Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.databoard / src / org / simantics / databoard / binding / mutable / MutableVariantBinding.java

diff --git a/bundles/org.simantics.databoard/src/org/simantics/databoard/binding/mutable/MutableVariantBinding.java b/bundles/org.simantics.databoard/src/org/simantics/databoard/binding/mutable/MutableVariantBinding.java
new file mode 100644 (file)
index 0000000..51c9f39
--- /dev/null
+++ b/bundles/org.simantics.databoard/src/org/simantics/databoard/binding/mutable/MutableVariantBinding.java
@@ -0,0 +1,65 @@
+/*******************************************************************************\r
+ *  Copyright (c) 2010 Association for Decentralized Information Management in\r
+ *  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.databoard.binding.mutable;
+
+import java.util.Set;\r
+\r
+import org.simantics.databoard.adapter.AdapterFactory;\r
+import org.simantics.databoard.binding.Binding;\r
+import org.simantics.databoard.binding.error.BindingException;\r
+import org.simantics.databoard.binding.reflection.ClassBindingFactory;\r
+
+/**
+ * MutableVariantBinding binds VariantType to {@link MutableVariant} Class. 
+ */
+public class MutableVariantBinding extends ImmutableVariantBinding {
+               \r
+       public MutableVariantBinding(ClassBindingFactory bindingFactory, AdapterFactory adapterFactory) {\r
+               super(bindingFactory, adapterFactory);\r
+       }\r
+       \r
+       @Override\r
+       public Object create(Binding binding, Object value) throws BindingException {\r
+               return new MutableVariant(binding, value);\r
+       }\r
+       \r
+       @Override
+       public boolean isImmutable() {
+               return false;
+       }
+\r
+       @Override\r
+       public boolean isInstance(Object obj) {\r
+               if (obj==null) return false;\r
+               if (obj instanceof MutableVariant == false) return false;\r
+               return true;\r
+       }\r
+       \r
+       @Override\r
+       public void assertInstaceIsValid(Object obj, Set<Object> validInstances) throws BindingException {\r
+               if (obj==null) throw new BindingException("null value is not MutableVariant");\r
+               if (obj instanceof MutableVariant == false) throw new BindingException("wrong class, MutableVariant expected");\r
+               MutableVariant var = (MutableVariant) obj;\r
+               if (var.binding==null) throw new BindingException("Binding is expected");               \r
+               var.binding.assertInstaceIsValid(var.value, validInstances);\r
+       }\r
+       
+       @Override
+       public void setContent(Object variant, Binding binding, Object value)
+                       throws BindingException {
+               assert(isValid(binding, value));
+               MutableVariant var = (MutableVariant) variant;
+               var.binding = binding;
+               var.value = value;
+       }
+
+}