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danhaywood pushed a commit to branch CAUSEWAY-3676
in repository https://gitbox.apache.org/repos/asf/causeway.git

commit 64bb7e5cd6aed90907d76e12f872acd31b0b6d1e
Author: danhaywood <[email protected]>
AuthorDate: Mon Feb 12 21:54:36 2024 +0000

    CAUSEWAY-3676: renames data fetcher methods consistently
---
 persistence/jpa/adoc/modules/ROOT/pages/weaving.adoc  |  2 +-
 .../viewer/graphql/model/domain/GqlvActionParam.java  |  8 +++++++-
 .../model/domain/GqlvActionParamAutoComplete.java     |  4 ++--
 .../graphql/model/domain/GqlvActionParamChoices.java  |  4 ++--
 .../graphql/model/domain/GqlvActionParamDefault.java  |  4 ++--
 .../graphql/model/domain/GqlvActionParamDisabled.java |  4 ++--
 .../graphql/model/domain/GqlvActionParamHidden.java   |  4 ++--
 .../graphql/model/domain/GqlvActionParamValidate.java |  4 ++--
 .../viewer/graphql/model/domain/GqlvActionParams.java |  7 ++++++-
 .../graphql/model/domain/GqlvActionValidity.java      |  4 ++--
 .../graphql/model/domain/GqlvAssociationGet.java      |  4 ++--
 .../viewer/graphql/model/domain/GqlvCollection.java   |  9 ++++++++-
 .../viewer/graphql/model/domain/GqlvDomainObject.java | 13 ++++++++-----
 .../graphql/model/domain/GqlvDomainService.java       |  8 +++++++-
 .../graphql/model/domain/GqlvMemberDisabled.java      |  4 ++--
 .../viewer/graphql/model/domain/GqlvMemberHidden.java |  4 ++--
 .../viewer/graphql/model/domain/GqlvMeta.java         | 19 +++++++++++++++----
 .../graphql/model/domain/GqlvMutationForAction.java   |  4 ++--
 .../graphql/model/domain/GqlvMutationForProperty.java |  4 ++--
 .../viewer/graphql/model/domain/GqlvProperty.java     |  8 +++++++-
 .../model/domain/GqlvPropertyAutoComplete.java        |  4 ++--
 .../graphql/model/domain/GqlvPropertyChoices.java     |  4 ++--
 .../viewer/graphql/model/domain/GqlvPropertySet.java  |  4 ++--
 .../graphql/model/domain/GqlvPropertyValidate.java    |  4 ++--
 .../viewer/graphql/model/domain/GqlvScenario.java     | 12 +++++++-----
 .../graphql/model/domain/GqlvScenarioGiven.java       |  6 +++++-
 26 files changed, 103 insertions(+), 53 deletions(-)

diff --git a/persistence/jpa/adoc/modules/ROOT/pages/weaving.adoc 
b/persistence/jpa/adoc/modules/ROOT/pages/weaving.adoc
index 938fb221b5..62c3da1348 100644
--- a/persistence/jpa/adoc/modules/ROOT/pages/weaving.adoc
+++ b/persistence/jpa/adoc/modules/ROOT/pages/weaving.adoc
@@ -70,7 +70,7 @@ As well as setting the above configuration options, it's also 
neceesary to run t
 +
 [source,bash]
 ----
-mvn dependency:get -DgroupId=org.springframework 
-DartifactId=spring-instrument -Dversion=XXX
+mvn dependency:fetchData -DgroupId=org.springframework 
-DartifactId=spring-instrument -Dversion=XXX
 ----
 =
 changing "XXX" to the value that `${spring-framework.version}` resolves to, 
from the Causeway parent `pom.xml`.
diff --git 
a/viewers/graphql/model/src/main/java/org/apache/causeway/viewer/graphql/model/domain/GqlvActionParam.java
 
b/viewers/graphql/model/src/main/java/org/apache/causeway/viewer/graphql/model/domain/GqlvActionParam.java
index f1d65abafe..70117e7009 100644
--- 
a/viewers/graphql/model/src/main/java/org/apache/causeway/viewer/graphql/model/domain/GqlvActionParam.java
+++ 
b/viewers/graphql/model/src/main/java/org/apache/causeway/viewer/graphql/model/domain/GqlvActionParam.java
@@ -30,6 +30,7 @@ import 
org.apache.causeway.core.metamodel.object.ManagedObject;
 import org.apache.causeway.core.metamodel.spec.ObjectSpecification;
 import org.apache.causeway.core.metamodel.spec.feature.ObjectAction;
 import org.apache.causeway.core.metamodel.spec.feature.ObjectActionParameter;
+import org.apache.causeway.viewer.graphql.model.fetcher.BookmarkedPojo;
 import org.apache.causeway.viewer.graphql.model.types.TypeMapper;
 import org.apache.causeway.viewer.graphql.model.context.Context;
 import org.apache.causeway.viewer.graphql.model.fetcher.BookmarkedPojoFetcher;
@@ -133,7 +134,7 @@ public class GqlvActionParam
     public void addDataFetcher(Parent parent) {
         context.codeRegistryBuilder.dataFetcher(
                 parent.coordinatesFor(getField()),
-                new BookmarkedPojoFetcher(context.bookmarkService));
+                this::fetchData);
 
         hidden.addDataFetcher(this);
         disabled.addDataFetcher(this);
@@ -149,6 +150,11 @@ public class GqlvActionParam
         validate.addDataFetcher(this);
     }
 
