org.tmatesoft.sqljet.core.internal.memory

Class SqlJetMemoryPointer

java.lang.Object

org.tmatesoft.sqljet.core.internal.memory.SqlJetMemoryPointer

All Implemented Interfaces:

ISqlJetMemoryPointer

public final class SqlJetMemoryPointer
extends java.lang.Object
implements ISqlJetMemoryPointer

Author:

TMate Software Ltd., Sergey Scherbina (sergey.scherbina@gmail.com)

Constructor Summary

Constructors

Constructor and Description
SqlJetMemoryPointer(ISqlJetMemoryBuffer buffer, int pointer)
SqlJetMemoryPointer(ISqlJetMemoryBuffer buffer, int pointer, int limit)

Method Summary

Modifier and Type	Method and Description
int	compareTo(ISqlJetMemoryPointer ptr)
void	copyFrom(int dstPos, ISqlJetMemoryPointer src, int srcPos, int length)
void	copyFrom(ISqlJetMemoryPointer src, int length)
void	copyFrom(ISqlJetMemoryPointer src, int srcPos, int length)
void	fill(int count, byte value)
void	fill(int from, int count, byte value)
int	getAbsolute(int pointer)
ISqlJetMemoryBuffer	getBuffer() Get buffer which contains pointer.
byte	getByte() Read byte at current address.
byte	getByte(int pointer) Read byte at pointer.
void	getBytes(byte[] bytes)
void	getBytes(int pointer, byte[] bytes)
void	getBytes(int pointer, byte[] bytes, int count)
void	getBytes(int pointer, byte[] bytes, int to, int count)
int	getByteUnsigned() Read unsigned byte at current address.
int	getByteUnsigned(int pointer) Read unsigned byte at pointer.
ISqlJetMemoryPointer	getIdentic()
int	getInt() Read int at current address.
int	getInt(int pointer) Read int at pointer.
long	getIntUnsigned() Read unsigned int at current address.
long	getIntUnsigned(int pointer) Read unsigned int at pointer.
int	getLimit()
long	getLong() Read long at current address.
long	getLong(int pointer) Read long at pointer.
ISqlJetMemoryPointer	getMoved(int count)
int	getPointer() Get pointer address (offset in buffer).
short	getShort() Read short at current address.
short	getShort(int pointer) Read short at pointer.
int	getShortUnsigned() Read unsigned short at current address.
int	getShortUnsigned(int pointer) Read unsigned short at pointer.
void	limit(int n)
void	movePointer(int count) Move pointer.
void	putByte(byte value) Write byte at current address.
void	putByte(int pointer, byte value) Write byte at pointer.
void	putBytes(byte[] bytes)
void	putBytes(int pointer, byte[] bytes)
void	putBytes(int pointer, byte[] bytes, int count)
void	putBytes(int pointer, byte[] bytes, int to, int count)
void	putByteUnsigned(int value) Write unsigned byte at current address.
void	putByteUnsigned(int pointer, int value) Write unsigned byte at pointer.
void	putInt(int value) Write int at current address.
void	putInt(int pointer, int value) Write int at pointer.
void	putIntUnsigned(int pointer, long value) Write unsigned int at pointer.
void	putIntUnsigned(long value) Write unsigned int at current address.
void	putLong(int pointer, long value) Write long at pointer.
void	putLong(long value) Write long at current address.
void	putShort(int pointer, short value) Write short at pointer.
void	putShort(short value) Write short at current address.
void	putShortUnsigned(int value) Write unsigned short at current address.
void	putShortUnsigned(int pointer, int value) Write unsigned short at pointer.
int	readFromFile(int pointer, java.io.RandomAccessFile file, long position, int count) Read from file into memory chunk at pointer.
int	readFromFile(java.io.RandomAccessFile file, long position, int count) Read from file at current address.
int	remaining()
void	setPointer(int pointer) Set pointer address (offset in buffer).
int	writeToFile(int pointer, java.io.RandomAccessFile file, long position, int count) Write from memory chunk at pointer to file.
int	writeToFile(java.io.RandomAccessFile file, long position, int count) Write to file at current address.

