com.gisgraphy.service
Interface GenericManager<T,PK extends Serializable>

Type Parameters:
T - a type variable
PK - the primary key for that type
All Known Implementing Classes:
GenericManagerImpl

public interface GenericManager<T,PK extends Serializable>

Generic Manager that talks to GenericDao to CRUD POJOs.

Extend this interface if you want typesafe (no casting necessary) managers for your domain objects.

Author:
Matt Raible

Method Summary
 boolean exists(PK id)
          Checks for existence of an object of type T using the id arg.
 T get(PK id)
          Generic method to get an object based on class and identifier.
 List<T> getAll()
          Generic method used to get all objects of a particular type.
 void remove(PK id)
          Generic method to delete an object based on class and id
 T save(T object)
          Generic method to save an object - handles both update and insert.
 

Method Detail

getAll

List<T> getAll()
Generic method used to get all objects of a particular type. This is the same as lookup up all rows in a table.

Returns:
List of populated objects

get

T get(PK id)
Generic method to get an object based on class and identifier. An ObjectRetrievalFailureException Runtime Exception is thrown if nothing is found.

Parameters:
id - the identifier (primary key) of the object to get
Returns:
a populated object
See Also:
ObjectRetrievalFailureException

exists

boolean exists(PK id)
Checks for existence of an object of type T using the id arg.

Parameters:
id - the identifier (primary key) of the object to get
Returns:
- true if it exists, false if it doesn't

save

T save(T object)
Generic method to save an object - handles both update and insert.

Parameters:
object - the object to save
Returns:
the updated object

remove

void remove(PK id)
Generic method to delete an object based on class and id

Parameters:
id - the identifier (primary key) of the object to remove


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