Hmmmmm

Author: derjust

src/main/java/org/socialsignin/spring/data/dynamodb/query/Query.java

@@ -28,16 +28,16 @@ public interface Query<T> {
      * @throws IllegalStateException if called for a Java
      *    Persistence query language UPDATE or DELETE statement
      */
-    public List<T> getResultList();
+    List<T> getResultList();
 
     /**
      * Execute a SELECT query that returns a single result.
      * @return the result
      */
-    public T getSingleResult();
+    T getSingleResult();
 
 
-    public void setScanEnabled(boolean scanEnabled);
-    public void setScanCountEnabled(boolean scanCountEnabled);
+    void setScanEnabled(boolean scanEnabled);
+    void setScanCountEnabled(boolean scanCountEnabled);
 
 }

src/main/java/org/socialsignin/spring/data/dynamodb/repository/query/DynamoDBQueryCriteria.java

@@ -25,6 +25,10 @@
  */
 public interface DynamoDBQueryCriteria<T, ID> {
 
+	default DynamoDBQueryCriteria<T, ID> NULL() {
+		return new NullDynamoDBQueryCriteria();
+	}
+
 	DynamoDBQueryCriteria<T, ID> withSingleValueCriteria(String propertyName, ComparisonOperator comparisonOperator,
 			Object value, Class<?> type);
 

src/main/java/org/socialsignin/spring/data/dynamodb/repository/query/NullDynamoDBQueryCriteria.java

@@ -0,0 +1,96 @@
+package org.socialsignin.spring.data.dynamodb.repository.query;
+
+import com.amazonaws.services.dynamodbv2.model.ComparisonOperator;
+import org.socialsignin.spring.data.dynamodb.core.DynamoDBOperations;
+import org.socialsignin.spring.data.dynamodb.query.Query;
+import org.springframework.data.domain.Sort;
+
+import java.util.Collections;
+import java.util.List;
+
+public class NullDynamoDBQueryCriteria<T, ID> implements DynamoDBQueryCriteria<T, ID> {
+
+    private static final Query<Object> EMPTY_QUERY_RESULT = new Query<Object>() {
+        @Override
+        public List<Object> getResultList() {
+            return Collections.emptyList();
+        }
+
+        @Override
+        public Object getSingleResult() {
+            return null;
+        }
+
+        @Override
+        public void setScanEnabled(boolean scanEnabled) {
+        }
+
+        @Override
+        public void setScanCountEnabled(boolean scanCountEnabled) {
+        }
+    };
+
+    private static final Query<Long> ZERO_QUERY_RESULT = new Query<Long>() {
+        private final Long ZERO = Long.valueOf(0L);
+        private final List<Long> ZERO_LIST = Collections.singletonList(ZERO);
+
+        @Override
+        public List<Long> getResultList() {
+            return ZERO_LIST;
+        }
+
+        @Override
+        public Long getSingleResult() {
+            return ZERO;
+        }
+
+        @Override
+        public void setScanEnabled(boolean scanEnabled) {
+        }
+
+        @Override
+        public void setScanCountEnabled(boolean scanCountEnabled) {
+        }
+    };
+
+
+    @Override
+    public DynamoDBQueryCriteria<T, ID> withSingleValueCriteria(String propertyName, ComparisonOperator comparisonOperator, Object value, Class<?> type) {
+        return this;
+    }
+
+    @Override
+    public DynamoDBQueryCriteria<T, ID> withNoValuedCriteria(String segment, ComparisonOperator null1) {
+        return this;
+    }
+
+    @Override
+    public DynamoDBQueryCriteria<T, ID> withPropertyEquals(String segment, Object next, Class<?> type) {
+        return this;
+    }
+
+    @Override
+    public DynamoDBQueryCriteria<T, ID> withPropertyIn(String segment, Iterable<?> o, Class<?> type) {
+        return this;
+    }
+
+    @Override
+    public DynamoDBQueryCriteria<T, ID> withPropertyBetween(String segment, Object value1, Object value2, Class<?> type) {
+        return this;
+    }
+
+    @Override
+    public DynamoDBQueryCriteria<T, ID> withSort(Sort sort) {
+        return this;
+    }
+
+    @Override
+    public Query<T> buildQuery(DynamoDBOperations dynamoDBOperations) {
+        return (Query<T>)EMPTY_QUERY_RESULT;
+    }
+
+    @Override
+    public Query<Long> buildCountQuery(DynamoDBOperations dynamoDBOperations, boolean pageQuery) {
+        return ZERO_QUERY_RESULT;
+    }
+}

src/test/java/org/socialsignin/spring/data/dynamodb/domain/sample/RepositoryFindTest.java

@@ -28,6 +28,7 @@
 import org.springframework.test.context.ContextConfiguration;
 import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
 
+import java.time.Instant;
 import java.util.List;
 
 @RunWith(SpringJUnit4ClassRunner.class)
@@ -51,7 +52,11 @@ public void setUp() {
 
     @Test
     public void testFindAll() {
-        List<User> actual = userRepository.findAllByOrderByName();
+        //List<User> actual1 = userRepository.findByLeaveDate(Instant.now());
+
+        List<User> actual3 = userRepository.findByNameOrderByNameAsc("x");
+
+//        List<User> actual = userRepository.findAllByOrderByName();
     }
 }
 

src/test/java/org/socialsignin/spring/data/dynamodb/domain/sample/UserRepository.java

@@ -31,7 +31,10 @@ public interface UserRepository extends Repository<User, String> {
 	List<User> findByLeaveDate(Instant leaveDate);
 
 	@EnableScan
-	List<User> findAllByOrderByName();
+	List<User> findByNameOrderByNameAsc(String name);
+
+	@EnableScan
+	List<User> findAll();
 
 	@EnableScan
 	Optional<User> findByName(String name);