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Timestamped.java
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/**
* Copyright 2013 Netflix, Inc.
*
* 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 rx.util;
/**
* Composite class that takes a value and a timestamp and wraps them.
*/
public final class Timestamped<T> {
private final long timestampMillis;
private final T value;
public Timestamped(long timestampMillis, T value) {
this.value = value;
this.timestampMillis = timestampMillis;
}
/**
* Returns time timestamp, in milliseconds.
*
* @return timestamp in milliseconds
*/
public long getTimestampMillis() {
return timestampMillis;
}
/**
* Returns the value.
*
* @return the value
*/
public T getValue() {
return value;
}
@Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (!(obj instanceof Timestamped)) {
return false;
}
Timestamped<?> other = (Timestamped<?>) obj;
if (timestampMillis != other.timestampMillis) {
return false;
}
if (value == null) {
if (other.value != null) {
return false;
}
} else if (!value.equals(other.value)) {
return false;
}
return true;
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + (int) (timestampMillis ^ (timestampMillis));
result = prime * result + ((value == null) ? 0 : value.hashCode());
return result;
}
@Override
public String toString() {
return String.format("Timestamped(timestampMillis = %d, value = %s)", timestampMillis, value.toString());
}
}