com.phloc.commons.concurrent.ComparatorThreadID Maven / Gradle / Ivy
/**
* Copyright (C) 2006-2015 phloc systems
* http://www.phloc.com
* office[at]phloc[dot]com
*
* 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.phloc.commons.concurrent;
import javax.annotation.Nonnull;
import javax.annotation.Nullable;
import javax.annotation.concurrent.NotThreadSafe;
import com.phloc.commons.CGlobal;
import com.phloc.commons.compare.AbstractIntegerComparator;
import com.phloc.commons.compare.ESortOrder;
/**
* {@link java.util.Comparator} for ordering {@link Thread} objects by their ID.
*
* @author Philip Helger
*/
@NotThreadSafe
public final class ComparatorThreadID extends AbstractIntegerComparator
{
public ComparatorThreadID ()
{
super ();
}
public ComparatorThreadID (@Nonnull final ESortOrder eSortOrder)
{
super (eSortOrder);
}
@Override
protected long asLong (@Nullable final Thread aThread)
{
return aThread == null ? CGlobal.ILLEGAL_ULONG : aThread.getId ();
}
}