Package com.hp.hpl.jena.sparql.function.library.leviathan

Source Code of com.hp.hpl.jena.sparql.function.library.leviathan.cube

/*
* 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.
*/

package com.hp.hpl.jena.sparql.function.library.leviathan;

import java.math.BigInteger;

import com.hp.hpl.jena.sparql.ARQInternalErrorException;
import com.hp.hpl.jena.sparql.expr.NodeValue;
import com.hp.hpl.jena.sparql.expr.nodevalue.XSDFuncOp;
import com.hp.hpl.jena.sparql.function.FunctionBase1;

public class cube extends FunctionBase1 {

    @Override
    public NodeValue exec(NodeValue v) {
        switch (XSDFuncOp.classifyNumeric("cube", v))
        {
            case OP_INTEGER:
                BigInteger i = v.getInteger();
                return NodeValue.makeInteger( i.pow(3) );
            case OP_DECIMAL:
                double dec = v.getDecimal().doubleValue() ;
                return NodeValue.makeDecimal( Math.pow(dec, 3d)) ;
            case OP_FLOAT:
                // TODO Should squaring a float keep it a float?
            case OP_DOUBLE:
                return NodeValue.makeDouble( Math.pow(v.getDouble(), 3d) ) ;
            default:
                throw new ARQInternalErrorException("Unrecognized numeric operation : "+v) ;
        }
    }

}
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