io.micronaut.data.runtime.operations

Class ExecutorReactiveOperations

java.lang.Object

io.micronaut.data.runtime.operations.ExecutorReactiveOperations

All Implemented Interfaces:

ReactiveRepositoryOperations

public class ExecutorReactiveOperations
extends java.lang.Object
implements ReactiveRepositoryOperations

An implementation of ReactiveRepositoryOperations that delegates to a blocking operations and specified Executor. This can be used in absence of true reactive support at the driver level an allows composing blocking operations within reactive flows.

If a backing implementation provides a reactive API then the backing implementation should not use this class and instead directly implement the ReactiveRepositoryOperations interface.

Since:

1.0.0

Author:

graemerocher

See Also:

ReactiveRepositoryOperations

Constructor Summary

Constructors

Constructor and Description
ExecutorReactiveOperations(ExecutorAsyncOperations asyncOperations) Default constructor.
ExecutorReactiveOperations(RepositoryOperations datastore, java.util.concurrent.Executor executor) Default constructor.

Method Summary

Modifier and Type	Method and Description
<T> org.reactivestreams.Publisher<java.lang.Long>	count(PagedQuery<T> pagedQuery) Counts all results for the given query.
<T> org.reactivestreams.Publisher<java.lang.Number>	deleteAll(BatchOperation<T> operation) Deletes all the entities of the given type.
org.reactivestreams.Publisher<java.lang.Number>	executeUpdate(PreparedQuery<?,java.lang.Number> preparedQuery) Executes an update for the given query and parameter values.
<T> org.reactivestreams.Publisher<java.lang.Boolean>	exists(PreparedQuery<T,java.lang.Boolean> preparedQuery) Check with an record exists for the given query.
<T> org.reactivestreams.Publisher<T>	findAll(PagedQuery<T> pagedQuery) Finds all results for the given query.
<T,R> org.reactivestreams.Publisher<R>	findAll(PreparedQuery<T,R> preparedQuery) Finds all results for the given query.
<T> org.reactivestreams.Publisher<T>	findOne(java.lang.Class<T> type, java.io.Serializable id) Find one by ID.
<T,R> org.reactivestreams.Publisher<R>	findOne(PreparedQuery<T,R> preparedQuery) Find one by Query.
<T> org.reactivestreams.Publisher<T>	findOptional(java.lang.Class<T> type, java.io.Serializable id) Find one by ID.
<T,R> org.reactivestreams.Publisher<R>	findOptional(PreparedQuery<T,R> preparedQuery) Find one by Query.
<R> org.reactivestreams.Publisher<Page<R>>	findPage(PagedQuery<R> pagedQuery) Find a page for the given entity and pageable.
<T> org.reactivestreams.Publisher<T>	persist(InsertOperation<T> entity) Persist the entity returning a possibly new entity.
<T> org.reactivestreams.Publisher<T>	persistAll(BatchOperation<T> operation) Persist all the given entities.
<T> org.reactivestreams.Publisher<T>	update(UpdateOperation<T> operation) Updates the entity returning a possibly new entity.

Methods inherited from class java.lang.Object

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

Constructor Detail

ExecutorReactiveOperations

public ExecutorReactiveOperations(@NonNull
                                  RepositoryOperations datastore,
                                  @NonNull
                                  java.util.concurrent.Executor executor)

Default constructor.

Parameters:

datastore - The target operations

executor - The executor to use.

ExecutorReactiveOperations

public ExecutorReactiveOperations(@NonNull
                                  ExecutorAsyncOperations asyncOperations)

Default constructor.

Parameters:

asyncOperations - The instance operations instance

Method Detail

findOne

@NonNull
public <T> org.reactivestreams.Publisher<T> findOne(@NonNull
                                                             java.lang.Class<T> type,
                                                             @NonNull
                                                             java.io.Serializable id)

Description copied from interface: ReactiveRepositoryOperations

Find one by ID.

Specified by:

findOne in interface ReactiveRepositoryOperations

Type Parameters:

T - The generic type

Parameters:

type - The type

id - The id

Returns:

A publisher that emits the result

exists

public <T> org.reactivestreams.Publisher<java.lang.Boolean> exists(@NonNull
                                                                   PreparedQuery<T,java.lang.Boolean> preparedQuery)

Description copied from interface: ReactiveRepositoryOperations

Check with an record exists for the given query.

Specified by:

exists in interface ReactiveRepositoryOperations

Type Parameters:

T - The declaring type

Parameters:

preparedQuery - The query

Returns:

True if it exists

findOne

@NonNull
public <T,R> org.reactivestreams.Publisher<R> findOne(@NonNull
                                                               PreparedQuery<T,R> preparedQuery)

Description copied from interface: ReactiveRepositoryOperations

Find one by Query.

