com.trendmicro.grid.acl.ds.jpa
Class AbstractFetcher<K,T,R extends com.trendmicro.grid.acl.ds.Repository>

java.lang.Object
  com.trendmicro.grid.acl.ds.jpa.AbstractFetcher<K,T,R>

All Implemented Interfaces:

com.trendmicro.grid.acl.ds.SelectorAware

Direct Known Subclasses:

JpaFileDetailsFetcher, JpaSourceDomainFetcher, JpaSourceFetcher

public abstract class AbstractFetcher<K,T,R extends com.trendmicro.grid.acl.ds.Repository>
extends Object
implements com.trendmicro.grid.acl.ds.SelectorAware

Is a base to classes that implement fetching inside a JPA context using another repository through the repository selector.

Version:

1.0

Author:

juergen_kellerer, 2010-06-01

Field Summary

protected String	incompatibleRepositoryKey
protected com.trendmicro.grid.acl.ds.RepositorySelector<R>	selector

Constructor Summary

protected

AbstractFetcher(Class<R> repositoryClass)

Method Summary

T	fetch(K key)
protected abstract Object	fetch(R repository, K key)
protected abstract R	getFallbackRepository()
void	refreshSelectors(com.trendmicro.grid.acl.ds.RepositorySelectorsRepository selectorsRepository)

Methods inherited from class java.lang.Object

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

Field Detail

incompatibleRepositoryKey

protected String incompatibleRepositoryKey

selector

protected com.trendmicro.grid.acl.ds.RepositorySelector<R extends com.trendmicro.grid.acl.ds.Repository> selector

Constructor Detail

AbstractFetcher

protected AbstractFetcher(Class<R> repositoryClass)

Method Detail

getFallbackRepository

protected abstract R getFallbackRepository()

refreshSelectors

public void refreshSelectors(com.trendmicro.grid.acl.ds.RepositorySelectorsRepository selectorsRepository)

Specified by:

refreshSelectors in interface com.trendmicro.grid.acl.ds.SelectorAware

fetch

public T fetch(K key)

fetch

protected abstract Object fetch(R repository,
                                K key)