org.h2.jdbc
Class JdbcBlob

java.lang.Object
  org.h2.message.TraceObject
      org.h2.jdbc.JdbcBlob

All Implemented Interfaces:

java.sql.Blob

public class JdbcBlob
extends TraceObject
implements java.sql.Blob

Represents a BLOB value.

Field Summary

Fields inherited from class org.h2.message.TraceObject

ARRAY, BLOB, CALLABLE_STATEMENT, CLOB, CONNECTION, DATA_SOURCE, DATABASE_META_DATA, PARAMETER_META_DATA, PREPARED_STATEMENT, RESULT_SET, RESULT_SET_META_DATA, SAVEPOINT, SQL_EXCEPTION, STATEMENT, XA_DATA_SOURCE, XID

Constructor Summary

JdbcBlob(JdbcConnection conn, Value value, int id)
INTERNAL

Method Summary

void	free() Release all resources of this object.
java.io.InputStream	getBinaryStream() Returns the input stream.
java.io.InputStream	getBinaryStream(long pos, long length) [Not supported] Returns the input stream, starting from an offset.
byte[]	getBytes(long pos, int length) Returns some bytes of the object.
long	length() Returns the length.
long	position(java.sql.Blob blobPattern, long start) [Not supported] Searches a pattern and return the position.
long	position(byte[] pattern, long start) [Not supported] Searches a pattern and return the position.
java.io.OutputStream	setBinaryStream(long pos) [Not supported] Returns an output stream.
int	setBytes(long pos, byte[] bytes) [Not supported] Sets some bytes of the object.
int	setBytes(long pos, byte[] bytes, int offset, int len) [Not supported] Sets some bytes of the object.
java.lang.String	toString() INTERNAL
void	truncate(long len) [Not supported] Truncates the object.

Methods inherited from class org.h2.message.TraceObject

debugCode, debugCodeAssign, debugCodeCall, debugCodeCall, debugCodeCall, getNextId, getTrace, getTraceId, getTraceObjectName, isDebugEnabled, isInfoEnabled, logAndConvert, quote, quoteArray, quoteBigDecimal, quoteBytes, quoteDate, quoteIntArray, quoteMap, quoteTime, quoteTimestamp, setTrace, setTrace, toString, unsupported

Methods inherited from class java.lang.Object

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

Constructor Detail

JdbcBlob

public JdbcBlob(JdbcConnection conn,
                Value value,
                int id)

INTERNAL

Method Detail

length

public long length()
            throws java.sql.SQLException

Returns the length.

Specified by:

length in interface java.sql.Blob

Returns:

the length

Throws:

java.sql.SQLException

truncate

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

[Not supported] Truncates the object.

Specified by:

truncate in interface java.sql.Blob

Parameters:

len - the new length

Throws:

java.sql.SQLException

getBytes

public byte[] getBytes(long pos,
                       int length)
                throws java.sql.SQLException

Returns some bytes of the object.

Specified by:

getBytes in interface java.sql.Blob

Parameters:

pos - the index, the first byte is at position 1

length - the number of bytes

Returns:

the bytes, at most length bytes

Throws:

java.sql.SQLException

setBytes

public int setBytes(long pos,
                    byte[] bytes)
             throws java.sql.SQLException

[Not supported] Sets some bytes of the object.

Specified by:

setBytes in interface java.sql.Blob

Parameters:

pos - the write position

bytes - the bytes to set

Returns:

how many bytes have been written

Throws:

java.sql.SQLException

setBytes

public int setBytes(long pos,
                    byte[] bytes,
                    int offset,
                    int len)
             throws java.sql.SQLException

[Not supported] Sets some bytes of the object.

Specified by:

setBytes in interface java.sql.Blob

Parameters:

pos - the write position

bytes - the bytes to set

offset - the bytes offset

len - the number of bytes to write

Returns:

how many bytes have been written

Throws:

java.sql.SQLException

getBinaryStream

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

Returns the input stream.

Specified by:

getBinaryStream in interface java.sql.Blob

Returns:

the input stream

Throws:

java.sql.SQLException

setBinaryStream

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

[Not supported] Returns an output stream.

Specified by:

setBinaryStream in interface java.sql.Blob

Parameters:

pos - where to start writing

Returns:

the output stream to write into

Throws:

java.sql.SQLException

position

public long position(byte[] pattern,
                     long start)
              throws java.sql.SQLException

[Not supported] Searches a pattern and return the position.

Specified by:

position in interface java.sql.Blob

Parameters:

pattern - the pattern to search

start - the index, the first byte is at position 1

Returns:

the position (first byte is at position 1), or -1 for not found

Throws:

java.sql.SQLException

position

public long position(java.sql.Blob blobPattern,
                     long start)
              throws java.sql.SQLException

[Not supported] Searches a pattern and return the position.

Specified by:

position in interface java.sql.Blob

Parameters:

blobPattern - the pattern to search

start - the index, the first byte is at position 1

Returns:

the position (first byte is at position 1), or -1 for not found

Throws:

java.sql.SQLException

free

public void free()

Release all resources of this object.

getBinaryStream

public java.io.InputStream getBinaryStream(long pos,
                                           long length)
                                    throws java.sql.SQLException

[Not supported] Returns the input stream, starting from an offset.

Parameters:

pos - where to start reading

length - the number of bytes that will be read

Returns:

the input stream to read

Throws:

java.sql.SQLException

toString

public java.lang.String toString()

INTERNAL

Overrides:

toString in class java.lang.Object