Clarify semantics for multiple profiles in @Profile

Author: sbrannen

spring-context/src/main/java/org/springframework/context/annotation/Profile.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2013 the original author or authors.
+ * Copyright 2002-2015 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -26,15 +26,16 @@
 import org.springframework.core.env.ConfigurableEnvironment;
 
 /**
- * Indicates that a component is eligible for registration when one or more {@linkplain
- * #value specified profiles} are active.
+ * Indicates that a component is eligible for registration when one or more
+ * {@linkplain #value specified profiles} are active.
  *
  * <p>A <em>profile</em> is a named logical grouping that may be activated
  * programmatically via {@link ConfigurableEnvironment#setActiveProfiles} or declaratively
- * through setting the {@link AbstractEnvironment#ACTIVE_PROFILES_PROPERTY_NAME
- * spring.profiles.active} property, usually through JVM system properties, as an
- * environment variable, or for web applications as a Servlet context parameter in
- * {@code web.xml}.
+ * by setting the {@link AbstractEnvironment#ACTIVE_PROFILES_PROPERTY_NAME
+ * spring.profiles.active} property as a JVM system property, as an
+ * environment variable, or as a Servlet context parameter in {@code web.xml}
+ * for web applications. Profiles may also be activated declaratively in
+ * integration tests via the {@code @ActiveProfiles} annotation.
  *
  * <p>The {@code @Profile} annotation may be used in any of the following ways:
  * <ul>
@@ -46,33 +47,36 @@
  *
  * <p>If a {@code @Configuration} class is marked with {@code @Profile}, all of the
  * {@code @Bean} methods and {@link Import @Import} annotations associated with that class
- * will be bypassed unless one or more of the specified profiles are active. This is very
- * similar to the behavior in Spring XML: if the {@code profile} attribute of the
+ * will be bypassed unless one or more of the specified profiles are active. This is
+ * analogous to the behavior in Spring XML: if the {@code profile} attribute of the
  * {@code beans} element is supplied e.g., {@code <beans profile="p1,p2">}, the
- * {@code beans} element will not be parsed unless profiles 'p1' and/or 'p2' have been
+ * {@code beans} element will not be parsed unless at least profile 'p1' or 'p2' has been
  * activated. Likewise, if a {@code @Component} or {@code @Configuration} class is marked
- * with {@code @Profile({"p1", "p2"})}, that class will not be registered/processed unless
- * profiles 'p1' and/or 'p2' have been activated.
+ * with {@code @Profile({"p1", "p2"})}, that class will not be registered or processed unless
+ * at least profile 'p1' or 'p2' has been activated.
  *
  * <p>If a given profile is prefixed with the NOT operator ({@code !}), the annotated
- * will be registered if the profile is <em>not</em> active. e.g., for
- * {@code @Profile({"p1", "!p2"})}, registration will occur if profile 'p1' is active or
- * if profile 'p2' is not active.
+ * component will be registered if the profile is <em>not</em> active &mdash; for example,
+ * given {@code @Profile({"p1", "!p2"})}, registration will occur if profile 'p1' is active or
+ * if profile 'p2' is <em>not</em> active.
  *
- * <p>If the {@code @Profile} annotation is omitted, registration will occur, regardless
+ * <p>If the {@code @Profile} annotation is omitted, registration will occur regardless
  * of which (if any) profiles are active.
  *
  * <p>When defining Spring beans via XML, the {@code "profile"} attribute of the
- * {@code <beans>} element may be used. See the documentation in
+ * {@code <beans>} element may be used. See the documentation in the
  * {@code spring-beans} XSD (version 3.1 or greater) for details.
  *
  * @author Chris Beams
  * @author Phillip Webb
+ * @author Sam Brannen
  * @since 3.1
  * @see ConfigurableEnvironment#setActiveProfiles
  * @see ConfigurableEnvironment#setDefaultProfiles
  * @see AbstractEnvironment#ACTIVE_PROFILES_PROPERTY_NAME
  * @see AbstractEnvironment#DEFAULT_PROFILES_PROPERTY_NAME
+ * @see Conditional
+ * @see org.springframework.test.context.ActiveProfiles
  */
 @Retention(RetentionPolicy.RUNTIME)
 @Target({ElementType.TYPE, ElementType.METHOD})