org.apache.tapestry5.internal.services

## Class RegexpStackTraceElementAnalyzer

- java.lang.Object
- - org.apache.tapestry5.internal.services.RegexpStackTraceElementAnalyzer

- All Implemented Interfaces:
    StackTraceElementAnalyzer

      public class RegexpStackTraceElementAnalyzer
      extends Object
      implements StackTraceElementAnalyzer

  Uses a regular expression to identify which CSS class to apply to a frame. The frame's `toString()` is used. Uses `Matcher.find()` to search for a subsequence of the frame's description.
  Since:
    5.3

- - ### Constructor Summary

    Constructors
    Constructor and Description
    `RegexpStackTraceElementAnalyzer(Pattern pattern, String cssClass)`

  - ### Method Summary

    All Methods Instance Methods Concrete Methods
    Modifier and Type | Method and Description
    --- | ---
    `String` | `classForFrame(StackTraceElement frame)` Returns the CSS class appropriate to the frame.

    - ### Methods inherited from class java.lang.Object

      `clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

- - ### Constructor Detail

    - #### RegexpStackTraceElementAnalyzer

          public RegexpStackTraceElementAnalyzer(Pattern pattern,
                                                 String cssClass)

  - ### Method Detail

    - #### classForFrame

          public String classForFrame(StackTraceElement frame)

      Description copied from interface: `StackTraceElementAnalyzer`
      Returns the CSS class appropriate to the frame.
      Specified by:
        `classForFrame` in interface `StackTraceElementAnalyzer`
      Parameters:
        `frame` - stack trace element to be analyzed
      Returns:
        the CSS class name, or null

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