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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 abstract expression node represents a function to execute.
*
* @author baldersheim
* @author Simon Thoresen Hult
*/
public class RelevanceNode extends ExpressionNode {
public static final int classId = registerClass(0x4000 + 59, RelevanceNode.class);
private FloatResultNode relevance = new FloatResultNode();
public RelevanceNode() {
}
@Override
public void onPrepare() {
}
@Override
public boolean onExecute() {
return true;
}
@Override
protected int onGetClassId() {
return classId;
}
@Override
protected void onSerialize(Serializer buf) {
super.onSerialize(buf);
relevance.serialize(buf);
}
@Override
protected void onDeserialize(Deserializer buf) {
super.onDeserialize(buf);
relevance.deserialize(buf);
}
@Override
public RelevanceNode clone() {
RelevanceNode obj = (RelevanceNode)super.clone();
obj.relevance = (FloatResultNode)relevance.clone();
return obj;
}
@Override
public void visitMembers(ObjectVisitor visitor) {
super.visitMembers(visitor);
visitor.visit("relevance", relevance);
}
@Override
public ResultNode getResult() {
return relevance;
}
@Override
protected boolean equalsExpression(ExpressionNode obj) {
return relevance.equals(((RelevanceNode)obj).relevance);
}
}
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