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4 * this work for additional information regarding copyright ownership.
5 * The ASF licenses this file to You under the Apache License, Version 2.0
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9 * http://www.apache.org/licenses/LICENSE-2.0
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18 package org.apache.log4j.varia;
20 import org.apache.log4j.spi.Filter;
21 import org.apache.log4j.spi.LoggingEvent;
25 This filter drops all logging events.
27 <p>You can add this filter to the end of a filter chain to
28 switch from the default "accept all unless instructed otherwise"
29 filtering behaviour to a "deny all unless instructed otherwise"
33 @author Ceki Gülcü
36 public class DenyAllFilter extends Filter {
39 Returns <code>null</code> as there are no options.
41 @deprecated We now use JavaBeans introspection to configure
42 components. Options strings are no longer needed.
45 String[] getOptionStrings() {
53 @deprecated Use the setter method for the option directly instead
54 of the generic <code>setOption</code> method.
57 void setOption(String key, String value) {
61 Always returns the integer constant {@link Filter#DENY}
62 regardless of the {@link LoggingEvent} parameter.
64 @param event The LoggingEvent to filter.
65 @return Always returns {@link Filter#DENY}.
68 int decide(LoggingEvent event) {