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## javax.tools
Class SimpleJavaFileObject

    java.lang.Object
      javax.tools.SimpleJavaFileObject

All Implemented Interfaces:
  FileObject, JavaFileObject

    public class SimpleJavaFileObject

extends Object
implements JavaFileObject

Provides simple implementations for most methods in JavaFileObject. This class is designed to be subclassed and used as a basis for JavaFileObject implementations. Subclasses can override the implementation and specification of any method of this class as long as the general contract of JavaFileObject is obeyed.

Since:
  1.6

Nested Class Summary

Nested classes/interfaces inherited from interface javax.tools.JavaFileObject
`JavaFileObject.Kind`

Field Summary
`protected JavaFileObject.Kind` | `kind` The kind of this file object.
`protected URI` | `uri` A URI for this file object.

Constructor Summary
`protected` | `SimpleJavaFileObject(URI uri, JavaFileObject.Kind kind)` Construct a SimpleJavaFileObject of the given kind and with the given URI.

Method Summary
`boolean` | `delete()` This implementation does nothing.
`Modifier` | `getAccessLevel()` This implementation returns `null`.
`CharSequence` | `getCharContent(boolean ignoreEncodingErrors)` This implementation always throws UnsupportedOperationException.
`JavaFileObject.Kind` | `getKind()` Gets the kind of this file object.
`long` | `getLastModified()` This implementation returns `0L`.
`String` | `getName()` Gets a user-friendly name for this file object.
`NestingKind` | `getNestingKind()` This implementation returns `null`.
`boolean` | `isNameCompatible(String simpleName, JavaFileObject.Kind kind)` This implementation compares the path of its URI to the given simple name.
`InputStream` | `openInputStream()` This implementation always throws UnsupportedOperationException.
`OutputStream` | `openOutputStream()` This implementation always throws UnsupportedOperationException.
`Reader` | `openReader(boolean ignoreEncodingErrors)` Wraps the result of getCharContent(boolean) in a Reader.
`Writer` | `openWriter()` Wraps the result of openOutputStream in a Writer.
`String` | `toString()` Returns a string representation of the object.
`URI` | `toUri()` Returns a URI identifying this file object.

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait`

Field Detail

### uri

    protected final URI uri

  A URI for this file object.

### kind

    protected final JavaFileObject.Kind kind

  The kind of this file object.

Constructor Detail

### SimpleJavaFileObject

    protected SimpleJavaFileObject(URI uri,
                                   JavaFileObject.Kind kind)

  Construct a SimpleJavaFileObject of the given kind and with the given URI.

  Parameters:
    `uri` - the URI for this file object
    `kind` - the kind of this file object

Method Detail

### toUri

    public URI toUri()

  Description copied from interface: `FileObject`
  Returns a URI identifying this file object.

  Specified by:
    `toUri` in interface `FileObject`
  Returns:
    a URI

### getName

    public String getName()

  Description copied from interface: `FileObject`
  Gets a user-friendly name for this file object. The exact value returned is not specified but implementations should take care to preserve names as given by the user. For example, if the user writes the filename `"BobsApp\Test.java"` on the command line, this method should return `"BobsApp\Test.java"` whereas the toUri method might return `file:///C:/Documents%20and%20Settings/UncleBob/BobsApp/Test.java`.

  Specified by:
    `getName` in interface `FileObject`
  Returns:
    a user-friendly name

### openInputStream

    public InputStream openInputStream()
                                throws IOException

  This implementation always throws UnsupportedOperationException. Subclasses can change this behavior as long as the contract of `FileObject` is obeyed.

  Specified by:
    `openInputStream` in interface `FileObject`
  Returns:
    an InputStream
  Throws:
    `IOException` - if an I/O error occurred

### openOutputStream

    public OutputStream openOutputStream()
                                  throws IOException

  This implementation always throws UnsupportedOperationException. Subclasses can change this behavior as long as the contract of `FileObject` is obeyed.

  Specified by:
    `openOutputStream` in interface `FileObject`
  Returns:
    an OutputStream
  Throws:
    `IOException` - if an I/O error occurred

### openReader

    public Reader openReader(boolean ignoreEncodingErrors)
                      throws IOException

  Wraps the result of getCharContent(boolean) in a Reader. Subclasses can change this behavior as long as the contract of `FileObject` is obeyed.

