1 /*******************************************************************************
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2 * Copyright (c) 2007, 2010 Association for Decentralized Information Management
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3 * in Industry THTH ry.
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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.utils.datastructures.map;
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16 * Description associativity of dimensions.
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17 * The maximum number of dimensions is 32.
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19 * @author Toni Kalajainen <toni.kalajainen@vtt.fi>
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21 public final class Associativity {
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23 public static Associativity of(boolean...dimensionAssociativity)
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25 return new Associativity(dimensionAssociativity);
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28 public static Associativity[] fullAssociativity(int level)
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30 int count = (1 << level)-1;
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31 Associativity[] result = new Associativity[count];
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32 for (int i=0; i<count; i++)
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33 result[i] = new Associativity(level, i);
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37 public int dimensionAssociativity;
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40 public Associativity(boolean...dimensionAssociativity)
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42 if (dimensionAssociativity==null || dimensionAssociativity.length>32)
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43 throw new IllegalArgumentException();
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46 for (boolean b : dimensionAssociativity) {
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47 if (b) this.dimensionAssociativity |= mask;
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51 level = dimensionAssociativity.length;
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53 public Associativity(int level, int dimensionAssociativity)
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55 this.dimensionAssociativity = dimensionAssociativity;
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60 public int hashCode() {
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61 return dimensionAssociativity;
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65 public boolean equals(Object obj) {
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66 if (obj == null) return false;
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67 if (!(obj.getClass().equals(this.getClass()))) return false;
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68 Associativity other = (Associativity) obj;
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69 return dimensionAssociativity == other.dimensionAssociativity;
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72 public int getLevel() {
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