Support for linked lists in objmap2.

[simantics/platform.git] / bundles / org.simantics.objmap2 / src / org / simantics / objmap / graph / annotations / factories / LinkedListRuleFactory2.java

diff --git a/bundles/org.simantics.objmap2/src/org/simantics/objmap/graph/annotations/factories/LinkedListRuleFactory2.java b/bundles/org.simantics.objmap2/src/org/simantics/objmap/graph/annotations/factories/LinkedListRuleFactory2.java
new file mode 100644 (file)
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+++ b/bundles/org.simantics.objmap2/src/org/simantics/objmap/graph/annotations/factories/LinkedListRuleFactory2.java
@@ -0,0 +1,54 @@
+/*******************************************************************************
+ * Copyright (c) 2019 Association for Decentralized Information Management in
+ * Industry THTH ry.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     Semantum oy - initial API and implementation
+ *******************************************************************************/
+package org.simantics.objmap.graph.annotations.factories;
+
+import java.lang.annotation.Annotation;
+import java.lang.reflect.Method;
+
+import org.simantics.db.ReadGraph;
+import org.simantics.db.Resource;
+import org.simantics.db.exception.DatabaseException;
+import org.simantics.objmap.bidirectional.IBidirectionalMappingRule;
+import org.simantics.objmap.graph.annotations.LinkedListAdd;
+import org.simantics.objmap.graph.annotations.LinkedListGet;
+import org.simantics.objmap.graph.annotations.LinkedListRem;
+import org.simantics.objmap.graph.rules.MappedElementsRule;
+import org.simantics.objmap.graph.rules.domain.LinkedListAccessor;
+import org.simantics.objmap.graph.rules.factory.ICollectionRuleFactory;
+import org.simantics.objmap.graph.rules.range.CollectionAccessor;
+
+public class LinkedListRuleFactory2<Range> implements ICollectionRuleFactory<Resource,Range> {
+       
+       @Override
+       public IBidirectionalMappingRule<Resource, Range> create(ReadGraph g, Annotation annotation,
+                       Method getter, Method adder, Method remover)
+                       throws DatabaseException {
+               LinkedListGet getterAnn = (LinkedListGet)annotation;
+               return new MappedElementsRule<Resource,Range>(new LinkedListAccessor(g.getResource(getterAnn.value()), g.getResource(getterAnn.type()), getterAnn.composition()),
+                                       new CollectionAccessor<Range,Range>(getter, adder, remover));
+       }
+       
+       @Override
+       public boolean isAdder(Annotation getterAnnotation, Annotation annotation) {
+               LinkedListGet getterAnn = (LinkedListGet)getterAnnotation;
+               LinkedListAdd adderAnn = (LinkedListAdd)annotation;
+               return getterAnn.value().equals(adderAnn.value());
+       }
+       
+       @Override
+       public boolean isRemover(Annotation getterAnnotation, Annotation annotation) {
+               LinkedListGet getterAnn = (LinkedListGet)getterAnnotation;
+               LinkedListRem adderAnn = (LinkedListRem)annotation;
+               return getterAnn.value().equals(adderAnn.value());
+       }
+
+}