Class JdbcLob

java.lang.Object

org.h2.message.TraceObject

org.h2.jdbc.JdbcLob

Direct Known Subclasses:

JdbcBlob, JdbcClob, JdbcSQLXML

public abstract class JdbcLob
extends TraceObject

Represents a large object value.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
(package private) static final class	JdbcLob.LobPipedOutputStream
static enum	JdbcLob.State	State of the object.

Field Summary

Fields

Modifier and Type	Field	Description
(package private) final JdbcConnection	conn	JDBC connection.
(package private) JdbcLob.State	state	State.
(package private) Value	value	Value.

Fields inherited from class TraceObject

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

Constructor Summary

Constructors

Constructor	Description
JdbcLob(JdbcConnection conn, Value value, JdbcLob.State state, int type, int id)

Method Summary

Modifier and Type	Method	Description
(package private) void	checkClosed()	Check that connection and LOB is not closed, otherwise throws exception with error code ErrorCode.OBJECT_CLOSED.
(package private) void	checkEditable()	Check the state of the LOB and throws the exception when check failed (set is supported only for a new LOB).
(package private) void	checkReadable()	Check the state of the LOB and throws the exception when check failed (the LOB must be set completely before read).
(package private) void	completeWrite(Value blob)	Change the state LOB state (LOB value is set completely and available to read).
void	free()	Release all resources of this object.
(package private) InputStream	getBinaryStream()	Returns the input stream.
(package private) Reader	getCharacterStream()	Returns the reader.
(package private) Writer	setCharacterStreamImpl()	Returns the writer.
(package private) JdbcLob.LobPipedOutputStream	setClobOutputStreamImpl()	Returns the writer stream.
String	toString()	INTERNAL

Methods inherited from class TraceObject

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

Methods inherited from class Object

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

Field Details

conn

final JdbcConnection conn

JDBC connection.

value

Value value

Value.

state

JdbcLob.State state

State.

Constructor Details

JdbcLob

JdbcLob(JdbcConnection conn,
 Value value,
 JdbcLob.State state,
 int type,
 int id)

Method Details

checkClosed

void checkClosed()

Check that connection and LOB is not closed, otherwise throws exception with error code ErrorCode.OBJECT_CLOSED.

checkEditable

void checkEditable()

Check the state of the LOB and throws the exception when check failed (set is supported only for a new LOB).

checkReadable

void checkReadable()
            throws SQLException,
IOException

Check the state of the LOB and throws the exception when check failed (the LOB must be set completely before read).

Throws:

SQLException - on SQL exception

IOException - on I/O exception

completeWrite

void completeWrite(Value blob)

Change the state LOB state (LOB value is set completely and available to read).

Parameters:

blob - LOB value.

free

public void free()

Release all resources of this object.

getBinaryStream

InputStream getBinaryStream()
                     throws SQLException

Returns the input stream.

Returns:

the input stream

Throws:

SQLException - on failure

getCharacterStream

Reader getCharacterStream()
                   throws SQLException

Returns the reader.

Returns:

the reader

Throws:

SQLException - on failure

setCharacterStreamImpl

Writer setCharacterStreamImpl()
                       throws IOException

Returns the writer.

Returns:

Writer.

Throws:

IOException - If an I/O error occurs.

setClobOutputStreamImpl

JdbcLob.LobPipedOutputStream setClobOutputStreamImpl()
                                              throws IOException

Returns the writer stream.

Returns:

Output stream..

Throws:

IOException - If an I/O error occurs.

toString

public String toString()

INTERNAL

Overrides:

toString in class Object