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/*
* Copyright 2015 Open Networking Laboratory
*
* 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 org.onosproject.net;
import com.google.common.base.MoreObjects;
/**
* Implementation of Lambda simply designated by an index number of wavelength.
*/
public class IndexedLambda implements Lambda {
private final long index;
/**
* Creates an instance representing the wavelength specified by the given index number.
* It is recommended to use {@link Lambda#indexedLambda(long)} unless you want to use the
* concrete type, IndexedLambda, directly.
*
* @param index index number of wavelength
*/
public IndexedLambda(long index) {
this.index = index;
}
/**
* Returns the index number of lambda.
*
* @return the index number of lambda
*/
public long index() {
return index;
}
@Override
public int hashCode() {
return Long.hashCode(index);
}
@Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (!(obj instanceof IndexedLambda)) {
return false;
}
final IndexedLambda that = (IndexedLambda) obj;
return this.index == that.index;
}
@Override
public String toString() {
return MoreObjects.toStringHelper(this)
.add("lambda", index)
.toString();
}
}
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