Move querydsl support into sub-package

Following the addition of annotated DataFetcher's the `~.data.method`
with #90, it makes sense to have querydsl support at the same level
in a sibling package.

graphql-spring-boot-starter/src/main/java/org/springframework/graphql/boot/data/GraphQlWebFluxQuerydslAutoConfiguration.java

@@ -34,7 +34,7 @@ import org.springframework.data.querydsl.QuerydslPredicateExecutor;
 import org.springframework.data.querydsl.ReactiveQuerydslPredicateExecutor;
 import org.springframework.graphql.boot.GraphQlAutoConfiguration;
 import org.springframework.graphql.boot.GraphQlSourceBuilderCustomizer;
-import org.springframework.graphql.data.QuerydslDataFetcher;
+import org.springframework.graphql.data.querydsl.QuerydslDataFetcher;
 import org.springframework.graphql.execution.GraphQlSource;
 
 /**

graphql-spring-boot-starter/src/main/java/org/springframework/graphql/boot/data/GraphQlWebMvcQuerydslAutoConfiguration.java

@@ -34,7 +34,7 @@ import org.springframework.data.querydsl.QuerydslPredicateExecutor;
 import org.springframework.data.querydsl.ReactiveQuerydslPredicateExecutor;
 import org.springframework.graphql.boot.GraphQlAutoConfiguration;
 import org.springframework.graphql.boot.GraphQlSourceBuilderCustomizer;
-import org.springframework.graphql.data.QuerydslDataFetcher;
+import org.springframework.graphql.data.querydsl.QuerydslDataFetcher;
 import org.springframework.graphql.execution.GraphQlSource;
 
 /**

spring-graphql/src/main/java/org/springframework/graphql/data/method/package-info.java

@@ -1,7 +1,24 @@
-/**
- * Support for DataFetcher's based on methods in a handler class.
+/*
+ * Copyright 2020-2021 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
+ *
+ * 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.
  */
 
+/**
+ * Support for DataFetcher's based on handler methods typically annotated with
+ * {@link org.springframework.graphql.data.method.annotation.SchemaMapping}
+ * annotations.
+ */
 @NonNullApi
 @NonNullFields
 package org.springframework.graphql.data.method;

spring-graphql/src/main/java/org/springframework/graphql/data/package-info.java

@@ -15,8 +15,7 @@
  */
 
 /**
- * Spring Data support for GraphQL, including built-in Querydsl
- * {@link graphql.schema.DataFetcher} implementations.
+ * Support for various ways to implement {@link graphql.schema.DataFetcher}s.
  */
 @NonNullApi
 @NonNullFields

spring-graphql/src/main/java/org/springframework/graphql/data/querydsl/DtoInstantiatingConverter.java

@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-package org.springframework.graphql.data;
+package org.springframework.graphql.data.querydsl;
 
 import org.springframework.core.convert.converter.Converter;
 import org.springframework.data.mapping.PersistentEntity;

spring-graphql/src/main/java/org/springframework/graphql/data/querydsl/DtoMappingContext.java

@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-package org.springframework.graphql.data;
+package org.springframework.graphql.data.querydsl;
 
 import org.springframework.data.mapping.Association;
 import org.springframework.data.mapping.PersistentEntity;

spring-graphql/src/main/java/org/springframework/graphql/data/querydsl/QuerydslDataFetcher.java

@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-package org.springframework.graphql.data;
+package org.springframework.graphql.data.querydsl;
 
 import java.lang.reflect.Type;
 import java.util.Collections;
@@ -63,6 +63,7 @@ import org.springframework.data.repository.core.support.DefaultRepositoryMetadat
 import org.springframework.data.util.ClassTypeInformation;
 import org.springframework.data.util.Streamable;
 import org.springframework.data.util.TypeInformation;
+import org.springframework.graphql.data.GraphQlRepository;
 import org.springframework.lang.Nullable;
 import org.springframework.util.Assert;
 import org.springframework.util.LinkedMultiValueMap;

spring-graphql/src/main/java/org/springframework/graphql/data/querydsl/package-info.java

@@ -0,0 +1,26 @@
+/*
+ * Copyright 2020-2021 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
+ *
+ * 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.
+ */
+
+/**
+ * Support for {@link graphql.schema.DataFetcher}s backed by Querydsl based
+ * Spring Data repositories.
+ */
+@NonNullApi
+@NonNullFields
+package org.springframework.graphql.data.querydsl;
+
+import org.springframework.lang.NonNullApi;
+import org.springframework.lang.NonNullFields;

spring-graphql/src/test/java/org/springframework/graphql/data/querydsl/Book.java

@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-package org.springframework.graphql.data;
+package org.springframework.graphql.data.querydsl;
 
 public class Book {
 

spring-graphql/src/test/java/org/springframework/graphql/data/querydsl/QBook.java

@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-package org.springframework.graphql.data;
+package org.springframework.graphql.data.querydsl;
 
 import com.querydsl.core.types.Path;
 import com.querydsl.core.types.PathMetadata;

spring-graphql/src/test/java/org/springframework/graphql/data/querydsl/QuerydslDataFetcherTests.java

@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-package org.springframework.graphql.data;
+package org.springframework.graphql.data.querydsl;
 
 import java.net.URI;
 import java.util.Arrays;
@@ -37,6 +37,7 @@ import org.springframework.data.querydsl.QuerydslPredicateExecutor;
 import org.springframework.data.querydsl.ReactiveQuerydslPredicateExecutor;
 import org.springframework.data.querydsl.binding.QuerydslBinderCustomizer;
 import org.springframework.data.repository.Repository;
+import org.springframework.graphql.data.GraphQlRepository;
 import org.springframework.graphql.execution.ExecutionGraphQlService;
 import org.springframework.graphql.execution.GraphQlSource;
 import org.springframework.graphql.web.WebGraphQlHandler;