Class SqlLobValue

java.lang.Object

org.springframework.jdbc.core.support.SqlLobValue

All Implemented Interfaces:

DisposableSqlTypeValue, SqlTypeValue

@Deprecated(since="6.2")
public class SqlLobValue
extends Object
implements DisposableSqlTypeValue

Deprecated.

as of 6.2, in favor of SqlBinaryValue and SqlCharacterValue

Object to represent an SQL BLOB/CLOB value parameter. BLOBs can either be an InputStream or a byte array. CLOBs can be in the form of a Reader, InputStream, or String. Each CLOB/BLOB value will be stored together with its length. The type is based on which constructor is used. Instances of this class are stateful and immutable: use them and discard them.

NOTE: As of 6.1.4, this class is effectively superseded by SqlBinaryValue and SqlCharacterValue which are capable of modern BLOB/CLOB handling while also handling LONGVARBINARY/LONGVARCHAR. The only reason to keep using this class is a custom LobHandler.

This class holds a reference to a LobCreator that must be closed after the update has completed. This is done via a call to the cleanup() method. All handling of the LobCreator is done by the framework classes that use it - no need to set or close the LobCreator for end users of this class.

A usage example:

JdbcTemplate jdbcTemplate = new JdbcTemplate(dataSource);  // reusable object
LobHandler lobHandler = new DefaultLobHandler();  // reusable object

jdbcTemplate.update(
    "INSERT INTO imagedb (image_name, content, description) VALUES (?, ?, ?)",
    new Object[] {
      name,
      new SqlLobValue(contentStream, contentLength, lobHandler),
      new SqlLobValue(description, lobHandler)
    },
    new int[] {Types.VARCHAR, Types.BLOB, Types.CLOB});

Since:

1.1

Author:

Thomas Risberg, Juergen Hoeller

See Also:

• LobHandler
• LobCreator
• JdbcTemplate.update(String, Object[], int[])
• SqlUpdate.update(Object[])
• storedProcedure.execute(java.util.Map)

Field Summary

Fields inherited from interface SqlTypeValue

TYPE_UNKNOWN

Constructor Summary

Constructors

Constructor	Description
SqlLobValue(byte @Nullable [] bytes)	Deprecated. Create a new BLOB value with the given byte array, using a DefaultLobHandler.
SqlLobValue(byte @Nullable [] bytes, LobHandler lobHandler)	Deprecated. Create a new BLOB value with the given byte array.
SqlLobValue(InputStream stream, int length)	Deprecated. Create a new BLOB/CLOB value with the given stream, using a DefaultLobHandler.
SqlLobValue(InputStream stream, int length, LobHandler lobHandler)	Deprecated. Create a new BLOB/CLOB value with the given stream.
SqlLobValue(Reader reader, int length)	Deprecated. Create a new CLOB value with the given character stream, using a DefaultLobHandler.
SqlLobValue(Reader reader, int length, LobHandler lobHandler)	Deprecated. Create a new CLOB value with the given character stream.
SqlLobValue(@Nullable String content)	Deprecated. Create a new CLOB value with the given content string, using a DefaultLobHandler.
SqlLobValue(@Nullable String content, LobHandler lobHandler)	Deprecated. Create a new CLOB value with the given content string.

Method Summary

Modifier and Type	Method	Description
void	cleanup()	Deprecated. Close the LobCreator.
void	setTypeValue(PreparedStatement ps, int paramIndex, int sqlType, @Nullable String typeName)	Deprecated. Set the specified content via the LobCreator.

Methods inherited from class Object

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

Constructor Details

SqlLobValue

public SqlLobValue(byte @Nullable [] bytes)

Deprecated.

Create a new BLOB value with the given byte array, using a DefaultLobHandler.

Parameters:

bytes - the byte array containing the BLOB value

See Also:

• DefaultLobHandler

SqlLobValue

public SqlLobValue(byte @Nullable [] bytes,
 LobHandler lobHandler)

Deprecated.

Create a new BLOB value with the given byte array.

Parameters:

bytes - the byte array containing the BLOB value

lobHandler - the LobHandler to be used

SqlLobValue

public SqlLobValue(@Nullable String content)

Deprecated.

Create a new CLOB value with the given content string, using a DefaultLobHandler.

Parameters:

content - the String containing the CLOB value

See Also:

• DefaultLobHandler

SqlLobValue

public SqlLobValue(@Nullable String content,
 LobHandler lobHandler)

Deprecated.

Create a new CLOB value with the given content string.

Parameters:

content - the String containing the CLOB value

lobHandler - the LobHandler to be used

SqlLobValue

public SqlLobValue(InputStream stream,
 int length)

Deprecated.

Create a new BLOB/CLOB value with the given stream, using a DefaultLobHandler.

Parameters:

stream - the stream containing the LOB value

length - the length of the LOB value

See Also:

• DefaultLobHandler

SqlLobValue

public SqlLobValue(InputStream stream,
 int length,
 LobHandler lobHandler)

Deprecated.

Create a new BLOB/CLOB value with the given stream.

Parameters:

stream - the stream containing the LOB value

length - the length of the LOB value

lobHandler - the LobHandler to be used

SqlLobValue

public SqlLobValue(Reader reader,
 int length)

Deprecated.

Create a new CLOB value with the given character stream, using a DefaultLobHandler.

Parameters:

reader - the character stream containing the CLOB value

length - the length of the CLOB value

See Also:

• DefaultLobHandler

SqlLobValue

public SqlLobValue(Reader reader,
 int length,
 LobHandler lobHandler)

Deprecated.

Create a new CLOB value with the given character stream.

Parameters:

reader - the character stream containing the CLOB value

length - the length of the CLOB value

lobHandler - the LobHandler to be used

Method Details

setTypeValue

public void setTypeValue(PreparedStatement ps,
 int paramIndex,
 int sqlType,
 @Nullable String typeName)
                  throws SQLException

Deprecated.

Set the specified content via the LobCreator.

Specified by:

setTypeValue in interface SqlTypeValue

Parameters:

ps - the PreparedStatement to work on

paramIndex - the index of the parameter for which we need to set the value

sqlType - the SQL type of the parameter we are setting

typeName - the type name of the parameter (optional)

Throws:

SQLException - if an SQLException is encountered while setting parameter values

See Also:

• Types
• PreparedStatement.setObject(int, Object, int)

cleanup

public void cleanup()

Deprecated.

Close the LobCreator.

Specified by:

cleanup in interface DisposableSqlTypeValue

See Also:

• cleanup()
• SqlValue.cleanup()