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DATACMNS-940 - Support for Javaslang collections as repository return types.

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Javaslang's collection and map types can now be used on repository query methods and get adapted similarly to nullable wrapper types (like JDK's Optional). Also made TypeInformation infrastructure aware of the map type so that a value type lookup gets handle correctly.
This commit is contained in:
Oliver Gierke
2016-12-12 20:07:37 +01:00
parent c52aba358d
commit a9c3b9f66f
5 changed files with 335 additions and 9 deletions
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31
src/test/java/org/springframework/data/util/ClassTypeInformationUnitTests.java
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@@ -19,6 +19,8 @@ import static org.hamcrest.Matchers.*;
import static org.junit.Assert.*;
import static org.springframework.data.util.ClassTypeInformation.*;
import javaslang.collection.Traversable;
import java.lang.reflect.Method;
import java.util.Calendar;
import java.util.Collection;
@@ -106,7 +108,7 @@ public class ClassTypeInformationUnitTests {
property = information.getProperty("rawSet");
assertEquals(Set.class, property.getType());
assertThat(property.getComponentType().getType(), is(Matchers.<Class<?>>equalTo(Object.class)));
assertThat(property.getComponentType().getType(), is(Matchers.<Class<?>> equalTo(Object.class)));
assertNull(property.getMapValueType());
}
@@ -413,6 +415,29 @@ public class ClassTypeInformationUnitTests {
assertThat(information.getProperty("field").getType(), is(typeCompatibleWith(Nested.class)));
}
/**
* @see DATACMNS-940
*/
@Test
public void detectsJavaslangTraversableComponentType() {
ClassTypeInformation<SampleTraversable> information = ClassTypeInformation.from(SampleTraversable.class);
assertThat(information.getComponentType().getType(), is(typeCompatibleWith(Integer.class)));
}
/**
* @see DATACMNS-940
*/
@Test
public void detectsJavaslangMapComponentAndValueType() {
ClassTypeInformation<SampleMap> information = ClassTypeInformation.from(SampleMap.class);
assertThat(information.getComponentType().getType(), is(typeCompatibleWith(String.class)));
assertThat(information.getMapValueType().getType(), is(typeCompatibleWith(Integer.class)));
}
static class StringMapContainer extends MapContainer<String> {
}
@@ -611,4 +636,8 @@ public class ClassTypeInformationUnitTests {
static class Nested extends SomeType<String> {}
static class Concrete extends SomeType<Nested> {}
static interface SampleTraversable extends Traversable<Integer> {}
static interface SampleMap extends javaslang.collection.Map<String, Integer> {}
}