LayeredCRUDAccessor (Step 3.14.0 API)

java.lang.Object
- step.core.accessors.LayeredCRUDAccessor<T>

All Implemented Interfaces:

Accessor<T>, CRUDAccessor<T>

Direct Known Subclasses:

LayeredFunctionAccessor, LayeredPlanAccessor
```
public class LayeredCRUDAccessor<T extends AbstractIdentifiableObject>
extends Object
implements CRUDAccessor<T>
```

Constructor Summary

Constructors
Constructor and Description

LayeredCRUDAccessor()

LayeredCRUDAccessor(List<? extends CRUDAccessor<T>> accessors)

Constructors
Constructor and Description
`LayeredCRUDAccessor()`
`LayeredCRUDAccessor(List<? extends CRUDAccessor<T>> accessors)`

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`void`	`addAccessor(CRUDAccessor<T> accessor)`
`T`	`findByAttributes(Map<String,String> attributes)` Find an object by default attributes.
`T`	`findByAttributes(Map<String,String> attributes, String attributesMapKey)` Find an object by attributes.
`Spliterator<T>`	`findManyByAttributes(Map<String,String> attributes)` Find objects by attributes.
`Spliterator<T>`	`findManyByAttributes(Map<String,String> attributes, String attributesMapKey)` Find objects by attributes.
`T`	`get(org.bson.types.ObjectId id)` Get an object by id
`T`	`get(String id)` Get an object by id
`protected CRUDAccessor<T>`	`getAccessorForPersistence()`
`Iterator<T>`	`getAll()`
`List<T>`	`getRange(int skip, int limit)` Get the range of objects specified by the skip/limit parameters browsing the collection sorted by ID in the descending order
`protected <V> V`	`layeredLookup(Function<CRUDAccessor<T>,V> f)`
`protected <V> Spliterator<V>`	`layeredMerge(Function<CRUDAccessor<T>,Spliterator<V>> f)`
`void`	`pushAccessor(CRUDAccessor<T> accessor)`
`void`	`remove(org.bson.types.ObjectId id)`
`void`	`save(Collection<? extends T> entities)` Save a list of entities.
`T`	`save(T entity)` Save an entity.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - LayeredCRUDAccessor
```
public LayeredCRUDAccessor()
```
  - LayeredCRUDAccessor
```
public LayeredCRUDAccessor(List<? extends CRUDAccessor<T>> accessors)
```
- Method Detail
  - addAccessor
```
public void addAccessor(CRUDAccessor<T> accessor)
```
  - pushAccessor
```
public void pushAccessor(CRUDAccessor<T> accessor)
```
  - get
```
public T get(org.bson.types.ObjectId id)
```
    Description copied from interface: Accessor
    
    Get an object by id
    
    Specified by:
    
    get in interface Accessor<T extends AbstractIdentifiableObject>
    
    Parameters:
    
    id - the UID of the object
    
    Returns:
    
    the object
  - layeredLookup
```
protected <V> V layeredLookup(Function<CRUDAccessor<T>,V> f)
```
  - get
```
public T get(String id)
```
    Description copied from interface: Accessor
    
    Get an object by id
    
    Specified by:
    
    get in interface Accessor<T extends AbstractIdentifiableObject>
    
    Parameters:
    
    id - the UID of the object
    
    Returns:
    
    the object
  - findByAttributes
```
public T findByAttributes(Map<String,String> attributes)
```
    Description copied from interface: Accessor
    
    Find an object by default attributes. If multiple objects match these attributes, the first one will be returned
    
    Specified by:
    
    findByAttributes in interface Accessor<T extends AbstractIdentifiableObject>
    
    Parameters:
    
    attributes - the map of mandatory attributes of the object to be found
    
    Returns:
    
    the object
  - findManyByAttributes
```
public Spliterator<T> findManyByAttributes(Map<String,String> attributes)
```
    Description copied from interface: Accessor
    
    Find objects by attributes.
    
    Specified by:
    
    findManyByAttributes in interface Accessor<T extends AbstractIdentifiableObject>
    
    Parameters:
    
    attributes - the map of mandatory attributes of the object to be found
    
    Returns:
    
    an Iterator for the objects found
  - layeredMerge
```
protected <V> Spliterator<V> layeredMerge(Function<CRUDAccessor<T>,Spliterator<V>> f)
```
  - getAll
```
public Iterator<T> getAll()
```
    Specified by:
    
    getAll in interface Accessor<T extends AbstractIdentifiableObject>
  - findByAttributes
```
public T findByAttributes(Map<String,String> attributes,
                          String attributesMapKey)
```
    Description copied from interface: Accessor
    
    Find an object by attributes. If multiple objects match these attributes, the first one will be returned
    
    Specified by:
    
    findByAttributes in interface Accessor<T extends AbstractIdentifiableObject>
    
    Parameters:
    
    attributes - the map of mandatory attributes of the object to be found
    
    attributesMapKey - the string representing the name (or "key") of the attribute map
    
    Returns:
    
    the object
  - findManyByAttributes
```
public Spliterator<T> findManyByAttributes(Map<String,String> attributes,
                                           String attributesMapKey)
```
    Description copied from interface: Accessor
    
    Find objects by attributes.
    
    Specified by:
    
    findManyByAttributes in interface Accessor<T extends AbstractIdentifiableObject>
    
    Parameters:
    
    attributes - the map of mandatory attributes of the object to be found
    
    attributesMapKey - the string representing the name (or "key") of the attribute map
    
    Returns:
    
    an Iterator for the objects found
  - getRange
```
public List<T> getRange(int skip,
                        int limit)
```
    Description copied from interface: Accessor
    
    Get the range of objects specified by the skip/limit parameters browsing the collection sorted by ID in the descending order
    
    Specified by:
    
    getRange in interface Accessor<T extends AbstractIdentifiableObject>
    
    Parameters:
    
    skip - the start index (inclusive) of the range
    
    limit - the size of the range
    
    Returns:
    
    a List containing the objects of the specified range
  - remove
```
public void remove(org.bson.types.ObjectId id)
```
    Specified by:
    
    remove in interface CRUDAccessor<T extends AbstractIdentifiableObject>
  - save
```
public T save(T entity)
```
    Description copied from interface: CRUDAccessor
    
    Save an entity. If an entity with the same id exists, it will be updated otherwise inserted.
    
    Specified by:
    
    save in interface CRUDAccessor<T extends AbstractIdentifiableObject>
    
    Parameters:
    
    entity - the entity instance to be saved
    
    Returns:
    
    the saved entity
  - save
```
public void save(Collection<? extends T> entities)
```
    Description copied from interface: CRUDAccessor
    
    Save a list of entities.
    
    Specified by:
    
    save in interface CRUDAccessor<T extends AbstractIdentifiableObject>
    
    Parameters:
    
    entities - the list of entities to be saved
  - getAccessorForPersistence
```
protected CRUDAccessor<T> getAccessorForPersistence()
```

Class LayeredCRUDAccessor<T extends AbstractIdentifiableObject>

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

LayeredCRUDAccessor

LayeredCRUDAccessor

Method Detail

addAccessor

pushAccessor

get

layeredLookup

get

findByAttributes

findManyByAttributes

layeredMerge

getAll

findByAttributes

findManyByAttributes

getRange

remove

save

save

getAccessorForPersistence