File	Doc	Category	Size	Date	Package
OutputStream.java	API Doc	Apache Lucene 1.4.3	5049	Tue Mar 30 00:48:06 BST 2004	org.apache.lucene.store

OutputStream

• java.lang.Object

Fields Summary
static final int	BUFFER_SIZE
private final byte[]	buffer
private long	bufferStart
private int	bufferPosition

Constructors Summary

Methods Summary
public void	close() Closes this stream to further operations. flush();
protected final void	flush() Forces any buffered output to be written. flushBuffer(buffer, bufferPosition); bufferStart += bufferPosition; bufferPosition = 0;
protected abstract void	flushBuffer(byte[] b, int len) Expert: implements buffer write. Writes bytes at the current position in the output. param b the bytes to write param len the number of bytes to write
public final long	getFilePointer() Returns the current position in this file, where the next write will occur. see #seek(long) return bufferStart + bufferPosition;
public abstract long	length() The number of bytes in the file.
public void	seek(long pos) Sets current position in this file, where the next write will occur. see #getFilePointer() flush(); bufferStart = pos;
public final void	writeByte(byte b) Writes a single byte. see InputStream#readByte() // position in buffer if (bufferPosition >= BUFFER_SIZE) flush(); buffer[bufferPosition++] = b;
public final void	writeBytes(byte[] b, int length) Writes an array of bytes. param b the bytes to write param length the number of bytes to write see InputStream#readBytes(byte[],int,int) for (int i = 0; i < length; i++) writeByte(b[i]);
public final void	writeChars(java.lang.String s, int start, int length) Writes a sequence of UTF-8 encoded characters from a string. param s the source of the characters param start the first character in the sequence param length the number of characters in the sequence see InputStream#readChars(char[],int,int) final int end = start + length; for (int i = start; i < end; i++) { final int code = (int)s.charAt(i); if (code >= 0x01 && code <= 0x7F) writeByte((byte)code); else if (((code >= 0x80) && (code <= 0x7FF)) || code == 0) { writeByte((byte)(0xC0 | (code >> 6))); writeByte((byte)(0x80 | (code & 0x3F))); } else { writeByte((byte)(0xE0 | (code >>> 12))); writeByte((byte)(0x80 | ((code >> 6) & 0x3F))); writeByte((byte)(0x80 | (code & 0x3F))); } }
public final void	writeInt(int i) Writes an int as four bytes. see InputStream#readInt() writeByte((byte)(i >> 24)); writeByte((byte)(i >> 16)); writeByte((byte)(i >> 8)); writeByte((byte) i);
public final void	writeLong(long i) Writes a long as eight bytes. see InputStream#readLong() writeInt((int) (i >> 32)); writeInt((int) i);
public final void	writeString(java.lang.String s) Writes a string. see InputStream#readString() int length = s.length(); writeVInt(length); writeChars(s, 0, length);
public final void	writeVInt(int i) Writes an int in a variable-length format. Writes between one and five bytes. Smaller values take fewer bytes. Negative numbers are not supported. see InputStream#readVInt() while ((i & ~0x7F) != 0) { writeByte((byte)((i & 0x7f) | 0x80)); i >>>= 7; } writeByte((byte)i);
public final void	writeVLong(long i) Writes an long in a variable-length format. Writes between one and five bytes. Smaller values take fewer bytes. Negative numbers are not supported. see InputStream#readVLong() while ((i & ~0x7F) != 0) { writeByte((byte)((i & 0x7f) | 0x80)); i >>>= 7; } writeByte((byte)i);