org.firebirdsql.jdbc.field

Class FBCachedClob

java.lang.Object

org.firebirdsql.jdbc.field.FBCachedClob

All Implemented Interfaces:

java.sql.Clob, java.sql.NClob

public class FBCachedClob
extends java.lang.Object
implements java.sql.Clob, java.sql.NClob

Clob implementation that is cached client-side.

This implementation is used for disconnected result sets (ie scrollable and hold cursors over commit).

This class also implements NClob so it can be used with the set/get/updateNClob methods transparently. It technically does not conform to the JDBC requirements for NClob.

Constructor Summary

Constructors

Constructor and Description
FBCachedClob(FBCachedBlob blob, java.lang.String javaEncoding)

Method Summary

Modifier and Type	Method and Description
void	free()
java.io.InputStream	getAsciiStream()
java.io.Reader	getCharacterStream()
java.io.Reader	getCharacterStream(long pos, long length)
java.lang.String	getSubString(long pos, int length)
long	length()
long	position(java.sql.Clob searchstr, long start)
long	position(java.lang.String searchstr, long start)
java.io.OutputStream	setAsciiStream(long pos)
java.io.Writer	setCharacterStream(long pos)
int	setString(long pos, java.lang.String str)
int	setString(long pos, java.lang.String str, int offset, int len)
void	truncate(long len)

Methods inherited from class java.lang.Object

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

Constructor Detail

FBCachedClob

public FBCachedClob(FBCachedBlob blob,
                    java.lang.String javaEncoding)

Method Detail

free

public void free()
          throws java.sql.SQLException

Specified by:

free in interface java.sql.Clob

Throws:

java.sql.SQLException

getAsciiStream

public java.io.InputStream getAsciiStream()
                                   throws java.sql.SQLException

Specified by:

getAsciiStream in interface java.sql.Clob

Throws:

java.sql.SQLException

getCharacterStream

public java.io.Reader getCharacterStream()
                                  throws java.sql.SQLException

Specified by:

getCharacterStream in interface java.sql.Clob

Throws:

java.sql.SQLException

getCharacterStream

public java.io.Reader getCharacterStream(long pos,
                                         long length)
                                  throws java.sql.SQLException

Specified by:

getCharacterStream in interface java.sql.Clob

Throws:

java.sql.SQLException

getSubString

public java.lang.String getSubString(long pos,
                                     int length)
                              throws java.sql.SQLException

Specified by:

getSubString in interface java.sql.Clob

Throws:

java.sql.SQLException

length

public long length()
            throws java.sql.SQLException

Specified by:

length in interface java.sql.Clob

Throws:

java.sql.SQLException

position

public long position(java.lang.String searchstr,
                     long start)
              throws java.sql.SQLException

Specified by:

position in interface java.sql.Clob

Throws:

java.sql.SQLException

position

public long position(java.sql.Clob searchstr,
                     long start)
              throws java.sql.SQLException

Specified by:

position in interface java.sql.Clob

Throws:

java.sql.SQLException

setAsciiStream

public java.io.OutputStream setAsciiStream(long pos)
                                    throws java.sql.SQLException

Specified by:

setAsciiStream in interface java.sql.Clob

Throws:

java.sql.SQLException

setCharacterStream

public java.io.Writer setCharacterStream(long pos)
                                  throws java.sql.SQLException

Specified by:

setCharacterStream in interface java.sql.Clob

Throws:

java.sql.SQLException

setString

public int setString(long pos,
                     java.lang.String str)
              throws java.sql.SQLException

Specified by:

setString in interface java.sql.Clob

Throws:

java.sql.SQLException

setString

public int setString(long pos,
                     java.lang.String str,
                     int offset,
                     int len)
              throws java.sql.SQLException

Specified by:

setString in interface java.sql.Clob

Throws:

java.sql.SQLException

truncate

public void truncate(long len)
              throws java.sql.SQLException

Specified by:

truncate in interface java.sql.Clob

Throws:

java.sql.SQLException