| java.lang.Object
 java.io.OutputStream
com.sleepycat.util.FastOutputStream
All known Subclasses: com.sleepycat.bind.tuple.TupleOutput,
| FastOutputStream | | public class FastOutputStream extends OutputStream (Code) | | A replacement for ByteArrayOutputStream that does not synchronize every
byte read.
This class extends
OutputStream and its write()
methods allow it to be used as a standard output stream. In addition, it
provides writeFast() methods that are not declared to throw
IOException. IOException is never thrown by this
class.
author:
Mark Hayes |
| Field Summary | |
| final public static int | DEFAULT_BUMP_SIZE
The default amount that the buffer is increased when it is full. | | final public static int | DEFAULT_INIT_SIZE
The default initial size of the buffer if no initialSize parameter is
specified. |
| Constructor Summary | |
| public | FastOutputStream()
Creates an output stream with default sizes. | | public | FastOutputStream(int initialSize)
Creates an output stream with a default bump size and a given initial
size. | | public | FastOutputStream(int initialSize, int bumpSize)
Creates an output stream with a given bump size and initial size. | | public | FastOutputStream(byte[] buffer)
Creates an output stream with a given initial buffer and a default
bump size. | | public | FastOutputStream(byte[] buffer, int bumpSize)
Creates an output stream with a given initial buffer and a given
bump size.
Parameters:
buffer - the initial buffer; will be owned by this object.
Parameters:
bumpSize - the amount to increment the buffer. |
| Method Summary | |
| public void | addSize(int sizeAdded)
Skip the given number of bytes in the buffer. | | public byte[] | getBufferBytes()
Returns the buffer owned by this object. | | public int | getBufferLength()
Returns the length used in the internal buffer, i.e., the offset at
which data will be written next. | | public int | getBufferOffset()
Returns the offset of the internal buffer. | | public void | makeSpace(int sizeNeeded)
Ensure that at least the given number of bytes are available in the
internal buffer. | | public void | reset()
| | public int | size()
| | public byte[] | toByteArray()
| | public String | toString()
| | public String | toString(String encoding)
| | public void | write(int b)
| | public void | write(byte[] fromBuf)
| | public void | write(byte[] fromBuf, int offset, int length)
| | final public void | writeFast(int b)
Equivalent to write(int) but does not throw
IOException. | | final public void | writeFast(byte[] fromBuf)
Equivalent to write(byte[]) but does not throw
IOException. | | final public void | writeFast(byte[] fromBuf, int offset, int length)
Equivalent to write(byte[],int,int) but does not throw
IOException. | | public void | writeTo(OutputStream out)
|
| DEFAULT_BUMP_SIZE | | final public static int DEFAULT_BUMP_SIZE(Code) | | The default amount that the buffer is increased when it is full. This
constant is zero, which means to double the current buffer size.
|
| DEFAULT_INIT_SIZE | | final public static int DEFAULT_INIT_SIZE(Code) | | The default initial size of the buffer if no initialSize parameter is
specified. This constant is 100 bytes.
|
| FastOutputStream | | public FastOutputStream()(Code) | | Creates an output stream with default sizes.
|
| FastOutputStream | | public FastOutputStream(int initialSize)(Code) | | Creates an output stream with a default bump size and a given initial
size.
Parameters:
initialSize - the initial size of the buffer. |
| FastOutputStream | | public FastOutputStream(int initialSize, int bumpSize)(Code) | | Creates an output stream with a given bump size and initial size.
Parameters:
initialSize - the initial size of the buffer.
Parameters:
bumpSize - the amount to increment the buffer. |
| FastOutputStream | | public FastOutputStream(byte[] buffer)(Code) | | Creates an output stream with a given initial buffer and a default
bump size.
Parameters:
buffer - the initial buffer; will be owned by this object. |
| FastOutputStream | | public FastOutputStream(byte[] buffer, int bumpSize)(Code) | | Creates an output stream with a given initial buffer and a given
bump size.
Parameters:
buffer - the initial buffer; will be owned by this object.
Parameters:
bumpSize - the amount to increment the buffer. If zero (thedefault), the current buffer size will be doubled when the buffer isfull. |
| addSize | | public void addSize(int sizeAdded)(Code) | | Skip the given number of bytes in the buffer.
Parameters:
sizeAdded - number of bytes to skip. |
| getBufferBytes | | public byte[] getBufferBytes()(Code) | | Returns the buffer owned by this object.
the buffer. |
| getBufferLength | | public int getBufferLength()(Code) | | Returns the length used in the internal buffer, i.e., the offset at
which data will be written next.
the buffer length. |
| getBufferOffset | | public int getBufferOffset()(Code) | | Returns the offset of the internal buffer.
always zero currently. |
| makeSpace | | public void makeSpace(int sizeNeeded)(Code) | | Ensure that at least the given number of bytes are available in the
internal buffer.
Parameters:
sizeNeeded - the number of bytes desired. |
| reset | | public void reset()(Code) | | |
| toByteArray | | public byte[] toByteArray()(Code) | | |
| write | | public void write(byte[] fromBuf, int offset, int length) throws IOException(Code) | | |
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