Make reactive session settings configurable through setters

Resolves #11

src/main/java/org/springframework/session/data/mongo/ReactiveMongoOperationsSessionRepository.java

@@ -145,10 +145,18 @@ public class ReactiveMongoOperationsSessionRepository implements ReactorSessionR
 		this.maxInactiveIntervalInSeconds = maxInactiveIntervalInSeconds;
 	}
 
+	public Integer getMaxInactiveIntervalInSeconds() {
+		return maxInactiveIntervalInSeconds;
+	}
+
 	public void setCollectionName(String collectionName) {
 		this.collectionName = collectionName;
 	}
 
+	public String getCollectionName() {
+		return collectionName;
+	}
+
 	public MongoOperations getBlockingMongoOperations() {
 		return this.blockingMongoOperations;
 	}

src/main/java/org/springframework/session/data/mongo/config/annotation/web/reactive/ReactiveMongoWebSessionConfiguration.java

@@ -93,4 +93,19 @@ public class ReactiveMongoWebSessionConfiguration implements EmbeddedValueResolv
 	public void setEmbeddedValueResolver(StringValueResolver embeddedValueResolver) {
 		this.embeddedValueResolver = embeddedValueResolver;
 	}
+	public Integer getMaxInactiveIntervalInSeconds() {
+		return maxInactiveIntervalInSeconds;
+	}
+
+	public void setMaxInactiveIntervalInSeconds(Integer maxInactiveIntervalInSeconds) {
+		this.maxInactiveIntervalInSeconds = maxInactiveIntervalInSeconds;
+	}
+
+	public String getCollectionName() {
+		return collectionName;
+	}
+
+	public void setCollectionName(String collectionName) {
+		this.collectionName = collectionName;
+	}
 }

src/test/java/org/springframework/session/data/mongo/config/annotation/web/reactive/ReactiveMongoWebSessionConfigurationTest.java

@@ -17,6 +17,8 @@ package org.springframework.session.data.mongo.config.annotation.web.reactive;
 
 import static org.assertj.core.api.Assertions.*;
 import static org.mockito.BDDMockito.*;
+import static org.mockito.BDDMockito.times;
+import static org.mockito.BDDMockito.verify;
 import static org.mockito.Mockito.any;
 import static org.mockito.Mockito.mock;
 
@@ -155,6 +157,18 @@ public class ReactiveMongoWebSessionConfigurationTest {
 		verify(indexOperations, times(1)).ensureIndex(any());
 	}
 
+	@Test
+	public void overrideCollectionAndInactiveIntervalThroughConfigurationOptions() {
+
+		this.context = new AnnotationConfigApplicationContext();
+		this.context.register(CustomizedReactiveConfiguration.class);
+		this.context.refresh();
+
+		ReactiveMongoOperationsSessionRepository repository = this.context.getBean(ReactiveMongoOperationsSessionRepository.class);
+		assertThat(repository.getCollectionName()).isEqualTo("custom-collection");
+		assertThat(repository.getMaxInactiveIntervalInSeconds()).isEqualTo(123);
+	}
+
 	/**
 	 * Reflectively extract the {@link AbstractMongoSessionConverter} from the {@link ReactiveMongoOperationsSessionRepository}.
 	 * This is to avoid expanding the surface area of the API.
@@ -240,4 +254,19 @@ public class ReactiveMongoWebSessionConfigurationTest {
 			return mongoOperations;
 		}
 	}
+
+	@EnableSpringWebSession
+	static class CustomizedReactiveConfiguration extends ReactiveMongoWebSessionConfiguration {
+
+		@Bean
+		ReactiveMongoOperations reactiveMongoOperations() {
+			return mock(ReactiveMongoOperations.class);
+		}
+
+		public CustomizedReactiveConfiguration() {
+
+			this.setCollectionName("custom-collection");
+			this.setMaxInactiveIntervalInSeconds(123);
+		}
+	}
 }