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// Copyright 2016 Yahoo Inc. 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 function assign a fixed width bucket to each input value
*
* @author <a href="mailto:havardpe@yahoo-inc.com">Haavard Pettersen</a>
* @author <a href="mailto:simon@yahoo-inc.com">Simon Thoresen</a>
*/
public class RangeBucketPreDefFunctionNode extends UnaryFunctionNode {
public static final int classId = registerClass(0x4000 + 76, RangeBucketPreDefFunctionNode.class);
private ResultNodeVector predef = null;
/**
* Constructs an empty result node.
*/
public RangeBucketPreDefFunctionNode() {
// empty
}
/**
* Create a bucket expression with the given width and the given subexpression
*
* @param v predefined bucket list
* @param arg The argument for this function.
*/
public RangeBucketPreDefFunctionNode(ResultNodeVector v, ExpressionNode arg) {
addArg(arg);
predef = v;
}
/**
* Obtain the predefined bucket list of this bucket expression
*
* @return predefined bucket list for this expression
*/
public ResultNodeVector getBucketList() {
return predef;
}
@Override
protected int onGetClassId() {
return classId;
}
@Override
protected void onSerialize(Serializer buf) {
super.onSerialize(buf);
serializeOptional(buf, predef);
}
@Override
protected void onDeserialize(Deserializer buf) {
super.onDeserialize(buf);
predef = (ResultNodeVector)deserializeOptional(buf);
}
@Override
protected boolean equalsUnaryFunction(UnaryFunctionNode obj) {
return equals(predef, ((RangeBucketPreDefFunctionNode)obj).predef);
}
@Override
public RangeBucketPreDefFunctionNode clone() {
RangeBucketPreDefFunctionNode obj = (RangeBucketPreDefFunctionNode)super.clone();
if (predef != null) {
obj.predef = (ResultNodeVector)predef.clone();
}
return obj;
}
@Override
public void visitMembers(ObjectVisitor visitor) {
super.visitMembers(visitor);
visitor.visit("predef", predef);
}
}
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