Class SqlLobValue
- java.lang.Object
- org.springframework.jdbc.core.support.SqlLobValue
- All Implemented Interfaces:
DisposableSqlTypeValue
,SqlTypeValue
public class SqlLobValue extends Object implements DisposableSqlTypeValue
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. Objects of this class are immutable except for the LobCreator reference. Use them and discard them.This class holds a reference to a LocCreator that must be closed after the update has completed. This is done via a call to the closeLobCreator 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 org.springframework.jdbc.core.SqlTypeValue
TYPE_UNKNOWN
Constructor Summary
Constructors Constructor Description SqlLobValue(byte[] bytes)
Create a new BLOB value with the given byte array, using a DefaultLobHandler.SqlLobValue(byte[] bytes, LobHandler lobHandler)
Create a new BLOB value with the given byte array.SqlLobValue(InputStream stream, int length)
Create a new BLOB/CLOB value with the given stream, using a DefaultLobHandler.SqlLobValue(InputStream stream, int length, LobHandler lobHandler)
Create a new BLOB/CLOB value with the given stream.SqlLobValue(Reader reader, int length)
Create a new CLOB value with the given character stream, using a DefaultLobHandler.SqlLobValue(Reader reader, int length, LobHandler lobHandler)
Create a new CLOB value with the given character stream.SqlLobValue(String content)
Create a new CLOB value with the given content string, using a DefaultLobHandler.SqlLobValue(String content, LobHandler lobHandler)
Create a new CLOB value with the given content string.
Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description void
cleanup()
Close the LobCreator, if any.void
setTypeValue(PreparedStatement ps, int paramIndex, int sqlType, String typeName)
Set the specified content via the LobCreator.
Constructor Detail
SqlLobValue
public SqlLobValue(@Nullable byte[] bytes)
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(@Nullable byte[] bytes, LobHandler lobHandler)
Create a new BLOB value with the given byte array.- Parameters:
bytes
- the byte array containing the BLOB valuelobHandler
- the LobHandler to be used
SqlLobValue
public SqlLobValue(@Nullable String content)
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)
Create a new CLOB value with the given content string.- Parameters:
content
- the String containing the CLOB valuelobHandler
- the LobHandler to be used
SqlLobValue
public SqlLobValue(InputStream stream, int length)
Create a new BLOB/CLOB value with the given stream, using a DefaultLobHandler.- Parameters:
stream
- the stream containing the LOB valuelength
- the length of the LOB value- See Also:
DefaultLobHandler
SqlLobValue
public SqlLobValue(InputStream stream, int length, LobHandler lobHandler)
Create a new BLOB/CLOB value with the given stream.- Parameters:
stream
- the stream containing the LOB valuelength
- the length of the LOB valuelobHandler
- the LobHandler to be used
SqlLobValue
public SqlLobValue(Reader reader, int length)
Create a new CLOB value with the given character stream, using a DefaultLobHandler.- Parameters:
reader
- the character stream containing the CLOB valuelength
- the length of the CLOB value- See Also:
DefaultLobHandler
SqlLobValue
public SqlLobValue(Reader reader, int length, LobHandler lobHandler)
Create a new CLOB value with the given character stream.- Parameters:
reader
- the character stream containing the CLOB valuelength
- the length of the CLOB valuelobHandler
- the LobHandler to be used
Method Detail
setTypeValue
public void setTypeValue(PreparedStatement ps, int paramIndex, int sqlType, @Nullable String typeName) throws SQLException
Set the specified content via the LobCreator.- Specified by:
setTypeValue
in interfaceSqlTypeValue
- Parameters:
ps
- the PreparedStatement to work onparamIndex
- the index of the parameter for which we need to set the valuesqlType
- the SQL type of the parameter we are settingtypeName
- the type name of the parameter (optional)- Throws:
SQLException
- if an SQLException is encountered while setting parameter values- See Also:
Types
,PreparedStatement.setObject(int, java.lang.Object, int)
cleanup
public void cleanup()
Close the LobCreator, if any.- Specified by:
cleanup
in interfaceDisposableSqlTypeValue
- See Also:
cleanup()
,SqlValue.cleanup()