \u0432 \u0434\u043e\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u0435 \u043a) \u043d\u0430\u0441\u0442\u0440\u043e\u0439\u043a\u0438 \u0432\u0430\u0448\u0435\u0433\u043e jOOQ DSLContext <\/code>\u0441 \u043f\u043e\u043c\u043e\u0449\u044c\u044e JDBC java.sql.Connection <\/code>\u0438\u043b\u0438 javax.sql.DataSource <\/code>\u043f\u0440\u043e\u0441\u0442\u043e \u043d\u0430\u0441\u0442\u0440\u043e\u0439\u0442\u0435 \u0435\u0433\u043e \u0441 \u043f\u043e\u043c\u043e\u0449\u044c\u044e R2DBC io.r2dbc.spi.Connection <\/code>\u0438\u043b\u0438 io.r2dbc.spi.ConnectionFactory<\/code>:<\/p>\n
ConnectionFactory connectionFactory = ConnectionFactories.get(     ConnectionFactoryOptions         .parse(\"r2dbc:h2:file:\/\/localhost\/~\/r2dbc-test\")         .mutate()         .option(ConnectionFactoryOptions.USER, \"sa\")         .option(ConnectionFactoryOptions.PASSWORD, \"\")         .build() );   DSLContext ctx = DSL.using(connectionFactory);<\/code><\/pre>\n
\u0412 \u043a\u0430\u0447\u0435\u0441\u0442\u0432\u0435 \u0430\u043b\u044c\u0442\u0435\u0440\u043d\u0430\u0442\u0438\u0432\u044b \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0439\u0442\u0435 Spring Boot \u0434\u043b\u044f \u0430\u0432\u0442\u043e\u043c\u0430\u0442\u0438\u0447\u0435\u0441\u043a\u043e\u0439 \u043d\u0430\u0441\u0442\u0440\u043e\u0439\u043a\u0438 jOOQ \u0441\u043b\u0435\u0434\u0443\u044e\u0449\u0438\u043c \u043e\u0431\u0440\u0430\u0437\u043e\u043c:<\/p>\n
\n
\u041a\u043e\u043d\u0435\u0447\u043d\u043e, \u0445\u043e\u0440\u043e\u0448\u0438\u0439 \u043e\u0431\u0437\u043e\u0440: pic.twitter.com\/tUgNkwzCK4<\/a><\/p>\n
— \u0410\u043d\u0433\u0435\u043b \u041b\u0435\u043e\u043d\u0430\u0440\u0434 (@anghelleonard) 15 \u0438\u044e\u043b\u044f 2021 \u0433.<\/a><\/p>\n<\/blockquote>\n
\u0418\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u044f \u044d\u0442\u043e\u0442 DSLContext<\/code>, \u0432\u044b \u043c\u043e\u0436\u0435\u0442\u0435 \u0441\u0442\u0440\u043e\u0438\u0442\u044c \u0441\u0432\u043e\u0438 \u0437\u0430\u043f\u0440\u043e\u0441\u044b \u043a\u0430\u043a \u043e\u0431\u044b\u0447\u043d\u043e, \u043d\u043e \u0432\u043c\u0435\u0441\u0442\u043e \u0442\u043e\u0433\u043e, \u0447\u0442\u043e\u0431\u044b \u0432\u044b\u0437\u044b\u0432\u0430\u0442\u044c \u043e\u0431\u044b\u0447\u043d\u044b\u0435 \u0431\u043b\u043e\u043a\u0438\u0440\u0443\u044e\u0449\u0438\u0435 \u043c\u0435\u0442\u043e\u0434\u044b execute() <\/code>\u0438\u043b\u0438 fetch()<\/code>, \u0432\u044b \u043f\u0440\u043e\u0441\u0442\u043e \u043e\u0431\u0435\u0440\u043d\u0438\u0442\u0435 \u0437\u0430\u043f\u0440\u043e\u0441 \u0432 Flux<\/code>, \u043d\u0430\u043f\u0440\u0438\u043c\u0435\u0440. \u041f\u0440\u0435\u0434\u043f\u043e\u043b\u043e\u0436\u0438\u043c, \u0447\u0442\u043e \u0432\u044b \u0437\u0430\u043f\u0443\u0441\u0442\u0438\u043b\u0438 \u0433\u0435\u043d\u0435\u0440\u0430\u0442\u043e\u0440 \u043a\u043e\u0434\u0430 jOOQ \u043d\u0430 \u0441\u0432\u043e\u0435\u0439 H2 INFORMATION_SCHEMA<\/code>, \u0442\u043e\u0433\u0434\u0430 \u0432\u044b \u043c\u043e\u0436\u0435\u0442\u0435 \u043d\u0430\u043f\u0438\u0441\u0430\u0442\u044c:<\/p>\n
record Table(String schema, String table) {}   Flux.from(ctx         .select(             INFORMATION_SCHEMA.TABLES.TABLE_SCHEMA,             INFORMATION_SCHEMA.TABLES.TABLE_NAME)         .from(INFORMATION_SCHEMA.TABLES))       \/\/ Type safe mapping from Record2<String, String> to Table::new     .map(Records.mapping(Table::new))     .doOnNext(System.out::println)     .subscribe();<\/code><\/pre>\n
