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* distributed with this work for additional information
* regarding copyright ownership. The ASF 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
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package org.apache.cayenne.exp.parser;
import org.apache.cayenne.util.ConversionUtil;
/**
* @since 4.0
*/
public abstract class EvaluatedBitwiseNode extends EvaluatedNode {
protected EvaluatedBitwiseNode(int i) {
super(i);
}
@Override
protected Object evaluateSubNode(Object o, Object[] evaluatedChildren) throws Exception {
Long result = ConversionUtil.toLong(o, Long.MIN_VALUE);
if(result == Long.MIN_VALUE) {
return null;
}
for (int i = 1; i < evaluatedChildren.length; i++) {
Long value = ConversionUtil.toLong(evaluateChild(i, o), Long.MIN_VALUE);
if (value == Long.MIN_VALUE) {
return null;
}
result = op(result, value);
}
return result;
}
@Override
protected int getRequiredChildrenCount() {
return 1;
}
protected abstract long op(long result, long arg);
}