com.mysema.query

Interface SimpleProjectable<T>

All Known Implementing Classes:

AbstractLuceneQuery, LuceneQuery, MongodbQuery, MorphiaQuery, SearchQuery, SimpleProjectableAdapter, TypedQuery

public interface SimpleProjectable<T>

SimpleProjectable defines a simpler projection interface than Projectable.

Author:

tiwe

See Also:

Projectable

Method Summary

Methods

Modifier and Type	Method and Description
long	count() Get the count of matched elements
boolean	exists()
com.mysema.commons.lang.CloseableIterator<T>	iterate() Get the projection as a typed closeable Iterator
List<T>	list() Get the projection as a typed List
SearchResults<T>	listResults() Get the projection in SearchResults form
boolean	notExists()
T	singleResult() Get the projection as a single result or null if no result is found
T	uniqueResult() Get the projection as a unique result or null if no result is found

Method Detail

exists

boolean exists()

Returns:

true, if rows matching the given criteria exist, otherwise false

notExists

boolean notExists()

Returns:

true, if no rows matching the given criteria exist, otherwise false

iterate

com.mysema.commons.lang.CloseableIterator<T> iterate()

Get the projection as a typed closeable Iterator

Returns:

list

List<T> list()

Get the projection as a typed List

Returns:

singleResult

@Nullable
T singleResult()

Get the projection as a single result or null if no result is found

for multiple results only the first one is returned

Returns:

uniqueResult

@Nullable
T uniqueResult()

Get the projection as a unique result or null if no result is found

Returns:

Throws:

NonUniqueResultException - if there is more than one matching result

listResults

SearchResults<T> listResults()

Get the projection in SearchResults form

Returns:

count

long count()

Get the count of matched elements

Returns: