example.springdata.mongodb.people.RxJava2PersonRepository.java Source code

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Here is the source code for example.springdata.mongodb.people.RxJava2PersonRepository.java

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/*
 * Copyright 2016-2017 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package example.springdata.mongodb.people;

import io.reactivex.Flowable;
import io.reactivex.Maybe;
import io.reactivex.Single;

import org.springframework.data.mongodb.repository.Query;
import org.springframework.data.mongodb.repository.Tailable;
import org.springframework.data.repository.reactive.RxJava2CrudRepository;

/**
 * Repository interface to manage {@link Person} instances.
 *
 * @author Mark Paluch
 * @author Christoph Strobl
 */
public interface RxJava2PersonRepository extends RxJava2CrudRepository<Person, String> {

    /**
     * Derived query selecting by {@code lastname}.
     *
     * @param lastname
     * @return
     */
    Flowable<Person> findByLastname(String lastname);

    /**
     * String query selecting one entity.
     *
     * @param lastname
     * @return
     */
    @Query("{ 'firstname': ?0, 'lastname': ?1}")
    Maybe<Person> findByFirstnameAndLastname(String firstname, String lastname);

    /**
     * Derived query selecting by {@code lastname}. {@code lastname} uses deferred resolution that does not require
     * blocking to obtain the parameter value.
     *
     * @param lastname
     * @return
     */
    Flowable<Person> findByLastname(Single<String> lastname);

    /**
     * Derived query selecting by {@code firstname} and {@code lastname}. {@code firstname} uses deferred resolution which
     * does not require blocking to obtain the parameter value.
     *
     * @param firstname
     * @param lastname
     * @return
     */
    Maybe<Person> findByFirstnameAndLastname(Single<String> firstname, String lastname);

    /**
     * Use a tailable cursor to emit a stream of entities as new entities are written to the capped collection.
     *
     * @return
     */
    @Tailable
    Flowable<Person> findWithTailableCursorBy();
}