diff --git a/spring-all/src/main/java/org/baeldung/order/Average.java b/spring-all/src/main/java/org/baeldung/order/Average.java new file mode 100644 index 0000000000..d1d9117fb1 --- /dev/null +++ b/spring-all/src/main/java/org/baeldung/order/Average.java @@ -0,0 +1,15 @@ +package org.baeldung.order; + +import org.springframework.core.Ordered; +import org.springframework.core.annotation.Order; +import org.springframework.stereotype.Component; + +@Component +@Order(Ordered.LOWEST_PRECEDENCE) +public class Average implements Rating { + + @Override + public int getRating() { + return 3; + } +} diff --git a/spring-all/src/main/java/org/baeldung/order/Excellent.java b/spring-all/src/main/java/org/baeldung/order/Excellent.java new file mode 100644 index 0000000000..e5f125593f --- /dev/null +++ b/spring-all/src/main/java/org/baeldung/order/Excellent.java @@ -0,0 +1,14 @@ +package org.baeldung.order; + +import org.springframework.stereotype.Component; +import org.springframework.core.annotation.Order; + +@Component +@Order(1) +public class Excellent implements Rating { + + @Override + public int getRating() { + return 1; + } +} diff --git a/spring-all/src/main/java/org/baeldung/order/Good.java b/spring-all/src/main/java/org/baeldung/order/Good.java new file mode 100644 index 0000000000..3dd9852cc4 --- /dev/null +++ b/spring-all/src/main/java/org/baeldung/order/Good.java @@ -0,0 +1,14 @@ +package org.baeldung.order; + +import org.springframework.core.annotation.Order; +import org.springframework.stereotype.Component; + +@Component +@Order(2) +public class Good implements Rating { + + @Override + public int getRating() { + return 2; + } +} diff --git a/spring-all/src/main/java/org/baeldung/order/Rating.java b/spring-all/src/main/java/org/baeldung/order/Rating.java new file mode 100644 index 0000000000..dd0391a3d9 --- /dev/null +++ b/spring-all/src/main/java/org/baeldung/order/Rating.java @@ -0,0 +1,6 @@ +package org.baeldung.order; + +public interface Rating { + + int getRating(); +} diff --git a/spring-all/src/test/java/org/baeldung/order/RatingRetrieverUnitTest.java b/spring-all/src/test/java/org/baeldung/order/RatingRetrieverUnitTest.java new file mode 100644 index 0000000000..a624f757fc --- /dev/null +++ b/spring-all/src/test/java/org/baeldung/order/RatingRetrieverUnitTest.java @@ -0,0 +1,37 @@ +package org.baeldung.order; + + +import static org.hamcrest.CoreMatchers.equalTo; +import static org.hamcrest.CoreMatchers.is; +import static org.junit.Assert.assertThat; + +import java.util.List; + +import org.junit.Test; +import org.junit.runner.RunWith; +import org.springframework.beans.factory.annotation.Autowired; +import org.springframework.context.annotation.ComponentScan; +import org.springframework.context.annotation.Configuration; +import org.springframework.test.context.ContextConfiguration; +import org.springframework.test.context.junit4.SpringJUnit4ClassRunner; +import org.springframework.test.context.support.AnnotationConfigContextLoader; + +@RunWith(SpringJUnit4ClassRunner.class) +@ContextConfiguration(loader = AnnotationConfigContextLoader.class) +public class RatingRetrieverUnitTest { + + @Configuration + @ComponentScan(basePackages = {"org.baeldung.order"}) + static class ContextConfiguration {} + + @Autowired + private List ratings; + + @Test + public void givenOrderOnComponents_whenInjected_thenAutowireByOrderValue() { + assertThat(ratings.get(0).getRating(), is(equalTo(1))); + assertThat(ratings.get(1).getRating(), is(equalTo(2))); + assertThat(ratings.get(2).getRating(), is(equalTo(3))); + } + +}