+    private Object fetchData(DataFetchingEnvironment dataFetchingEnvironment) {
+        return BookmarkedPojo.sourceFrom(dataFetchingEnvironment, context);
+    }
+
+
 
     @Override
     public void addGqlArguments(ObjectAction objectAction, 
GraphQLFieldDefinition.Builder fieldBuilder, TypeMapper.InputContext 
inputContext, int paramNum) {
diff --git 
a/viewers/graphql/model/src/main/java/org/apache/causeway/viewer/graphql/model/domain/GqlvActionParamAutoComplete.java
 
b/viewers/graphql/model/src/main/java/org/apache/causeway/viewer/graphql/model/domain/GqlvActionParamAutoComplete.java
index a984178339..7a3c554cc3 100644
--- 
a/viewers/graphql/model/src/main/java/org/apache/causeway/viewer/graphql/model/domain/GqlvActionParamAutoComplete.java
+++ 
b/viewers/graphql/model/src/main/java/org/apache/causeway/viewer/graphql/model/domain/GqlvActionParamAutoComplete.java
@@ -81,11 +81,11 @@ package org.apache.causeway.viewer.graphql.model.domain;
      public void addDataFetcher(Parent parent) {
          context.codeRegistryBuilder.dataFetcher(
                  parent.coordinatesFor(getField()),
-                 this::choices
+                 this::fetchData
          );
      }
 
-     private List<Object> choices(final DataFetchingEnvironment 
dataFetchingEnvironment) {
+     private List<Object> fetchData(final DataFetchingEnvironment 
dataFetchingEnvironment) {
 
          val sourcePojo = BookmarkedPojo.sourceFrom(dataFetchingEnvironment);
          val objectSpecification = 
context.specificationLoader.loadSpecification(sourcePojo.getClass());
diff --git 
a/viewers/graphql/model/src/main/java/org/apache/causeway/viewer/graphql/model/domain/GqlvActionParamChoices.java
 
b/viewers/graphql/model/src/main/java/org/apache/causeway/viewer/graphql/model/domain/GqlvActionParamChoices.java
index 97d44acbc8..2398cfa101 100644
--- 
a/viewers/graphql/model/src/main/java/org/apache/causeway/viewer/graphql/model/domain/GqlvActionParamChoices.java
+++ 
b/viewers/graphql/model/src/main/java/org/apache/causeway/viewer/graphql/model/domain/GqlvActionParamChoices.java
@@ -73,11 +73,11 @@ package org.apache.causeway.viewer.graphql.model.domain;
      public void addDataFetcher(Parent parent) {
          context.codeRegistryBuilder.dataFetcher(
                  parent.coordinatesFor(getField()),
-                 this::choices
+                 this::fetchData
          );
      }
 
-     private List<Object> choices(final DataFetchingEnvironment 
dataFetchingEnvironment) {
+     private List<Object> fetchData(final DataFetchingEnvironment 
dataFetchingEnvironment) {
 
          val sourcePojo = BookmarkedPojo.sourceFrom(dataFetchingEnvironment);
          val objectSpecification = 
context.specificationLoader.loadSpecification(sourcePojo.getClass());
diff --git 
a/viewers/graphql/model/src/main/java/org/apache/causeway/viewer/graphql/model/domain/GqlvActionParamDefault.java
 
b/viewers/graphql/model/src/main/java/org/apache/causeway/viewer/graphql/model/domain/GqlvActionParamDefault.java
index 482cdeb3c3..af5ca69297 100644
--- 
a/viewers/graphql/model/src/main/java/org/apache/causeway/viewer/graphql/model/domain/GqlvActionParamDefault.java
+++ 
b/viewers/graphql/model/src/main/java/org/apache/causeway/viewer/graphql/model/domain/GqlvActionParamDefault.java
@@ -70,11 +70,11 @@ package org.apache.causeway.viewer.graphql.model.domain;
      public void addDataFetcher(Parent parent) {
          context.codeRegistryBuilder.dataFetcher(
                  parent.coordinatesFor(getField()),
-                 this::default_
+                 this::fetchData
          );
      }
 
-     private Object default_(final DataFetchingEnvironment 
dataFetchingEnvironment) {
+     private Object fetchData(final DataFetchingEnvironment 
dataFetchingEnvironment) {
 
          val sourcePojo = BookmarkedPojo.sourceFrom(dataFetchingEnvironment);
          val objectSpecification = 
context.specificationLoader.loadSpecification(sourcePojo.getClass());
diff --git 
a/viewers/graphql/model/src/main/java/org/apache/causeway/viewer/graphql/model/domain/GqlvActionParamDisabled.java
 
b/viewers/graphql/model/src/main/java/org/apache/causeway/viewer/graphql/model/domain/GqlvActionParamDisabled.java
index f31e8a9a03..ee8dcb76f1 100644
--- 
a/viewers/graphql/model/src/main/java/org/apache/causeway/viewer/graphql/model/domain/GqlvActionParamDisabled.java
+++ 
b/viewers/graphql/model/src/main/java/org/apache/causeway/viewer/graphql/model/domain/GqlvActionParamDisabled.java
@@ -61,11 +61,11 @@ public class GqlvActionParamDisabled extends GqlvAbstract {
     public void addDataFetcher(Parent parent) {
         context.codeRegistryBuilder.dataFetcher(
                 parent.coordinatesFor(getField()),
-                this::disabled
+                this::fetchData
         );
     }
 
