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Elasticsearch subproject :server
/*
* Licensed to Elasticsearch under one or more contributor
* license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright
* ownership. Elasticsearch licenses this file to you 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.elasticsearch.search;
import org.elasticsearch.common.io.stream.StreamInput;
import org.elasticsearch.common.io.stream.StreamOutput;
import org.elasticsearch.common.io.stream.Writeable;
import org.elasticsearch.common.unit.TimeValue;
import java.io.IOException;
import java.util.Objects;
/**
* A scroll enables scrolling of search request. It holds a {@link #keepAlive()} time that
* will control how long to keep the scrolling resources open.
*
*
*/
public final class Scroll implements Writeable {
private final TimeValue keepAlive;
public Scroll(StreamInput in) throws IOException {
this.keepAlive = in.readTimeValue();
}
/**
* Constructs a new scroll of the provided keep alive.
*/
public Scroll(TimeValue keepAlive) {
this.keepAlive = Objects.requireNonNull(keepAlive, "keepAlive must not be null");
}
/**
* How long the resources will be kept open to support the scroll request.
*/
public TimeValue keepAlive() {
return keepAlive;
}
@Override
public void writeTo(StreamOutput out) throws IOException {
out.writeTimeValue(keepAlive);
}
@Override
public boolean equals(Object o) {
if (this == o) {
return true;
}
if (o == null || getClass() != o.getClass()) {
return false;
}
Scroll scroll = (Scroll) o;
return Objects.equals(keepAlive, scroll.keepAlive);
}
@Override
public int hashCode() {
return Objects.hash(keepAlive);
}
@Override
public String toString() {
return "Scroll{keepAlive=" + keepAlive + '}';
}
}