Specified by:

findOne in interface ReactiveRepositoryOperations

Type Parameters:

T - The generic resultType

R - The result type

Parameters:

preparedQuery - The prepared query

Returns:

A publisher that emits the result

findOptional

@NonNull
public <T> org.reactivestreams.Publisher<T> findOptional(@NonNull
                                                                  java.lang.Class<T> type,
                                                                  @NonNull
                                                                  java.io.Serializable id)

Description copied from interface: ReactiveRepositoryOperations

Find one by ID.

Specified by:

findOptional in interface ReactiveRepositoryOperations

Type Parameters:

T - The generic type

Parameters:

type - The type

id - The id

Returns:

A publisher that emits zero or one result

findOptional

@NonNull
public <T,R> org.reactivestreams.Publisher<R> findOptional(@NonNull
                                                                    PreparedQuery<T,R> preparedQuery)

Description copied from interface: ReactiveRepositoryOperations

Find one by Query.

Specified by:

findOptional in interface ReactiveRepositoryOperations

Type Parameters:

T - The generic resultType

R - The result type

Parameters:

preparedQuery - The prepared query

Returns:

A publisher that emits the zero or one result

findAll

@NonNull
public <T> org.reactivestreams.Publisher<T> findAll(PagedQuery<T> pagedQuery)

Description copied from interface: ReactiveRepositoryOperations

Finds all results for the given query.

Specified by:

findAll in interface ReactiveRepositoryOperations

Type Parameters:

T - The generic type

Parameters:

pagedQuery - The paged query

Returns:

A publisher that emits the results

count

@NonNull
public <T> org.reactivestreams.Publisher<java.lang.Long> count(PagedQuery<T> pagedQuery)

Description copied from interface: ReactiveRepositoryOperations

Counts all results for the given query.

Specified by:

count in interface ReactiveRepositoryOperations

Type Parameters:

T - The generic type

Parameters:

pagedQuery - The paged query

Returns:

A publisher that emits the count as a long

findPage

@NonNull
public <R> org.reactivestreams.Publisher<Page<R>> findPage(@NonNull
                                                                    PagedQuery<R> pagedQuery)

Description copied from interface: ReactiveRepositoryOperations

Find a page for the given entity and pageable.

Specified by:

findPage in interface ReactiveRepositoryOperations

Type Parameters:

R - The entity generic type

Parameters:

pagedQuery - The paged query

Returns:

The page type

findAll

@NonNull
public <T,R> org.reactivestreams.Publisher<R> findAll(@NonNull
                                                               PreparedQuery<T,R> preparedQuery)

Description copied from interface: ReactiveRepositoryOperations

Finds all results for the given query.

Specified by:

findAll in interface ReactiveRepositoryOperations

Type Parameters:

T - The entity type

R - The result type

Parameters:

preparedQuery - The prepared query

Returns:

A publisher that emits an iterable with all results

persist

@NonNull
public <T> org.reactivestreams.Publisher<T> persist(@NonNull
                                                             InsertOperation<T> entity)

Description copied from interface: ReactiveRepositoryOperations

Persist the entity returning a possibly new entity.

Specified by:

persist in interface ReactiveRepositoryOperations

Type Parameters:

T - The generic type

Parameters:

entity - The entity operation

Returns:

A publisher that emits the entity

update

@NonNull
public <T> org.reactivestreams.Publisher<T> update(@NonNull
                                                            UpdateOperation<T> operation)

Description copied from interface: ReactiveRepositoryOperations

Updates the entity returning a possibly new entity.

Specified by:

update in interface ReactiveRepositoryOperations

Type Parameters:

T - The generic type

Parameters:

operation - The entity operation

Returns:

A publisher that emits the entity

persistAll

@NonNull
public <T> org.reactivestreams.Publisher<T> persistAll(@NonNull
                                                                BatchOperation<T> operation)

Description copied from interface: ReactiveRepositoryOperations

Persist all the given entities.

Specified by:

persistAll in interface ReactiveRepositoryOperations

Type Parameters:

T - The generic type

Parameters:

operation - The batch operation

Returns:

The entities, possibly mutated

executeUpdate

@NonNull
public org.reactivestreams.Publisher<java.lang.Number> executeUpdate(@NonNull
                                                                              PreparedQuery<?,java.lang.Number> preparedQuery)

Description copied from interface: ReactiveRepositoryOperations

Executes an update for the given query and parameter values. If it is possible to return the number of objects updated, then do so.

Specified by:

executeUpdate in interface ReactiveRepositoryOperations

Parameters:

preparedQuery - The prepared query

Returns:

A publisher that emits a boolean true if the update was successful

deleteAll

@NonNull
public <T> org.reactivestreams.Publisher<java.lang.Number> deleteAll(BatchOperation<T> operation)

Description copied from interface: ReactiveRepositoryOperations

Deletes all the entities of the given type.

Specified by:

deleteAll in interface ReactiveRepositoryOperations

Type Parameters:

T - The generic type

Parameters:

operation - The batch operation

Returns:

A publisher that emits a boolean true if the update was successful