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package javax.servlet.annotation;

import java.lang.annotation.ElementType;
import java.lang.annotation.Target;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Retention;
import java.lang.annotation.Documented;

/**
 * Annotation used to declare a servlet.
 *
 * <p>This annotation is processed by the container at deployment time,
 * and the corresponding servlet made available at the specified URL
 * patterns.
 * 
 * @see javax.servlet.Servlet
 *
 * @since Servlet 3.0
 */
@Target({ElementType.TYPE})
@Retention(RetentionPolicy.RUNTIME)
@Documented
public @interface WebServlet {
    
    /**
     * The name of the servlet
     *
     * @return the name of the servlet
     */
    String name() default "";
    
    /**
     * The URL patterns of the servlet
     *
     * @return the URL patterns of the servlet
     */
    String[] value() default {};

    /**
     * The URL patterns of the servlet
     *
     * @return the URL patterns of the servlet
     */
    String[] urlPatterns() default {};
    
    /**
     * The load-on-startup order of the servlet 
     *
     * @return the load-on-startup order of the servlet
     */
    int loadOnStartup() default -1;
    
    /**
     * The init parameters of the servlet
     *
     * @return the init parameters of the servlet
     */
    WebInitParam [] initParams() default {};
    
    /**
     * Declares whether the servlet supports asynchronous operation mode.
     *
     * @return {@code true} if the servlet supports asynchronous operation mode
     * @see javax.servlet.ServletRequest#startAsync
     * @see javax.servlet.ServletRequest#startAsync(ServletRequest,
     * ServletResponse)
     */
    boolean asyncSupported() default false;
    
    /**
     * The small-icon of the servlet
     *
     * @return the small-icon of the servlet
     */
    String smallIcon() default "";

    /**
     * The large-icon of the servlet
     *
     * @return the large-icon of the servlet
     */
    String largeIcon() default "";

    /**
     * The description of the servlet
     *
     * @return the description of the servlet
     */
    String description() default "";

    /**
     * The display name of the servlet
     *
     * @return the display name of the servlet
     */
    String displayName() default "";

}
