org.maverickdbms.basic
Class OSFile

java.lang.Object
  org.maverickdbms.basic.OSFile

All Implemented Interfaces:

Variable

public class OSFile

extends java.lang.Object

implements Variable

OSFile provides an implementation of a MV OS file.

Field Summary

protected java.io.RandomAccessFile	file
static int	READ_ONLY
static int	READ_WRITE
static int	WRITE_ONLY

Constructor Summary

OSFile()

Method Summary

mvString	FILEINFO(mvString result, ConstantString code)
ConstantString	OSBREAD(mvString var, ConstantString length) Read block from current file position.
ConstantString	OSBWRITE(ConstantString var, boolean append) Write block
ConstantString	OSCLOSE() Close OS file.
ConstantString	OSOPEN(ConstantString name, int flags) Open OS file.
ConstantString	OSREAD(mvString var) Read record from current file position.
ConstantString	OSWRITE(ConstantString var) Write record at current filepostion.

Methods inherited from class java.lang.Object

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

Field Detail

READ_ONLY

public static final int READ_ONLY

See Also:

Constant Field Values

WRITE_ONLY

public static final int WRITE_ONLY

See Also:

Constant Field Values

READ_WRITE

public static final int READ_WRITE

See Also:

Constant Field Values

file

protected java.io.RandomAccessFile file

Constructor Detail

OSFile

public OSFile()

Method Detail

FILEINFO

public mvString FILEINFO(mvString result,
                         ConstantString code)
                  throws mvException

Throws:

mvException

OSCLOSE

public ConstantString OSCLOSE()
                       throws mvException

Close OS file.

Throws:

mvException

OSOPEN

public ConstantString OSOPEN(ConstantString name,
                             int flags)
                      throws mvException

Open OS file.

Throws:

mvException

OSBREAD

public ConstantString OSBREAD(mvString var,
                              ConstantString length)
                       throws mvException

Read block from current file position.

Throws:

mvException

OSREAD

public ConstantString OSREAD(mvString var)
                      throws mvException

Read record from current file position.

Throws:

mvException

OSBWRITE

public ConstantString OSBWRITE(ConstantString var,
                               boolean append)
                        throws mvException

Write block

Throws:

mvException

OSWRITE

public ConstantString OSWRITE(ConstantString var)
                       throws mvException

Write record at current filepostion.

Throws:

mvException