jOOQ \u043f\u043e\u043b\u0443\u0447\u0438\u0442 R2DBC Connection <\/code>\u0443 ConnectionFactory <\/code>\u0438 \u043e\u0441\u0432\u043e\u0431\u043e\u0434\u0438\u0442 \u0435\u0435 \u043f\u043e\u0441\u043b\u0435 \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044f \u0437\u0430\u043f\u0440\u043e\u0441\u0430, \u0447\u0442\u043e \u043f\u043e\u0437\u0432\u043e\u043b\u0438\u0442 \u043e\u043f\u0442\u0438\u043c\u0438\u0437\u0438\u0440\u043e\u0432\u0430\u0442\u044c \u0443\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u0435 \u0440\u0435\u0441\u0443\u0440\u0441\u0430\u043c\u0438, \u0447\u0442\u043e \u0432 \u043f\u0440\u043e\u0442\u0438\u0432\u043d\u043e\u043c \u0441\u043b\u0443\u0447\u0430\u0435 \u043d\u0435\u0441\u043a\u043e\u043b\u044c\u043a\u043e \u0441\u043b\u043e\u0436\u043d\u043e \u0441 R2DBC \u0438 reactor. \u0414\u0440\u0443\u0433\u0438\u043c\u0438 \u0441\u043b\u043e\u0432\u0430\u043c\u0438, \u043f\u0440\u0438\u0432\u0435\u0434\u0435\u043d\u043d\u044b\u0439 \u0432\u044b\u0448\u0435 \u043a\u043e\u0434 \u0441\u043e\u043e\u0442\u0432\u0435\u0442\u0441\u0442\u0432\u0443\u0435\u0442 \u044d\u0442\u043e\u043c\u0443 \u043d\u0430\u043f\u0438\u0441\u0430\u043d\u043d\u043e\u043c\u0443 \u0432\u0440\u0443\u0447\u043d\u0443\u044e \u0437\u0430\u043f\u0440\u043e\u0441\u0443:  <\/p>\n
Flux.usingWhen(         connectionFactory.create(),         c -> c.createStatement(                 \"\"\"                 SELECT table_schema, table_name                 FROM information_schema.tables                 \"\"\"              ).execute(),         c -> c.close()     )     .flatMap(it -> it.map((r, m) ->           new Table(r.get(0, String.class), r.get(1, String.class))     ))     .doOnNext(System.out::println)     .subscribe();<\/code><\/pre>\n
\u041e\u0431\u0430 \u043d\u0430\u043f\u0435\u0447\u0430\u0442\u0430\u044e\u0442 \u0447\u0442\u043e-\u0442\u043e \u0432\u0440\u043e\u0434\u0435 \u0441\u043b\u0435\u0434\u0443\u044e\u0449\u0435\u0433\u043e:<\/p>\n
\n
\n\n\n\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n
\u041e\u0431\u0440\u0430\u0442\u0438\u0442\u0435 \u0432\u043d\u0438\u043c\u0430\u043d\u0438\u0435, \u0447\u0442\u043e, \u0435\u0441\u043b\u0438 \u0432\u044b \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u0442\u0435 JDBC, \u0430 \u043d\u0435 R2DBC, \u0432\u044b \u043c\u043e\u0436\u0435\u0442\u0435 \u043f\u0440\u043e\u0434\u043e\u043b\u0436\u0430\u0442\u044c \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u044c jOOQ API \u0441 \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0430\u043c\u0438 \u0440\u0435\u0430\u043a\u0442\u0438\u0432\u043d\u044b\u0445 \u043f\u043e\u0442\u043e\u043a\u043e\u0432 \u0432 \u0440\u0435\u0436\u0438\u043c\u0435 \u0431\u043b\u043e\u043a\u0438\u0440\u043e\u0432\u043a\u0438 \u0442\u043e\u0447\u043d\u043e \u0442\u0430\u043a \u0436\u0435, \u043a\u0430\u043a \u0443\u043a\u0430\u0437\u0430\u043d\u043e \u0432\u044b\u0448\u0435, \u043d\u0430\u043f\u0440\u0438\u043c\u0435\u0440, \u0435\u0441\u043b\u0438 \u0432\u0430\u0448\u0430 \u043b\u044e\u0431\u0438\u043c\u0430\u044f \u0421\u0423\u0411\u0414 \u0435\u0449\u0435 \u043d\u0435 \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u0438\u0432\u0430\u0435\u0442 \u0440\u0435\u0430\u043a\u0442\u0438\u0432\u043d\u044b\u0439 \u0434\u0440\u0430\u0439\u0432\u0435\u0440 R2DBC. \u0412 \u043d\u0430\u0441\u0442\u043e\u044f\u0449\u0435\u0435 \u0432\u0440\u0435\u043c\u044f \u0441\u043f\u0438\u0441\u043e\u043a \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u0438\u0432\u0430\u0435\u043c\u044b\u0445 \u0434\u0440\u0430\u0439\u0432\u0435\u0440\u043e\u0432<\/a> \u0441\u043e\u0433\u043b\u0430\u0441\u043d\u043e r2dbc.io<\/a> \u0432\u043a\u043b\u044e\u0447\u0430\u0435\u0442:<\/p>\n
