Package org.apache.jasper.runtime
Class BodyContentImpl
java.lang.Object
java.io.Writer
javax.servlet.jsp.JspWriter
javax.servlet.jsp.tagext.BodyContent
org.apache.jasper.runtime.BodyContentImpl
- All Implemented Interfaces:
Closeable
,Flushable
,Appendable
,AutoCloseable
Write text to a character-output stream, buffering characters so as
to provide for the efficient writing of single characters, arrays,
and strings.
Provide support for discarding for the output that has been buffered.
- Author:
- Rajiv Mordani, Jan Luehe
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Field Summary
Fields inherited from class javax.servlet.jsp.JspWriter
autoFlush, bufferSize, DEFAULT_BUFFER, NO_BUFFER, UNBOUNDED_BUFFER
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Constructor Summary
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Method Summary
Modifier and TypeMethodDescriptionvoid
clear()
Clear the contents of the buffer.void
Clears the current contents of the buffer.void
close()
Close the stream, flushing it first.int
This method returns the size of the buffer used by the JspWriter.Return the value of this BodyContent as a Reader.int
This method returns the number of unused bytes in the buffer.Return the value of the BodyContent as a String.void
newLine()
Write a line separator.void
print
(boolean b) Print a boolean value.void
print
(char c) Print a character.void
print
(char[] s) Print an array of characters.void
print
(double d) Print a double-precision floating-point number.void
print
(float f) Print a floating-point number.void
print
(int i) Print an integer.void
print
(long l) Print a long integer.void
Print an object.void
Print a string.void
println()
Terminate the current line by writing the line separator string.void
println
(boolean x) Print a boolean value and then terminate the line.void
println
(char x) Print a character and then terminate the line.void
println
(char[] x) Print an array of characters and then terminate the line.void
println
(double x) Print a double-precision floating-point number and then terminate the line.void
println
(float x) Print a floating-point number and then terminate the line.void
println
(int x) Print an integer and then terminate the line.void
println
(long x) Print a long integer and then terminate the line.void
Print an Object and then terminate the line.void
Print a String and then terminate the line.protected void
recycle()
This method shall "reset" the internal state of a BodyContentImpl, releasing all internal references, and preparing it for potential reuse by a later invocation ofPageContextImpl.pushBody(Writer)
.void
write
(char[] buf) void
write
(char[] cbuf, int off, int len) void
write
(int c) void
void
void
Write the contents of this BodyContent into a Writer.Methods inherited from class javax.servlet.jsp.tagext.BodyContent
clearBody, flush, getEnclosingWriter
Methods inherited from class javax.servlet.jsp.JspWriter
isAutoFlush
Methods inherited from class java.io.Writer
append, append, append, nullWriter
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Constructor Details
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BodyContentImpl
Constructor.- Parameters:
enclosingWriter
- The wrapped writer
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Method Details
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write
- Overrides:
write
in classWriter
- Throws:
IOException
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write
- Specified by:
write
in classWriter
- Throws:
IOException
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write
- Overrides:
write
in classWriter
- Throws:
IOException
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write
- Overrides:
write
in classWriter
- Throws:
IOException
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write
- Overrides:
write
in classWriter
- Throws:
IOException
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newLine
Description copied from class:javax.servlet.jsp.JspWriter
Write a line separator. The line separator string is defined by the system propertyline.separator
, and is not necessarily a single newline ('\n') character.- Specified by:
newLine
in classJspWriter
- Throws:
IOException
- If an I/O error occurs
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print
Description copied from class:javax.servlet.jsp.JspWriter
Print a boolean value. The string produced by
is written to the JspWriter's buffer or, if no buffer is used, directly to the underlying writer.String.valueOf(boolean)
- Specified by:
print
in classJspWriter
- Parameters:
b
- Theboolean
to be printed- Throws:
IOException
- If an error occurred while writing
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print
Description copied from class:javax.servlet.jsp.JspWriter
Print a character. The character is written to the JspWriter's buffer or, if no buffer is used, directly to the underlying writer.- Specified by:
print
in classJspWriter
- Parameters:
c
- Thechar
to be printed- Throws:
IOException
- If an error occurred while writing
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print
Description copied from class:javax.servlet.jsp.JspWriter
Print an integer. The string produced by
