Package overit.geocall.sql

Interface DBObjectMap

All Known Implementing Classes:

DBDrivenLoader, DBObject, StandardDBObjectMap

public interface DBObjectMap

Interface that realizes a general map between Java objects in memory and SQL objects.
In particular it implements writing and reading (with transformations) of objects to / from the database

Method Summary

Modifier and Type	Method	Description
Object	loadInstance(ResultSet rs, int field)	Must implements the transformations and the reading of a field in a Java object, starting from a ResultSet, the position and the information of the ResultSetMetaData
default List<Object>	loadInstance(ResultSet rs, int field, List<DataAttribute> dataAttributes, Company company)	Returns a List<Object> about the values of configured EDM extended attributes contained in the provided ResultSet.
default Object	loadInstance(ResultSet rs, int field, DataAttribute dataAttribute, Company company)	Returns a Object about the value of configured EDM extended attribute contained in the provided ResultSet.
void	saveInstance(PreparedStatement ps, int field, Object o)	Must implements the transformations and the writing of a Java object in a PreparedStatement, starting from the instance type of the java object

Method Details

loadInstance

Object loadInstance(ResultSet rs,
 int field)
             throws SQLException

Must implements the transformations and the reading of a field in a Java object, starting from a ResultSet, the position and the information of the ResultSetMetaData

Parameters:

rs - The ResultSet from which retrieve the ResultSetMetaData and the values used to create the Java object

field - Number of the field to read from the ResultSet

Returns:

The created object instance

Throws:

SQLException - The operation of reading from the database can raise an SQLException

loadInstance

default List<Object> loadInstance(ResultSet rs,
 int field,
 List<DataAttribute> dataAttributes,
 Company company)
                           throws SQLException

Returns a List<Object> about the values of configured EDM extended attributes contained in the provided ResultSet.

Parameters:

rs - ResultSet from which retrieve the values of the configured EDM extended attributes.

field - Number of the field to read from the ResultSet.

dataAttributes - List<DataAttribute> about the configured extended data attributes.

company - Company currently in use.

Returns:

a List<Object> about the values of configured EDM extended attributes contained in the provided ResultSet.

Throws:

SQLException - The operation of reading from the database can raise an SQLException

loadInstance

default Object loadInstance(ResultSet rs,
 int field,
 DataAttribute dataAttribute,
 Company company)
                     throws SQLException

Returns a Object about the value of configured EDM extended attribute contained in the provided ResultSet.

Parameters:

rs - ResultSet from which retrieve the value of the configured EDM extended attribute.

field - Number of the field to read from the ResultSet.

dataAttribute - DataAttribute about the configured extended data attribute.

company - Company currently in use.

Returns:

a Object about the value of configured EDM extended attribute contained in the provided ResultSet.

Throws:

SQLException - The operation of reading from the database can raise an SQLException

saveInstance

void saveInstance(PreparedStatement ps,
 int field,
 Object o)
           throws SQLException

Must implements the transformations and the writing of a Java object in a PreparedStatement, starting from the instance type of the java object

Parameters:

ps - The PreparedStatement in which we must set the object

field - The position of the parameter in the PreparedStatement

o - The Java object

Throws:

SQLException - The database communication can raise an SQLException