Methods inherited from class java.lang.Object

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

Constructor Detail

SqlJetMemoryPointer

public SqlJetMemoryPointer(ISqlJetMemoryBuffer buffer,
                           int pointer)

SqlJetMemoryPointer

public SqlJetMemoryPointer(ISqlJetMemoryBuffer buffer,
                           int pointer,
                           int limit)

Method Detail

getBuffer

public final ISqlJetMemoryBuffer getBuffer()

Description copied from interface: ISqlJetMemoryPointer

Get buffer which contains pointer.

Specified by:

getBuffer in interface ISqlJetMemoryPointer

Returns:

getPointer

public final int getPointer()

Description copied from interface: ISqlJetMemoryPointer

Get pointer address (offset in buffer).

Specified by:

getPointer in interface ISqlJetMemoryPointer

Returns:

setPointer

public final void setPointer(int pointer)

Description copied from interface: ISqlJetMemoryPointer

Set pointer address (offset in buffer).

Specified by:

setPointer in interface ISqlJetMemoryPointer

movePointer

public final void movePointer(int count)

Description copied from interface: ISqlJetMemoryPointer

Move pointer. Add some count to pointer address. Count may be negative.

Specified by:

movePointer in interface ISqlJetMemoryPointer

Parameters:

count - count which added to address. May be negative.

getByte

public final byte getByte()

Description copied from interface: ISqlJetMemoryPointer

Read byte at current address.

Specified by:

getByte in interface ISqlJetMemoryPointer

Returns:

getInt

public final int getInt()

Description copied from interface: ISqlJetMemoryPointer

Read int at current address.

Specified by:

getInt in interface ISqlJetMemoryPointer

Returns:

getLong

public final long getLong()

Description copied from interface: ISqlJetMemoryPointer

Read long at current address.

Specified by:

getLong in interface ISqlJetMemoryPointer

Returns:

getShort

public final short getShort()

Description copied from interface: ISqlJetMemoryPointer

Read short at current address.

Specified by:

getShort in interface ISqlJetMemoryPointer

Returns:

getByteUnsigned

public final int getByteUnsigned()

Description copied from interface: ISqlJetMemoryPointer

Read unsigned byte at current address.

Specified by:

getByteUnsigned in interface ISqlJetMemoryPointer

Returns:

getIntUnsigned

public final long getIntUnsigned()

Description copied from interface: ISqlJetMemoryPointer

Read unsigned int at current address.

Specified by:

getIntUnsigned in interface ISqlJetMemoryPointer

Returns:

getShortUnsigned

public final int getShortUnsigned()

Description copied from interface: ISqlJetMemoryPointer

Read unsigned short at current address.

Specified by:

getShortUnsigned in interface ISqlJetMemoryPointer

Returns:

putByte

public final void putByte(byte value)

Description copied from interface: ISqlJetMemoryPointer

Write byte at current address.

Specified by:

putByte in interface ISqlJetMemoryPointer

putInt

public final void putInt(int value)

Description copied from interface: ISqlJetMemoryPointer

Write int at current address.

Specified by:

putInt in interface ISqlJetMemoryPointer

putLong

public final void putLong(long value)

Description copied from interface: ISqlJetMemoryPointer

Write long at current address.

Specified by:

putLong in interface ISqlJetMemoryPointer

putShort

public final void putShort(short value)

Description copied from interface: ISqlJetMemoryPointer

Write short at current address.

Specified by:

putShort in interface ISqlJetMemoryPointer

putByteUnsigned

public final void putByteUnsigned(int value)

Description copied from interface: ISqlJetMemoryPointer

Write unsigned byte at current address.

Specified by:

putByteUnsigned in interface ISqlJetMemoryPointer

putIntUnsigned

public final void putIntUnsigned(long value)

Description copied from interface: ISqlJetMemoryPointer

Write unsigned int at current address.