is written to the JspWriter's buffer or, if no buffer is used, directly to the underlying writer.String.valueOf(int)
- Specified by:
print
in classJspWriter
- Parameters:
i
- Theint
to be printed- Throws:
IOException
- If an error occurred while writing- See Also:
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print
Description copied from class:javax.servlet.jsp.JspWriter
Print a long integer. The string produced by
is written to the JspWriter's buffer or, if no buffer is used, directly to the underlying writer.String.valueOf(long)
- Specified by:
print
in classJspWriter
- Parameters:
l
- Thelong
to be printed- Throws:
IOException
- If an error occurred while writing- See Also:
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print
Description copied from class:javax.servlet.jsp.JspWriter
Print a floating-point number. The string produced by
is written to the JspWriter's buffer or, if no buffer is used, directly to the underlying writer.String.valueOf(float)
- Specified by:
print
in classJspWriter
- Parameters:
f
- Thefloat
to be printed- Throws:
IOException
- If an error occurred while writing- See Also:
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print
Description copied from class:javax.servlet.jsp.JspWriter
Print a double-precision floating-point number. The string produced by
is written to the JspWriter's buffer or, if no buffer is used, directly to the underlying writer.String.valueOf(double)
- Specified by:
print
in classJspWriter
- Parameters:
d
- Thedouble
to be printed- Throws:
IOException
- If an error occurred while writing- See Also:
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print
Description copied from class:javax.servlet.jsp.JspWriter
Print an array of characters. The characters are written to the JspWriter's buffer or, if no buffer is used, directly to the underlying writer.- Specified by:
print
in classJspWriter
- Parameters:
s
- The array of chars to be printed- Throws:
IOException
- If an error occurred while writing
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print
Description copied from class:javax.servlet.jsp.JspWriter
Print a string. If the argument isnull
then the string"null"
is printed. Otherwise, the string's characters are written to the JspWriter's buffer or, if no buffer is used, directly to the underlying writer.- Specified by:
print
in classJspWriter
- Parameters:
s
- TheString
to be printed- Throws:
IOException
- If an error occurred while writing
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print
Description copied from class:javax.servlet.jsp.JspWriter
Print an object. The string produced by the
method is written to the JspWriter's buffer or, if no buffer is used, directly to the underlying writer.String.valueOf(Object)
- Specified by:
print
in classJspWriter
- Parameters:
obj
- TheObject
to be printed- Throws:
IOException
- If an error occurred while writing- See Also:
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println
Description copied from class:javax.servlet.jsp.JspWriter
Terminate the current line by writing the line separator string. The line separator string is defined by the system propertyline.separator
, and is not necessarily a single newline character ('\n'
).- Specified by:
println
in classJspWriter
- Throws:
IOException
- If an error occurred while writing
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println
Description copied from class:javax.servlet.jsp.JspWriter
Print a boolean value and then terminate the line. This method behaves as though it invokes
and thenJspWriter.print(boolean)
.JspWriter.println()
- Specified by:
println
in classJspWriter
- Parameters:
x
- the boolean to write- Throws:
IOException
- If an error occurred while writing
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println
Description copied from class:javax.servlet.jsp.JspWriter
Print a character and then terminate the line. This method behaves as though it invokes
and thenJspWriter.print(char)
.JspWriter.println()
- Specified by:
println
in classJspWriter
- Parameters:
x
- the char to write- Throws:
IOException
- If an error occurred while writing
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println
Description copied from class:javax.servlet.jsp.JspWriter
Print an integer and then terminate the line. This method behaves as though it invokes
and thenJspWriter.print(int)
.JspWriter.println()
- Specified by:
println
in classJspWriter
- Parameters:
x
- the int to write- Throws:
IOException
- If an error occurred while writing
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println
Description copied from class:javax.servlet.jsp.JspWriter
Print a long integer and then terminate the line. This method behaves as though it invokes
and thenJspWriter.print(long)
.JspWriter.println()
- Specified by:
println
in classJspWriter
- Parameters:
x
- the long to write- Throws:
IOException
- If an error occurred while writing
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println
Description copied from class:javax.servlet.jsp.JspWriter
Print a floating-point number and then terminate the line. This method behaves as though it invokes
and thenJspWriter.print(float)
.JspWriter.println()
- Specified by:
println
in classJspWriter
- Parameters:
x
- the float to write- Throws:
