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.binding.impl;
14 import java.lang.reflect.Array;
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15 import java.util.IdentityHashMap;
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16 import java.util.Iterator;
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17 import java.util.Set;
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19 import org.simantics.databoard.binding.ArrayBinding;
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20 import org.simantics.databoard.binding.Binding;
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21 import org.simantics.databoard.binding.LongBinding;
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22 import org.simantics.databoard.binding.error.BindingException;
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23 import org.simantics.databoard.binding.error.UnsupportedOperationException;
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24 import org.simantics.databoard.type.ArrayType;
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25 import org.simantics.databoard.type.LongType;
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26 import org.simantics.databoard.type.NumberType;
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27 import org.simantics.databoard.util.IdentityPair;
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30 * Binds Long[] type to long[] class.
32 public final class LongArrayBinding extends ArrayBinding {
34 public static LongArrayBinding createFrom(ArrayType type)
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36 return new LongArrayBinding(type, new LongBindingDefault((LongType) type.componentType));
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39 public LongArrayBinding(ArrayType type, Binding componentBinding)
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41 super(type, componentBinding);
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45 public Object create() {
50 public Object create(int length, Iterator<Object> values) {
51 long[] array = new long[length];
52 for(int i=0;i<length;++i)
53 array[i] = (Long)values.next();
58 public Object createDefault()
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59 throws BindingException
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61 NumberType nt = (NumberType) type().componentType;
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62 if (nt.getRange() == null) {
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63 return new long[ type().minLength() ];
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65 return super.createDefault();
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70 public void readFrom(Binding srcBinding, Object src, Object dst)
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71 throws BindingException {
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73 ArrayBinding sb = (ArrayBinding) srcBinding;
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74 // Src Component Binding
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75 LongBinding scb = (LongBinding) sb.getComponentBinding();
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77 long[] d = (long[]) dst;
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78 if (d.length != sb.size(src)) throw new BindingException("long[] is length immutable");
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80 for (int i=0; i<d.length; i++) {
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81 d[i] = scb.getValue_( sb.get(src, i) );
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86 public Object readFromTry(Binding srcBinding, Object src, Object dst)
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87 throws BindingException {
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89 ArrayBinding sb = (ArrayBinding) srcBinding;
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90 // Src Component Binding
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91 LongBinding scb = (LongBinding) sb.getComponentBinding();
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93 long[] d = (long[]) dst;
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94 int srcSize = sb.size(src);
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95 if (d.length != srcSize) d = new long[ srcSize ];
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97 for (int i=0; i<d.length; i++) {
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98 d[i] = scb.getValue_( sb.get(src, i) );
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104 * Create an array object.
105 * Note! The argument is consumed (is used in the result).
108 * @return an object that contains the array
110 public Object create(long[] array) {
111 return array.clone();
114 public Object create(Object[] values) {
115 long[] result = new long[values.length];
116 for (int i=0; i<values.length; i++)
117 result[i] = (Long) values[i];
123 public Object get(Object array, int index) throws BindingException {
124 if (!isInstance(array)) throw new BindingException("Unexpected class "+array.getClass().getSimpleName()+", long[] expected");
125 return ((long[])array)[index];
129 public void getAll(Object array, Object[] result) throws BindingException {
130 long[] a = (long[])array;
131 for (int i=0; i<a.length; i++)
136 public void set(Object array, int index, Object value)
137 throws BindingException {
138 long[] a = (long[])array;
139 a[index] = (Long) value;
143 public int size(Object array) throws BindingException {
144 if (!isInstance(array)) throw new BindingException("Unexpected class "+array.getClass().getSimpleName()+", long[] expected");
145 return ((long[])array).length;
149 public boolean isInstance(Object obj) {
150 return obj instanceof long[];
154 public boolean isImmutable() {
158 public long[] getArray(Object array) throws BindingException {
159 if (!isInstance(array)) throw new BindingException("Unexpected class "+array.getClass().getSimpleName()+", long[] expected");
160 return (long[]) array;
164 public int deepHashValue(Object value, IdentityHashMap<Object, Object> hashedObjects) throws BindingException {
166 long[] array = (long[]) value;
167 for (int i=0; i<array.length; i++) {
168 long element = array[i];
169 result = 31*result + (int) (element ^ (element >>> 32));
175 public int deepCompare(Object o1, Object o2,
176 Set<IdentityPair<Object, Object>> compareHistory)
177 throws BindingException {
178 long[] a1 = (long[]) o1;
179 long[] a2 = (long[]) o2;
184 if (dif!=0) return dif;
186 for (int i=0; i<l1; i++) {
189 dif = (v1<v2 ? -1 : (v1==v2 ? 0 : 1));
190 if (dif!=0) return dif;
196 public void add(Object array, int index, Object element)
197 throws BindingException, IndexOutOfBoundsException {
198 throw new UnsupportedOperationException();
202 public void remove(Object array, int index, int count) throws BindingException {
203 throw new UnsupportedOperationException();
207 public void setSize(Object array, int newSize) throws BindingException {
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208 int oldSize = Array.getLength(array);
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209 if (oldSize==newSize) return;
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210 throw new BindingException("long[] is length immutable");
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214 public boolean isResizable() {
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