1 | // License: GPL. For details, see LICENSE file.
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2 | package org.openstreetmap.josm.data.osm;
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3 |
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4 | import java.io.Serializable;
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5 | import java.util.Objects;
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6 |
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7 | import org.openstreetmap.josm.tools.CheckParameterUtil;
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8 |
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9 | public class RelationMemberData implements PrimitiveId, Serializable {
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10 |
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11 | private static final long serialVersionUID = 381392198209333319L;
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12 | private final String role;
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13 | private final long memberId;
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14 | private final OsmPrimitiveType memberType;
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15 |
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16 | /**
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17 | * Constructs a new {@code RelationMemberData}.
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18 | * @param role member role - can be null
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19 | * @param type member type - cannot be null
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20 | * @param id member id - cannot be null
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21 | * @throws IllegalArgumentException is type or id is null
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22 | */
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23 | public RelationMemberData(String role, OsmPrimitiveType type, long id) {
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24 | CheckParameterUtil.ensureParameterNotNull(type, "type");
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25 | this.role = role == null ? "" : role;
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26 | this.memberType = type;
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27 | this.memberId = id;
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28 | }
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29 |
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30 | /**
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31 | * Constructs a new {@code RelationMemberData}.
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32 | * @param role member role - can be null
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33 | * @param primitive member type and id - cannot be null
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34 | * @throws NullPointerException if primitive is null
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35 | */
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36 | public RelationMemberData(String role, PrimitiveId primitive) {
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37 | this(role, primitive.getType(), primitive.getUniqueId());
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38 | }
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39 |
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40 | /**
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41 | * Get member id.
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42 | * @return member id
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43 | */
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44 | public long getMemberId() {
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45 | return memberId;
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46 | }
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47 |
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48 | /**
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49 | * Get member role.
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50 | * @return member role
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51 | */
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52 | public String getRole() {
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53 | return role;
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54 | }
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55 |
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56 | /**
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57 | * Get member type.
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58 | * @return member type
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59 | */
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60 | public OsmPrimitiveType getMemberType() {
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61 | return memberType;
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62 | }
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63 |
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64 | /**
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65 | * Determines if this member has a role.
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66 | * @return {@code true} if this member has a role
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67 | */
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68 | public boolean hasRole() {
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69 | return !"".equals(role);
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70 | }
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71 |
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72 | @Override
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73 | public String toString() {
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74 | return (memberType != null ? memberType.getAPIName() : "undefined") + ' ' + memberId;
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75 | }
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76 |
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77 | /**
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78 | * PrimitiveId implementation. Returns the same value as {@link #getMemberType()}
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79 | */
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80 | @Override
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81 | public OsmPrimitiveType getType() {
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82 | return memberType;
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83 | }
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84 |
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85 | /**
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86 | * PrimitiveId implementation. Returns the same value as {@link #getMemberId()}
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87 | */
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88 | @Override
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89 | public long getUniqueId() {
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90 | return memberId;
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91 | }
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92 |
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93 | @Override
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94 | public boolean isNew() {
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95 | return memberId <= 0;
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96 | }
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97 |
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98 | @Override
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99 | public int hashCode() {
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100 | return Objects.hash(role, memberId, memberType);
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101 | }
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102 |
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103 | @Override
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104 | public boolean equals(Object obj) {
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105 | if (this == obj) return true;
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106 | if (obj == null || getClass() != obj.getClass()) return false;
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107 | RelationMemberData that = (RelationMemberData) obj;
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108 | return memberId == that.memberId &&
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109 | memberType == that.memberType &&
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110 | Objects.equals(role, that.role);
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111 | }
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112 | }
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