- java.lang.Object
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- javax.tools.ForwardingFileObject<F>
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- Type Parameters:
F
- the kind of file object forwarded to by this object
- All Implemented Interfaces:
FileObject
- Direct Known Subclasses:
ForwardingJavaFileObject
public class ForwardingFileObject<F extends FileObject> extends Object implements FileObject
Forwards calls to a given file object. Subclasses of this class might override some of these methods and might also provide additional fields and methods.- Since:
- 1.6
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Field Summary
Fields Modifier and Type Field Description protected F
fileObject
The file object which all methods are delegated to.
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Constructor Summary
Constructors Modifier Constructor Description protected
ForwardingFileObject(F fileObject)
Creates a new instance of ForwardingFileObject.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description boolean
delete()
Deletes this file object.CharSequence
getCharContent(boolean ignoreEncodingErrors)
Returns the character content of this file object, if available.long
getLastModified()
Returns the time this file object was last modified.String
getName()
Returns a user-friendly name for this file object.InputStream
openInputStream()
Returns an InputStream for this file object.OutputStream
openOutputStream()
Returns an OutputStream for this file object.Reader
openReader(boolean ignoreEncodingErrors)
Returns a reader for this object.Writer
openWriter()
Returns a Writer for this file object.URI
toUri()
Returns a URI identifying this file object.
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Field Detail
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fileObject
protected final F extends FileObject fileObject
The file object which all methods are delegated to.
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Constructor Detail
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ForwardingFileObject
protected ForwardingFileObject(F fileObject)
Creates a new instance of ForwardingFileObject.- Parameters:
fileObject
- delegate to this file object
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Method Detail
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toUri
public URI toUri()
Description copied from interface:FileObject
Returns a URI identifying this file object.- Specified by:
toUri
in interfaceFileObject
- Returns:
- a URI
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getName
public String getName()
Description copied from interface:FileObject
Returns 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 returnfile:///C:/Documents%20and%20Settings/UncleBob/BobsApp/Test.java
.- Specified by:
getName
in interfaceFileObject
- Returns:
- a user-friendly name
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openInputStream
public InputStream openInputStream() throws IOException
Description copied from interface:FileObject
Returns an InputStream for this file object.- Specified by:
openInputStream
in interfaceFileObject
- Returns:
- an InputStream
- Throws:
IllegalStateException
- if this file object was opened for writing and does not support readingUnsupportedOperationException
- if this kind of file object does not support byte accessIOException
- if an I/O error occurred
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openOutputStream
public OutputStream openOutputStream() throws IOException
Description copied from interface:FileObject
Returns an OutputStream for this file object.- Specified by:
openOutputStream
in interfaceFileObject
- Returns:
- an OutputStream
- Throws:
IllegalStateException
- if this file object was opened for reading and does not support writingUnsupportedOperationException
- if this kind of file object does not support byte accessIOException
- if an I/O error occurred
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openReader
public Reader openReader(boolean ignoreEncodingErrors) throws IOException
Description copied from interface:FileObject
Returns 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 unlessignoreEncodingErrors
is true.- Specified by:
openReader
in interfaceFileObject
- Parameters:
ignoreEncodingErrors
- ignore encoding errors if true- Returns:
- a Reader
- Throws:
IllegalStateException
- if this file object was opened for writing and does not support readingUnsupportedOperationException
- if this kind of file object does not support character accessIOException
- if an I/O error occurred
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getCharContent
public CharSequence getCharContent(boolean ignoreEncodingErrors) throws IOException
Description copied from interface:FileObject
Returns 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 unlessignoreEncodingErrors
is true.- Specified by:
getCharContent
in interfaceFileObject
- 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 readingUnsupportedOperationException
- if this kind of file object does not support character accessIOException
- if an I/O error occurred
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openWriter
public Writer openWriter() throws IOException
Description copied from interface:FileObject
Returns a Writer for this file object.- Specified by:
openWriter
in interfaceFileObject
- Returns:
- a Writer
- Throws:
IllegalStateException
- if this file object was opened for reading and does not support writingUnsupportedOperationException
- if this kind of file object does not support character accessIOException
- if an I/O error occurred
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getLastModified
public long getLastModified()
Description copied from interface:FileObject
Returns the time this file object was last modified. The time is measured in milliseconds since the epoch (00:00:00 GMT, January 1, 1970).- Specified by:
getLastModified
in interfaceFileObject
- 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
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delete
public boolean delete()
Description copied from interface:FileObject
Deletes this file object. In case of errors, returns false.- Specified by:
delete
in interfaceFileObject
- Returns:
- true if and only if this file object is successfully deleted; false otherwise
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