Top Description Fields Constructors Methods
com.google.common.io

pack-priv Class AppendableWriter

extends Writer
Class Inheritance
Annotations
@J2ktIncompatible
@GwtIncompatible
@ElementTypesAreNonnullByDefault
Static Imports
com.google.common.base.Preconditions.checkNotNull

Writer that places all output on an Appendable target. If the target is Flushable or Closeable, flush()es and close()s will also be delegated to the target.
Authors
Alan Green, Sebastian Kanthak
Since
1.0

Field Summary

Modifier and TypeField and Description
private boolean
private final Appendable
Inherited from java.io.Writer:
lock

Constructor Summary

AccessConstructor and Description
pack-priv
AppendableWriter(Appendable
target to which to append output
target
)

Creates a new writer that appends everything it writes to target.

Method Summary

Modifier and TypeMethod and Description
public Writer
append(char
The 16-bit character to append
c
)

Overrides java.io.Writer.append.

Implements java.lang.Appendable.append.

Appends the specified character to this writer.
public Writer
append(CharSequence
The character sequence to append. If csq is null, then the four characters "null" are appended to this writer.
charSeq
)

Overrides java.io.Writer.append.

Implements java.lang.Appendable.append.

Appends the specified character sequence to this writer.
public Writer
append(CharSequence
The character sequence from which a subsequence will be appended. If csq is null, then characters will be appended as if csq contained the four characters "null".
charSeq
,
int
The index of the first character in the subsequence
start
,
int
The index of the character following the last character in the subsequence
end
)

Overrides java.io.Writer.append.

Implements java.lang.Appendable.append.

Appends a subsequence of the specified character sequence to this writer.
private void
public void
close()

Implements abstract java.io.Writer.close.

Implements java.io.Closeable.close.

Closes the stream, flushing it first.
public void
flush()

Implements abstract java.io.Writer.flush.

Implements java.io.Flushable.flush.

Flushes the stream.
public void
write(char[]
Array of characters
cbuf
,
int
Offset from which to start writing characters
off
,
int
Number of characters to write
len
)

Implements abstract java.io.Writer.write.

Writes a portion of an array of characters.
public void
write(int
int specifying a character to be written
c
)

Overrides java.io.Writer.write.

Writes a single character.
public void
write(String
String to be written
str
)

Overrides java.io.Writer.write.

Writes a string.
public void
write(String
A String
str
,
int
Offset from which to start writing characters
off
,
int
Number of characters to write
len
)

Overrides java.io.Writer.write.

Writes a portion of a string.
Inherited from java.io.Writer:
nullWriterwrite

Field Detail

closedback to summary
private boolean closed
targetback to summary
private final Appendable target

Constructor Detail

AppendableWriterback to summary
pack-priv AppendableWriter(Appendable target)

Creates a new writer that appends everything it writes to target.

Parameters
target:Appendable

target to which to append output

Method Detail

appendback to summary
public Writer append(char c) throws IOException

Overrides java.io.Writer.append.

Implements java.lang.Appendable.append.

Doc from java.io.Writer.append.

Appends the specified character to this writer.

An invocation of this method of the form out.append(c) behaves in exactly the same way as the invocation

out.write(c)
out.write(c)
Parameters
c:char

The 16-bit character to append

Returns:Writer

This writer

Annotations
@Override
Exceptions
IOException:
If an I/O error occurs
appendback to summary
public Writer append(CharSequence charSeq) throws IOException

Overrides java.io.Writer.append.

Implements java.lang.Appendable.append.

Doc from java.io.Writer.append.

Appends the specified character sequence to this writer.

An invocation of this method of the form out.append(csq) behaves in exactly the same way as the invocation

out.write(csq.toString())
out.write(csq.toString())

Depending on the specification of toString for the character sequence csq, the entire sequence may not be appended. For instance, invoking the toString method of a character buffer will return a subsequence whose content depends upon the buffer's position and limit.

Parameters
charSeq:CharSequence

The character sequence to append. If csq is null, then the four characters "null" are appended to this writer.

Returns:Writer

This writer

Annotations
@Override
Exceptions
IOException:
If an I/O error occurs
appendback to summary
public Writer append(CharSequence charSeq, int start, int end) throws IOException

Overrides java.io.Writer.append.

Implements java.lang.Appendable.append.

Doc from java.io.Writer.append.

Appends a subsequence of the specified character sequence to this writer. Appendable.

An invocation of this method of the form out.append(csq, start, end) when csq is not null behaves in exactly the same way as the invocation

out.write(csq.subSequence(start, end).toString())
out.write(csq.subSequence(start, end).toString())
Parameters
charSeq:CharSequence

The character sequence from which a subsequence will be appended. If csq is null, then characters will be appended as if csq contained the four characters "null".

start:int

The index of the first character in the subsequence

end:int

The index of the character following the last character in the subsequence

Returns:Writer

This writer

Annotations
@Override
Exceptions
IOException:
If an I/O error occurs
checkNotClosedback to summary
private void checkNotClosed() throws IOException
closeback to summary
public void close() throws IOException

Implements abstract java.io.Writer.close.

Implements java.io.Closeable.close.

Doc from java.io.Writer.close.

Closes the stream, flushing it first. Once the stream has been closed, further write() or flush() invocations will cause an IOException to be thrown. Closing a previously closed stream has no effect.

Annotations
@Override
Exceptions
IOException:
If an I/O error occurs
flushback to summary
public void flush() throws IOException

Implements abstract java.io.Writer.flush.

Implements java.io.Flushable.flush.

Doc from java.io.Writer.flush.

Flushes the stream. If the stream has saved any characters from the various write() methods in a buffer, write them immediately to their intended destination. Then, if that destination is another character or byte stream, flush it. Thus one flush() invocation will flush all the buffers in a chain of Writers and OutputStreams.

If the intended destination of this stream is an abstraction provided by the underlying operating system, for example a file, then flushing the stream guarantees only that bytes previously written to the stream are passed to the operating system for writing; it does not guarantee that they are actually written to a physical device such as a disk drive.

Annotations
@Override
Exceptions
IOException:
If an I/O error occurs
writeback to summary
public void write(char[] cbuf, int off, int len) throws IOException

Implements abstract java.io.Writer.write.

Doc from java.io.Writer.write.

Writes a portion of an array of characters.

Parameters
cbuf:char[]

Array of characters

off:int

Offset from which to start writing characters

len:int

Number of characters to write

Annotations
@Override
Exceptions
IOException:
If an I/O error occurs
writeback to summary
public void write(int c) throws IOException

Overrides java.io.Writer.write.

Doc from java.io.Writer.write.

Writes a single character. The character to be written is contained in the 16 low-order bits of the given integer value; the 16 high-order bits are ignored.

Subclasses that intend to support efficient single-character output should override this method.

Parameters
c:int

int specifying a character to be written

Annotations
@Override
Exceptions
IOException:
If an I/O error occurs
writeback to summary
public void write(String str) throws IOException

Overrides java.io.Writer.write.

Doc from java.io.Writer.write.

Writes a string.

Parameters
str:String

String to be written

Annotations
@Override
Exceptions
IOException:
If an I/O error occurs
writeback to summary
public void write(String str, int off, int len) throws IOException

Overrides java.io.Writer.write.

Doc from java.io.Writer.write.

Writes a portion of a string.

Parameters
str:String

A String

off:int

Offset from which to start writing characters

len:int

Number of characters to write

Annotations
@Override
Exceptions
IOException:
If an I/O error occurs