org.wings.io
Class CountingDeviceDelegator

java.lang.Object
  org.wings.io.CountingDeviceDelegator

All Implemented Interfaces:

Device

public final class CountingDeviceDelegator
extends Object
implements Device

Constructor Summary

CountingDeviceDelegator(Device d)

Method Summary

void	close() close the Device.
void	flush() Flush this Device.
long	getSize() returns the number of bytes written to this data sink.
boolean	isSizePreserving() returns, whether this the size of data put into this device is the same as comes out.
Device	print(char c) Print a character.
Device	print(char[] c) Print a character array.
Device	print(char[] c, int start, int len) Print len characters from the specified char array starting at offset off to this Device.
Device	print(int i) Print an integer.
Device	print(Object o) Print any Object
Device	print(String s) Print a String.
void	resetSize() reset the number of bytes to zero.
Device	write(byte[] b) Writes b.length bytes from the specified byte array to this output stream.
Device	write(byte[] b, int off, int len) Writes len bytes from the specified byte array starting at offset off to this Device.
Device	write(int c) Writes the specified byte to this data output stream.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

CountingDeviceDelegator

public CountingDeviceDelegator(Device d)

Method Detail

isSizePreserving

public boolean isSizePreserving()

Description copied from interface: Device

returns, whether this the size of data put into this device is the same as comes out. This is necessary to know if we want to send the content size: if we know the content size, but this device changes the size, we must not send it.

Specified by:

isSizePreserving in interface Device

Returns:

'true', if this device leaves the size of the data going through it, untouched. This is usually true.

flush

public void flush()
           throws IOException

Flush this Device.

Specified by:

flush in interface Device

Throws:

IOException

close

public void close()
           throws IOException

Description copied from interface: Device

close the Device.

Specified by:

close in interface Device

Throws:

IOException

getSize

public long getSize()

returns the number of bytes written to this data sink.

resetSize

public void resetSize()

reset the number of bytes to zero.

print

public Device print(char c)
             throws IOException

Print a character.

Specified by:

print in interface Device

Throws:

IOException

print

public Device print(char[] c)
             throws IOException

Print a character array.

Specified by:

print in interface Device

Throws:

IOException

print

public Device print(char[] c,
                    int start,
                    int len)
             throws IOException

Print len characters from the specified char array starting at offset off to this Device.

Specified by:

print in interface Device

Throws:

IOException

print

public Device print(String s)
             throws IOException

Print a String.

Specified by:

print in interface Device

Throws:

IOException

print

public Device print(int i)
             throws IOException

Print an integer.

Specified by:

print in interface Device

Throws:

IOException

print

public Device print(Object o)
             throws IOException

Print any Object

Specified by:

print in interface Device

Throws:

IOException

write

public Device write(int c)
             throws IOException

Writes the specified byte to this data output stream.

Specified by:

write in interface Device

Throws:

IOException

write

public Device write(byte[] b)
             throws IOException

Writes b.length bytes from the specified byte array to this output stream.

Specified by:

write in interface Device

Throws:

IOException

write

public Device write(byte[] b,
                    int off,
                    int len)
             throws IOException

Writes len bytes from the specified byte array starting at offset off to this Device.

Specified by:

write in interface Device

Throws:

IOException