/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file 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 "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/* $Id$ */
package org.apache.fop.fo.expr;
import org.apache.fop.datatypes.Numeric;
import org.apache.fop.fo.properties.Property;
/**
* Class for managing the "max" Number Function. See Sec. 5.10.1 in the XSL-FO
* standard.
*/
public class MaxFunction extends FunctionBase {
/** {@inheritDoc} */
public int getRequiredArgsCount() {
return 2;
}
/** {@inheritDoc} */
public Property eval(Property[] args, PropertyInfo pInfo) throws PropertyException {
Numeric n1 = args[0].getNumeric();
Numeric n2 = args[1].getNumeric();
if (n1 == null || n2 == null) {
throw new PropertyException("Non numeric operands to max function");
}
return (Property) NumericOp.max(n1, n2);
}
}