-    private String disabled(final DataFetchingEnvironment 
dataFetchingEnvironment) {
+    private String fetchData(final DataFetchingEnvironment 
dataFetchingEnvironment) {
 
         val sourcePojo = BookmarkedPojo.sourceFrom(dataFetchingEnvironment);
         val objectSpecification = 
context.specificationLoader.loadSpecification(sourcePojo.getClass());
diff --git 
a/viewers/graphql/model/src/main/java/org/apache/causeway/viewer/graphql/model/domain/GqlvActionParamHidden.java
 
b/viewers/graphql/model/src/main/java/org/apache/causeway/viewer/graphql/model/domain/GqlvActionParamHidden.java
index 7c5a32085b..8c2eb259e4 100644
--- 
a/viewers/graphql/model/src/main/java/org/apache/causeway/viewer/graphql/model/domain/GqlvActionParamHidden.java
+++ 
b/viewers/graphql/model/src/main/java/org/apache/causeway/viewer/graphql/model/domain/GqlvActionParamHidden.java
@@ -60,11 +60,11 @@ public class GqlvActionParamHidden extends GqlvAbstract {
     public void addDataFetcher(Parent parent) {
         context.codeRegistryBuilder.dataFetcher(
                 parent.coordinatesFor(getField()),
-                this::hidden
+                this::fetchData
         );
     }
 
-    private boolean hidden(final DataFetchingEnvironment 
dataFetchingEnvironment) {
+    private boolean fetchData(final DataFetchingEnvironment 
dataFetchingEnvironment) {
 
         val sourcePojo = BookmarkedPojo.sourceFrom(dataFetchingEnvironment);
 
diff --git 
a/viewers/graphql/model/src/main/java/org/apache/causeway/viewer/graphql/model/domain/GqlvActionParamValidate.java
 
b/viewers/graphql/model/src/main/java/org/apache/causeway/viewer/graphql/model/domain/GqlvActionParamValidate.java
index c7b7e9d029..51f1bbd5f0 100644
--- 
a/viewers/graphql/model/src/main/java/org/apache/causeway/viewer/graphql/model/domain/GqlvActionParamValidate.java
+++ 
b/viewers/graphql/model/src/main/java/org/apache/causeway/viewer/graphql/model/domain/GqlvActionParamValidate.java
@@ -60,11 +60,11 @@ public class GqlvActionParamValidate extends GqlvAbstract {
     public void addDataFetcher(Parent parent) {
         context.codeRegistryBuilder.dataFetcher(
                 parent.coordinatesFor(getField()),
-                this::disabled
+                this::fetchData
         );
     }
 
-    private String disabled(final DataFetchingEnvironment 
dataFetchingEnvironment) {
+    private String fetchData(final DataFetchingEnvironment 
dataFetchingEnvironment) {
 
         val sourcePojo = BookmarkedPojo.sourceFrom(dataFetchingEnvironment);
 
diff --git 
a/viewers/graphql/model/src/main/java/org/apache/causeway/viewer/graphql/model/domain/GqlvActionParams.java
 
b/viewers/graphql/model/src/main/java/org/apache/causeway/viewer/graphql/model/domain/GqlvActionParams.java
index d244db8e64..36ad45b387 100644
--- 
a/viewers/graphql/model/src/main/java/org/apache/causeway/viewer/graphql/model/domain/GqlvActionParams.java
+++ 
b/viewers/graphql/model/src/main/java/org/apache/causeway/viewer/graphql/model/domain/GqlvActionParams.java
@@ -34,6 +34,7 @@ import 
org.apache.causeway.core.metamodel.spec.ObjectSpecification;
 import org.apache.causeway.core.metamodel.spec.feature.ObjectAction;
 import org.apache.causeway.core.metamodel.spec.feature.ObjectActionParameter;
 import org.apache.causeway.viewer.graphql.model.context.Context;
+import org.apache.causeway.viewer.graphql.model.fetcher.BookmarkedPojo;
 import org.apache.causeway.viewer.graphql.model.fetcher.BookmarkedPojoFetcher;
 import 
org.apache.causeway.viewer.graphql.model.mmproviders.ObjectActionProvider;
 import 
org.apache.causeway.viewer.graphql.model.mmproviders.ObjectSpecificationProvider;
@@ -97,12 +98,16 @@ public class GqlvActionParams
     void addDataFetcher(Parent parent) {
         context.codeRegistryBuilder.dataFetcher(
                 parent.coordinatesFor(getField()),
-                new BookmarkedPojoFetcher(context.bookmarkService));
+                this::fetchData);
 
