Interface Struct
- All Known Implementing Classes:
SerialStruct
public interface Struct
The standard mapping in the Java programming language for an SQL structured type. A Struct
object contains a value for each attribute of the SQL structured type that it represents. By default, an instance ofStruct
is valid as long as the application has a reference to it.
All methods on the Struct
interface must be fully implemented if the JDBC driver supports the data type.
- Since:
- 1.2
Method Summary
Modifier and Type | Method | Description |
---|---|---|
Object[] | getAttributes() | Produces the ordered values of the attributes of the SQL structured type that this |
Object[] | getAttributes(Map<String,Class<?>> map) | Produces the ordered values of the attributes of the SQL structured type that this |
String | getSQLTypeName() | Retrieves the SQL type name of the SQL structured type that this |
Method Detail
getSQLTypeName
String getSQLTypeName() throws SQLException
Retrieves the SQL type name of the SQL structured type that this Struct
object represents.
- Returns:
- the fully-qualified type name of the SQL structured type for which this
Struct
object is the generic representation - Throws:
-
SQLException
- if a database access error occurs -
SQLFeatureNotSupportedException
- if the JDBC driver does not support this method - Since:
- 1.2
getAttributes
Object[] getAttributes() throws SQLException
Produces the ordered values of the attributes of the SQL structured type that this Struct
object represents. As individual attributes are processed, this method uses the type map associated with the connection for customizations of the type mappings. If there is no entry in the connection's type map that matches the structured type that an attribute represents, the driver uses the standard mapping.
Conceptually, this method calls the method getObject
on each attribute of the structured type and returns a Java array containing the result.
- Returns:
- an array containing the ordered attribute values
- Throws:
-
SQLException
- if a database access error occurs -
SQLFeatureNotSupportedException
- if the JDBC driver does not support this method - Since:
- 1.2
getAttributes
Object[] getAttributes(Map<String,Class<?>> map) throws SQLException
Produces the ordered values of the attributes of the SQL structured type that this Struct
object represents. As individual attributes are processed, this method uses the given type map for customizations of the type mappings. If there is no entry in the given type map that matches the structured type that an attribute represents, the driver uses the standard mapping. This method never uses the type map associated with the connection.
Conceptually, this method calls the method getObject
on each attribute of the structured type and returns a Java array containing the result.
- Parameters:
-
map
- a mapping of SQL type names to Java classes - Returns:
- an array containing the ordered attribute values
- Throws:
-
SQLException
- if a database access error occurs -
SQLFeatureNotSupportedException
- if the JDBC driver does not support this method - Since:
- 1.2