Java compact3 javax.tools Interface FileObject（JDK8）

Method Detail

• toUri

  URI toUri()

  Returns a URI identifying this file object.

  Returns:

  a URI

• getName

  String getName()

  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.

  Returns:

  a user-friendly name

• openInputStream

  InputStream openInputStream()
                       throws IOException

  Gets an InputStream for this file object.

  Returns:

  an InputStream

  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 byte access

  IOException - if an I/O error occurred

• openOutputStream

  OutputStream openOutputStream()
                         throws IOException

  Gets an OutputStream for this file object.

  Returns:

  an OutputStream

  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 byte access

  IOException - if an I/O error occurred

• openReader

  Reader openReader(boolean ignoreEncodingErrors)
             throws IOException

  Gets a reader for this object. The returned reader will replace bytes that cannot be decoded with the default translation character. In addition, the reader may report a diagnostic unless ignoreEncodingErrors is true.

  Parameters:

  ignoreEncodingErrors - ignore encoding errors if true

  Returns:

  a Reader

  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

  CharSequence getCharContent(boolean ignoreEncodingErrors)
                       throws IOException

  Gets the character content of this file object, if available. Any byte that cannot be decoded will be replaced by the default translation character. In addition, a diagnostic may be reported unless ignoreEncodingErrors is true.

  Parameters:

  ignoreEncodingErrors - ignore encoding errors if true

  Returns:

  a CharSequence if available; null otherwise

  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

• openWriter

  Writer openWriter()
             throws IOException

  Gets a Writer for this file object.

  Returns:

  a Writer

  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

  long getLastModified()

  Gets the time this file object was last modified. The time is measured in milliseconds since the epoch (00:00:00 GMT, January 1, 1970).

  Returns:

  the time this file object was last modified; or 0 if the file object does not exist, if an I/O error occurred, or if the operation is not supported

• delete

  boolean delete()

  Deletes this file object. In case of errors, returns false.

  Returns:

  true if and only if this file object is successfully deleted; false otherwise