         params.forEach((id, param) -> param.addDataFetcher(this));
     }
 
 
+    private Object fetchData(DataFetchingEnvironment dataFetchingEnvironment) {
+        return BookmarkedPojo.sourceFrom(dataFetchingEnvironment, context);
+    }
+
     @Override
     public void addGqlArguments(
             ObjectAction objectAction, GraphQLFieldDefinition.Builder 
fieldBuilder, TypeMapper.InputContext inputContext, int paramNum) {
diff --git 
a/viewers/graphql/model/src/main/java/org/apache/causeway/viewer/graphql/model/domain/GqlvActionValidity.java
 
b/viewers/graphql/model/src/main/java/org/apache/causeway/viewer/graphql/model/domain/GqlvActionValidity.java
index f2df5e1f76..c48cc939d8 100644
--- 
a/viewers/graphql/model/src/main/java/org/apache/causeway/viewer/graphql/model/domain/GqlvActionValidity.java
+++ 
b/viewers/graphql/model/src/main/java/org/apache/causeway/viewer/graphql/model/domain/GqlvActionValidity.java
@@ -71,11 +71,11 @@ public class GqlvActionValidity extends GqlvAbstract {
     public void addDataFetcher(Parent parent) {
         context.codeRegistryBuilder.dataFetcher(
                 parent.coordinatesFor(getField()),
-                this::validate
+                this::fetchData
         );
     }
 
-    private Object validate(final DataFetchingEnvironment 
dataFetchingEnvironment) {
+    private Object fetchData(final DataFetchingEnvironment 
dataFetchingEnvironment) {
 
         final ObjectAction objectAction = holder.getObjectAction();
 
diff --git 
a/viewers/graphql/model/src/main/java/org/apache/causeway/viewer/graphql/model/domain/GqlvAssociationGet.java
 
b/viewers/graphql/model/src/main/java/org/apache/causeway/viewer/graphql/model/domain/GqlvAssociationGet.java
index ff24a587c2..ffb2b6b63f 100644
--- 
a/viewers/graphql/model/src/main/java/org/apache/causeway/viewer/graphql/model/domain/GqlvAssociationGet.java
+++ 
b/viewers/graphql/model/src/main/java/org/apache/causeway/viewer/graphql/model/domain/GqlvAssociationGet.java
@@ -69,14 +69,14 @@ public abstract class GqlvAssociationGet<T extends 
ObjectAssociation> extends Gq
 
                 context.codeRegistryBuilder.dataFetcher(
                         parent.coordinatesFor(getField()),
-                        this::get);
+                        this::fetchData);
 
                 break;
 
         }
     }
 
-    Object get(final DataFetchingEnvironment dataFetchingEnvironment) {
+    Object fetchData(final DataFetchingEnvironment dataFetchingEnvironment) {
 
         // TODO: introduce evaluator
         val sourcePojo = BookmarkedPojo.sourceFrom(dataFetchingEnvironment);
diff --git 
a/viewers/graphql/model/src/main/java/org/apache/causeway/viewer/graphql/model/domain/GqlvCollection.java
 
b/viewers/graphql/model/src/main/java/org/apache/causeway/viewer/graphql/model/domain/GqlvCollection.java
index a2495f1d9d..cc6f33cf1e 100644
--- 
a/viewers/graphql/model/src/main/java/org/apache/causeway/viewer/graphql/model/domain/GqlvCollection.java
+++ 
b/viewers/graphql/model/src/main/java/org/apache/causeway/viewer/graphql/model/domain/GqlvCollection.java
@@ -18,12 +18,15 @@
  */
 package org.apache.causeway.viewer.graphql.model.domain;
 
+import graphql.schema.DataFetchingEnvironment;
+
 import static graphql.schema.GraphQLFieldDefinition.newFieldDefinition;
 import static graphql.schema.GraphQLObjectType.newObject;
 
 import org.apache.causeway.core.metamodel.spec.ObjectSpecification;
 import org.apache.causeway.core.metamodel.spec.feature.OneToManyAssociation;
 import org.apache.causeway.viewer.graphql.model.context.Context;
+import org.apache.causeway.viewer.graphql.model.fetcher.BookmarkedPojo;
 import org.apache.causeway.viewer.graphql.model.fetcher.BookmarkedPojoFetcher;
 
 public class GqlvCollection
@@ -66,13 +69,17 @@ public class GqlvCollection
     public void addDataFetcher(Parent parent) {
         context.codeRegistryBuilder.dataFetcher(
                 parent.coordinatesFor(getField()),
-                new BookmarkedPojoFetcher(context.bookmarkService));
+                this::fetchData);
 
         hidden.addDataFetcher(this);
         disabled.addDataFetcher(this);
         get.addDataFetcher(this);
     }
 
+    private Object fetchData(DataFetchingEnvironment dataFetchingEnvironment) {
+        return BookmarkedPojo.sourceFrom(dataFetchingEnvironment, context);
+    }
+
     public interface Holder extends GqlvAssociation.Holder {
 
