com.google.common.io
Class CharSink

java.lang.Object
  com.google.common.io.CharSink

public abstract class CharSink
extends java.lang.Object

A destination to which characters can be written, such as a text file. Unlike a Writer, a CharSink is not an open, stateful stream that can be written to and closed. Instead, it is an immutable supplier of Writer instances.

CharSink provides two kinds of methods:

• Methods that return a writer: These methods should return a new, independent instance each time they are called. The caller is responsible for ensuring that the returned writer is closed.
• Convenience methods: These are implementations of common operations that are typically implemented by opening a writer using one of the methods in the first category, doing something and finally closing the writer that was opened.

Any ByteSink may be viewed as a CharSink with a specific character encoding using ByteSink.asCharSink(Charset). Characters written to the resulting CharSink will written to the ByteSink as encoded bytes.

Since:

14.0

Constructor Summary

CharSink()

Method Summary

java.io.BufferedWriter	openBufferedStream() Opens a new BufferedWriter for writing to this sink.
abstract java.io.Writer	openStream() Opens a new Writer for writing to this sink.
void	write(java.lang.CharSequence charSequence) Writes the given character sequence to this sink.
long	writeFrom(java.lang.Readable readable) Writes all the text from the given Readable (such as a Reader) to this sink.
void	writeLines(java.lang.Iterable<? extends java.lang.CharSequence> lines) Writes the given lines of text to this sink with each line (including the last) terminated with the operating system's default line separator.
void	writeLines(java.lang.Iterable<? extends java.lang.CharSequence> lines, java.lang.String lineSeparator) Writes the given lines of text to this sink with each line (including the last) terminated with the given line separator.

Methods inherited from class java.lang.Object

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

Constructor Detail

CharSink

public CharSink()

Method Detail

openStream

public abstract java.io.Writer openStream()
                                   throws java.io.IOException

Opens a new Writer for writing to this sink. This method should return a new, independent writer each time it is called.

The caller is responsible for ensuring that the returned writer is closed.

Throws:

java.io.IOException - if an I/O error occurs in the process of opening the writer

openBufferedStream

public java.io.BufferedWriter openBufferedStream()
                                          throws java.io.IOException

Opens a new BufferedWriter for writing to this sink. This method should return a new, independent writer each time it is called.

The caller is responsible for ensuring that the returned writer is closed.

Throws:

java.io.IOException - if an I/O error occurs in the process of opening the writer

write

public void write(java.lang.CharSequence charSequence)
           throws java.io.IOException

Writes the given character sequence to this sink.

Throws:

java.io.IOException - if an I/O error in the process of writing to this sink

writeLines

public void writeLines(java.lang.Iterable<? extends java.lang.CharSequence> lines)
                throws java.io.IOException

Writes the given lines of text to this sink with each line (including the last) terminated with the operating system's default line separator. This method is equivalent to writeLines(lines, System.getProperty("line.separator")).

Throws:

java.io.IOException - if an I/O error occurs in the process of writing to this sink

writeLines

public void writeLines(java.lang.Iterable<? extends java.lang.CharSequence> lines,
                       java.lang.String lineSeparator)
                throws java.io.IOException

Writes the given lines of text to this sink with each line (including the last) terminated with the given line separator.

Throws:

java.io.IOException - if an I/O error occurs in the process of writing to this sink

writeFrom

public long writeFrom(java.lang.Readable readable)
               throws java.io.IOException

Writes all the text from the given Readable (such as a Reader) to this sink. Does not close readable if it is Closeable.

Throws:

java.io.IOException - if an I/O error occurs in the process of reading from readable or writing to this sink