com.antelmann.db
Interface CategoryManager

All Superinterfaces:

TransactionRequired

All Known Implementing Classes:

CategoryStore

public interface CategoryManager
extends TransactionRequired

specifies the functionality commonly used to deal with categories and implemented by a DBClassStore.

Since:

01.08.2011, 05:24:02

Author:

Holger Antelmann

See Also:

Database.queryStoreForInterface(Class, Class), CategoryStore

Method Summary

Iterable<Object>	getAllSubCategoryIDs(DBReference categoryRef)
<S extends DBEntry> Filter<S>	getCategoryUsageFilterFor(Class<S> type, Object categoryId)
Collection<DBClassStore<?>>	getCategoryUserStores()
List<? extends Category<?>>	getSubCategories(DBReference categoryRef)
List<? extends Category<?>>	getTopCategories()
boolean	isLeaf(DBReference categoryRef)
boolean	isUsed(DBReference categoryRef)
<S extends DBEntry> PatternExtractor<Object,Filter<S>>	registerCategoryUse(DBClassStore<S> store, PatternExtractor<Object,Filter<S>> filterCreator)

Method Detail

getTopCategories

List<? extends Category<?>> getTopCategories()
                                             throws DatabaseException

Throws:

DatabaseException

getSubCategories

List<? extends Category<?>> getSubCategories(DBReference categoryRef)
                                             throws DatabaseException,
                                                    IllegalArgumentException

Throws:

DatabaseException

IllegalArgumentException

getAllSubCategoryIDs

Iterable<Object> getAllSubCategoryIDs(DBReference categoryRef)
                                      throws DatabaseException,
                                             IllegalArgumentException

Throws:

DatabaseException

IllegalArgumentException

isLeaf

boolean isLeaf(DBReference categoryRef)
               throws DatabaseException,
                      IllegalArgumentException

Throws:

DatabaseException

IllegalArgumentException

isUsed

boolean isUsed(DBReference categoryRef)
               throws DatabaseException,
                      IllegalArgumentException

Throws:

DatabaseException

IllegalArgumentException

registerCategoryUse

<S extends DBEntry> PatternExtractor<Object,Filter<S>> registerCategoryUse(DBClassStore<S> store,
                                                                           PatternExtractor<Object,Filter<S>> filterCreator)

Parameters:

filterCreator - creates a filter based on an object id

See Also:

CategoryStore.registerCategoryUser(DBClassStore, String, Class)

getCategoryUserStores

Collection<DBClassStore<?>> getCategoryUserStores()

getCategoryUsageFilterFor

<S extends DBEntry> Filter<S> getCategoryUsageFilterFor(Class<S> type,
                                                        Object categoryId)