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java.lang.Objectorg.apache.lucene.store.DataOutput
org.apache.lucene.store.IndexOutput
org.apache.lucene.store.BufferedIndexOutput
public abstract class BufferedIndexOutput
Base implementation class for buffered IndexOutput
.
Constructor Summary | |
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BufferedIndexOutput()
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Method Summary | |
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void |
close()
Closes this stream to further operations. |
void |
flush()
Forces any buffered output to be written. |
protected abstract void |
flushBuffer(byte[] b,
int offset,
int len)
Expert: implements buffer write. |
long |
getFilePointer()
Returns the current position in this file, where the next write will occur. |
abstract long |
length()
The number of bytes in the file. |
void |
seek(long pos)
Sets current position in this file, where the next write will occur. |
void |
writeByte(byte b)
Writes a single byte. |
void |
writeBytes(byte[] b,
int offset,
int length)
Writes an array of bytes. |
Methods inherited from class org.apache.lucene.store.IndexOutput |
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setLength |
Methods inherited from class org.apache.lucene.store.DataOutput |
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copyBytes, writeBytes, writeInt, writeLong, writeShort, writeString, writeStringSet, writeStringStringMap, writeVInt, writeVLong |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public BufferedIndexOutput()
Method Detail |
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public void writeByte(byte b) throws IOException
DataOutput
The most primitive data type is an eight-bit byte. Files are accessed as sequences of bytes. All other data types are defined as sequences of bytes, so file formats are byte-order independent.
writeByte
in class DataOutput
IOException
DataInput.readByte()
public void writeBytes(byte[] b, int offset, int length) throws IOException
DataOutput
writeBytes
in class DataOutput
b
- the bytes to writeoffset
- the offset in the byte arraylength
- the number of bytes to write
IOException
DataInput.readBytes(byte[],int,int)
public void flush() throws IOException
IndexOutput
flush
in class IndexOutput
IOException
protected abstract void flushBuffer(byte[] b, int offset, int len) throws IOException
b
- the bytes to writeoffset
- the offset in the byte arraylen
- the number of bytes to write
IOException
public void close() throws IOException
IndexOutput
close
in interface Closeable
close
in class IndexOutput
IOException
public long getFilePointer()
IndexOutput
getFilePointer
in class IndexOutput
IndexOutput.seek(long)
public void seek(long pos) throws IOException
IndexOutput
seek
in class IndexOutput
IOException
IndexOutput.getFilePointer()
public abstract long length() throws IOException
IndexOutput
length
in class IndexOutput
IOException
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