Package org.apache.activemq.artemis.jdbc.store.file

Class PostgresLargeObjectManager

java.lang.Object

org.apache.activemq.artemis.jdbc.store.file.PostgresLargeObjectManager

public class PostgresLargeObjectManager
extends Object

Helper class for when the postresql driver is not directly availalbe.

Field Summary

Fields

Modifier and Type	Field	Description
static int	READ	This mode indicates we want to read an object
static int	READWRITE	This mode is the default.
static int	WRITE	This mode indicates we want to write to an object

Constructor Summary

Constructors

Constructor	Description
PostgresLargeObjectManager()

Method Summary

Modifier and Type	Method	Description
void	close(Object largeObject)
Long	createLO(Connection connection)
Object	open(Connection connection, long oid, int mode)
byte[]	read(Object largeObject, int length)
void	seek(Object largeObject, int position)
int	size(Object largeObject)
void	truncate(Object largeObject, int position)
Connection	unwrap(Connection connection)
void	write(Object largeObject, byte[] data)

Methods inherited from class java.lang.Object

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

Field Detail

WRITE

public static final int WRITE

This mode indicates we want to write to an object

See Also:

Constant Field Values

READ

public static final int READ

This mode indicates we want to read an object

See Also:

Constant Field Values

READWRITE

public static final int READWRITE

This mode is the default. It indicates we want read and write access to a large object

See Also:

Constant Field Values

Constructor Detail

PostgresLargeObjectManager

public PostgresLargeObjectManager()

Method Detail

createLO

public final Long createLO(Connection connection)
                    throws SQLException

Throws:

SQLException

open

public Object open(Connection connection,
                   long oid,
                   int mode)
            throws SQLException

Throws:

SQLException

size

public int size(Object largeObject)
         throws SQLException

Throws:

SQLException

close

public void close(Object largeObject)
           throws SQLException

Throws:

SQLException

read

public byte[] read(Object largeObject,
                   int length)
            throws SQLException

Throws:

SQLException

write

public void write(Object largeObject,
                  byte[] data)
           throws SQLException

Throws:

SQLException

seek

public void seek(Object largeObject,
                 int position)
          throws SQLException

Throws:

SQLException

truncate

public void truncate(Object largeObject,
                     int position)
              throws SQLException

Throws:

SQLException

unwrap

public final Connection unwrap(Connection connection)
                        throws SQLException

Throws:

SQLException