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Merge Java 8 samples into basic one.

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This commit is contained in:
Mark Paluch
2021-04-28 10:57:59 +02:00
parent 20dfd398c8
commit b44dc3dea1
24 changed files with 44 additions and 286 deletions
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6
cassandra/java8/src/main/java/example/springdata/cassandra/java8/CassandraConfiguration.java → cassandra/example/src/main/java/example/springdata/cassandra/streamoptional/CassandraConfiguration.java
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@@ -1,11 +1,11 @@
/*
* Copyright 2016-2021 the original author or authors.
* Copyright 2021 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
*
* https://www.apache.org/licenses/LICENSE-2.0
* 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,
@@ -13,7 +13,7 @@
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package example.springdata.cassandra.java8;
package example.springdata.cassandra.streamoptional;
import org.springframework.boot.autoconfigure.SpringBootApplication;

6
cassandra/java8/src/main/java/example/springdata/cassandra/java8/Order.java → cassandra/example/src/main/java/example/springdata/cassandra/streamoptional/Order.java
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@@ -1,11 +1,11 @@
/*
* Copyright 2016-2021 the original author or authors.
* Copyright 2021 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
*
* https://www.apache.org/licenses/LICENSE-2.0
* 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,
@@ -13,7 +13,7 @@
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package example.springdata.cassandra.java8;
package example.springdata.cassandra.streamoptional;
import lombok.AllArgsConstructor;
import lombok.Data;

7
cassandra/java8/src/main/java/example/springdata/cassandra/java8/OrderRepository.java → cassandra/example/src/main/java/example/springdata/cassandra/streamoptional/OrderRepository.java
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@@ -1,11 +1,11 @@
/*
* Copyright 2016-2021 the original author or authors.
* Copyright 2021 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
*
* https://www.apache.org/licenses/LICENSE-2.0
* 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,
@@ -13,12 +13,11 @@
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package example.springdata.cassandra.java8;
package example.springdata.cassandra.streamoptional;
import java.time.LocalDate;
import java.time.ZoneId;
import org.springframework.data.cassandra.core.mapping.CassandraType;
import org.springframework.data.cassandra.repository.Query;
import org.springframework.data.repository.Repository;

6
cassandra/java8/src/main/java/example/springdata/cassandra/java8/Person.java → cassandra/example/src/main/java/example/springdata/cassandra/streamoptional/Person.java
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@@ -1,11 +1,11 @@
/*
* Copyright 2016-2021 the original author or authors.
* Copyright 2021 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
*
* https://www.apache.org/licenses/LICENSE-2.0
* 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,
@@ -14,7 +14,7 @@
* limitations under the License.
*/
package example.springdata.cassandra.java8;
package example.springdata.cassandra.streamoptional;
import lombok.AllArgsConstructor;
import lombok.Data;

6
cassandra/java8/src/main/java/example/springdata/cassandra/java8/PersonRepository.java → cassandra/example/src/main/java/example/springdata/cassandra/streamoptional/PersonRepository.java
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@@ -1,11 +1,11 @@
/*
* Copyright 2016-2021 the original author or authors.
* Copyright 2021 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
*
* https://www.apache.org/licenses/LICENSE-2.0
* 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,
@@ -13,7 +13,7 @@
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package example.springdata.cassandra.java8;
package example.springdata.cassandra.streamoptional;
import java.util.Optional;
import java.util.stream.Stream;

20
cassandra/example/src/main/java/example/springdata/cassandra/streamoptional/package-info.java Normal file
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@@ -0,0 +1,20 @@
/*
* Copyright 2021 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 showing Java 8 features.
*/
package example.springdata.cassandra.streamoptional;

8
cassandra/java8/src/test/java/example/springdata/cassandra/java8/Jsr310IntegrationTests.java → cassandra/example/src/test/java/example/springdata/cassandra/streamoptional/Jsr310IntegrationTests.java
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@@ -1,11 +1,11 @@
/*
* Copyright 2016-2021 the original author or authors.
* Copyright 2021 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
*
* https://www.apache.org/licenses/LICENSE-2.0
* 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,
@@ -13,9 +13,7 @@
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package example.springdata.cassandra.java8;
import static org.assertj.core.api.Assertions.*;
package example.springdata.cassandra.streamoptional;
import example.springdata.cassandra.util.CassandraKeyspace;

10
cassandra/java8/src/test/java/example/springdata/cassandra/java8/Java8IntegrationTests.java → cassandra/example/src/test/java/example/springdata/cassandra/streamoptional/StreamOptionalIntegrationTests.java
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@@ -1,11 +1,11 @@
/*
* Copyright 2016-2021 the original author or authors.
* Copyright 2021 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
*
* https://www.apache.org/licenses/LICENSE-2.0
* 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,
@@ -13,7 +13,7 @@
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package example.springdata.cassandra.java8;
package example.springdata.cassandra.streamoptional;
import static org.assertj.core.api.Assertions.*;
@@ -30,13 +30,13 @@ import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
/**
* Integration test to show the usage of Java 8 features with Spring Data Cassandra.
* Integration test to show the usage of Java {@link Stream} and {@link Optional} features with Spring Data Cassandra.
*
* @author Mark Paluch
*/
@CassandraKeyspace
@SpringBootTest(classes = CassandraConfiguration.class)
class Java8IntegrationTests {
class StreamOptionalIntegrationTests {
@Autowired PersonRepository repository;

20
cassandra/java8/README.md
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@@ -1,20 +0,0 @@
# Spring Data Cassandra - Java 8 examples
This project contains samples of Java 8 specific features of Spring Data (Cassandra).
## Support for JDK 8's `Stream` for repository methods
Repository methods can use a Java 8 `Stream` as a return type which will cause the reading of the results and the to-object-conversion of rows to happen while iterating over the stream.
```java
public interface PersonRepository extends CrudRepository<Person, String> {
@Override
List<Person> findAll();
// Derived query method returning a Java 8 Stream
Stream<Person> findAll();
}
```
The test cases in `PersonRepositoryIntegrationTest` oppose a plain `List` based query method with one that uses a `Stream` and shows how the former pulls all data into memory first and the iteration is done over the pre-populated list. The execution of the `Stream`-based method in contrast shows that the individual elements are read and converted while iterating the stream.

26
cassandra/java8/pom.xml
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@@ -1,26 +0,0 @@
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.data.examples</groupId>
<artifactId>spring-data-cassandra-examples</artifactId>
<version>2.0.0.BUILD-SNAPSHOT</version>
<relativePath>../pom.xml</relativePath>
</parent>
<artifactId>spring-data-cassandra-java8</artifactId>
<name>Spring Data Cassandra - Java 8 specific features</name>
<dependencies>
<dependency>
<groupId>${project.groupId}</groupId>
<artifactId>spring-data-cassandra-example-utils</artifactId>
<version>${project.version}</version>
<scope>test</scope>
</dependency>
</dependencies>
</project>

4
cassandra/java8/src/main/java/example/springdata/cassandra/java8/package-info.java
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@@ -1,4 +0,0 @@
/**
* Package showing Java 8 features.
*/
package example.springdata.cassandra.java8;

3
cassandra/java8/src/main/resources/application.properties
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@@ -1,3 +0,0 @@
spring.data.cassandra.keyspace-name=example
spring.data.cassandra.schema-action=recreate
spring.data.cassandra.local-datacenter=datacenter1

1
cassandra/pom.xml
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@@ -19,7 +19,6 @@
<modules>
<module>util</module>
<module>example</module>
<module>java8</module>
<module>kotlin</module>
<module>reactive</module>
</modules>