Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.databoard / src / org / simantics / databoard / binding / impl / BeanBinding.java

diff --git a/bundles/org.simantics.databoard/src/org/simantics/databoard/binding/impl/BeanBinding.java b/bundles/org.simantics.databoard/src/org/simantics/databoard/binding/impl/BeanBinding.java
new file mode 100644 (file)
index 0000000..9653bc6
--- /dev/null
+++ b/bundles/org.simantics.databoard/src/org/simantics/databoard/binding/impl/BeanBinding.java
@@ -0,0 +1,138 @@
+/*******************************************************************************\r
+ * Copyright (c) 2007, 2011 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.impl;\r
+\r
+import java.util.Set;\r
+\r
+import org.simantics.databoard.adapter.AdaptException;\r
+import org.simantics.databoard.adapter.AdapterFactory;\r
+import org.simantics.databoard.binding.Binding;\r
+import org.simantics.databoard.binding.RecordBinding;\r
+import org.simantics.databoard.binding.VariantBinding;\r
+import org.simantics.databoard.binding.classfactory.TypeClassFactory;\r
+import org.simantics.databoard.binding.error.BindingConstructionException;\r
+import org.simantics.databoard.binding.error.BindingException;\r
+import org.simantics.databoard.binding.factory.BindingRepository;\r
+import org.simantics.databoard.binding.reflection.BindingRequest;\r
+import org.simantics.databoard.binding.reflection.ClassBindingFactory;\r
+import org.simantics.databoard.type.Datatype;\r
+import org.simantics.databoard.util.Bean;\r
+\r
+/**\r
+ * Binds Bean-class (exact match) as Variant.\r
+ *\r
+ * @author Toni Kalajainen <toni.kalajainen@vtt.fi>\r
+ */\r
+public class BeanBinding extends VariantBinding {\r
+       \r
+       ClassBindingFactory bindingFactory;\r
+       AdapterFactory adapterFactory;\r
+       TypeClassFactory typeClassFactory;\r
+\r
+       public BeanBinding(ClassBindingFactory bindingFactory, TypeClassFactory typeClassFactory, AdapterFactory adapterFactory) {\r
+               this.bindingFactory = bindingFactory;\r
+               this.adapterFactory = adapterFactory;\r
+               this.typeClassFactory = typeClassFactory;\r
+       }\r
+\r
+       public ClassBindingFactory getBindingFactory() {\r
+               return bindingFactory;\r
+       }\r
+       \r
+       public BindingRepository getRepository() {\r
+               return bindingFactory.getRepository();\r
+       }\r
+               \r
+       @Override\r
+       public Object create(Binding srcBinding, Object value) throws BindingException {\r
+//             if (srcBinding instanceof RecordBinding == false) throw new BindingException("Cannot assign "+srcBinding.getClass()+" to bean.");\r
+               try {                   \r
+                       BindingRequest request = typeClassFactory.getClass( srcBinding.type() );                        \r
+                       Binding dstBinding = bindingFactory.getBinding( request );\r
+                       return adapterFactory.adapt(value, srcBinding, dstBinding); \r
+               } catch (BindingConstructionException e) {\r
+                       throw new BindingException(e);\r
+               } catch (AdaptException e) {\r
+                       throw new BindingException(e);\r
+               }               \r
+       }\r
+\r
+       @Override\r
+       public Binding getContentBinding(Object variant) throws BindingException {\r
+               Bean bean = (Bean) variant;\r
+               return bean.getBinding();\r
+       }\r
+\r
+       @Override\r
+       public Datatype getContentType(Object variant) throws BindingException {\r
+               Bean bean = (Bean) variant;\r
+               return bean.getBinding().type();\r
+       }\r
+\r
+       @Override\r
+       public Object getContent(Object variant, Binding binding)\r
+       throws BindingException {\r
+               try {\r
+                       if (binding instanceof RecordBinding == false) throw new BindingException("Cannot assign "+binding.getClass()+" to bean.");\r
+                       RecordBinding dstBinding = (RecordBinding) binding;\r
+                       Bean src = (Bean) variant;\r
+                       RecordBinding srcBinding = (RecordBinding) src.getBinding(); \r
+                       return adapterFactory.adapt(src, srcBinding, dstBinding);\r
+               } catch (AdaptException e) {\r
+                       throw new BindingException( e );\r
+               }\r
+       }\r
+       \r
+       @Override\r
+       public Object getContent(Object variant)\r
+       throws BindingException {\r
+               return variant;\r
+       }       \r
+\r
+       @Override\r
+       public void setContent(Object variant, Binding binding, Object src)\r
+       throws BindingException {\r
+               if (variant==src) return;\r
+               if (binding instanceof RecordBinding == false) throw new BindingException("Cannot assign "+binding.getClass()+" to bean.");\r
+               RecordBinding srcBinding = (RecordBinding) binding;\r
+               Bean dst = (Bean) variant;\r
+               RecordBinding dstBinding = (RecordBinding) dst.getBinding(); \r
+               dstBinding.readFrom(srcBinding, src, dst);\r
+       }\r
+\r
+       @Override\r
+       public void assertInstaceIsValid(Object obj, Set<Object> validInstances) throws BindingException {\r
+               Bean bean = (Bean) obj;\r
+               bean.getBinding().assertInstaceIsValid(bean, validInstances);\r
+       }\r
+\r
+       @Override\r
+       public boolean isInstance(Object obj) {\r
+               return obj instanceof Bean;\r
+       }\r
+       \r
+       @Override\r
+       public boolean isImmutable() {\r
+               return false;\r
+       }\r
+\r
+       @Override\r
+       protected boolean baseEquals(Object obj) {\r
+               BeanBinding o = (BeanBinding)obj;\r
+               return super.baseEquals(obj) && o.adapterFactory == this.adapterFactory && o.bindingFactory == this.bindingFactory && o.typeClassFactory == this.typeClassFactory;\r
+       }\r
+       \r
+       @Override\r
+       public int baseHashCode() {\r
+           return super.baseHashCode() + 7 * adapterFactory.hashCode() + 13 * bindingFactory.hashCode() + 17 * typeClassFactory.hashCode(); \r
+       }\r
+}\r