Java example source code file (ECGenParameterSpec.java)

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Java - Java tags/keywords

algorithmparameterspec, ecgenparameterspec, nullpointerexception, string

The ECGenParameterSpec.java Java example source code

/*
 * Copyright (c) 2003, 2013, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
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 */
package java.security.spec;

/**
 * This immutable class specifies the set of parameters used for
 * generating elliptic curve (EC) domain parameters.
 *
 * @see AlgorithmParameterSpec
 *
 * @author Valerie Peng
 *
 * @since 1.5
 */
public class ECGenParameterSpec implements AlgorithmParameterSpec {

    private String name;

    /**
     * Creates a parameter specification for EC parameter
     * generation using a standard (or predefined) name
     * {@code stdName} in order to generate the corresponding
     * (precomputed) elliptic curve domain parameters. For the
     * list of supported names, please consult the documentation
     * of provider whose implementation will be used.
     * @param stdName the standard name of the to-be-generated EC
     * domain parameters.
     * @exception NullPointerException if {@code stdName}
     * is null.
     */
    public ECGenParameterSpec(String stdName) {
        if (stdName == null) {
            throw new NullPointerException("stdName is null");
        }
        this.name = stdName;
    }

    /**
     * Returns the standard or predefined name of the
     * to-be-generated EC domain parameters.
     * @return the standard or predefined name.
     */
    public String getName() {
        return name;
    }
}