DocumentationTool (Java SE 14 & JDK 14)
Description: declaration: module: java.compiler, package: javax.tools, interface: DocumentationTool
Keywords: javax.tools.DocumentationTool interface

Module java.compiler
Package javax.tools

# Interface DocumentationTool

All Superinterfaces:
  `OptionChecker`, `Tool`

    public interface DocumentationTool
    extends Tool, OptionChecker

Interface to invoke Java™ programming language documentation tools from programs.

Since:
  1.8

- ## Nested Class Summary

  Nested Classes
  Modifier and Type | Interface | Description
  --- | --- | ---
  `static interface` | `DocumentationTool.DocumentationTask` | Interface representing a future for a documentation task.
  `static class` | `DocumentationTool.Location` | Locations specific to `DocumentationTool`.

- ## Method Summary

  Modifier and Type | Method | Description
  --- | --- | ---
  `StandardJavaFileManager` | `getStandardFileManager​(DiagnosticListener<? super JavaFileObject> diagnosticListener, Locale locale, Charset charset)` | Returns a new instance of the standard file manager implementation for this tool.
  `DocumentationTool.DocumentationTask` | `getTask​(Writer out, JavaFileManager fileManager, DiagnosticListener<? super JavaFileObject> diagnosticListener, Class<?> docletClass, Iterable<String> options, Iterable<? extends JavaFileObject> compilationUnits)` | Creates a future for a documentation task with the given components and arguments.

  ### Methods declared in interface javax.tools.OptionChecker

  `isSupportedOption`

  ### Methods declared in interface javax.tools.Tool

  `getSourceVersions, name, run`

- ## Method Details

  - ### getTask

    DocumentationTool.DocumentationTask getTask​(Writer out, JavaFileManager fileManager, DiagnosticListener<? super JavaFileObject> diagnosticListener, Class<?> docletClass, Iterable<String> options, Iterable<? extends JavaFileObject> compilationUnits)
    Creates a future for a documentation task with the given components and arguments. The task might not have completed as described in the DocumentationTask interface.

    If a file manager is provided, it must be able to handle all locations defined in `DocumentationTool.Location`, as well as `StandardLocation.SOURCE_PATH`, `StandardLocation.CLASS_PATH`, and `StandardLocation.PLATFORM_CLASS_PATH`.

    Parameters:
      `out` - a Writer for additional output from the tool; use `System.err` if `null`
      `fileManager` - a file manager; if `null` use the tool's standard filemanager
      `diagnosticListener` - a diagnostic listener; if `null` use the tool's default method for reporting diagnostics
      `docletClass` - a class providing the necessary methods required of a doclet; a value of `null` means to use the standard doclet.
      `options` - documentation tool options and doclet options, `null` means no options
      `compilationUnits` - the compilation units to compile, `null` means no compilation units
    Returns:
      an object representing the compilation
    Throws:
      `RuntimeException` - if an unrecoverable error occurred in a user supplied component. The cause will be the error in user code.
      `IllegalArgumentException` - if any of the given compilation units are of other kind than source

  - ### getStandardFileManager

    StandardJavaFileManager getStandardFileManager​(DiagnosticListener<? super JavaFileObject> diagnosticListener, Locale locale, Charset charset)
    Returns a new instance of the standard file manager implementation for this tool. The file manager will use the given diagnostic listener for producing any non-fatal diagnostics. Fatal errors will be signaled with the appropriate exceptions.

    The standard file manager will be automatically reopened if it is accessed after calls to `flush` or `close`. The standard file manager must be usable with other tools.

    Parameters:
      `diagnosticListener` - a diagnostic listener for non-fatal diagnostics; if `null` use the compiler's default method for reporting diagnostics
      `locale` - the locale to apply when formatting diagnostics; `null` means the default locale.
      `charset` - the character set used for decoding bytes; if `null` use the platform default
    Returns:
      the standard file manager