Class BasicHeaderPrintWriter

java.lang.Object

java.io.Writer

java.io.PrintWriter

org.apache.derby.impl.services.stream.BasicHeaderPrintWriter

All Implemented Interfaces:

Closeable, Flushable, Appendable, AutoCloseable, HeaderPrintWriter

class BasicHeaderPrintWriter
extends PrintWriter
implements HeaderPrintWriter

Basic class to print lines with headers.

STUB: Should include code to emit a new line before a header which is not the first thing on the line.

Field Summary

Fields

Modifier and Type	Field	Description
private final boolean	canClose
private final PrintWriterGetHeader	headerGetter
private final String	name

Fields inherited from class PrintWriter

out

Fields inherited from class Writer

lock

Constructor Summary

Constructors

Constructor	Description
BasicHeaderPrintWriter(OutputStream writeTo, PrintWriterGetHeader headerGetter, boolean canClose, String streamName)	the constructor sets up the HeaderPrintWriter.
BasicHeaderPrintWriter(Writer writeTo, PrintWriterGetHeader headerGetter, boolean canClose, String writerName)	the constructor sets up the HeaderPrintWriter.

Method Summary

Modifier and Type	Method	Description
(package private) void	complete()	Flushes stream, and optionally also closes it if constructed with canClose equal to true.
PrintWriterGetHeader	getHeader()	Return the header for the stream.
String	getName()	Gets the name of the wrapped writer or stream
PrintWriter	getPrintWriter()	Gets a PrintWriter object for writing to this HeaderPrintWriter.
void	printlnWithHeader(String message)	Puts out some setup info for the current write and the write(s) that will be put out next.

Methods inherited from class PrintWriter

append, append, append, checkError, clearError, close, flush, format, format, print, print, print, print, print, print, print, print, print, printf, printf, println, println, println, println, println, println, println, println, println, println, setError, write, write, write, write, write

Methods inherited from class Writer

nullWriter

Methods inherited from class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface HeaderPrintWriter

flush, print, println, println

Field Details

headerGetter

private final PrintWriterGetHeader headerGetter

canClose

private final boolean canClose

name

private final String name

Constructor Details

BasicHeaderPrintWriter

BasicHeaderPrintWriter(OutputStream writeTo,
 PrintWriterGetHeader headerGetter,
 boolean canClose,
 String streamName)

the constructor sets up the HeaderPrintWriter.

Parameters:

writeTo - Where to write to.

headerGetter - Object to get headers for output lines.

canClose - If true, complete() will also close writeTo

streamName - Name of writeTo, e.g. a file name

See Also:

• PrintWriterGetHeader

BasicHeaderPrintWriter

BasicHeaderPrintWriter(Writer writeTo,
 PrintWriterGetHeader headerGetter,
 boolean canClose,
 String writerName)

the constructor sets up the HeaderPrintWriter.

Parameters:

writeTo - Where to write to.

headerGetter - Object to get headers for output lines.

canClose - If true, complete() will also close writeTo

writerName - Name of writeTo, e.g. a file name

See Also:

• PrintWriterGetHeader

Method Details

printlnWithHeader

public void printlnWithHeader(String message)

Description copied from interface: HeaderPrintWriter

Puts out some setup info for the current write and the write(s) that will be put out next. It ends with a \n\r.

All other writes to the stream use the PrintStream interface.

Specified by:

printlnWithHeader in interface HeaderPrintWriter

getHeader

public PrintWriterGetHeader getHeader()

Description copied from interface: HeaderPrintWriter

Return the header for the stream.

Specified by:

getHeader in interface HeaderPrintWriter

getPrintWriter

public PrintWriter getPrintWriter()

Description copied from interface: HeaderPrintWriter

Gets a PrintWriter object for writing to this HeaderPrintWriter. Users may use the HeaderPrintWriter to access methods not included in this interface or to invoke methods or constructors which require a PrintWriter. Interleaving calls to a printWriter and its associated HeaderPrintWriter is not supported.

Specified by:

getPrintWriter in interface HeaderPrintWriter

getName

public String getName()

Description copied from interface: HeaderPrintWriter

Gets the name of the wrapped writer or stream

Specified by:

getName in interface HeaderPrintWriter

complete

void complete()

Flushes stream, and optionally also closes it if constructed with canClose equal to true.