Package step.core.collections.inmemory

Class InMemoryCollection<T>

java.lang.Object

step.core.collections.filesystem.AbstractCollection<T>

step.core.collections.inmemory.InMemoryCollection<T>

All Implemented Interfaces:

Collection<T>

public class InMemoryCollection<T>
extends AbstractCollection<T>
implements Collection<T>

Constructor Summary

Constructors

Constructor	Description
InMemoryCollection()
InMemoryCollection(Class<T> entityClass, Map<org.bson.types.ObjectId,T> entities)

Method Summary

Modifier and Type	Method	Description
long	count(Filter filter, Integer limit)	Counts the number of entities matching the provided filter
void	createOrUpdateCompoundIndex(String... fields)
void	createOrUpdateIndex(String field)
List<String>	distinct(String columnName, Filter filter)
void	drop()
long	estimatedCount()	Provide an estimation of the total number of entities of the collection
Stream<T>	find(Filter filter, SearchOrder order, Integer skip, Integer limit, int maxTime)
Stream<T>	findReduced(Filter filter, SearchOrder order, Integer skip, Integer limit, int maxTime, List<String> reduceFields)
void	remove(Filter filter)
void	rename(String newName)
void	save(Iterable<T> entities)
T	save(T entity)

Methods inherited from class step.core.collections.filesystem.AbstractCollection

getId, setId

Methods inherited from class java.lang.Object

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

Constructor Detail

InMemoryCollection

public InMemoryCollection()

InMemoryCollection

public InMemoryCollection(Class<T> entityClass,
                          Map<org.bson.types.ObjectId,T> entities)

Method Detail

distinct

public List<String> distinct(String columnName,
                             Filter filter)

Specified by:

distinct in interface Collection<T>

Parameters:

columnName - the name of the column (field)

filter - : the query filter

Returns:

the distinct values of the column

count

public long count(Filter filter,
                  Integer limit)

Description copied from interface: Collection

Counts the number of entities matching the provided filter

Specified by:

count in interface Collection<T>

limit - the maximum number of documents to count. Nullable.

Returns:

the number of entities matching the provided filter

estimatedCount

public long estimatedCount()

Description copied from interface: Collection

Provide an estimation of the total number of entities of the collection

Specified by:

estimatedCount in interface Collection<T>

Returns:

find

public Stream<T> find(Filter filter,
                      SearchOrder order,
                      Integer skip,
                      Integer limit,
                      int maxTime)

Specified by:

find in interface Collection<T>

Returns:

findReduced

public Stream<T> findReduced(Filter filter,
                             SearchOrder order,
                             Integer skip,
                             Integer limit,
                             int maxTime,
                             List<String> reduceFields)

Specified by:

findReduced in interface Collection<T>

remove

public void remove(Filter filter)

Specified by:

remove in interface Collection<T>

save

public T save(T entity)

Specified by:

save in interface Collection<T>

save

public void save(Iterable<T> entities)

Specified by:

save in interface Collection<T>

createOrUpdateIndex

public void createOrUpdateIndex(String field)

Specified by:

createOrUpdateIndex in interface Collection<T>

createOrUpdateCompoundIndex

public void createOrUpdateCompoundIndex(String... fields)

Specified by:

createOrUpdateCompoundIndex in interface Collection<T>

rename

public void rename(String newName)

Specified by:

rename in interface Collection<T>

drop

public void drop()

Specified by:

drop in interface Collection<T>