net.benpl.r2dbc.support

类 Postgres

java.lang.Object

net.benpl.r2dbc.support.Postgres

所有已实现的接口:

R2dbc

public class Postgres
extends Object

PostgreSQL Adaptation.

构造器概要

构造器

构造器和说明
Postgres(org.springframework.data.r2dbc.core.DatabaseClient databaseClient)

方法概要

限定符和类型	方法和说明
<T> reactor.core.publisher.Mono<Long>	count(Class<T> clazz) Returns the number of entities available.
<T> reactor.core.publisher.Mono<Boolean>	delete(T entity) Deletes the given entity.
<T> reactor.core.publisher.Mono<Integer>	deleteAll(Class<T> clazz) Deletes all entities.
<T> reactor.core.publisher.Mono<Integer>	deleteAll(List<T> entities) Deletes the given entities.
<T> reactor.core.publisher.Mono<Boolean>	deleteById(Class<T> clazz, @NonNull Object id) Deletes the entity with the given id.
org.springframework.data.r2dbc.core.DatabaseClient.GenericExecuteSpec	execute(String sql, Object... params) Executes SQL with given parameters.
<T> reactor.core.publisher.Mono<Boolean>	existsById(Class<T> clazz, @NonNull Object id) Returns whether an entity with the id exists.
<T> reactor.core.publisher.Flux<T>	findAll(Class<T> clazz) Returns all instances of the type.
<T> reactor.core.publisher.Mono<T>	findById(Class<T> clazz, @NonNull Object id) Retrieves an entity by its id.
<T> reactor.core.publisher.Mono<T>	save(T entity) Saves a given entity.
<T> reactor.core.publisher.Flux<T>	select(Class<T> clazz, String sql, Object... params) Performs SELECT operation with given SQL and parameters.
reactor.core.publisher.Mono<Integer>	update(String sql, Object... params) Performs DELETE/UPDATE/...

从类继承的方法 java.lang.Object

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

从接口继承的方法 net.benpl.r2dbc.R2dbc

of

构造器详细资料

Postgres

public Postgres(org.springframework.data.r2dbc.core.DatabaseClient databaseClient)

方法详细资料

count

public <T> reactor.core.publisher.Mono<Long> count(Class<T> clazz)

从接口复制的说明: R2dbc

Returns the number of entities available.

指定者:

count 在接口中 R2dbc

参数:

clazz - the entity type.

返回:

Mono emitting the number of entities.

existsById

public <T> reactor.core.publisher.Mono<Boolean> existsById(Class<T> clazz,
                                                           @NonNull
                                                           @NonNull Object id)

从接口复制的说明: R2dbc

Returns whether an entity with the id exists.

指定者:

existsById 在接口中 R2dbc

参数:

clazz - the entity type.

id - must not be null.

返回:

Mono emitting true if an entity with the given id exists, false otherwise.

save

public <T> reactor.core.publisher.Mono<T> save(@NonNull
                                               T entity)

从接口复制的说明: R2dbc

Saves a given entity. Use the returned instance for further operations as the save operation might have changed the entity instance completely.

指定者:

save 在接口中 R2dbc

参数:

entity - must not be null.

返回:

Mono emitting the saved entity.

findById

public <T> reactor.core.publisher.Mono<T> findById(Class<T> clazz,
                                                   @NonNull
                                                   @NonNull Object id)

从接口复制的说明: R2dbc

Retrieves an entity by its id.

指定者:

findById 在接口中 R2dbc

参数:

clazz - the entity type.

id - must not be null.

返回:

Mono emitting the entity with the given id or Mono.empty() if none found.

findAll

public <T> reactor.core.publisher.Flux<T> findAll(Class<T> clazz)

从接口复制的说明: R2dbc

Returns all instances of the type.

指定者:

findAll 在接口中 R2dbc

参数:

clazz - the entity type.

返回:

Flux emitting all entities.

delete

public <T> reactor.core.publisher.Mono<Boolean> delete(@NonNull
                                                       T entity)

从接口复制的说明: R2dbc

Deletes the given entity.

指定者:

delete 在接口中 R2dbc

参数:

entity - must not be null.

返回:

Mono emitting true if success, false otherwise.

deleteAll

public <T> reactor.core.publisher.Mono<Integer> deleteAll(List<T> entities)

从接口复制的说明: R2dbc

Deletes the given entities.

指定者:

deleteAll 在接口中 R2dbc

参数:

entities - must not be null.

返回:

Mono the number of entities deleted.

deleteById

public <T> reactor.core.publisher.Mono<Boolean> deleteById(Class<T> clazz,
                                                           @NonNull
                                                           @NonNull Object id)

从接口复制的说明: R2dbc

Deletes the entity with the given id.

指定者:

deleteById 在接口中 R2dbc

参数:

clazz - the entity type.

id - must not be null.

返回:

Mono emitting true if success, false otherwise.

deleteAll

public <T> reactor.core.publisher.Mono<Integer> deleteAll(Class<T> clazz)

从接口复制的说明: R2dbc

Deletes all entities.

指定者:

deleteAll 在接口中 R2dbc

参数:

clazz - the entity type.

返回:

Mono the number of entities deleted.

select

public <T> reactor.core.publisher.Flux<T> select(Class<T> clazz,
                                                 String sql,
                                                 Object... params)

从接口复制的说明: R2dbc

Performs SELECT operation with given SQL and parameters.

指定者:

select 在接口中 R2dbc

参数:

clazz - the entity type.

sql - the SQL.

params - the parameters. each parameter must not be null

返回:

Flux emitting the selected entities.

update

public reactor.core.publisher.Mono<Integer> update(String sql,
                                                   Object... params)

从接口复制的说明: R2dbc

Performs DELETE/UPDATE/...(update) operation with given SQL and parameters.

指定者:

update 在接口中 R2dbc

参数:

sql - the SQL.

params - the parameters. each parameter must not be null

返回:

Mono the number of entities updated.

execute

public org.springframework.data.r2dbc.core.DatabaseClient.GenericExecuteSpec execute(String sql,
                                                                                     Object... params)

从接口复制的说明: R2dbc

Executes SQL with given parameters.

指定者:

execute 在接口中 R2dbc

参数:

sql - the SQL.

params - the parameters. each parameter must not be null

返回:

DatabaseClient.GenericExecuteSpec user to decide how to handle the execution result.