Specified by:

putIntUnsigned in interface ISqlJetMemoryPointer

putShortUnsigned

public final void putShortUnsigned(int value)

Description copied from interface: ISqlJetMemoryPointer

Write unsigned short at current address.

Specified by:

putShortUnsigned in interface ISqlJetMemoryPointer

readFromFile

public final int readFromFile(java.io.RandomAccessFile file,
                              long position,
                              int count)
                       throws java.io.IOException

Description copied from interface: ISqlJetMemoryPointer

Read from file at current address.

Specified by:

readFromFile in interface ISqlJetMemoryPointer

Returns:

Throws:

java.io.IOException

writeToFile

public final int writeToFile(java.io.RandomAccessFile file,
                             long position,
                             int count)
                      throws java.io.IOException

Description copied from interface: ISqlJetMemoryPointer

Write to file at current address.

Specified by:

writeToFile in interface ISqlJetMemoryPointer

Returns:

Throws:

java.io.IOException

getAbsolute

public final int getAbsolute(int pointer)

Specified by:

getAbsolute in interface ISqlJetMemoryPointer

Parameters:

pointer -

Returns:

getByte

public final byte getByte(int pointer)

Description copied from interface: ISqlJetMemoryPointer

Read byte at pointer.

Specified by:

getByte in interface ISqlJetMemoryPointer

Returns:

getByteUnsigned

public final int getByteUnsigned(int pointer)

Description copied from interface: ISqlJetMemoryPointer

Read unsigned byte at pointer.

Specified by:

getByteUnsigned in interface ISqlJetMemoryPointer

Returns:

getInt

public final int getInt(int pointer)

Description copied from interface: ISqlJetMemoryPointer

Read int at pointer.

Specified by:

getInt in interface ISqlJetMemoryPointer

Returns:

getIntUnsigned

public final long getIntUnsigned(int pointer)

Description copied from interface: ISqlJetMemoryPointer

Read unsigned int at pointer.

Specified by:

getIntUnsigned in interface ISqlJetMemoryPointer

Returns:

getLong

public final long getLong(int pointer)

Description copied from interface: ISqlJetMemoryPointer

Read long at pointer.

Specified by:

getLong in interface ISqlJetMemoryPointer

Returns:

getShort

public final short getShort(int pointer)

Description copied from interface: ISqlJetMemoryPointer

Read short at pointer.

Specified by:

getShort in interface ISqlJetMemoryPointer

Returns:

getShortUnsigned

public final int getShortUnsigned(int pointer)

Description copied from interface: ISqlJetMemoryPointer

Read unsigned short at pointer.

Specified by:

getShortUnsigned in interface ISqlJetMemoryPointer

Returns:

putByte

public final void putByte(int pointer,
                          byte value)

Description copied from interface: ISqlJetMemoryPointer

Write byte at pointer.

Specified by:

putByte in interface ISqlJetMemoryPointer

putByteUnsigned

public final void putByteUnsigned(int pointer,
                                  int value)

Description copied from interface: ISqlJetMemoryPointer

Write unsigned byte at pointer.

Specified by:

putByteUnsigned in interface ISqlJetMemoryPointer

putInt

public final void putInt(int pointer,
                         int value)

Description copied from interface: ISqlJetMemoryPointer

Write int at pointer.

Specified by:

putInt in interface ISqlJetMemoryPointer

putIntUnsigned

public final void putIntUnsigned(int pointer,
                                 long value)

Description copied from interface: ISqlJetMemoryPointer

Write unsigned int at pointer.

Specified by:

putIntUnsigned in interface ISqlJetMemoryPointer

putLong

public final void putLong(int pointer,
                          long value)

Description copied from interface: ISqlJetMemoryPointer

Write long at pointer.

Specified by:

putLong in interface ISqlJetMemoryPointer

putShort

public final void putShort(int pointer,
                           short value)

Description copied from interface: ISqlJetMemoryPointer

Write short at pointer.