\n
Table[schema=INFORMATION_SCHEMA, table=TABLE_PRIVILEGES] Table[schema=INFORMATION_SCHEMA, table=REFERENTIAL_CONSTRAINTS] Table[schema=INFORMATION_SCHEMA, table=TABLE_TYPES] Table[schema=INFORMATION_SCHEMA, table=QUERY_STATISTICS] Table[schema=INFORMATION_SCHEMA, table=TABLES] Table[schema=INFORMATION_SCHEMA, table=SESSION_STATE] Table[schema=INFORMATION_SCHEMA, table=HELP] Table[schema=INFORMATION_SCHEMA, table=COLUMN_PRIVILEGES] Table[schema=INFORMATION_SCHEMA, table=SYNONYMS] Table[schema=INFORMATION_SCHEMA, table=SESSIONS] Table[schema=INFORMATION_SCHEMA, table=IN_DOUBT] Table[schema=INFORMATION_SCHEMA, table=USERS] Table[schema=INFORMATION_SCHEMA, table=COLLATIONS] Table[schema=INFORMATION_SCHEMA, table=SCHEMATA] Table[schema=INFORMATION_SCHEMA, table=TABLE_CONSTRAINTS] Table[schema=INFORMATION_SCHEMA, table=INDEXES] Table[schema=INFORMATION_SCHEMA, table=ROLES] Table[schema=INFORMATION_SCHEMA, table=FUNCTION_COLUMNS] Table[schema=INFORMATION_SCHEMA, table=CONSTANTS] Table[schema=INFORMATION_SCHEMA, table=SEQUENCES] Table[schema=INFORMATION_SCHEMA, table=RIGHTS] Table[schema=INFORMATION_SCHEMA, table=FUNCTION_ALIASES] Table[schema=INFORMATION_SCHEMA, table=CATALOGS] Table[schema=INFORMATION_SCHEMA, table=CROSS_REFERENCES] Table[schema=INFORMATION_SCHEMA, table=SETTINGS] Table[schema=INFORMATION_SCHEMA, table=DOMAINS] Table[schema=INFORMATION_SCHEMA, table=KEY_COLUMN_USAGE] Table[schema=INFORMATION_SCHEMA, table=LOCKS] Table[schema=INFORMATION_SCHEMA, table=COLUMNS] Table[schema=INFORMATION_SCHEMA, table=TRIGGERS] Table[schema=INFORMATION_SCHEMA, table=VIEWS] Table[schema=INFORMATION_SCHEMA, table=TYPE_INFO] Table[schema=INFORMATION_SCHEMA, table=CONSTRAINTS]<\/p>\n<\/td>\n<\/tr>\n
\n\n\n\n
\n
FIRST_NAME<\/p>\n<\/td>\n
\n
LAST_NAME<\/p>\n<\/td>\n
\n
TITLE<\/p>\n<\/td>\n<\/tr>\n
\n
John      <\/p>\n<\/td>\n
\n
Doe      <\/p>\n<\/td>\n
\n
Fancy Book<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<\/div>\n
 \u0441\u0441\u044b\u043b\u043a\u0430 \u043d\u0430 \u043e\u0440\u0438\u0433\u0438\u043d\u0430\u043b \u0441\u0442\u0430\u0442\u044c\u0438  https:\/\/habr.com\/ru\/post\/568830\/<\/a>
<\/br><\/br><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[],"tags":[],"class_list":["post-326777","post","type-post","status-publish","format-standard","hentry"],"_links":{"self":[{"href":"https:\/\/savepearlharbor.com\/index.php?rest_route=\/wp\/v2\/posts\/326777","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/savepearlharbor.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/savepearlharbor.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/savepearlharbor.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/savepearlharbor.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=326777"}],"version-history":[{"count":0,"href":"https:\/\/savepearlharbor.com\/index.php?rest_route=\/wp\/v2\/posts\/326777\/revisions"}],"wp:attachment":[{"href":"https:\/\/savepearlharbor.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=326777"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/savepearlharbor.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=326777"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/savepearlharbor.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=326777"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}