Module org.apache.lucene.backward_codecs

Package org.apache.lucene.backward_codecs.store

Class EndiannessReverserIndexInput

java.lang.Object

org.apache.lucene.store.DataInput

org.apache.lucene.store.IndexInput

org.apache.lucene.store.FilterIndexInput

org.apache.lucene.backward_codecs.store.EndiannessReverserIndexInput

All Implemented Interfaces:

Closeable, AutoCloseable, Cloneable

final class EndiannessReverserIndexInput
extends FilterIndexInput

A IndexInput wrapper that changes the endianness of the provided index input.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	EndiannessReverserIndexInput.EndiannessReverserRandomAccessInput	A RandomAccessInput wrapper that changes the endianness of the provided index input.

Field Summary

Fields inherited from class org.apache.lucene.store.FilterIndexInput

in

Constructor Summary

Constructors

Constructor	Description
EndiannessReverserIndexInput(IndexInput in)

Method Summary

Modifier and Type	Method	Description
IndexInput	clone()	Returns a clone of this stream.
RandomAccessInput	randomAccessSlice(long offset, long length)	Creates a random-access slice of this index input, with the given offset and length.
void	readFloats(float[] dst, int offset, int length)	Reads a specified number of floats into an array at the specified offset.
int	readInt()	Reads four bytes and returns an int (LE byte order).
void	readInts(int[] dst, int offset, int length)	Reads a specified number of ints into an array at the specified offset.
long	readLong()	Reads eight bytes and returns a long (LE byte order).
void	readLongs(long[] dst, int offset, int length)	Read a specified number of longs.
short	readShort()	Reads two bytes and returns a short (LE byte order).
IndexInput	slice(String sliceDescription, long offset, long length)	Creates a slice of this index input, with the given description, offset, and length.

Methods inherited from class org.apache.lucene.store.FilterIndexInput

close, getDelegate, getFilePointer, length, readByte, readBytes, seek, unwrap, unwrapOnlyTest

Methods inherited from class org.apache.lucene.store.IndexInput

getFullSliceDescription, skipBytes, toString

Methods inherited from class org.apache.lucene.store.DataInput

readBytes, readGroupVInt, readGroupVInts, readMapOfStrings, readSetOfStrings, readString, readVInt, readVLong, readZInt, readZLong

Methods inherited from class java.lang.Object

equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Details

EndiannessReverserIndexInput

EndiannessReverserIndexInput(IndexInput in)

Method Details

readShort

public short readShort()
                throws IOException

Description copied from class: DataInput

Reads two bytes and returns a short (LE byte order).

Overrides:

readShort in class DataInput

Throws:

IOException

See Also:

• DataOutput.writeShort(short)
• BitUtil.VH_LE_SHORT

readInt

public int readInt()
            throws IOException

Description copied from class: DataInput

Reads four bytes and returns an int (LE byte order).

Overrides:

readInt in class DataInput

Throws:

IOException

See Also:

• DataOutput.writeInt(int)
• BitUtil.VH_LE_INT

readLong

public long readLong()
              throws IOException

Description copied from class: DataInput

Reads eight bytes and returns a long (LE byte order).

Overrides:

readLong in class DataInput

Throws:

IOException

See Also:

• DataOutput.writeLong(long)
• BitUtil.VH_LE_LONG

readLongs

public void readLongs(long[] dst,
 int offset,
 int length)
               throws IOException

Description copied from class: DataInput

Read a specified number of longs.

Overrides:

readLongs in class DataInput

Throws:

IOException

readInts

public void readInts(int[] dst,
 int offset,
 int length)
              throws IOException

Description copied from class: DataInput

Reads a specified number of ints into an array at the specified offset.

Overrides:

readInts in class DataInput

Parameters:

dst - the array to read bytes into

offset - the offset in the array to start storing ints

length - the number of ints to read

Throws:

IOException

readFloats

public void readFloats(float[] dst,
 int offset,
 int length)
                throws IOException

Description copied from class: DataInput

Reads a specified number of floats into an array at the specified offset.

Overrides:

readFloats in class DataInput

Parameters:

dst - the array to read bytes into

offset - the offset in the array to start storing floats

length - the number of floats to read

Throws:

IOException

clone

public IndexInput clone()

Description copied from class: IndexInput

Returns a clone of this stream.

Clones of a stream access the same data, and are positioned at the same point as the stream they were cloned from.

Expert: Subclasses must ensure that clones may be positioned at different points in the input from each other and from the stream they were cloned from.

Warning: Lucene never closes cloned IndexInputs, it will only call IndexInput.close() on the original object.

If you access the cloned IndexInput after closing the original object, any readXXX methods will throw AlreadyClosedException.

This method is NOT thread safe, so if the current IndexInput is being used by one thread while clone is called by another, disaster could strike.

Overrides:

clone in class IndexInput

slice

public IndexInput slice(String sliceDescription,
 long offset,
 long length)
                 throws IOException

Description copied from class: IndexInput

Creates a slice of this index input, with the given description, offset, and length. The slice is sought to the beginning.

Overrides:

slice in class FilterIndexInput

Throws:

IOException

randomAccessSlice

public RandomAccessInput randomAccessSlice(long offset,
 long length)
                                    throws IOException

Description copied from class: IndexInput

Creates a random-access slice of this index input, with the given offset and length.

The default implementation calls IndexInput.slice(java.lang.String, long, long), and it doesn't support random access, it implements absolute reads as seek+read.

Overrides:

randomAccessSlice in class IndexInput

Throws:

IOException