JDK8/Java8源码在线阅读

/*
 * Copyright (c) 1999, 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
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 */

package com.sun.jndi.ldap;

import javax.naming.ldap.*;

/**
  * This class provides a basic implementation of the <tt>Control</tt>
  * interface. It represents an LDAPv3 Control as defined in RFC-2251.
  *
  * @author Vincent Ryan
  */
public class BasicControl implements Control {

    /**
     * The control's object identifier string.
     *
     * @serial
     */
    protected String id;

    /**
     * The control's criticality.
     *
     * @serial
     */
    protected boolean criticality = false; // default

    /**
     * The control's ASN.1 BER encoded value.
     *
     * @serial
     */
    protected byte[] value = null;

    private static final long serialVersionUID = -5914033725246428413L;

    /**
     * Constructs a new instance of BasicControl.
     * It is a non-critical control.
     *
     * @param   id      The control's object identifier string.
     *
     */
    public BasicControl(String id) {
        this.id = id;
    }

    /**
     * Constructs a new instance of BasicControl.
     *
     * @param   id              The control's object identifier string.
     * @param   criticality     The control's criticality.
     * @param   value           The control's ASN.1 BER encoded value.
     *                          May be null.
     */
    public BasicControl(String id, boolean criticality, byte[] value) {
        this.id = id;
        this.criticality = criticality;
        if (value != null) {
            this.value = value.clone();
        }
    }

    /**
      * Retrieves the control's object identifier string.
      *
      * @return The non-null object identifier string.
      */
    public String getID() {
        return id;
    }

    /**
      * Determines the control's criticality.
      *
      * @return true if the control is critical; false otherwise.
      */
    public boolean isCritical() {
        return criticality;
    }

    /**
      * Retrieves the control's ASN.1 BER encoded value.

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