1 /*******************************************************************************
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2 * Copyright (c) 2010 Association for Decentralized Information Management in
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4 * All rights reserved. This program and the accompanying materials
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5 * are made available under the terms of the Eclipse Public License v1.0
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6 * which accompanies this distribution, and is available at
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7 * http://www.eclipse.org/legal/epl-v10.html
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10 * VTT Technical Research Centre of Finland - initial API and implementation
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11 *******************************************************************************/
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12 package org.simantics.databoard.accessor.java;
14 import org.simantics.databoard.Bindings;
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15 import org.simantics.databoard.accessor.Accessor;
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16 import org.simantics.databoard.accessor.FloatAccessor;
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17 import org.simantics.databoard.accessor.error.AccessorConstructionException;
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18 import org.simantics.databoard.accessor.error.AccessorException;
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19 import org.simantics.databoard.accessor.error.ReferenceException;
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20 import org.simantics.databoard.accessor.event.Event;
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21 import org.simantics.databoard.accessor.event.ValueAssigned;
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22 import org.simantics.databoard.accessor.impl.AccessorParams;
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23 import org.simantics.databoard.accessor.impl.ListenerEntry;
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24 import org.simantics.databoard.accessor.interestset.FloatInterestSet;
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25 import org.simantics.databoard.accessor.reference.ChildReference;
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26 import org.simantics.databoard.binding.ArrayBinding;
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27 import org.simantics.databoard.binding.Binding;
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28 import org.simantics.databoard.binding.FloatBinding;
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29 import org.simantics.databoard.binding.RecordBinding;
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30 import org.simantics.databoard.binding.VariantBinding;
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31 import org.simantics.databoard.binding.error.BindingException;
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32 import org.simantics.databoard.type.FloatType;
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34 public class JavaFloat extends JavaObject implements FloatAccessor {
36 public JavaFloat(Accessor parent, FloatBinding binding, Object object, AccessorParams params) {
37 super(parent, binding, object, params);
40 public FloatBinding getBinding() {
41 return (FloatBinding) binding;
45 public FloatType type() {
46 return getBinding().type();
50 public float getValue() throws AccessorException {
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53 return getBinding().getValue_(object);
54 } catch (BindingException e) {
55 throw new AccessorException(e);
62 public void setValue(float newValue) throws AccessorException {
63 if (newValue == getValue()) return;
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66 if (binding.isImmutable() && parent!=null && parent instanceof JavaArray) {
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67 JavaObject jo = (JavaObject) parent;
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68 ArrayBinding ab = (ArrayBinding) jo.binding;
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69 Object nv = getBinding().create(newValue);
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70 ab.set(jo.object, (Integer)keyInParent, nv);
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72 } else if (binding.isImmutable() && parent!=null && parent instanceof JavaRecord) {
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73 JavaObject jo = (JavaObject) parent;
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74 RecordBinding rb = (RecordBinding) jo.binding;
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75 Object nv = getBinding().create(newValue);
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76 rb.setComponent(jo.object, (Integer)keyInParent, nv);
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78 } else if (binding.isImmutable() && parent!=null && parent instanceof JavaVariant) {
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79 JavaObject jo = (JavaObject) parent;
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80 VariantBinding vb = (VariantBinding) jo.binding;
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81 Object nv = getBinding().create(newValue);
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82 vb.setContent(jo.object, getBinding(), nv);
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86 getBinding().setValue(object, newValue);
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91 ListenerEntry le = listeners;
93 FloatInterestSet is = le.getInterestSet();
94 if (is.inNotifications()) {
95 Event e = new ValueAssigned( Bindings.FLOAT, is.inValues() ? newValue : null );
101 } catch (BindingException e) {
102 throw new AccessorException(e);
109 public void setValue(Binding binding, Object newValue) throws AccessorException {
111 float nv = ((FloatBinding)binding).getValue_(newValue);
113 } catch (BindingException e) {
114 throw new AccessorException(e);
118 @SuppressWarnings("unchecked")
120 public <T extends Accessor> T getComponent(ChildReference reference)
121 throws AccessorConstructionException {
122 if (reference==null) return (T) this;
124 throw new ReferenceException(reference.getClass()+" is not a subreference of BooleanType");
128 Event applyLocal(Event e, boolean makeRollback) throws AccessorException {
129 Event rollback = makeRollback ? new ValueAssigned( Bindings.FLOAT, getValue() ) : null;
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130 if (e instanceof ValueAssigned) {
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131 ValueAssigned va = (ValueAssigned) e;
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132 if (va.newValue == null) throw new AccessorException("Float value expected, got null");
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133 setValue(va.newValue.getBinding(), va.newValue.getValue());
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136 throw new AccessorException("Cannot apply "+e.getClass().getName()+" to Float");
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