DatabaseFile

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org.hsqldb
Class DatabaseFile

java.lang.Object
  java.io.RandomAccessFile
      org.hsqldb.DatabaseFile

All Implemented Interfaces:: java.io.DataInput, java.io.DataOutput

Direct Known Subclasses:: ReverseDatabaseFile

class DatabaseFile
extends java.io.RandomAccessFile

This class provides methods for reading and writing data from a database file such as that used for storing a cached table.

Version:: 1.7.0

Field Summary

protected int count


protected byte[] in


protected int index


protected long pos


Fields inherited from class java.io.RandomAccessFile

Constructor Summary

(package private) DatabaseFile(java.lang.String name, java.lang.String mode, int inSize)


Method Summary

void close()
          This method closes the file and frees up all file related system resources.

int read()
          This method reads a single byte of data from the file and returns it as an integer.

int read(byte[] b)
          This method reads bytes from the file into the specified array.

int readInteger()


void readSeek(long newPos)


protected void realSeek(long newPos)


void seek(long newPos)
          This method sets the current file position to the specified offset from the beginning of the file.

void write(byte[] b)
          This method writes all the bytes in the specified array to the file.

void writeInteger(int i)


Methods inherited from class java.io.RandomAccessFile

getChannel, getFD, getFilePointer, length, read, readBoolean, readByte, readChar, readDouble, readFloat, readFully, readFully, readInt, readLine, readLong, readShort, readUnsignedByte, readUnsignedShort, readUTF, setLength, skipBytes, write, write, writeBoolean, writeByte, writeBytes, writeChar, writeChars, writeDouble, writeFloat, writeInt, writeLong, writeShort, writeUTF

Methods inherited from class java.lang.Object

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

Field Detail

in

protected byte[] in

pos

protected long pos

index

protected int index

count

protected int count

Constructor Detail

DatabaseFile

DatabaseFile(java.lang.String name,
             java.lang.String mode,
             int inSize)
       throws java.io.FileNotFoundException,
              java.io.IOException

Method Detail