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package javax.servlet;
import java.util.*;
/**
* Interface through which a {@link Filter} may be further configured.
*
* @since Servlet 3.0
*/
public interface FilterRegistration extends Registration {
/**
* Adds a filter mapping with the given servlet names and dispatcher
* types for the Filter represented by this FilterRegistration.
*
* <p>Filter mappings are matched in the order in which they were
* added.
*
* <p>Depending on the value of the <tt>isMatchAfter</tt> parameter, the
* given filter mapping will be considered after or before any
* <i>declared</i> filter mappings of the ServletContext from which this
* FilterRegistration was obtained.
*
* <p>If this method is called multiple times, each successive call
* adds to the effects of the former.
*
* @param dispatcherTypes the dispatcher types of the filter mapping,
* or null if the default <tt>DispatcherType.REQUEST</tt> is to be used
* @param isMatchAfter true if the given filter mapping should be matched
* after any declared filter mappings, and false if it is supposed to
* be matched before any declared filter mappings of the ServletContext
* from which this FilterRegistration was obtained
* @param servletNames the servlet names of the filter mapping
*
* @throws IllegalArgumentException if <tt>servletNames</tt> is null or
* empty
* @throws IllegalStateException if the ServletContext from which this
* FilterRegistration was obtained has already been initialized
*/
public void addMappingForServletNames(
EnumSet<DispatcherType> dispatcherTypes, boolean isMatchAfter,
String... servletNames);
/**
* Gets the currently available servlet name mappings
* of the Filter represented by this <code>FilterRegistration</code>.
*
* <p>Any changes to the returned <code>Collection</code> must not
* affect this <code>FilterRegistration</code>.
*
* @return a (possibly empty) <code>Collection</code> of the currently
* available servlet name mappings of the Filter represented by this
* <code>FilterRegistration</code>
*/
public Collection<String> getServletNameMappings();
/**
* Adds a filter mapping with the given url patterns and dispatcher
* types for the Filter represented by this FilterRegistration.
*
* <p>Filter mappings are matched in the order in which they were
* added.
*
* <p>Depending on the value of the <tt>isMatchAfter</tt> parameter, the
* given filter mapping will be considered after or before any
* <i>declared</i> filter mappings of the ServletContext from which
* this FilterRegistration was obtained.
*
* <p>If this method is called multiple times, each successive call
* adds to the effects of the former.
*
* @param dispatcherTypes the dispatcher types of the filter mapping,
* or null if the default <tt>DispatcherType.REQUEST</tt> is to be used
* @param isMatchAfter true if the given filter mapping should be matched
* after any declared filter mappings, and false if it is supposed to
* be matched before any declared filter mappings of the ServletContext
* from which this FilterRegistration was obtained
* @param urlPatterns the url patterns of the filter mapping
*
* @throws IllegalArgumentException if <tt>urlPatterns</tt> is null or
* empty
* @throws IllegalStateException if the ServletContext from which this
* FilterRegistration was obtained has already been initialized
*/
public void addMappingForUrlPatterns(
EnumSet<DispatcherType> dispatcherTypes, boolean isMatchAfter,
String... urlPatterns);
/**
* Gets the currently available URL pattern mappings of the Filter
* represented by this <code>FilterRegistration</code>.
*
* <p>Any changes to the returned <code>Collection</code> must not
* affect this <code>FilterRegistration</code>.
*
* @return a (possibly empty) <code>Collection</code> of the currently
* available URL pattern mappings of the Filter represented by this
* <code>FilterRegistration</code>
*/
public Collection<String> getUrlPatternMappings();
/**
* Interface through which a {@link Filter} registered via one of the
* <tt>addFilter</tt> methods on {@link ServletContext} may be further
* configured.
*/
interface Dynamic extends FilterRegistration, Registration.Dynamic {
}
}