IOException
- If an error occurred while writing
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println
Description copied from class:javax.servlet.jsp.JspWriter
Print a double-precision floating-point number and then terminate the line. This method behaves as though it invokes
and thenJspWriter.print(double)
.JspWriter.println()
- Specified by:
println
in classJspWriter
- Parameters:
x
- the double to write- Throws:
IOException
- If an error occurred while writing
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println
Description copied from class:javax.servlet.jsp.JspWriter
Print an array of characters and then terminate the line. This method behaves as though it invokesprint(char[])
and thenprintln()
.- Specified by:
println
in classJspWriter
- Parameters:
x
- the char[] to write- Throws:
IOException
- If an error occurred while writing
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println
Description copied from class:javax.servlet.jsp.JspWriter
Print a String and then terminate the line. This method behaves as though it invokes
and thenJspWriter.print(String)
.JspWriter.println()
- Specified by:
println
in classJspWriter
- Parameters:
x
- the String to write- Throws:
IOException
- If an error occurred while writing
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println
Description copied from class:javax.servlet.jsp.JspWriter
Print an Object and then terminate the line. This method behaves as though it invokes
and thenJspWriter.print(Object)
.JspWriter.println()
- Specified by:
println
in classJspWriter
- Parameters:
x
- the Object to write- Throws:
IOException
- If an error occurred while writing
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clear
Description copied from class:javax.servlet.jsp.JspWriter
Clear the contents of the buffer. If the buffer has been already been flushed then the clear operation shall throw an IOException to signal the fact that some data has already been irrevocably written to the client response stream.- Specified by:
clear
in classJspWriter
- Throws:
IOException
- If an I/O error occurs
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clearBuffer
Description copied from class:javax.servlet.jsp.JspWriter
Clears the current contents of the buffer. Unlike clear(), this method will not throw an IOException if the buffer has already been flushed. It merely clears the current content of the buffer and returns.- Specified by:
clearBuffer
in classJspWriter
- Throws:
IOException
- If an I/O error occurs
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close
Description copied from class:javax.servlet.jsp.JspWriter
Close the stream, flushing it first.This method needs not be invoked explicitly for the initial JspWriter as the code generated by the JSP container will automatically include a call to close().
Closing a previously-closed stream, unlike flush(), has no effect.
- Specified by:
close
in interfaceAutoCloseable
- Specified by:
close
in interfaceCloseable
- Specified by:
close
in classJspWriter
- Throws:
IOException
- If an I/O error occurs
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getBufferSize
public int getBufferSize()Description copied from class:javax.servlet.jsp.JspWriter
This method returns the size of the buffer used by the JspWriter.- Overrides:
getBufferSize
in classJspWriter
- Returns:
- the size of the buffer in bytes, or 0 is unbuffered.
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getRemaining
public int getRemaining()Description copied from class:javax.servlet.jsp.JspWriter
This method returns the number of unused bytes in the buffer.- Specified by:
getRemaining
in classJspWriter
- Returns:
- the number of bytes unused in the buffer
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getReader
Description copied from class:javax.servlet.jsp.tagext.BodyContent
Return the value of this BodyContent as a Reader.- Specified by:
getReader
in classBodyContent
- Returns:
- the value of this BodyContent as a Reader
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getString
Description copied from class:javax.servlet.jsp.tagext.BodyContent
Return the value of the BodyContent as a String.- Specified by:
getString
in classBodyContent
- Returns:
- the value of the BodyContent as a String
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writeOut
Description copied from class:javax.servlet.jsp.tagext.BodyContent
Write the contents of this BodyContent into a Writer. Subclasses may optimize common invocation patterns.- Specified by:
writeOut
in classBodyContent
- Parameters:
out
- The writer into which to place the contents of this body evaluation- Throws:
IOException
- if an I/O error occurred while writing the contents of this BodyContent to the given Writer
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recycle
protected void recycle()This method shall "reset" the internal state of a BodyContentImpl, releasing all internal references, and preparing it for potential reuse by a later invocation ofPageContextImpl.pushBody(Writer)
.Note, that BodyContentImpl instances are usually owned by a PageContextImpl instance, and PageContextImpl instances are recycled and reused.
- See Also:
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