| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| package org.apache.openjpa.lib.log; |
| |
| /** |
| * Logging interface that is independent of other logging frameworks. |
| * |
| * @author Patrick Linskey |
| * @author Abe White |
| */ |
| public interface Log { |
| |
| short TRACE = 1; |
| // the old DEBUG constant was 2. Leaving a hole for compatibility. |
| short INFO = 3; |
| short WARN = 4; |
| short ERROR = 5; |
| short FATAL = 6; |
| |
| /** |
| * Returns if the {@link #TRACE} log level is enabled. |
| */ |
| boolean isTraceEnabled(); |
| |
| /** |
| * Returns if the {@link #INFO} log level is enabled. |
| */ |
| boolean isInfoEnabled(); |
| |
| /** |
| * Returns if the {@link #WARN} log level is enabled. |
| */ |
| boolean isWarnEnabled(); |
| |
| /** |
| * Returns if the {@link #ERROR} log level is enabled. |
| */ |
| boolean isErrorEnabled(); |
| |
| /** |
| * Returns if the {@link #FATAL} log level is enabled. |
| */ |
| boolean isFatalEnabled(); |
| |
| /** |
| * Write out a log message at the {@link #TRACE} |
| * level with the stringification of <code>o</code> as the body |
| * of the message. |
| */ |
| void trace(Object o); |
| |
| /** |
| * Write out a log message at the {@link #TRACE} |
| * level with the stringification of <code>o</code> as the body |
| * of the message, also outputting <code>t</code> to the log. |
| */ |
| void trace(Object o, Throwable t); |
| |
| /** |
| * Write out a log message at the {@link #INFO} |
| * level with the stringification of <code>o</code> as the body |
| * of the message, also outputting <code>t</code> to the log. |
| */ |
| void info(Object o); |
| |
| /** |
| * Write out a log message at the {@link #INFO} |
| * level with the stringification of <code>o</code> as the body |
| * of the message, also outputting <code>t</code> to the log. |
| */ |
| void info(Object o, Throwable t); |
| |
| /** |
| * Write out a log message at the {@link #WARN} |
| * level with the stringification of <code>o</code> as the body |
| * of the message, also outputting <code>t</code> to the log. |
| */ |
| void warn(Object o); |
| |
| /** |
| * Write out a log message at the {@link #WARN} |
| * level with the stringification of <code>o</code> as the body |
| * of the message, also outputting <code>t</code> to the log. |
| */ |
| void warn(Object o, Throwable t); |
| |
| /** |
| * Write out a log message at the {@link #ERROR} |
| * level with the stringification of <code>o</code> as the body |
| * of the message, also outputting <code>t</code> to the log. |
| */ |
| void error(Object o); |
| |
| /** |
| * Write out a log message at the {@link #ERROR} |
| * level with the stringification of <code>o</code> as the body |
| * of the message, also outputting <code>t</code> to the log. |
| */ |
| void error(Object o, Throwable t); |
| |
| /** |
| * Write out a log message at the {@link #FATAL} |
| * level with the stringification of <code>o</code> as the body |
| * of the message, also outputting <code>t</code> to the log. |
| */ |
| void fatal(Object o); |
| |
| /** |
| * Write out a log message at the {@link #FATAL} |
| * level with the stringification of <code>o</code> as the body |
| * of the message, also outputting <code>t</code> to the log. |
| */ |
| void fatal(Object o, Throwable t); |
| } |