org.wings.io
Class DeviceBuffer

java.lang.Object
  org.wings.io.DeviceBuffer

All Implemented Interfaces:

Device

public final class DeviceBuffer
extends Object
implements Device

A Device, that buffers the data written to it to be written to some other Device later (see writeTo(Device))

Author:

Armin Haaf

Constructor Summary

DeviceBuffer()

DeviceBuffer(int initialCapacity)

DeviceBuffer(int initialCapacity, int capacityIncrement)

Method Summary

void	clear()
void	close() close the Device.
void	flush() Flush this Device.
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 an array of chars.
Device	print(char[] c, int start, int len) Print a character array.
Device	print(int i) Print an integer.
Device	print(Object o) Print any Object
Device	print(String s) Print a String.
Device	write(byte b) Writes b.length bytes from the specified byte array to this output stream.
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 output stream.
Device	write(int c) Writes the specified byte to this data output stream.
void	writeTo(Device d)

Methods inherited from class java.lang.Object

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

Constructor Detail

DeviceBuffer

public DeviceBuffer(int initialCapacity,
                    int capacityIncrement)

DeviceBuffer

public DeviceBuffer(int initialCapacity)

DeviceBuffer

public DeviceBuffer()

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()

Description copied from interface: Device

Flush this Device.

Specified by:

flush in interface Device

close

public void close()

Description copied from interface: Device

close the Device.

Specified by:

close in interface Device

print

public Device print(String s)
             throws IOException

Print a String.

Specified by:

print in interface Device

Throws:

IOException

print

public Device print(char[] c)
             throws IOException

Print an array of chars.

Specified by:

print in interface Device

Throws:

IOException

print

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

Print a character array.

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

print

public Device print(char c)
             throws IOException

Print a character.

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.

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

clear

public void clear()

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 output stream.

Specified by:

write in interface Device

Throws:

IOException

writeTo

public void writeTo(Device d)