org.apache.lucene.store
public abstract class IndexInput extends Object implements Cloneable
See Also: Directory
Method Summary | |
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Object | clone() Returns a clone of this stream.
|
abstract void | close() Closes the stream to futher operations. |
abstract long | getFilePointer() Returns the current position in this file, where the next read will
occur. |
abstract long | length() The number of bytes in the file. |
abstract byte | readByte() Reads and returns a single byte. |
abstract void | readBytes(byte[] b, int offset, int len) Reads a specified number of bytes into an array at the specified offset. |
void | readChars(char[] buffer, int start, int length) Reads UTF-8 encoded characters into an array. |
int | readInt() Reads four bytes and returns an int. |
long | readLong() Reads eight bytes and returns a long. |
String | readString() Reads a string. |
int | readVInt() Reads an int stored in variable-length format. |
long | readVLong() Reads a long stored in variable-length format. |
abstract void | seek(long pos) Sets current position in this file, where the next read will occur. |
void | skipChars(int length)
Expert
Similar to (char[], int, int) but does not do any conversion operations on the bytes it is reading in. |
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.
See Also: IndexInput
See Also: IndexOutput
Parameters: b the array to read bytes into offset the offset in the array to start storing bytes len the number of bytes to read
See Also: (byte[],int)
Parameters: buffer the array to read characters into start the offset in the array to start storing characters length the number of characters to read
See Also: IndexOutput
See Also: IndexOutput
See Also: IndexOutput
See Also: writeString
See Also: IndexOutput
See Also: getFilePointer
(char[], int, int)
but does not do any conversion operations on the bytes it is reading in. It still
has to invoke readByte just as (char[], int, int)
does, but it does not need a buffer to store anything
and it does not have to do any of the bitwise operations, since we don't actually care what is in the byte except to determine
how many more bytes to readParameters: length The number of chars to read