--- /dev/null
+/*******************************************************************************\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.accessor.java;
+
+import org.simantics.databoard.Bindings;\r
+import org.simantics.databoard.accessor.Accessor;\r
+import org.simantics.databoard.accessor.DoubleAccessor;\r
+import org.simantics.databoard.accessor.error.AccessorConstructionException;\r
+import org.simantics.databoard.accessor.error.AccessorException;\r
+import org.simantics.databoard.accessor.error.ReferenceException;\r
+import org.simantics.databoard.accessor.event.Event;\r
+import org.simantics.databoard.accessor.event.ValueAssigned;\r
+import org.simantics.databoard.accessor.impl.AccessorParams;\r
+import org.simantics.databoard.accessor.impl.ListenerEntry;\r
+import org.simantics.databoard.accessor.interestset.DoubleInterestSet;\r
+import org.simantics.databoard.accessor.reference.ChildReference;\r
+import org.simantics.databoard.binding.ArrayBinding;\r
+import org.simantics.databoard.binding.Binding;\r
+import org.simantics.databoard.binding.DoubleBinding;\r
+import org.simantics.databoard.binding.RecordBinding;\r
+import org.simantics.databoard.binding.VariantBinding;\r
+import org.simantics.databoard.binding.error.BindingException;\r
+import org.simantics.databoard.type.DoubleType;\r
+
+/**
+ * Accessor to a Java Object that contains a Double Type.
+ *
+ * @author Toni Kalajainen <toni.kalajainen@vtt.fi>
+ */
+public class JavaDouble extends JavaObject implements DoubleAccessor {
+
+ public JavaDouble(Accessor parent, DoubleBinding binding, Object object, AccessorParams params) {
+ super(parent, binding, object, params);
+ }
+
+ public DoubleBinding getBinding() {
+ return (DoubleBinding) binding;
+ }
+
+ @Override
+ public DoubleType type() {
+ return getBinding().type();
+ }
+
+ @Override
+ public double getValue() throws AccessorException {\r
+ readLock();
+ try {
+ return getBinding().getValue_(object);
+ } catch (BindingException e) {
+ throw new AccessorException(e);
+ } finally {\r
+ readUnlock();\r
+ }
+ }\r
+
+ @Override
+ public void setValue(double newValue) throws AccessorException {
+ if (newValue == getValue()) return;\r
+ writeLock();\r
+ try {\r
+ if (binding.isImmutable() && parent!=null && parent instanceof JavaArray) {\r
+ JavaObject jo = (JavaObject) parent;\r
+ ArrayBinding ab = (ArrayBinding) jo.binding;\r
+ Object nv = getBinding().create(newValue);\r
+ ab.set(jo.object, (Integer)keyInParent, nv);\r
+ this.object = nv;\r
+ } else if (binding.isImmutable() && parent!=null && parent instanceof JavaRecord) {\r
+ JavaObject jo = (JavaObject) parent;\r
+ RecordBinding rb = (RecordBinding) jo.binding;\r
+ Object nv = getBinding().create(newValue);\r
+ rb.setComponent(jo.object, (Integer)keyInParent, nv);\r
+ this.object = nv;\r
+ } else if (binding.isImmutable() && parent!=null && parent instanceof JavaVariant) {\r
+ JavaObject jo = (JavaObject) parent;\r
+ VariantBinding vb = (VariantBinding) jo.binding;\r
+ Object nv = getBinding().create(newValue);\r
+ vb.setContent(jo.object, getBinding(), nv);\r
+ this.object = nv;\r
+ } else { \r
+ // Set value\r
+ getBinding().setValue(object, newValue);\r
+ }\r
+
+
+ // Notify
+ ListenerEntry le = listeners;
+ while (le!=null) {
+ DoubleInterestSet is = le.getInterestSet();
+ if (is.inNotifications()) {
+ Event e = new ValueAssigned( Bindings.DOUBLE, is.inValues() ? newValue : null );
+ emitEvent(le, e);
+ }
+ le = le.next;
+ }
+
+ } catch (BindingException e) {
+ throw new AccessorException(e);
+ } finally {\r
+ writeUnlock();\r
+ }
+ }
+
+ @Override
+ public void setValue(Binding binding, Object newValue) throws AccessorException {
+ try {
+ double nv = ((DoubleBinding)binding).getValue_(newValue);
+ setValue(nv);
+ } catch (BindingException e) {
+ throw new AccessorException(e);
+ }
+ }
+
+ @SuppressWarnings("unchecked")
+ @Override
+ public <T extends Accessor> T getComponent(ChildReference reference)
+ throws AccessorConstructionException {
+ if (reference==null) return (T) this;
+ throw new ReferenceException(reference.getClass()+" is not a subreference of BooleanType");
+ }
+
+ @Override
+ Event applyLocal(Event e, boolean makeRollback) throws AccessorException {
+ Event rollback = null;\r
+ if (e instanceof ValueAssigned) {\r
+ ValueAssigned va = (ValueAssigned) e;\r
+ if (va.newValue == null) throw new AccessorException("Double value expected, got null"); \r
+ if (makeRollback) rollback = new ValueAssigned(getBinding(), getValue(getBinding())); \r
+ setValue(va.newValue.getBinding(), va.newValue.getValue());\r
+ return rollback;\r
+ } else {\r
+ throw new AccessorException("Cannot apply "+e.getClass().getName()+" to Double");\r
+ }
+ }
+
+}