- java.lang.Object
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- org.apache.lucene.store.DataInput
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- org.apache.lucene.util.fst.FST.BytesReader
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- org.apache.lucene.util.fst.ReverseRandomAccessReader
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- All Implemented Interfaces:
java.lang.Cloneable
final class ReverseRandomAccessReader extends FST.BytesReader
Implements reverse read from a RandomAccessInput.
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Field Summary
Fields Modifier and Type Field Description private RandomAccessInput
in
private long
pos
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Constructor Summary
Constructors Constructor Description ReverseRandomAccessReader(RandomAccessInput in)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description long
getPosition()
Get current read position.byte
readByte()
Reads and returns a single byte.void
readBytes(byte[] b, int offset, int len)
Reads a specified number of bytes into an array at the specified offset.void
setPosition(long pos)
Set current read position.void
skipBytes(long count)
Skip overnumBytes
bytes.-
Methods inherited from class org.apache.lucene.store.DataInput
clone, readBytes, readFloats, readGroupVInt, readGroupVInts, readInt, readInts, readLong, readLongs, readMapOfStrings, readSetOfStrings, readShort, readString, readVInt, readVLong, readZInt, readZLong
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Field Detail
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in
private final RandomAccessInput in
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pos
private long pos
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Constructor Detail
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ReverseRandomAccessReader
public ReverseRandomAccessReader(RandomAccessInput in)
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Method Detail
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readByte
public byte readByte() throws java.io.IOException
Description copied from class:DataInput
Reads and returns a single byte.- Specified by:
readByte
in classDataInput
- Throws:
java.io.IOException
- See Also:
DataOutput.writeByte(byte)
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readBytes
public void readBytes(byte[] b, int offset, int len) throws java.io.IOException
Description copied from class:DataInput
Reads a specified number of bytes into an array at the specified offset.- Specified by:
readBytes
in classDataInput
- Parameters:
b
- the array to read bytes intooffset
- the offset in the array to start storing byteslen
- the number of bytes to read- Throws:
java.io.IOException
- See Also:
DataOutput.writeBytes(byte[],int)
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skipBytes
public void skipBytes(long count)
Description copied from class:DataInput
Skip overnumBytes
bytes. This method may skip bytes in whatever way is most optimal, and may not have the same behavior as reading the skipped bytes. In general, negativenumBytes
are not supported.
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getPosition
public long getPosition()
Description copied from class:FST.BytesReader
Get current read position.- Specified by:
getPosition
in classFST.BytesReader
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setPosition
public void setPosition(long pos)
Description copied from class:FST.BytesReader
Set current read position.- Specified by:
setPosition
in classFST.BytesReader
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