     }
diff --git 
a/viewers/graphql/model/src/main/java/org/apache/causeway/viewer/graphql/model/domain/GqlvDomainObject.java
 
b/viewers/graphql/model/src/main/java/org/apache/causeway/viewer/graphql/model/domain/GqlvDomainObject.java
index 893bd2a2ab..8edaace838 100644
--- 
a/viewers/graphql/model/src/main/java/org/apache/causeway/viewer/graphql/model/domain/GqlvDomainObject.java
+++ 
b/viewers/graphql/model/src/main/java/org/apache/causeway/viewer/graphql/model/domain/GqlvDomainObject.java
@@ -25,6 +25,7 @@ import java.util.TreeMap;
 
 import graphql.Scalars;
 import graphql.schema.DataFetcher;
+import graphql.schema.DataFetchingEnvironment;
 import graphql.schema.GraphQLArgument;
 import graphql.schema.GraphQLFieldDefinition;
 import graphql.schema.GraphQLInputObjectType;
@@ -159,11 +160,7 @@ public class GqlvDomainObject
 
         this.context.codeRegistryBuilder.dataFetcher(
                 parent.coordinatesFor(getLookupField()),
-                (DataFetcher<Object>) environment -> {
-                    Object target = environment.getArgument("object");
-                    return GqlvAction.asPojo(getObjectSpecification(), target, 
this.context.bookmarkService)
-                            .orElse(null);
-                });
+                this::fetchData);
 
         meta.addDataFetchers(this);
         properties.forEach((id, property) -> property.addDataFetcher(this));
@@ -171,6 +168,12 @@ public class GqlvDomainObject
         actions.forEach((id, action) -> action.addDataFetcher(this));
     }
 
+    private Object fetchData(DataFetchingEnvironment environment) {
+        Object target = environment.getArgument("object");
+        return GqlvAction.asPojo(getObjectSpecification(), target, 
this.context.bookmarkService)
+                .orElse(null);
+    }
+
 
     @Override
     public String toString() {
diff --git 
a/viewers/graphql/model/src/main/java/org/apache/causeway/viewer/graphql/model/domain/GqlvDomainService.java
 
b/viewers/graphql/model/src/main/java/org/apache/causeway/viewer/graphql/model/domain/GqlvDomainService.java
index d259c7a196..3c9677549d 100644
--- 
a/viewers/graphql/model/src/main/java/org/apache/causeway/viewer/graphql/model/domain/GqlvDomainService.java
+++ 
b/viewers/graphql/model/src/main/java/org/apache/causeway/viewer/graphql/model/domain/GqlvDomainService.java
@@ -29,6 +29,8 @@ import 
org.apache.causeway.core.metamodel.spec.feature.MixedIn;
 import org.apache.causeway.core.metamodel.spec.feature.ObjectAction;
 import org.apache.causeway.viewer.graphql.model.context.Context;
 
+import graphql.schema.DataFetchingEnvironment;
+
 import lombok.Getter;
 import lombok.val;
 
@@ -90,12 +92,16 @@ public class GqlvDomainService
     public void addDataFetchers(Parent parent) {
         context.codeRegistryBuilder.dataFetcher(
                 parent.coordinatesFor(getField()),
-                (DataFetcher<Object>) environment -> getServicePojo());
+                this::fetchData);
         if (hasActions()) {
             actions.forEach((id, gqlva) -> gqlva.addDataFetcher(this));
         }
     }
 
+    private Object fetchData(DataFetchingEnvironment environment) {
+        return getServicePojo();
+    }
+
 
     @Override
     public String toString() {
diff --git 
a/viewers/graphql/model/src/main/java/org/apache/causeway/viewer/graphql/model/domain/GqlvMemberDisabled.java
 
b/viewers/graphql/model/src/main/java/org/apache/causeway/viewer/graphql/model/domain/GqlvMemberDisabled.java
index 88a03d3e4d..37d013ee37 100644
--- 
a/viewers/graphql/model/src/main/java/org/apache/causeway/viewer/graphql/model/domain/GqlvMemberDisabled.java
+++ 
b/viewers/graphql/model/src/main/java/org/apache/causeway/viewer/graphql/model/domain/GqlvMemberDisabled.java
@@ -55,11 +55,11 @@ public class GqlvMemberDisabled<T extends ObjectMember> 
extends GqlvAbstract {
     public void addDataFetcher(Parent parent) {
         context.codeRegistryBuilder.dataFetcher(
                 parent.coordinatesFor(getField()),
-                this::disabled
+                this::fetchData
         );
     }
 
-    private String disabled(
+    private String fetchData(
             final DataFetchingEnvironment dataFetchingEnvironment) {
 
         val sourcePojo = BookmarkedPojo.sourceFrom(dataFetchingEnvironment);
diff --git 
a/viewers/graphql/model/src/main/java/org/apache/causeway/viewer/graphql/model/domain/GqlvMemberHidden.java
 
b/viewers/graphql/model/src/main/java/org/apache/causeway/viewer/graphql/model/domain/GqlvMemberHidden.java
index 5a0017a37f..0baf237c8e 100644
--- 
a/viewers/graphql/model/src/main/java/org/apache/causeway/viewer/graphql/model/domain/GqlvMemberHidden.java
+++ 
b/viewers/graphql/model/src/main/java/org/apache/causeway/viewer/graphql/model/domain/GqlvMemberHidden.java
@@ -55,11 +55,11 @@ public class GqlvMemberHidden<T extends ObjectMember> 
extends GqlvAbstract {
     public void addDataFetcher(Parent parent) {
         context.codeRegistryBuilder.dataFetcher(
                 parent.coordinatesFor(getField()),
-                this::hidden
+                this::fetchData
         );
     }
 
