1 /*******************************************************************************
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2 * Copyright (c) 2012, 2013 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.objmap.graph.rules.range;
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14 import java.lang.reflect.InvocationTargetException;
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15 import java.lang.reflect.Method;
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17 import org.simantics.objmap.exceptions.MappingException;
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21 * Accessor for mapped value. Uses two methods:
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22 * - Getter: returns the current value.
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23 * - Setter: sets the current value. The value may be null. (if setter parameter is primitive, null value is not mapped).
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25 * @author Marko Luukkainen <marko.luukkainen@vtt.fi>
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29 public class CompoundGetSetValueAccessor<Range,T> implements IRangeAccessor<Range,T> {
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31 private Method getter;
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32 private Method setter;
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33 private boolean primitive;
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35 public CompoundGetSetValueAccessor(Method getter, Method setter) {
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36 this.getter = getter;
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37 this.setter = setter;
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38 this.primitive = setter.getParameterTypes()[0].isPrimitive();
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41 @SuppressWarnings("unchecked")
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42 public T get(Range element) throws MappingException {
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44 return (T) getter.invoke(element);
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45 } catch (IllegalArgumentException e) {
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46 throw new MappingException(e);
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47 } catch (IllegalAccessException e) {
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48 throw new MappingException(e);
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49 } catch (InvocationTargetException e) {
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50 throw new MappingException(e);
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55 public boolean set(Range element, T value)
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56 throws MappingException {
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57 if (value == null && primitive)
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59 if (equal(get(element),value))
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62 setter.invoke(element, value);
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63 } catch (IllegalArgumentException e) {
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64 throw new MappingException(e);
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65 } catch (IllegalAccessException e) {
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66 throw new MappingException(e);
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67 } catch (InvocationTargetException e) {
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68 throw new MappingException(e);
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74 private boolean equal(Object v1, Object v2) {
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79 } else if (v2 == null) {
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82 return v1.equals(v2);
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