com.google.common.collect.AllEqualOrdering Maven / Gradle / Ivy
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This artifact provides a single jar that contains all classes required to use remote EJB and JMS, including
all dependencies. It is intended for use by those not using maven, maven users should just import the EJB and
JMS BOM's instead (shaded JAR's cause lots of problems with maven, as it is very easy to inadvertently end up
with different versions on classes on the class path).
/*
* Copyright (C) 2012 The Guava Authors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.common.collect;
import com.google.common.annotations.GwtCompatible;
import java.io.Serializable;
import java.util.List;
import javax.annotation.CheckForNull;
import org.checkerframework.checker.nullness.qual.Nullable;
/**
* An ordering that treats all references as equals, even nulls.
*
* @author Emily Soldal
*/
@GwtCompatible(serializable = true)
@ElementTypesAreNonnullByDefault
final class AllEqualOrdering extends Ordering<@Nullable Object> implements Serializable {
static final AllEqualOrdering INSTANCE = new AllEqualOrdering();
@Override
public int compare(@CheckForNull Object left, @CheckForNull Object right) {
return 0;
}
@Override
public List sortedCopy(Iterable iterable) {
return Lists.newArrayList(iterable);
}
@Override
public ImmutableList immutableSortedCopy(Iterable iterable) {
return ImmutableList.copyOf(iterable);
}
@SuppressWarnings("unchecked")
@Override
public Ordering reverse() {
return (Ordering) this;
}
private Object readResolve() {
return INSTANCE;
}
@Override
public String toString() {
return "Ordering.allEqual()";
}
private static final long serialVersionUID = 0;
}