public class DataOutputBuffer extends DataOutputStream
DataOutput implementation that writes to an in-memory
buffer.
This saves memory over creating a new DataOutputStream and ByteArrayOutputStream each time data is written.
Typical usage is something like the following:
DataOutputBuffer buffer = new DataOutputBuffer();
while (... loop condition ...) {
buffer.reset();
... write buffer using DataOutput methods ...
byte[] data = buffer.getData();
int dataLength = buffer.getLength();
... write data to its ultimate destination ...
}
writtenout| Constructor and Description |
|---|
DataOutputBuffer()
Constructs a new empty buffer.
|
DataOutputBuffer(int size) |
| Modifier and Type | Method and Description |
|---|---|
byte[] |
getData()
Returns the current contents of the buffer.
|
int |
getLength()
Returns the length of the valid data currently in the buffer.
|
DataOutputBuffer |
reset()
Resets the buffer to empty.
|
void |
write(DataInput in,
int length)
Writes bytes from a DataInput directly into the buffer.
|
void |
writeTo(OutputStream out)
Write to a file stream
|
flush, size, write, write, writeBoolean, writeByte, writeBytes, writeChar, writeChars, writeDouble, writeFloat, writeInt, writeLong, writeShort, writeUTFclose, writeclone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, waitwritepublic DataOutputBuffer()
public DataOutputBuffer(int size)
public byte[] getData()
getLength().public int getLength()
public DataOutputBuffer reset()
public void write(DataInput in, int length) throws IOException
IOExceptionpublic void writeTo(OutputStream out) throws IOException
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