Package uk.gov.gchq.gaffer.data.element

Class LazyEntity

java.lang.Object

uk.gov.gchq.gaffer.data.element.Element

uk.gov.gchq.gaffer.data.element.Entity

uk.gov.gchq.gaffer.data.element.LazyEntity

All Implemented Interfaces:

Serializable, ElementId, EntityId

public class LazyEntity
extends Entity

An LazyEntity wraps an Entity and lazily loads the identifier and properties when requested using a provided ElementValueLoader. This will avoid loading all of an entity's properties just for it to be filtered out by a filter function.

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class uk.gov.gchq.gaffer.data.element.Entity

Entity.Builder

Nested classes/interfaces inherited from interface uk.gov.gchq.gaffer.data.element.id.ElementId

ElementId.Matches

Field Summary

Fields inherited from class uk.gov.gchq.gaffer.data.element.Element

DEFAULT_GROUP

Constructor Summary

Constructors

Constructor	Description
LazyEntity(Entity entity, ElementValueLoader valueLoader)	Constructs a by wrapping the provided Entity and using the ElementValueLoader to lazily load the element's identifiers and properties when requested.

Method Summary

Modifier and Type	Method	Description
boolean	equals(Object element)
Entity	getElement()
String	getGroup()
LazyProperties	getProperties()
Object	getProperty(String name)
Object	getVertex()	Get the vertex object.
int	hashCode()
void	putIdentifier(IdentifierType name, Object value)
void	putProperty(String name, Object value)
void	setVertex(Object vertex)	Set the vertex object.

Methods inherited from class uk.gov.gchq.gaffer.data.element.Entity

emptyClone, equals, getIdentifier, shallowClone, toString

Methods inherited from class uk.gov.gchq.gaffer.data.element.Element

copyProperties, removeProperty, shallowEquals, shallowEquals

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface uk.gov.gchq.gaffer.data.element.id.ElementId

getClassName, setClassName

Methods inherited from interface uk.gov.gchq.gaffer.data.element.id.EntityId

isEqual, isEqual, isRelated, isRelated

Constructor Detail

LazyEntity

public LazyEntity(Entity entity,
                  ElementValueLoader valueLoader)

Constructs a by wrapping the provided Entity and using the ElementValueLoader to lazily load the element's identifiers and properties when requested.

Parameters:

entity - the entity to wrap.

valueLoader - the element value loader to use to lazily load the element's identifiers and properties

Method Detail

getProperty

public Object getProperty(String name)

Overrides:

getProperty in class Element

getVertex

public Object getVertex()

Description copied from interface: EntityId

Get the vertex object.

Specified by:

getVertex in interface EntityId

Overrides:

getVertex in class Entity

Returns:

the vertex

setVertex

public void setVertex(Object vertex)

Description copied from interface: EntityId

Set the vertex object.

Specified by:

setVertex in interface EntityId

Overrides:

setVertex in class Entity

Parameters:

vertex - the vertex object to set

putProperty

public void putProperty(String name,
                        Object value)

Overrides:

putProperty in class Element

getGroup

public String getGroup()

Overrides:

getGroup in class Element

getElement

public Entity getElement()

Overrides:

getElement in class Element

getProperties

public LazyProperties getProperties()

Overrides:

getProperties in class Element

equals

public boolean equals(Object element)

Overrides:

equals in class Entity

putIdentifier

public void putIdentifier(IdentifierType name,
                          Object value)

Overrides:

putIdentifier in class Entity

hashCode

public int hashCode()

Overrides:

hashCode in class Entity