All Superinterfaces:

PropertySource

All Known Implementing Classes:

AbstractAccumulatingRenderer, AbstractIncrementingRenderer, AbstractRenderer, CodeClimateRenderer, CSVRenderer, EmacsRenderer, EmptyRenderer, HTMLRenderer, IDEAJRenderer, JsonRenderer, SarifRenderer, SummaryHTMLRenderer, TextColorRenderer, TextPadRenderer, TextRenderer, VBHTMLRenderer, XMLRenderer, XSLTRenderer, YAHTMLRenderer
```
public interface Renderer
extends PropertySource
```
This is an interface for rendering a Report. When a Renderer is being invoked, the sequence of method calls is something like the following:
1. Renderer construction/initialization
2. setShowSuppressedViolations(boolean)
3. setWriter(Writer)
4. start()
5. startFileAnalysis(TextFile) for each source file processed
6. renderFileReport(Report) for each Report instance
7. end()
An implementation of the Renderer interface is expected to have a default constructor. Properties should be defined using the PropertySource.definePropertyDescriptor(PropertyDescriptor) method. After the instance is created, the property values are set. This means, you won't have access to property values in your constructor.

Method Summary

All Methods Instance Methods Abstract Methods Default Methods
Modifier and Type	Method	Description
`String`	`defaultFileExtension()`	Return the default filename extension to use.
`void`	`end()`	This method is at the very end of the Rendering process, after `renderFileReport(Report)`.
`void`	`flush()`
`String`	`getDescription()`	Get the description of the Renderer.
`String`	`getName()`	Get the name of the Renderer.
`Writer`	`getWriter()`	Get the Writer for the Renderer.
`boolean`	`isShowSuppressedViolations()`	Get the indicator for whether to show suppressed violations.
`default GlobalAnalysisListener`	`newListener()`	Returns a new analysis listener, that handles violations by rendering them in an implementation-defined way.
`void`	`renderFileReport(Report report)`	Render the given file Report.
`void`	`setDescription(String description)`	Set the description of the Renderer.
`void`	`setFileNameRenderer(FileNameRenderer fileNameRenderer)`	Set the `FileNameRenderer` used to render file paths to the report.
`void`	`setName(String name)`	Set the name of the Renderer.
`void`	`setReportFile(String reportFilename)`	Sets the filename where the report should be written to.
`void`	`setShowSuppressedViolations(boolean showSuppressedViolations)`	Set the indicator for whether to show suppressed violations.
`void`	`setWriter(Writer writer)`	Set the Writer for the Renderer.
`void`	`start()`	This method is called before any source files are processed.
`void`	`startFileAnalysis(TextFile dataSource)`	This method is called each time a source file is processed.

Methods inherited from interface net.sourceforge.pmd.properties.PropertySource
definePropertyDescriptor, dysfunctionReason, getOverriddenPropertiesByPropertyDescriptor, getOverriddenPropertyDescriptors, getPropertiesByPropertyDescriptor, getProperty, getPropertyDescriptor, getPropertyDescriptors, hasDescriptor, isPropertyOverridden, setProperty, setProperty

- Method Detail
  - getName
```
String getName()
```
    Get the name of the Renderer.
    
    Specified by:
    
    getName in interface PropertySource
    
    Returns:
    
    The name of the Renderer.
  - setName
```
void setName(String name)
```
    Set the name of the Renderer.
    
    Parameters:
    
    name - The name of the Renderer.
  - getDescription
```
String getDescription()
```
    Get the description of the Renderer.
    
    Returns:
    
    The description of the Renderer.
  - defaultFileExtension
```
String defaultFileExtension()
```
    Return the default filename extension to use.
    
    Returns:
    
    String
  - setDescription
```
void setDescription(String description)
```
    Set the description of the Renderer.
    
    Parameters:
    
    description - The description of the Renderer.
  - isShowSuppressedViolations
```
boolean isShowSuppressedViolations()
```
    Get the indicator for whether to show suppressed violations.
    
    Returns:
    
    true if suppressed violations should show, false otherwise.
  - setShowSuppressedViolations
```
void setShowSuppressedViolations(boolean showSuppressedViolations)
```
    Set the indicator for whether to show suppressed violations.
    
    Parameters:
    
    showSuppressedViolations - Whether to show suppressed violations.
  - getWriter
```
Writer getWriter()
```
    Get the Writer for the Renderer.
    
    Returns:
    
    The Writer.
  - setFileNameRenderer
```
void setFileNameRenderer(FileNameRenderer fileNameRenderer)
```
    Set the FileNameRenderer used to render file paths to the report. Note that this renderer does not have to use the parameter to output paths. Some report formats require a specific format for paths (eg a URI), and are allowed to circumvent the provided strategy.
    
    Parameters:
    
    fileNameRenderer - a non-null file name renderer
  - setWriter
```
void setWriter(Writer writer)
```
    Set the Writer for the Renderer.
    
    Parameters:
    
    writer - The Writer.
  - start
```
void start()
    throws IOException
```
    This method is called before any source files are processed. The Renderer will have been fully initialized by the time this method is called, so the Writer and other state will be available.
    
    Throws:
    
    IOException
  - startFileAnalysis
```
void startFileAnalysis(TextFile dataSource)
```
    This method is called each time a source file is processed. It is called after start(), but before renderFileReport(Report) and end(). This method may be invoked by different threads which are processing files independently. Therefore, any non-trivial implementation of this method needs to be thread-safe.
    
    Parameters:
    
    dataSource - The source file.
  - renderFileReport
```
void renderFileReport(Report report)
               throws IOException
```
    Render the given file Report. There may be multiple Report instances which need to be rendered if produced by different threads. It is called after start() and startFileAnalysis(TextFile), but before end().
    
    Parameters:
    
    report - A file Report.
    
    Throws:
    
    IOException
    
    See Also:
    
    Report
  - end
```
void end()
  throws IOException
```
    This method is at the very end of the Rendering process, after renderFileReport(Report).
    
    Throws:
    
    IOException
  - flush
```
void flush()
    throws IOException
```
    Throws:
    
    IOException
  - setReportFile
```
@Experimental
void setReportFile(String reportFilename)
```
    Sets the filename where the report should be written to. If no filename is provided, the renderer should write to stdout.
    Implementations must initialize the writer of the renderer.
    See AbstractRenderer.setReportFile(String) for the default impl.
    
    Parameters:
    
    reportFilename - the filename (optional).
  - newListener
```
default GlobalAnalysisListener newListener()
                                    throws IOException
```
    Returns a new analysis listener, that handles violations by rendering them in an implementation-defined way.
    
    Throws:
    
    IOException

Interface Renderer

Method Summary

Methods inherited from interface net.sourceforge.pmd.properties.PropertySource

Method Detail

getName

setName

getDescription

defaultFileExtension

setDescription

isShowSuppressedViolations

setShowSuppressedViolations

getWriter

setFileNameRenderer

setWriter

start

startFileAnalysis

renderFileReport

end

flush

setReportFile

newListener