com.antelmann.sql
Class UnionSqlStore<T extends DBEntry>

java.lang.Object
  com.antelmann.db.WrappedDBClassStore<T>
      com.antelmann.sql.WrappedDBClassStoreMapping<T>
          com.antelmann.sql.UnionSqlStore<T>

All Implemented Interfaces:

DBClassStore<T>, ProcessedFilterOption<T>, TransactionRequired, MappingInfo, ProcessorHook<T,DatabaseException>, Wrapped<DBClassStore<T>>

public class UnionSqlStore<T extends DBEntry>
extends WrappedDBClassStoreMapping<T>

implements a read-only store that is based on a union-sql-query derived from the common columns of a number of given stores. All given stores must provide the MappingInfo interface via the database. Furthermore, it must be certain that the IDs are unique across all given stores. The first given store serves as the basis for the mapping info in regards to display values and topics.

Since:

08.11.2011, 18:35:01

Author:

Holger Antelmann

Nested Class Summary

Nested classes/interfaces inherited from interface com.antelmann.db.DBClassStore

DBClassStore.DBMethod

Field Summary

Fields inherited from class com.antelmann.sql.WrappedDBClassStoreMapping

mi

Fields inherited from class com.antelmann.db.WrappedDBClassStore

store

Constructor Summary

UnionSqlStore(Class<T> type, Collection<Object> topics, DBClassStore<?>... stores)

UnionSqlStore(Class<T> type, DBClassStore<?>... stores)

Method Summary

Methods inherited from class com.antelmann.sql.WrappedDBClassStoreMapping

addColumnsForTopic, addTopicMapping, getColumnDisplayMapping, getColumnNames, getColumnsForTopic, getColumnSize, getDisplayColumn, getDisplayNameForColumn, getIDColumn, getMappingForTopic, getSQLTypeforColumn, getSupportedTopicColumns, getTableName, getTableQuery, removeColumnTopics, removeTopicMapping, setColumnsForTopic

Methods inherited from class com.antelmann.db.WrappedDBClassStore

add, checkReadAccess, checkWriteAccess, containsID, deleteEntries, deleteEntriesIndividually, deleteEntry, exposesInterfaces, fetch, fetchStubs, generateNewID, getAccessFilter, getAccessStubFilter, getDatabase, getEntry, getEntryClass, getFetchProcessor, getPreStoreHandler, getStoreHandler, getStub, getStubProcessor, insert, insertAsNew, isApplyFilterProcessingRecursively, isDeleteEntriesIndividually, isEnsureTransactionsOnFetch, isProcessBeforeFiltering, queryForInterface, remove, setAccessFilter, setAccessStubFilter, setApplyFilterProcessingRecursively, setDeleteEntriesIndividually, setEnsureTransactionsOnFetch, setExposesInterfaces, setFetchProcessor, setPreStoreHandler, setProcessBeforeFiltering, setProcessBeforeFiltering, setStoreHandler, setStubProcessor, size, unwrap, update, wrapFilterForProcessing

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

UnionSqlStore

public UnionSqlStore(Class<T> type,
                     DBClassStore<?>... stores)
              throws DatabaseException,
                     IllegalArgumentException

Throws:

DatabaseException

IllegalArgumentException

UnionSqlStore

public UnionSqlStore(Class<T> type,
                     Collection<Object> topics,
                     DBClassStore<?>... stores)
              throws DatabaseException,
                     IllegalArgumentException

Parameters:

type - the DBEntry type of this store; this must be a super class of all given stores

topics - if topics is non-null, it must contain at least some topics that are defined in all given stores, as these are the only columns that will be available in the resulting mapper

stores - a list of existing DBClassStores that are to be merged into this one; the first store is the basis for the MappingInfo of this store and all stores' DBEntry-classes must inherit from the given type

Throws:

DatabaseException

IllegalArgumentException