forked from plusone/plusone-commons
已引入 guava。
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/*
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* Copyright (C) 2010 The Guava Authors
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*
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* Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
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* in compliance with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software distributed under the License
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* is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
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* or implied. See the License for the specific language governing permissions and limitations under
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* the License.
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*/
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package com.google.common.annotations;
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import java.lang.annotation.Documented;
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import java.lang.annotation.ElementType;
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import java.lang.annotation.Retention;
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import java.lang.annotation.RetentionPolicy;
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import java.lang.annotation.Target;
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/**
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* Signifies that a public API (public class, method or field) is subject to incompatible changes,
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* or even removal, in a future release. An API bearing this annotation is exempt from any
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* compatibility guarantees made by its containing library. Note that the presence of this
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* annotation implies nothing about the quality or performance of the API in question, only the fact
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* that it is not "API-frozen."
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*
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* <p>It is generally safe for <i>applications</i> to depend on beta APIs, at the cost of some extra
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* work during upgrades. However it is generally inadvisable for <i>libraries</i> (which get
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* included on users' CLASSPATHs, outside the library developers' control) to do so.
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*
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* @author Kevin Bourrillion
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*/
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@Retention(RetentionPolicy.CLASS)
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@Target({
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ElementType.ANNOTATION_TYPE,
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ElementType.CONSTRUCTOR,
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ElementType.FIELD,
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ElementType.METHOD,
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ElementType.TYPE
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})
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@Documented
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@GwtCompatible
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public @interface Beta {}
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/*
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* Copyright (C) 2009 The Guava Authors
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*
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* Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
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* in compliance with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software distributed under the License
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* is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
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* or implied. See the License for the specific language governing permissions and limitations under
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* the License.
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*/
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package com.google.common.annotations;
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import java.lang.annotation.Documented;
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import java.lang.annotation.ElementType;
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import java.lang.annotation.Retention;
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import java.lang.annotation.RetentionPolicy;
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import java.lang.annotation.Target;
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/**
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* The presence of this annotation on a type indicates that the type may be used with the <a
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* href="http://code.google.com/webtoolkit/">Google Web Toolkit</a> (GWT). When applied to a method,
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* the return type of the method is GWT compatible. It's useful to indicate that an instance created
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* by factory methods has a GWT serializable type. In the following example,
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*
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* <pre>
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* {@literal @}GwtCompatible
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* class Lists {
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* ...
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* {@literal @}GwtCompatible(serializable = true)
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* {@literal static <E> List<E>} newArrayList(E... elements) {
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* ...
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* }
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* }
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* </pre>
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*
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* <p>The return value of {@code Lists.newArrayList(E[])} has GWT serializable type. It is also
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* useful in specifying contracts of interface methods. In the following example,
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*
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* <pre>
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* {@literal @}GwtCompatible
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* interface ListFactory {
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* ...
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* {@literal @}GwtCompatible(serializable = true)
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* {@literal <E> List<E>} newArrayList(E... elements);
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* }
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* </pre>
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*
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* <p>The {@code newArrayList(E[])} method of all implementations of {@code ListFactory} is expected
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* to return a value with a GWT serializable type.
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*
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* <p>Note that a {@code GwtCompatible} type may have some {@link GwtIncompatible} methods.
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*
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* @author Charles Fry
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* @author Hayward Chan
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*/
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@Retention(RetentionPolicy.CLASS)
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@Target({ElementType.TYPE, ElementType.METHOD})
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@Documented
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@GwtCompatible
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public @interface GwtCompatible {
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/**
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* When {@code true}, the annotated type or the type of the method return value is GWT
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* serializable.
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*
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* @see <a href=
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* "http://code.google.com/webtoolkit/doc/latest/DevGuideServerCommunication.html#DevGuideSerializableTypes">
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* Documentation about GWT serialization</a>
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*/
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boolean serializable() default false;
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/**
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* When {@code true}, the annotated type is emulated in GWT. The emulated source (also known as
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* super-source) is different from the implementation used by the JVM.
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*
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* @see <a href=
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* "http://code.google.com/webtoolkit/doc/latest/DevGuideOrganizingProjects.html#DevGuideModules">
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* Documentation about GWT emulated source</a>
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*/
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boolean emulated() default false;
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}
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