Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.objmap2 / src / org / simantics / objmap / graph / rules / ValueRule.java

diff --git a/bundles/org.simantics.objmap2/src/org/simantics/objmap/graph/rules/ValueRule.java b/bundles/org.simantics.objmap2/src/org/simantics/objmap/graph/rules/ValueRule.java
new file mode 100644 (file)
index 0000000..231e14a
--- /dev/null
+++ b/bundles/org.simantics.objmap2/src/org/simantics/objmap/graph/rules/ValueRule.java
@@ -0,0 +1,69 @@
+/*******************************************************************************\r
+ * Copyright (c) 2007, 2013 Association for Decentralized Information Management\r
+ * in Industry THTH ry.\r
+ * All rights reserved. This program and the accompanying materials\r
+ * are made available under the terms of the Eclipse Public License v1.0\r
+ * which accompanies this distribution, and is available at\r
+ * http://www.eclipse.org/legal/epl-v10.html\r
+ *\r
+ * Contributors:\r
+ *     VTT Technical Research Centre of Finland - initial API and implementation\r
+ *******************************************************************************/\r
+package org.simantics.objmap.graph.rules;\r
+\r
+import org.apache.log4j.Logger;\r
+import org.simantics.db.ReadGraph;\r
+import org.simantics.db.WriteGraph;\r
+import org.simantics.objmap.backward.IBackwardMapping;\r
+import org.simantics.objmap.bidirectional.IBidirectionalMappingRule;\r
+import org.simantics.objmap.exceptions.MappingException;\r
+import org.simantics.objmap.forward.IForwardMapping;\r
+import org.simantics.objmap.graph.rules.domain.IDomainAccessor;\r
+import org.simantics.objmap.graph.rules.range.IRangeAccessor;\r
+\r
+\r
+/**\r
+ * A rule that synchronizes values between domain and\r
+ * range accessors.\r
+ * @author Hannu Niemistö\r
+ */\r
+public class ValueRule<Domain, Range> implements IBidirectionalMappingRule<Domain, Range> {\r
+    \r
+    static Logger LOGGER = Logger.getLogger("org.simantics.objmap");\r
+    \r
+       IDomainAccessor<Domain,Object> domainAccessor;\r
+       IRangeAccessor<Range,Object> rangeAccessor;\r
+       \r
+       public ValueRule(IDomainAccessor<Domain,Object> domainAccessor,\r
+                       IRangeAccessor<Range,Object> rangeAccessor) {\r
+               this.domainAccessor = domainAccessor;\r
+               this.rangeAccessor = rangeAccessor;\r
+       }\r
+\r
+       @Override\r
+       public boolean updateDomain(WriteGraph g, IBackwardMapping<Domain, Range> map,\r
+                       Domain domainElement, Range rangeElement)\r
+                       throws MappingException {\r
+        LOGGER.info("    ValueRule.updateDomain");         \r
+               Object value = rangeAccessor.get(rangeElement);\r
+               return domainAccessor.set(g, domainElement, value);\r
+       }\r
+\r
+       @Override\r
+       public boolean updateRange(ReadGraph g, IForwardMapping<Domain, Range> map,\r
+                       Domain domainElement, Range rangeElement)\r
+                       throws MappingException {\r
+        LOGGER.info("    ValueRule.updateRange");\r
+               Object value = domainAccessor.get(g, domainElement);\r
+               return rangeAccessor.set(rangeElement, value);\r
+       }       \r
+       \r
+       public void createDomain(WriteGraph g, IBackwardMapping<Domain,Range> map, Domain domainElement, Range rangeElement) throws MappingException {\r
+               updateDomain(g, map, domainElement, rangeElement);\r
+       };\r
+       public void createRange(ReadGraph g, IForwardMapping<Domain,Range> map, Domain domainElement, Range rangeElement) throws MappingException {\r
+               updateRange(g, map, domainElement, rangeElement);\r
+       };\r
+}\r
+\r
+\r