Example usage for org.hibernate.persister.collection AbstractCollectionPersister getIndexColumnNames

Introduction

In this page you can find the example usage for org.hibernate.persister.collection AbstractCollectionPersister getIndexColumnNames.

Prototype

@Override
    public String[] getIndexColumnNames() 

Source Link

Usage

From source file:org.eclipse.emf.teneo.hibernate.LazyCollectionUtils.java

License:Open Source License

/**
 * Returns an iterator which loads the underlying data from the collection
 * in pages (controlled by the pageSize parameter). Note if the collection
 * is not lazy loadable then a normal iterator is returned. This is checked
 * using the {@link #isLazyLoadableCollection(Collection)} method.
 * /*from ww w .  j a v  a  2  s . c  om*/
 * Note: this method can only handle collections of EObjects so not collections
 * of primitive typed objects. Paged iteration of these collections is not 
 * supported by Hibernate.
 * 
 * @param coll
 *            the collection to iterate lazily over
 * @param pageSize
 *            the pageSize, this determines the pagesize of the page of data
 *            read each time from the database
 * @return a paging iterator or if not a lazy loadable collection a normal
 *         iterator
 * @see PagingIterator
 */
public static <E> Iterator<E> getPagedLoadingIterator(Collection<E> coll, int pageSize) {
    if (!isLazyLoadableCollection(coll)) {
        return coll.iterator();
    }
    final PersistableDelegateList<?> persistableList = (PersistableDelegateList<?>) coll;
    final AbstractPersistentCollection persistentCollection = (AbstractPersistentCollection) persistableList
            .getDelegate();

    final SessionImplementor session = persistentCollection.getSession();
    final PagingIterator<E> pagingIterator = new PagingIterator<E>();
    pagingIterator.setCollection(persistentCollection);
    pagingIterator.setPageSize(pageSize);
    pagingIterator.setSession((Session) session);

    final CollectionEntry entry = session.getPersistenceContext().getCollectionEntry(persistentCollection);
    final AbstractCollectionPersister persister = (AbstractCollectionPersister) entry.getLoadedPersister();
    pagingIterator.setEavCollection(coll instanceof EAVDelegatingList);
    pagingIterator.setIndexColumnNames(persister.getIndexColumnNames());
    return pagingIterator;
}

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From source file:org.riotfamily.core.dao.hibernate.HqlIndexedListDao.java

License:Apache License

@Override
protected void initDao() throws Exception {
    super.initDao();
    AbstractCollectionPersister persister = (AbstractCollectionPersister) getSessionFactory()
            .getCollectionMetadata(getRole());

    indexColumn = persister.getIndexColumnNames()[0];
}

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