/*
* Copyright 2008 Fedora Commons
*
* Licensed 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.
*/
package org.mulgara.sparql.parser.cst;
import java.util.ArrayList;
import java.util.List;
/**
* Describes an operator expression that is associative.
*
* @created Feb 13, 2008
* @author Paula Gearon
* @copyright © 2008 <a href="http://www.fedora-commons.org/">Fedora Commons</a>
* @licence <a href="{@docRoot}/../LICENCE.txt">Apache License, Version 2.0</a>
*/
public abstract class AssociativeNumericOpExpression extends AbstractNaryOperator<NumericExpression> implements NumericExpression {
/**
* Creates the binary relation
* @param lhs The left hand side of the operation
* @param rhs The right hand side of the operation
*/
public AssociativeNumericOpExpression(NumericExpression lhs, NumericExpression rhs) {
assert !this.getClass().isInstance(lhs);
operands = new ArrayList<NumericExpression>();
operands.add(lhs);
operands.add(rhs);
}
/**
* Creates an operation to be expanded on
* @param operands The operand list to initialize with
*/
public AssociativeNumericOpExpression(List<NumericExpression> operands) {
assert operands.size() >= 2;
this.operands = operands;
}
}