org.apache.sysml.parser.BuiltinConstant.java Source code

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Here is the source code for org.apache.sysml.parser.BuiltinConstant.java

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/*
 * 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 org.apache.sysml.parser;

import org.apache.commons.lang3.EnumUtils;

/**
 * These are the builtin constants
 */
public enum BuiltinConstant {
    Inf(Double.POSITIVE_INFINITY), NaN(Double.NaN), pi(Math.PI);

    private DoubleIdentifier _id;

    private BuiltinConstant(double d) {
        this._id = new DoubleIdentifier(d);
    }

    public DoubleIdentifier get() {
        return this._id;
    }

    public static boolean contains(String name) {
        return EnumUtils.isValidEnum(BuiltinConstant.class, name);
    }
}