Package org.apache.lucene.util.fst
Class ReverseRandomAccessReader
- 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.boolean
reversed()
Returns true if this reader uses reversed bytes under-the-hood.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, readInt, readLELongs, readLong, 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. The contract on this method is that it should have the same behavior as reading the same number of bytes into a buffer and discarding its content. Negative values ofnumBytes
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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reversed
public boolean reversed()
Description copied from class:FST.BytesReader
Returns true if this reader uses reversed bytes under-the-hood.- Specified by:
reversed
in classFST.BytesReader
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