  Specified by:
    `openReader` in interface `FileObject`
  Parameters:
    `ignoreEncodingErrors` - ignore encoding errors if true
  Returns:
    a Reader wrapping the result of getCharContent
  Throws:
    `IllegalStateException` - if this file object was opened for writing and does not support reading
    `UnsupportedOperationException` - if this kind of file object does not support character access
    `IOException` - if an I/O error occurred

### getCharContent

    public CharSequence getCharContent(boolean ignoreEncodingErrors)
                                throws IOException

  This implementation always throws UnsupportedOperationException. Subclasses can change this behavior as long as the contract of `FileObject` is obeyed.

  Specified by:
    `getCharContent` in interface `FileObject`
  Parameters:
    `ignoreEncodingErrors` - ignore encoding errors if true
  Returns:
    a CharSequence if available; `null` otherwise
  Throws:
    `IOException` - if an I/O error occurred

### openWriter

    public Writer openWriter()
                      throws IOException

  Wraps the result of openOutputStream in a Writer. Subclasses can change this behavior as long as the contract of `FileObject` is obeyed.

  Specified by:
    `openWriter` in interface `FileObject`
  Returns:
    a Writer wrapping the result of openOutputStream
  Throws:
    `IllegalStateException` - if this file object was opened for reading and does not support writing
    `UnsupportedOperationException` - if this kind of file object does not support character access
    `IOException` - if an I/O error occurred

### getLastModified

    public long getLastModified()

  This implementation returns `0L`. Subclasses can change this behavior as long as the contract of `FileObject` is obeyed.

  Specified by:
    `getLastModified` in interface `FileObject`
  Returns:
    `0L`

### delete

    public boolean delete()

  This implementation does nothing. Subclasses can change this behavior as long as the contract of `FileObject` is obeyed.

  Specified by:
    `delete` in interface `FileObject`
  Returns:
    `false`

### getKind

    public JavaFileObject.Kind getKind()

  Description copied from interface: `JavaFileObject`
  Gets the kind of this file object.

  Specified by:
    `getKind` in interface `JavaFileObject`
  Returns:
    `this.kind`

### isNameCompatible

    public boolean isNameCompatible(String simpleName,
                                    JavaFileObject.Kind kind)

  This implementation compares the path of its URI to the given simple name. This method returns true if the given kind is equal to the kind of this object, and if the path is equal to `simpleName + kind.extension` or if it ends with `"/" + simpleName + kind.extension`.

  This method calls `getKind()` and `toUri()` and does not access the fields `uri` and `kind` directly.

  Subclasses can change this behavior as long as the contract of `JavaFileObject` is obeyed.

  Specified by:
    `isNameCompatible` in interface `JavaFileObject`
  Parameters:
    `simpleName` - a simple name of a class
    `kind` - a kind
  Returns:
    `true` if this file object is compatible; false otherwise

### getNestingKind

    public NestingKind getNestingKind()

  This implementation returns `null`. Subclasses can change this behavior as long as the contract of `JavaFileObject` is obeyed.

  Specified by:
    `getNestingKind` in interface `JavaFileObject`
  Returns:
    the nesting kind, or `null` if the nesting kind is not known

### getAccessLevel

    public Modifier getAccessLevel()

  This implementation returns `null`. Subclasses can change this behavior as long as the contract of `JavaFileObject` is obeyed.

  Specified by:
    `getAccessLevel` in interface `JavaFileObject`
  Returns:
    the access level

### toString

    public String toString()

  Description copied from class: `Object`
  Returns a string representation of the object. In general, the `toString` method returns a string that "textually represents" this object. The result should be a concise but informative representation that is easy for a person to read. It is recommended that all subclasses override this method.

  The `toString` method for class `Object` returns a string consisting of the name of the class of which the object is an instance, the at-sign character ``@`', and the unsigned hexadecimal representation of the hash code of the object. In other words, this method returns a string equal to the value of:

  >      getClass().getName() + '@' + Integer.toHexString(hashCode())

  Overrides:
    `toString` in class `Object`
  Returns:
    a string representation of the object.

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