-    private boolean hidden(
+    private boolean fetchData(
             final DataFetchingEnvironment dataFetchingEnvironment) {
 
         val sourcePojo = BookmarkedPojo.sourceFrom(dataFetchingEnvironment);
diff --git 
a/viewers/graphql/model/src/main/java/org/apache/causeway/viewer/graphql/model/domain/GqlvMeta.java
 
b/viewers/graphql/model/src/main/java/org/apache/causeway/viewer/graphql/model/domain/GqlvMeta.java
index f0d8f6552c..6a540dc31f 100644
--- 
a/viewers/graphql/model/src/main/java/org/apache/causeway/viewer/graphql/model/domain/GqlvMeta.java
+++ 
b/viewers/graphql/model/src/main/java/org/apache/causeway/viewer/graphql/model/domain/GqlvMeta.java
@@ -23,6 +23,7 @@ import java.util.Optional;
 
 import graphql.Scalars;
 import graphql.schema.DataFetcher;
+import graphql.schema.DataFetchingEnvironment;
 import graphql.schema.GraphQLFieldDefinition;
 
 import static graphql.schema.FieldCoordinates.coordinates;
@@ -36,6 +37,7 @@ import org.apache.causeway.applib.services.metamodel.BeanSort;
 import org.apache.causeway.core.metamodel.facets.object.entity.EntityFacet;
 import org.apache.causeway.core.metamodel.objectmanager.ObjectManager;
 import org.apache.causeway.viewer.graphql.model.context.Context;
+import org.apache.causeway.viewer.graphql.model.fetcher.BookmarkedPojo;
 import 
org.apache.causeway.viewer.graphql.model.mmproviders.ObjectSpecificationProvider;
 
 import lombok.val;
@@ -72,10 +74,7 @@ public class GqlvMeta extends GqlvAbstractCustom {
 
         context.codeRegistryBuilder.dataFetcher(
                 parent.coordinatesFor(getField()),
-                (DataFetcher<Object>) environment ->
-                    
context.bookmarkService.bookmarkFor(environment.getSource())
-                        .map(bookmark -> new Fetcher(bookmark, 
context.bookmarkService, context.objectManager))
-                        .orElseThrow());
+                this::fetchData);
 
         context.codeRegistryBuilder.dataFetcher(
                 coordinates(getGqlObjectType(), logicalTypeName),
@@ -92,6 +91,18 @@ public class GqlvMeta extends GqlvAbstractCustom {
         }
     }
 
+    private Fetcher fetchData(DataFetchingEnvironment environment) {
+        return context.bookmarkService.bookmarkFor(environment.getSource())
+                .map(bookmark -> new Fetcher(bookmark, 
context.bookmarkService, context.objectManager))
+                .orElseThrow();
+    }
+
+    // TODO: probably equivalent of:
+//    private Object fetchData(DataFetchingEnvironment 
dataFetchingEnvironment) {
+//        return BookmarkedPojo.sourceFrom(dataFetchingEnvironment, context);
+//    }
+
+
 
     /**
      * Metadata for every domain object.
diff --git 
a/viewers/graphql/model/src/main/java/org/apache/causeway/viewer/graphql/model/domain/GqlvMutationForAction.java
 
b/viewers/graphql/model/src/main/java/org/apache/causeway/viewer/graphql/model/domain/GqlvMutationForAction.java
index a990d1fcd1..d62d6439c9 100644
--- 
a/viewers/graphql/model/src/main/java/org/apache/causeway/viewer/graphql/model/domain/GqlvMutationForAction.java
+++ 
b/viewers/graphql/model/src/main/java/org/apache/causeway/viewer/graphql/model/domain/GqlvMutationForAction.java
@@ -118,11 +118,11 @@ public class GqlvMutationForAction extends GqlvAbstract {
     public void addDataFetcher(Parent parent) {
         context.codeRegistryBuilder.dataFetcher(
                 parent.coordinatesFor(getField()),
-                this::invoke
+                this::fetchData
         );
     }
 
-    private Object invoke(final DataFetchingEnvironment 
dataFetchingEnvironment) {
+    private Object fetchData(final DataFetchingEnvironment 
dataFetchingEnvironment) {
 
         val isService = objectSpec.getBeanSort().isManagedBeanContributing();
 
diff --git 
a/viewers/graphql/model/src/main/java/org/apache/causeway/viewer/graphql/model/domain/GqlvMutationForProperty.java
 
b/viewers/graphql/model/src/main/java/org/apache/causeway/viewer/graphql/model/domain/GqlvMutationForProperty.java
index 70c487088d..ec148c55e6 100644
--- 
a/viewers/graphql/model/src/main/java/org/apache/causeway/viewer/graphql/model/domain/GqlvMutationForProperty.java
+++ 
b/viewers/graphql/model/src/main/java/org/apache/causeway/viewer/graphql/model/domain/GqlvMutationForProperty.java
@@ -86,13 +86,13 @@ public class GqlvMutationForProperty extends GqlvAbstract {
             case ENTITY:
                 context.codeRegistryBuilder.dataFetcher(
                         parent.coordinatesFor(getField()),
-                        this::set);
+                        this::fetchData);
 
                 break;
         }
     }
 
-    private Object set(final DataFetchingEnvironment dataFetchingEnvironment) {
+    private Object fetchData(final DataFetchingEnvironment 
dataFetchingEnvironment) {
 
