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.binary;
14 import java.io.IOException;
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16 import org.simantics.databoard.Bindings;
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17 import org.simantics.databoard.accessor.Accessor;
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18 import org.simantics.databoard.accessor.IntegerAccessor;
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19 import org.simantics.databoard.accessor.error.AccessorConstructionException;
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20 import org.simantics.databoard.accessor.error.AccessorException;
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21 import org.simantics.databoard.accessor.error.ReferenceException;
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22 import org.simantics.databoard.accessor.event.Event;
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23 import org.simantics.databoard.accessor.event.ValueAssigned;
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24 import org.simantics.databoard.accessor.file.FileIntegerAccessor;
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25 import org.simantics.databoard.accessor.impl.AccessorParams;
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26 import org.simantics.databoard.accessor.impl.ListenerEntry;
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27 import org.simantics.databoard.accessor.interestset.IntegerInterestSet;
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28 import org.simantics.databoard.accessor.reference.ChildReference;
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29 import org.simantics.databoard.binding.Binding;
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30 import org.simantics.databoard.binding.IntegerBinding;
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31 import org.simantics.databoard.binding.error.BindingException;
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32 import org.simantics.databoard.type.IntegerType;
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33 import org.simantics.databoard.util.binary.Blob;
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35 public class BinaryInteger extends BinaryObject implements IntegerAccessor, FileIntegerAccessor {
37 public BinaryInteger(BinaryObject parent, Blob blob, IntegerType type, AccessorParams params)
38 throws AccessorConstructionException {
39 super(parent, blob, type, params);
42 } catch (IOException e) {
43 throw new AccessorConstructionException(e);
48 public IntegerType type() {
49 return (IntegerType) type;
53 public int getValue() throws AccessorException {
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59 } catch (IOException e) {
60 throw new AccessorException(e);
67 Event applyLocal(Event e, boolean makeRollback) throws AccessorException {
68 Event rollback = makeRollback ? new ValueAssigned( Bindings.INTEGER, getValue() ) : null;
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69 if (e instanceof ValueAssigned) {
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70 ValueAssigned va = (ValueAssigned) e;
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71 if (va.newValue == null) throw new AccessorException("Integer value expected, got null");
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72 setValueNoflush(va.newValue.getBinding(), va.newValue.getValue());
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75 throw new AccessorException("Cannot apply "+e.getClass().getName()+" to Integer");
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79 @SuppressWarnings("unchecked")
81 public <T extends Accessor> T getComponent(ChildReference reference)
82 throws AccessorConstructionException {
83 if (reference==null) return (T) this;
84 throw new ReferenceException(reference.getClass()+" is not a subreference of IntegerType");
88 public Object getValue(Binding binding) throws AccessorException {
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92 IntegerBinding bb = (IntegerBinding) binding;
95 } catch(BindingException e) {
96 throw new AccessorException(e);
102 public void setValueNoflush(int newValue) throws AccessorException {
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108 b.writeInt( newValue );
111 ListenerEntry le = listeners;
113 IntegerInterestSet is = le.getInterestSet();
114 if (is.inNotifications()) {
115 Event e = new ValueAssigned( Bindings.INTEGER, is.inValues() ? newValue : null );
121 } catch (IOException e) {
122 throw new AccessorException(e);
129 public void setValue(int newValue) throws AccessorException {
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133 setValueNoflush(newValue);
135 } catch (IOException e) {
136 throw new AccessorException(e);
143 public void setValueNoflush(Binding binding, Object newValue)
144 throws AccessorException {
146 int nv = ((IntegerBinding)binding).getValue_(newValue);
148 } catch (BindingException e) {
149 throw new AccessorException(e);