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java.lang.Object java.io.Writer org.springframework.extensions.surf.util.StringBuilderWriter
public class StringBuilderWriter
This is a direct copy of the JDK java.io.StringWriter class but modified to write to a StringBuilder rather than the older, slower StringBuffer class. Obviously this class is therefore not thread safe and synchronization should be provided at the application level if required.
Original source comments:
A character stream that collects its output in a string builder, which can then be used to construct a string.
Closing a StringWriter has no effect. The methods in this class can be called after the stream has been closed without generating an IOException.
Field Summary |
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Fields inherited from class java.io.Writer |
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lock |
Constructor Summary | |
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StringBuilderWriter()
Create a new string writer, using the default initial string-builder size. |
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StringBuilderWriter(int initialSize)
Create a new string writer, using the specified initial string-builder size. |
Method Summary | |
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StringBuilderWriter |
append(char c)
Appends the specified character to this writer. |
StringBuilderWriter |
append(CharSequence csq)
Appends the specified character sequence to this writer. |
StringBuilderWriter |
append(CharSequence csq,
int start,
int end)
Appends a subsequence of the specified character sequence to this writer. |
void |
close()
Closing a StringWriter has no effect. |
void |
flush()
Flush the stream. |
StringBuilder |
getBuffer()
Return the string builder itself. |
String |
toString()
Return the buffer's current value as a string. |
void |
write(char[] cbuf,
int off,
int len)
Write a portion of an array of characters. |
void |
write(int c)
Write a single character. |
void |
write(String str)
Write a string. |
void |
write(String str,
int off,
int len)
Write a portion of a string. |
Methods inherited from class java.io.Writer |
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write |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Constructor Detail |
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public StringBuilderWriter()
public StringBuilderWriter(int initialSize)
initialSize
- an int specifying the initial size of the builder.Method Detail |
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public void write(int c)
write
in class Writer
public void write(char[] cbuf, int off, int len)
write
in class Writer
cbuf
- Array of charactersoff
- Offset from which to start writing characterslen
- Number of characters to writepublic void write(String str)
write
in class Writer
public void write(String str, int off, int len)
write
in class Writer
str
- String to be writtenoff
- Offset from which to start writing characterslen
- Number of characters to writepublic StringBuilderWriter append(CharSequence csq)
An invocation of this method of the form out.append(csq) behaves in exactly the same way as the invocation
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.
append
in interface Appendable
append
in class Writer
csq
- The character sequence to append. If csq is null, then the four characters
"null" are appended to this writer.
public StringBuilderWriter append(CharSequence csq, int start, int end)
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())
append
in interface Appendable
append
in class Writer
csq
- 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
- The index of the first character in the subsequenceend
- The index of the character following the last character in the subsequence
IndexOutOfBoundsException
- If start or end are negative, start is greater than end,
or end is greater than csq.length()public StringBuilderWriter append(char c)
An invocation of this method of the form out.append(c) behaves in exactly the same way as the invocation
out.write(c)
append
in interface Appendable
append
in class Writer
c
- The 16-bit character to append
public String toString()
toString
in class Object
public StringBuilder getBuffer()
public void flush()
flush
in interface Flushable
flush
in class Writer
public void close() throws IOException
close
in interface Closeable
close
in class Writer
IOException
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