Specified by:

putShort in interface ISqlJetMemoryPointer

putShortUnsigned

public final void putShortUnsigned(int pointer,
                                   int value)

Description copied from interface: ISqlJetMemoryPointer

Write unsigned short at pointer.

Specified by:

putShortUnsigned in interface ISqlJetMemoryPointer

readFromFile

public final int readFromFile(int pointer,
                              java.io.RandomAccessFile file,
                              long position,
                              int count)
                       throws java.io.IOException

Description copied from interface: ISqlJetMemoryPointer

Read from file into memory chunk at pointer. Method isn't synchronized on file.

Specified by:

readFromFile in interface ISqlJetMemoryPointer

Returns:

Throws:

java.io.IOException

writeToFile

public final int writeToFile(int pointer,
                             java.io.RandomAccessFile file,
                             long position,
                             int count)
                      throws java.io.IOException

Description copied from interface: ISqlJetMemoryPointer

Write from memory chunk at pointer to file. Method isn't synchronized on file.

Specified by:

writeToFile in interface ISqlJetMemoryPointer

Returns:

Throws:

java.io.IOException

remaining

public final int remaining()

Specified by:

remaining in interface ISqlJetMemoryPointer

Returns:

copyFrom

public final void copyFrom(int dstPos,
                           ISqlJetMemoryPointer src,
                           int srcPos,
                           int length)

Specified by:

copyFrom in interface ISqlJetMemoryPointer

copyFrom

public final void copyFrom(ISqlJetMemoryPointer src,
                           int srcPos,
                           int length)

Specified by:

copyFrom in interface ISqlJetMemoryPointer

copyFrom

public final void copyFrom(ISqlJetMemoryPointer src,
                           int length)

Specified by:

copyFrom in interface ISqlJetMemoryPointer

fill

public final void fill(int count,
                       byte value)

Specified by:

fill in interface ISqlJetMemoryPointer

fill

public final void fill(int from,
                       int count,
                       byte value)

Specified by:

fill in interface ISqlJetMemoryPointer

getBytes

public final void getBytes(byte[] bytes)

Specified by:

getBytes in interface ISqlJetMemoryPointer

getBytes

public final void getBytes(int pointer,
                           byte[] bytes)

Specified by:

getBytes in interface ISqlJetMemoryPointer

getBytes

public final void getBytes(int pointer,
                           byte[] bytes,
                           int count)

Specified by:

getBytes in interface ISqlJetMemoryPointer

getBytes

public final void getBytes(int pointer,
                           byte[] bytes,
                           int to,
                           int count)

Specified by:

getBytes in interface ISqlJetMemoryPointer

putBytes

public final void putBytes(byte[] bytes)

Specified by:

putBytes in interface ISqlJetMemoryPointer

putBytes

public final void putBytes(int pointer,
                           byte[] bytes)

Specified by:

putBytes in interface ISqlJetMemoryPointer

putBytes

public final void putBytes(int pointer,
                           byte[] bytes,
                           int count)

Specified by:

putBytes in interface ISqlJetMemoryPointer

putBytes

public final void putBytes(int pointer,
                           byte[] bytes,
                           int to,
                           int count)

Specified by:

putBytes in interface ISqlJetMemoryPointer

compareTo

public final int compareTo(ISqlJetMemoryPointer ptr)

Specified by:

compareTo in interface ISqlJetMemoryPointer

Returns:

limit

public final void limit(int n)

Specified by:

limit in interface ISqlJetMemoryPointer

getLimit

public final int getLimit()

Specified by:

getLimit in interface ISqlJetMemoryPointer

getIdentic

public final ISqlJetMemoryPointer getIdentic()

Specified by:

getIdentic in interface ISqlJetMemoryPointer

getMoved

public ISqlJetMemoryPointer getMoved(int count)

Specified by:

getMoved in interface ISqlJetMemoryPointer