Last change
on this file since 519 was 519, checked in by wouter, 17 months ago |
#169 added geniusweb sources hard copy in the project as I need to hack it a bit.
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File size:
1.1 KB
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[519] | 1 | package geniusweb.issuevalue;
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| 2 |
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| 3 | import com.fasterxml.jackson.annotation.JsonValue;
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| 4 |
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| 5 | /**
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| 6 | * A value for a discrete issue. Constructor guarantees this is non-null and
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| 7 | * non-empty. immutable.
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| 8 | */
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| 9 | public class DiscreteValue implements Value {
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| 10 |
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| 11 | @JsonValue // serializes nicely but requires custom deserializer.
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| 12 | private final String value;
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| 13 |
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| 14 | public DiscreteValue(String value) {
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| 15 | if (value == null || value.isEmpty())
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| 16 | throw new NullPointerException(
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| 17 | "value must be non-null and non-empty");
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| 18 | this.value = value;
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| 19 | }
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| 20 |
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| 21 | @Override
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| 22 | public int hashCode() {
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| 23 | final int prime = 31;
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| 24 | int result = 1;
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| 25 | result = prime * result + ((value == null) ? 0 : value.hashCode());
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| 26 | return result;
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| 27 | }
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| 28 |
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| 29 | @Override
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| 30 | public boolean equals(Object obj) {
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| 31 | if (this == obj)
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| 32 | return true;
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| 33 | if (obj == null)
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| 34 | return false;
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| 35 | if (getClass() != obj.getClass())
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| 36 | return false;
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| 37 | DiscreteValue other = (DiscreteValue) obj;
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| 38 | if (value == null) {
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| 39 | if (other.value != null)
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| 40 | return false;
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| 41 | } else if (!value.equals(other.value))
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| 42 | return false;
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| 43 | return true;
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| 44 | }
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| 45 |
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| 46 | @Override
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| 47 | public String toString() {
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| 48 | return "\"" + value + "\"";
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| 49 | }
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| 50 |
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| 51 | public String getValue() {
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| 52 | return value;
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| 53 | }
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| 54 | }
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