jdk8-mips64-public/langtools: src/share/classes/com/sun/source/util/Plugin.java@c0f0c41cafa0

8001098: Provide a simple light-weight "plug-in" mechanism for javac
Reviewed-by: mcimadamore

     1 /*

     2  * Copyright (c) 2005, 2012, Oracle and/or its affiliates. All rights reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.  Oracle designates this

     8  * particular file as subject to the "Classpath" exception as provided

     9  * by Oracle in the LICENSE file that accompanied this code.

    10  *

    11  * This code is distributed in the hope that it will be useful, but WITHOUT

    12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    14  * version 2 for more details (a copy is included in the LICENSE file that

    15  * accompanied this code).

    16  *

    17  * You should have received a copy of the GNU General Public License version

    18  * 2 along with this work; if not, write to the Free Software Foundation,

    19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    20  *

    21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    22  * or visit www.oracle.com if you need additional information or have any

    23  * questions.

    24  */

    25 package com.sun.source.util;

    27 import java.util.ServiceLoader;

    28 import javax.tools.StandardLocation;

    30 /**

    31  * The interface for a javac plug-in.

    32  *

    33  * <p>The javac plug-in mechanism allows a user to specify one or more plug-ins

    34  * on the javac command line, to be started soon after the compilation

    35  * has begun. Plug-ins are identified by a user-friendly name. Each plug-in that

    36  * is started will be passed an array of strings, which may be used to

    37  * provide the plug-in with values for any desired options or other arguments.

    38  *

    39  * <p>Plug-ins are located via a {@link ServiceLoader},

    40  * using the same class path as annotation processors (i.e.

    41  * {@link StandardLocation#PROCESSOR_PATH PROCESSOR_PATH} or

    42  * {@code -processorpath}).

    43  *

    44  * <p>It is expected that a typical plug-in will simply register a

    45  * {@link TaskListener} to be informed of events during the execution

    46  * of the compilation, and that the rest of the work will be done

    47  * by the task listener.

    48  *

    49  * @since 1.8

    50  */

    51 public interface Plugin {

    52     /**

    53      * Get the user-friendly name of this plug-in.

    54      * @return the user-friendly name of the plug-in

    55      */

    56     String getName();

    58     /**

    59      * Invoke the plug-in for a given compilation task.

    60      * @param task The compilation task that has just been started

    61      * @param args Arguments, if any, for the plug-in

    62      */

    63     void call(JavacTask task, String... args);

    64 }

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