io.github.bakedlibs.dough.collections.Pair Maven / Gradle / Ivy

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This is the complete API of dough.

There is a newer version: 1.2.0

package io.github.bakedlibs.dough.collections;

import javax.annotation.Nonnull;
import javax.annotation.Nullable;
import java.util.Map;
import java.util.Objects;

public class Pair {

    private P firstValue;
    private S secondValue;

    public Pair(P a, S b) {
        this.firstValue = a;
        this.secondValue = b;
    }

    public Pair(@Nonnull Map.Entry mapEntry) {
        this(mapEntry.getKey(), mapEntry.getValue());
    }

    public Pair(@Nonnull OptionalPair pair) {
        this(pair.getFirstValue().orElse(null), pair.getSecondValue().orElse(null));
    }

    public @Nullable P getFirstValue() {
        return this.firstValue;
    }

    public @Nullable S getSecondValue() {
        return this.secondValue;
    }

    public void setFirstValue(@Nullable P firstValue) {
        this.firstValue = firstValue;
    }

    public void setSecondValue(@Nullable S secondValue) {
        this.secondValue = secondValue;
    }

    public boolean equals(final Object o) {
        if (o == this) {
            return true;
        }
        if (!(o instanceof Pair)) {
            return false;
        }
        final Pair other = (Pair) o;
        if (!Objects.equals(this.firstValue, other.firstValue)) {
            return false;
        }
        return Objects.equals(this.secondValue, other.secondValue);
    }

    public int hashCode() {
        final int prime = 59;
        int result = 1;
        result = result * prime + (firstValue == null ? 43 : firstValue.hashCode());
        result = result * prime + (secondValue == null ? 43 : secondValue.hashCode());
        return result;
    }

    public @Nonnull String toString() {
        return "Pair(firstValue=" + firstValue + ", secondValue=" + secondValue + ")";
    }
}