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Central module for Tapestry, containing interfaces to the Java
Servlet API and all core services and components.
// Copyright 2009 The Apache Software Foundation
//
// Licensed 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.tapestry5.services;
import org.apache.tapestry5.ioc.annotations.UsesOrderedConfiguration;
/**
* Used by {@link org.apache.tapestry5.corelib.components.ExceptionDisplay} to characterize each stack frame that is
* presented. Implemented as a chain-of-command service.
*
* @since 5.1.0.0
*/
@UsesOrderedConfiguration(StackTraceElementAnalyzer.class)
public interface StackTraceElementAnalyzer
{
/**
* Returns the CSS class appropriate to the frame.
*
* @param frame stack trace element to be analyzed
* @return the CSS class name, or null
*/
String classForFrame(StackTraceElement frame);
}