public class StringBuilderWriter extends Writer implements 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 Threads then
java.io.StringWriter should be used.
(borrowed from commons.io project)
| Constructor and Description |
|---|
StringBuilderWriter()
Constructs a new
StringBuilder instance with default capacity. |
StringBuilderWriter(int capacity)
Constructs a new
StringBuilder instance with the specified capacity. |
StringBuilderWriter(StringBuilder builder)
Constructs a new instance with the specified
StringBuilder. |
| Modifier and Type | Method and Description |
|---|---|
Writer |
append(char value)
Appends a single character to this Writer.
|
Writer |
append(CharSequence value)
Appends a character sequence to this Writer.
|
Writer |
append(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.
|
StringBuilder |
getBuilder()
Returns the underlying builder.
|
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(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 StringBuilderpublic StringBuilderWriter(StringBuilder builder)
StringBuilder.
If builder is null a new instance with default capacity will be created.
builder - The String builder. May be null.public Writer append(char value)
append in interface Appendableappend in class Writervalue - The character to appendpublic Writer append(CharSequence value)
append in interface Appendableappend in class Writervalue - The character to appendpublic Writer append(CharSequence value, int start, int end)
StringBuilder.append in interface Appendableappend in class Writervalue - The character to appendstart - The index of the first characterend - The index of the last character + 1public void close()
public void flush()
public void write(String value)
StringBuilder.public void write(char[] value,
int offset,
int length)
StringBuilder.public StringBuilder getBuilder()
public String toString()
StringBuilder.toString().Copyright © 2000–2020 The Apache Software Foundation. All rights reserved.