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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.searchlib.expression;
import com.yahoo.vespa.objects.Deserializer;
import com.yahoo.vespa.objects.ObjectVisitor;
import com.yahoo.vespa.objects.Serializer;
/**
* This is an integer bucket value
*
* @author <a href="mailto:havardpe@yahoo-inc.com">Haavard Pettersen</a>
* @author Simon Thoresen Hult
*/
public class IntegerBucketResultNode extends BucketResultNode {
public static final int classId = registerClass(0x4000 + 101, IntegerBucketResultNode.class);
private long from = 0; // bucket start, inclusive
private long to = 0; // bucket end, exclusive
/**
* Constructs an empty result node.
*/
public IntegerBucketResultNode() {
// empty
}
/**
* Create a bucket with the given limits
*
* @param from bucket start
* @param to bucket end
*/
public IntegerBucketResultNode(long from, long to) {
this.from = from;
this.to = to;
}
/**
* Obtain the bucket start
*
* @return bucket start
*/
public long getFrom() {
return from;
}
/**
* Obtain the bucket end
*
* @return bucket end
*/
public long getTo() {
return to;
}
@Override
public boolean empty() {
return to == from;
}
@Override
protected int onGetClassId() {
return classId;
}
@Override
protected void onSerialize(Serializer buf) {
buf.putLong(null, from);
buf.putLong(null, to);
}
@Override
protected void onDeserialize(Deserializer buf) {
from = buf.getLong(null);
to = buf.getLong(null);
}
@Override
protected int onCmp(ResultNode rhs) {
if (classId != rhs.getClassId()) {
return (classId - rhs.getClassId());
}
IntegerBucketResultNode b = (IntegerBucketResultNode)rhs;
if (from < b.from) return -1;
if (from > b.from) return 1;
if (to < b.to) return -1;
if (to > b.to) return 1;
return 0;
}
@Override
public int hashCode() {
return super.hashCode() + (int)from + (int)to;
}
@Override
public void visitMembers(ObjectVisitor visitor) {
super.visitMembers(visitor);
visitor.visit("from", from);
visitor.visit("to", to);
}
}
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