Spring/spring-data-r2dbc
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#2 - Add DatabaseClient.select().

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We now allow typesafe and generic selection of rows.
This commit is contained in:
Mark Paluch
2018-06-19 16:37:14 +02:00
parent 1d5bb962fd
commit 4d5d310741
5 changed files with 458 additions and 10 deletions
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77
src/test/java/org/springframework/data/jdbc/core/function/DatabaseClientIntegrationTests.java
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@@ -16,6 +16,7 @@
package org.springframework.data.jdbc.core.function;
import static org.assertj.core.api.Assertions.*;
import static org.springframework.data.domain.Sort.Order.*;
import io.r2dbc.postgresql.PostgresqlConnectionConfiguration;
import io.r2dbc.postgresql.PostgresqlConnectionFactory;
@@ -28,6 +29,8 @@ import org.junit.Before;
import org.junit.ClassRule;
import org.junit.Test;
import org.postgresql.ds.PGSimpleDataSource;
import org.springframework.data.domain.PageRequest;
import org.springframework.data.domain.Sort;
import org.springframework.data.jdbc.core.function.ExternalDatabase.ProvidedDatabase;
import org.springframework.data.jdbc.core.mapping.Table;
import org.springframework.jdbc.core.JdbcTemplate;
@@ -162,6 +165,80 @@ public class DatabaseClientIntegrationTests {
assertThat(jdbc.queryForMap("SELECT id, name, manual FROM legoset")).containsEntry("id", 42055);
}
@Test
public void select() {
jdbc.execute("INSERT INTO legoset (id, name, manual) VALUES(42055, 'SCHAUFELRADBAGGER', 12)");
DatabaseClient databaseClient = DatabaseClient.create(connectionFactory);
databaseClient.select().from(LegoSet.class) //
.project("id", "name", "manual") //
.orderBy(Sort.by("id")) //
.fetch().all() //
.as(StepVerifier::create) //
.assertNext(actual -> {
assertThat(actual.getId()).isEqualTo(42055);
assertThat(actual.getName()).isEqualTo("SCHAUFELRADBAGGER");
assertThat(actual.getManual()).isEqualTo(12);
}).verifyComplete();
}
@Test
public void selectOrderByIdDesc() {
jdbc.execute("INSERT INTO legoset (id, name, manual) VALUES(42055, 'SCHAUFELRADBAGGER', 12)");
jdbc.execute("INSERT INTO legoset (id, name, manual) VALUES(42064, 'FORSCHUNGSSCHIFF', 13)");
jdbc.execute("INSERT INTO legoset (id, name, manual) VALUES(42068, 'FLUGHAFEN-LÖSCHFAHRZEUG', 13)");
DatabaseClient databaseClient = DatabaseClient.create(connectionFactory);
databaseClient.select().from(LegoSet.class) //
.orderBy(Sort.by(desc("id"))) //
.fetch().all() //
.map(LegoSet::getId) //
.as(StepVerifier::create) //
.expectNext(42068, 42064, 42055) //
.verifyComplete();
}
@Test
public void selectOrderPaged() {
jdbc.execute("INSERT INTO legoset (id, name, manual) VALUES(42055, 'SCHAUFELRADBAGGER', 12)");
jdbc.execute("INSERT INTO legoset (id, name, manual) VALUES(42064, 'FORSCHUNGSSCHIFF', 13)");
jdbc.execute("INSERT INTO legoset (id, name, manual) VALUES(42068, 'FLUGHAFEN-LÖSCHFAHRZEUG', 13)");
DatabaseClient databaseClient = DatabaseClient.create(connectionFactory);
databaseClient.select().from(LegoSet.class) //
.orderBy(Sort.by(desc("id"))) //
.page(PageRequest.of(1, 1)).fetch().all() //
.map(LegoSet::getId) //
.as(StepVerifier::create) //
.expectNext(42064) //
.verifyComplete();
}
@Test
public void selectTypedLater() {
jdbc.execute("INSERT INTO legoset (id, name, manual) VALUES(42055, 'SCHAUFELRADBAGGER', 12)");
jdbc.execute("INSERT INTO legoset (id, name, manual) VALUES(42064, 'FORSCHUNGSSCHIFF', 13)");
jdbc.execute("INSERT INTO legoset (id, name, manual) VALUES(42068, 'FLUGHAFEN-LÖSCHFAHRZEUG', 13)");
DatabaseClient databaseClient = DatabaseClient.create(connectionFactory);
databaseClient.select().from("legoset") //
.orderBy(Sort.by(desc("id"))) //
.as(LegoSet.class) //
.fetch().all() //
.map(LegoSet::getId) //
.as(StepVerifier::create) //
.expectNext(42068, 42064, 42055) //
.verifyComplete();
}
@Data
@Table("legoset")
static class LegoSet {