public class CompositeByteArrayRelativeWriter extends java.lang.Object implements IoRelativeWriter
CompositeByteArray
.
Using this interface has the advantage that it can be automatically
determined when a component ByteArray
can no longer be written
to, and thus components can be automatically flushed. This makes it easier to
use pooling for underlying ByteArray
s.
By providing an appropriate Expander
it is also possible to
automatically add more backing storage as more data is written.
Modifier and Type | Class and Description |
---|---|
static class |
CompositeByteArrayRelativeWriter.ChunkedExpander
Expands the supplied
CompositeByteArray by the number of
bytes provided in the constructor |
static interface |
CompositeByteArrayRelativeWriter.Expander
An object that knows how to expand a
CompositeByteArray . |
static interface |
CompositeByteArrayRelativeWriter.Flusher
An object that knows how to flush a
ByteArray . |
static class |
CompositeByteArrayRelativeWriter.NopExpander
No-op expander.
|
Modifier and Type | Field and Description |
---|---|
protected CompositeByteArray |
cba
The underlying
CompositeByteArray . |
protected ByteArray.Cursor |
cursor
A cursor of the underlying
CompositeByteArray . |
Constructor and Description |
---|
CompositeByteArrayRelativeWriter(CompositeByteArray cba,
CompositeByteArrayRelativeWriter.Expander expander,
CompositeByteArrayRelativeWriter.Flusher flusher,
boolean autoFlush)
Creates a new instance of CompositeByteArrayRelativeWriter.
|
Modifier and Type | Method and Description |
---|---|
void |
append(ByteArray ba)
Make a
ByteArray available for access at the end of this object. |
protected void |
cursorPassedFirstComponent()
Called whenever the cursor has passed from the
cba 's
first component. |
void |
flush()
Flush to the current index.
|
void |
flushTo(int index)
Flush to the given index.
|
void |
free()
Free all resources associated with this object.
|
int |
getIndex()
Get the index that will be used for the next access.
|
int |
getRemaining() |
boolean |
hasRemaining() |
int |
last()
Get the index after the last byte that can be accessed.
|
java.nio.ByteOrder |
order() |
void |
put(byte b)
Puts a
byte and advances the reader. |
void |
put(IoBuffer bb)
Puts enough bytes to fill the
IoBuffer and advances the reader. |
void |
putChar(char c)
Puts a
char and advances the reader. |
void |
putDouble(double d)
Puts a
double and advances the reader. |
void |
putFloat(float f)
Puts a
float and advances the reader. |
void |
putInt(int i)
Puts an
int and advances the reader. |
void |
putLong(long l)
Puts a
long and advances the reader. |
void |
putShort(short s)
Puts a
short and advances the reader. |
void |
skip(int length)
Advances the writer by the given number of bytes.
|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
getRemaining, hasRemaining, order
protected final CompositeByteArray cba
CompositeByteArray
.protected final ByteArray.Cursor cursor
CompositeByteArray
. This
cursor is never moved directly; its position only changes through calls
to relative read or write methods.public CompositeByteArrayRelativeWriter(CompositeByteArray cba, CompositeByteArrayRelativeWriter.Expander expander, CompositeByteArrayRelativeWriter.Flusher flusher, boolean autoFlush)
cba
- The CompositeByteArray to use to back this classexpander
- The expander. Will increase the size of the internal ByteArrayflusher
- Flushed the ByteArray when necessaryautoFlush
- Should this class automatically flush?public void flush()
public void flushTo(int index)
public void skip(int length)
IoRelativeWriter
skip
in interface IoRelativeWriter
protected void cursorPassedFirstComponent()
cba
's
first component. As the first component is no longer used, this provides
a good opportunity for subclasses to perform some action on it (such as
freeing it).public void put(byte b)
IoRelativeWriter
byte
and advances the reader.put
in interface IoRelativeWriter
public void put(IoBuffer bb)
IoRelativeWriter
IoBuffer
and advances the reader.put
in interface IoRelativeWriter
public void putShort(short s)
IoRelativeWriter
short
and advances the reader.putShort
in interface IoRelativeWriter
public void putInt(int i)
IoRelativeWriter
int
and advances the reader.putInt
in interface IoRelativeWriter
public void putLong(long l)
IoRelativeWriter
long
and advances the reader.putLong
in interface IoRelativeWriter
public void putFloat(float f)
IoRelativeWriter
float
and advances the reader.putFloat
in interface IoRelativeWriter
public void putDouble(double d)
IoRelativeWriter
double
and advances the reader.putDouble
in interface IoRelativeWriter
public void putChar(char c)
IoRelativeWriter
char
and advances the reader.putChar
in interface IoRelativeWriter
public final int getRemaining()
public final boolean hasRemaining()
public java.nio.ByteOrder order()
public final void append(ByteArray ba)
ByteArray
available for access at the end of this object.public final void free()
public final int getIndex()
public final int last()
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