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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;
/**
* This is an abstract super-class for all non-unary functions that operator on bit values.
*
* @author baldersheim
* @author Simon Thoresen Hult
*/
public abstract class BitFunctionNode extends NumericFunctionNode {
public static final int classId = registerClass(0x4000 + 47, BitFunctionNode.class);
@Override
protected int onGetClassId() {
return classId;
}
@Override
protected void onArgument(final ResultNode arg, ResultNode result) {
onArgument(arg, (IntegerResultNode)result);
}
@Override
protected void onPrepareResult() {
setResult(new IntegerResultNode(0));
}
/**
* Method for performing onArgument on integers, the only type supported for bit operations.
*
* @param arg Argument given to the bit function.
* @param result Place to store the result.
*/
protected abstract void onArgument(final ResultNode arg, IntegerResultNode result);
}
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