/**
* Copyright 2014 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.schedulers;
/**
* Composite class that takes a value and a timestamp and wraps them.
* @param <T> the value type held along with the timestamp
*/
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 the timestamp, expressed in milliseconds.
*
* @return timestamp in milliseconds
*/
public long
getTimestampMillis() {
return
timestampMillis;
}
/**
* Returns the value embedded in the {@code Timestamped} object.
*
* @return the value
*/
public T
getValue() {
return
value;
}
@
Override
public boolean
equals(
Object obj) {
if (this ==
obj) {
return true;
}
if (
obj == null) {
return false;
}
if (!(
obj instanceof
Timestamped)) {
return false;
}
Timestamped<?>
other = (
Timestamped<?>)
obj;
return
timestampMillis ==
other.
timestampMillis && ((
value ==
other.
value) || (
value != null &&
value.
equals(
other.
value)));
}
@
Override
public int
hashCode() {
int
prime = 31;
int
result = 1;
result =
prime *
result + (int) (
timestampMillis ^ (
timestampMillis >>> 32));
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());
}
}