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 // 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;
Used by 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
public interface StackTraceElementAnalyzer
{
    
Returns the CSS class appropriate to the frame.

Parameters:
frame stack trace element to be analyzed
Returns:
the CSS class name, or null
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