java.io.Serializable
public class StringBuilderWriter
extends java.io.Writer
implements java.io.Serializable
Writer
implementation that outputs to a StringBuilder
.
NOTE: This implementation, as an alternative to
java.io.StringWriter
, provides an un-synchronized
(i.e. for use in a single thread) implementation for better performance.
For safe usage with multiple Thread
s then
java.io.StringWriter
should be used.
Constructor | Description |
---|---|
StringBuilderWriter() |
Constructs a new
StringBuilder instance with default capacity. |
StringBuilderWriter(int capacity) |
Constructs a new
StringBuilder instance with the specified capacity. |
StringBuilderWriter(java.lang.StringBuilder builder) |
Constructs a new instance with the specified
StringBuilder . |
Modifier and Type | Method | Description |
---|---|---|
java.io.Writer |
append(char value) |
Appends a single character to this Writer.
|
java.io.Writer |
append(java.lang.CharSequence value) |
Appends a character sequence to this Writer.
|
java.io.Writer |
append(java.lang.CharSequence value,
int start,
int end) |
Appends a portion of a character sequence to the
StringBuilder . |
void |
close() |
Closing this writer has no effect.
|
void |
flush() |
Flushing this writer has no effect.
|
java.lang.StringBuilder |
getBuilder() |
Returns the underlying builder.
|
java.lang.String |
toString() |
Returns
StringBuilder.toString() . |
void |
write(char[] value,
int offset,
int length) |
Writes a portion of a character array to the
StringBuilder . |
void |
write(java.lang.String value) |
Writes a String to the
StringBuilder . |
public StringBuilderWriter()
StringBuilder
instance with default capacity.public StringBuilderWriter(int capacity)
StringBuilder
instance with the specified capacity.capacity
- The initial capacity of the underlying StringBuilder
public StringBuilderWriter(java.lang.StringBuilder builder)
StringBuilder
.
If builder
is null a new instance with default capacity will be created.
builder
- The String builder. May be null.public java.io.Writer append(char value)
append
in class java.io.Writer
value
- The character to appendpublic java.io.Writer append(java.lang.CharSequence value)
append
in class java.io.Writer
value
- The character to appendpublic java.io.Writer append(java.lang.CharSequence value, int start, int end)
StringBuilder
.append
in class java.io.Writer
value
- The character to appendstart
- The index of the first characterend
- The index of the last character + 1public void close()
close
in class java.io.Writer
public void flush()
flush
in class java.io.Writer
public void write(java.lang.String value)
StringBuilder
.write
in class java.io.Writer
value
- The value to writepublic void write(char[] value, int offset, int length)
StringBuilder
.write
in class java.io.Writer
value
- The value to writeoffset
- The index of the first characterlength
- The number of characters to writepublic java.lang.StringBuilder getBuilder()
public java.lang.String toString()
StringBuilder.toString()
.toString
in class java.lang.Object