59 lines
1.9 KiB
Java
59 lines
1.9 KiB
Java
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package com.google.common.collect;
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import com.google.common.base.Preconditions;
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import java.io.Serializable;
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/* JADX INFO: Access modifiers changed from: package-private */
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/* loaded from: classes2.dex */
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public final class NaturalOrdering extends Ordering<Comparable> implements Serializable {
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static final NaturalOrdering INSTANCE = new NaturalOrdering();
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private static final long serialVersionUID = 0;
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private transient Ordering<Comparable> nullsFirst;
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private transient Ordering<Comparable> nullsLast;
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@Override // com.google.common.collect.Ordering, java.util.Comparator
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public final int compare(Comparable comparable, Comparable comparable2) {
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Preconditions.checkNotNull(comparable);
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Preconditions.checkNotNull(comparable2);
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return comparable.compareTo(comparable2);
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}
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@Override // com.google.common.collect.Ordering
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public final <S extends Comparable> Ordering<S> nullsFirst() {
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Ordering<S> ordering = (Ordering<S>) this.nullsFirst;
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if (ordering != null) {
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return ordering;
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}
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Ordering<S> nullsFirst = super.nullsFirst();
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this.nullsFirst = nullsFirst;
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return nullsFirst;
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}
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@Override // com.google.common.collect.Ordering
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public final <S extends Comparable> Ordering<S> nullsLast() {
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Ordering<S> ordering = (Ordering<S>) this.nullsLast;
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if (ordering != null) {
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return ordering;
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}
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Ordering<S> nullsLast = super.nullsLast();
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this.nullsLast = nullsLast;
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return nullsLast;
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}
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@Override // com.google.common.collect.Ordering
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public final <S extends Comparable> Ordering<S> reverse() {
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return ReverseNaturalOrdering.INSTANCE;
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}
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private NaturalOrdering() {
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}
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public final String toString() {
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return "Ordering.natural()";
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}
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private Object readResolve() {
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return INSTANCE;
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}
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}
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