 
         Object target = dataFetchingEnvironment.getArgument(argumentName);
diff --git 
a/viewers/graphql/model/src/main/java/org/apache/causeway/viewer/graphql/model/domain/GqlvProperty.java
 
b/viewers/graphql/model/src/main/java/org/apache/causeway/viewer/graphql/model/domain/GqlvProperty.java
index b35c3f107b..2ae32a0d9b 100644
--- 
a/viewers/graphql/model/src/main/java/org/apache/causeway/viewer/graphql/model/domain/GqlvProperty.java
+++ 
b/viewers/graphql/model/src/main/java/org/apache/causeway/viewer/graphql/model/domain/GqlvProperty.java
@@ -18,6 +18,7 @@
  */
 package org.apache.causeway.viewer.graphql.model.domain;
 
+import graphql.schema.DataFetchingEnvironment;
 import graphql.schema.GraphQLArgument;
 import graphql.schema.GraphQLFieldDefinition;
 
@@ -27,6 +28,7 @@ import static graphql.schema.GraphQLObjectType.newObject;
 import org.apache.causeway.core.config.CausewayConfiguration;
 import org.apache.causeway.core.metamodel.spec.ObjectSpecification;
 import org.apache.causeway.core.metamodel.spec.feature.OneToOneAssociation;
+import org.apache.causeway.viewer.graphql.model.fetcher.BookmarkedPojo;
 import org.apache.causeway.viewer.graphql.model.types.TypeMapper;
 import org.apache.causeway.viewer.graphql.model.context.Context;
 import org.apache.causeway.viewer.graphql.model.fetcher.BookmarkedPojoFetcher;
@@ -135,7 +137,7 @@ public class GqlvProperty
     public void addDataFetcher(Parent parent) {
         context.codeRegistryBuilder.dataFetcher(
                 parent.coordinatesFor(getField()),
-                new BookmarkedPojoFetcher(context.bookmarkService));
+                this::fetchData);
 
         hidden.addDataFetcher(this);
         disabled.addDataFetcher(this);
@@ -152,6 +154,10 @@ public class GqlvProperty
         }
     }
 
+    private Object fetchData(DataFetchingEnvironment dataFetchingEnvironment) {
+        return BookmarkedPojo.sourceFrom(dataFetchingEnvironment, context);
+    }
+
 
     public interface Holder
             extends GqlvAssociation.Holder {
diff --git 
a/viewers/graphql/model/src/main/java/org/apache/causeway/viewer/graphql/model/domain/GqlvPropertyAutoComplete.java
 
b/viewers/graphql/model/src/main/java/org/apache/causeway/viewer/graphql/model/domain/GqlvPropertyAutoComplete.java
index 2b58001609..f40328f20d 100644
--- 
a/viewers/graphql/model/src/main/java/org/apache/causeway/viewer/graphql/model/domain/GqlvPropertyAutoComplete.java
+++ 
b/viewers/graphql/model/src/main/java/org/apache/causeway/viewer/graphql/model/domain/GqlvPropertyAutoComplete.java
@@ -81,13 +81,13 @@ public class GqlvPropertyAutoComplete extends GqlvAbstract {
             case ENTITY:
                 context.codeRegistryBuilder.dataFetcher(
                         parent.coordinatesFor(getField()),
-                        this::autoComplete);
+                        this::fetchData);
 
                 break;
         }
     }
 
-    List<Object> autoComplete(final DataFetchingEnvironment 
dataFetchingEnvironment) {
+    List<Object> fetchData(final DataFetchingEnvironment 
dataFetchingEnvironment) {
 
         val sourcePojo = BookmarkedPojo.sourceFrom(dataFetchingEnvironment);
 
diff --git 
a/viewers/graphql/model/src/main/java/org/apache/causeway/viewer/graphql/model/domain/GqlvPropertyChoices.java
 
b/viewers/graphql/model/src/main/java/org/apache/causeway/viewer/graphql/model/domain/GqlvPropertyChoices.java
index 741c74e8c2..2e6d34a5f5 100644
--- 
a/viewers/graphql/model/src/main/java/org/apache/causeway/viewer/graphql/model/domain/GqlvPropertyChoices.java
+++ 
b/viewers/graphql/model/src/main/java/org/apache/causeway/viewer/graphql/model/domain/GqlvPropertyChoices.java
@@ -77,13 +77,13 @@ public class GqlvPropertyChoices extends GqlvAbstract {
             case ENTITY:
                 context.codeRegistryBuilder.dataFetcher(
                         parent.coordinatesFor(getField()),
-                        this::choices);
+                        this::fetchData);
 
                 break;
         }
     }
 
-    List<Object> choices(final DataFetchingEnvironment 
dataFetchingEnvironment) {
+    List<Object> fetchData(final DataFetchingEnvironment 
dataFetchingEnvironment) {
 
         val sourcePojo = BookmarkedPojo.sourceFrom(dataFetchingEnvironment);
 
