3 public class Relation {
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4 private long id = -1;
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5 private long pid = -1;
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6 private long tid = -1;
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8 public Relation(long id, long pid, long tid){
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18 public long getId() {
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21 public long getPid() {
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24 public long getTid() {
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28 public void setPid(long pid) {
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32 public void setTid(long tid) {
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