3 files changed, 117 insertions, 0 deletions

diff --git a/subprojects/store-dse/src/main/java/tools/refinery/store/dse/modification/actions/CreateActionLiteral.java b/subprojects/store-dse/src/main/java/tools/refinery/store/dse/modification/actions/CreateActionLiteral.java
new file mode 100644
index 00000000..5b86a5e1
--- /dev/null
+++ b/subprojects/store-dse/src/main/java/tools/refinery/store/dse/modification/actions/CreateActionLiteral.java
@@ -0,0 +1,43 @@
+/*
+ * SPDX-FileCopyrightText: 2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+package tools.refinery.store.dse.modification.actions;
+
+import tools.refinery.store.dse.modification.ModificationAdapter;
+import tools.refinery.store.dse.transition.actions.AbstractActionLiteral;
+import tools.refinery.store.dse.transition.actions.BoundActionLiteral;
+import tools.refinery.store.model.Model;
+import tools.refinery.store.query.term.NodeVariable;
+
+import java.util.List;
+
+public class CreateActionLiteral extends AbstractActionLiteral {
+        private final NodeVariable variable;
+
+        public CreateActionLiteral(NodeVariable variable) {
+
+                this.variable = variable;
+        }
+
+        public NodeVariable getVariable() {
+                return variable;
+        }
+
+        @Override
+        public List<NodeVariable> getInputVariables() {
+                return List.of();
+        }
+
+        @Override
+        public List<NodeVariable> getOutputVariables() {
+                return List.of(variable);
+        }
+
+        @Override
+        public BoundActionLiteral bindToModel(Model model) {
+                var adapter = model.getAdapter(ModificationAdapter.class);
+                return ignoredTuple -> adapter.createObject();
+        }
+}
diff --git a/subprojects/store-dse/src/main/java/tools/refinery/store/dse/modification/actions/DeleteActionLiteral.java b/subprojects/store-dse/src/main/java/tools/refinery/store/dse/modification/actions/DeleteActionLiteral.java
new file mode 100644
index 00000000..18ad2b9d
--- /dev/null
+++ b/subprojects/store-dse/src/main/java/tools/refinery/store/dse/modification/actions/DeleteActionLiteral.java
@@ -0,0 +1,51 @@
+/*
+ * SPDX-FileCopyrightText: 2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+package tools.refinery.store.dse.modification.actions;
+
+import tools.refinery.store.dse.modification.DanglingEdges;
+import tools.refinery.store.dse.modification.ModificationAdapter;
+import tools.refinery.store.dse.transition.actions.AbstractActionLiteral;
+import tools.refinery.store.dse.transition.actions.BoundActionLiteral;
+import tools.refinery.store.model.Model;
+import tools.refinery.store.query.term.NodeVariable;
+import tools.refinery.store.tuple.Tuple;
+
+import java.util.List;
+
+public class DeleteActionLiteral extends AbstractActionLiteral {
+        private final NodeVariable variable;
+        private final DanglingEdges danglingEdges;
+
+        public DeleteActionLiteral(NodeVariable variable, DanglingEdges danglingEdges) {
+
+                this.variable = variable;
+                this.danglingEdges = danglingEdges;
+        }
+
+        public NodeVariable getVariable() {
+                return variable;
+        }
+
+        public DanglingEdges getDanglingEdges() {
+                return danglingEdges;
+        }
+
+        @Override
+        public List<NodeVariable> getInputVariables() {
+                return List.of(variable);
+        }
+
+        @Override
+        public List<NodeVariable> getOutputVariables() {
+                return List.of();
+        }
+
+        @Override
+        public BoundActionLiteral bindToModel(Model model) {
+                var adapter = model.getAdapter(ModificationAdapter.class);
+                return tuple -> adapter.deleteObject(tuple, danglingEdges) ? Tuple.of() : null;
+        }
+}
diff --git a/subprojects/store-dse/src/main/java/tools/refinery/store/dse/modification/actions/ModificationActionLiterals.java b/subprojects/store-dse/src/main/java/tools/refinery/store/dse/modification/actions/ModificationActionLiterals.java
new file mode 100644
index 00000000..31f50ac7
--- /dev/null
+++ b/subprojects/store-dse/src/main/java/tools/refinery/store/dse/modification/actions/ModificationActionLiterals.java
@@ -0,0 +1,23 @@
+/*
+ * SPDX-FileCopyrightText: 2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+package tools.refinery.store.dse.modification.actions;
+
+import tools.refinery.store.dse.modification.DanglingEdges;
+import tools.refinery.store.query.term.NodeVariable;
+
+public class ModificationActionLiterals {
+        private ModificationActionLiterals() {
+                throw new IllegalArgumentException("This is a static utility class and should not be instantiated directly");
+        }
+
+        public static CreateActionLiteral create(NodeVariable variable) {
+                return new CreateActionLiteral(variable);
+        }
+
+        public static DeleteActionLiteral delete(NodeVariable variable, DanglingEdges danglingEdges) {
+                return new DeleteActionLiteral(variable, danglingEdges);
+        }
+}