diff --git 
a/viewers/graphql/model/src/main/java/org/apache/causeway/viewer/graphql/model/domain/GqlvPropertySet.java
 
b/viewers/graphql/model/src/main/java/org/apache/causeway/viewer/graphql/model/domain/GqlvPropertySet.java
index 0710138aca..a7b0c4b4d5 100644
--- 
a/viewers/graphql/model/src/main/java/org/apache/causeway/viewer/graphql/model/domain/GqlvPropertySet.java
+++ 
b/viewers/graphql/model/src/main/java/org/apache/causeway/viewer/graphql/model/domain/GqlvPropertySet.java
@@ -79,13 +79,13 @@ public class GqlvPropertySet extends GqlvAbstract {
             case ENTITY:
                 context.codeRegistryBuilder.dataFetcher(
                         parent.coordinatesFor(getField()),
-                        this::set);
+                        this::fetchData);
 
                 break;
         }
     }
 
-    Object set(final DataFetchingEnvironment dataFetchingEnvironment) {
+    Object fetchData(final DataFetchingEnvironment dataFetchingEnvironment) {
 
         val sourcePojo = BookmarkedPojo.sourceFrom(dataFetchingEnvironment);
 
diff --git 
a/viewers/graphql/model/src/main/java/org/apache/causeway/viewer/graphql/model/domain/GqlvPropertyValidate.java
 
b/viewers/graphql/model/src/main/java/org/apache/causeway/viewer/graphql/model/domain/GqlvPropertyValidate.java
index 91568650a1..acc7059bf2 100644
--- 
a/viewers/graphql/model/src/main/java/org/apache/causeway/viewer/graphql/model/domain/GqlvPropertyValidate.java
+++ 
b/viewers/graphql/model/src/main/java/org/apache/causeway/viewer/graphql/model/domain/GqlvPropertyValidate.java
@@ -64,13 +64,13 @@ public class GqlvPropertyValidate extends GqlvAbstract {
             case ENTITY:
                 context.codeRegistryBuilder.dataFetcher(
                         parent.coordinatesFor(getField()),
-                        this::validate);
+                        this::fetchData);
 
                 break;
         }
     }
 
-    Object validate(final DataFetchingEnvironment dataFetchingEnvironment) {
+    Object fetchData(final DataFetchingEnvironment dataFetchingEnvironment) {
 
         val sourcePojo = BookmarkedPojo.sourceFrom(dataFetchingEnvironment);
 
diff --git 
a/viewers/graphql/model/src/main/java/org/apache/causeway/viewer/graphql/model/domain/GqlvScenario.java
 
b/viewers/graphql/model/src/main/java/org/apache/causeway/viewer/graphql/model/domain/GqlvScenario.java
index e6191eb27a..9674a5c7ff 100644
--- 
a/viewers/graphql/model/src/main/java/org/apache/causeway/viewer/graphql/model/domain/GqlvScenario.java
+++ 
b/viewers/graphql/model/src/main/java/org/apache/causeway/viewer/graphql/model/domain/GqlvScenario.java
@@ -67,14 +67,16 @@ public class GqlvScenario
     public void addDataFetchers(Parent parent) {
         context.codeRegistryBuilder.dataFetcher(
                 parent.coordinatesFor(getField()),
-                (DataFetcher<Object>) environment -> {
-                    String scenarioName = environment.getArgument("name");
-                    environment.getGraphQlContext().put(KEY_SCENARIO_NAME, 
scenarioName);
-                    return environment;
-                });
+                this::fetchData);
 
         scenarioName.addDataFetchers(this);
         scenarioGiven.addDataFetchers(this);
     }
 
+    private DataFetchingEnvironment fetchData(DataFetchingEnvironment 
environment) {
+        String scenarioName = environment.getArgument("name");
+        environment.getGraphQlContext().put(KEY_SCENARIO_NAME, scenarioName);
+        return environment;
+    }
+
 }
diff --git 
a/viewers/graphql/model/src/main/java/org/apache/causeway/viewer/graphql/model/domain/GqlvScenarioGiven.java
 
b/viewers/graphql/model/src/main/java/org/apache/causeway/viewer/graphql/model/domain/GqlvScenarioGiven.java
index 9a3bb732b7..c37dc92e40 100644
--- 
a/viewers/graphql/model/src/main/java/org/apache/causeway/viewer/graphql/model/domain/GqlvScenarioGiven.java
+++ 
b/viewers/graphql/model/src/main/java/org/apache/causeway/viewer/graphql/model/domain/GqlvScenarioGiven.java
@@ -60,7 +60,7 @@ public class GqlvScenarioGiven
     public void addDataFetchers(Parent parent) {
         context.codeRegistryBuilder.dataFetcher(
                 parent.coordinatesFor(getField()),
-                (DataFetcher<Object>) environment -> environment);
+                GqlvScenarioGiven::fetchData);
 
         domainServices.forEach(domainService -> {
             boolean actionsAdded = domainService.hasActions();
@@ -72,5 +72,9 @@ public class GqlvScenarioGiven
         domainObjects.forEach(domainObject -> 
domainObject.addDataFetchers(this));
     }
 
+    private static DataFetchingEnvironment fetchData(DataFetchingEnvironment 
environment) {
+        return environment;
+    }
+
 
 }


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