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mindless
da236bad5e
level (instead of WARNING) for any class loading problems reading the extension. Also move up to sezpoz 1.7 and remove catch block for LinkageError in ExtensionFinder.. sezpoz should now throw only InstantiationException. git-svn-id: https://hudson.dev.java.net/svn/hudson/trunk/hudson/main@30963 71c3de6d-444a-0410-be80-ed276b4c234a
88 lines
3.2 KiB
Java
88 lines
3.2 KiB
Java
/*
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* The MIT License
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*
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* Copyright (c) 2004-2010, Sun Microsystems, Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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package hudson;
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import net.java.sezpoz.Indexable;
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import java.lang.annotation.Documented;
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import java.lang.annotation.Retention;
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import java.lang.annotation.Target;
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import static java.lang.annotation.ElementType.*;
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import static java.lang.annotation.RetentionPolicy.RUNTIME;
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/**
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* Marks a field, a method, or a class for automatic discovery, so that Hudson can locate
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* implementations of {@link ExtensionPoint}s automatically.
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*
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* <p>
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* (In contrast, in earlier Hudson, the registration was manual.)
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*
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* <p>
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* In a simplest case, put this on your class, and Hudson will create an instance of it
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* and register it to the appropriate {@link ExtensionList}.
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*
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* <p>
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* If you'd like Hudson to call
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* a factory method instead of a constructor, put this annotation on your static factory
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* method. Hudson will invoke it and if the method returns a non-null instance, it'll be
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* registered. The return type of the method is used to determine which {@link ExtensionList}
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* will get the instance.
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*
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* Finally, you can put this annotation on a static field if the field contains a reference
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* to an instance that you'd like to register.
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*
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* <p>
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* This is the default way of having your implementations auto-registered to Hudson,
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* but Hudson also supports arbitrary DI containers for hosting your implementations.
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* See {@link ExtensionFinder} for more details.
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*
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* @author Kohsuke Kawaguchi
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* @since 1.286
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* @see <a href="https://sezpoz.dev.java.net/nonav/">SezPoz</a>
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* @see ExtensionFinder
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* @see ExtensionList
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*/
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@Indexable
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@Retention(RUNTIME)
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@Target({TYPE, FIELD, METHOD})
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@Documented
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public @interface Extension {
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/**
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* Used for sorting extensions.
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*
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* Extensions will be sorted in the descending order of the ordinal.
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* This is a rather poor approach to the problem, so its use is generally discouraged.
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*
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* @since 1.306
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*/
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double ordinal() default 0;
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/**
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* If an extension is optional, don't log any class loading errors when reading it.
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* @since 1.358
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*/
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boolean optional() default false;
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}
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