Package science.aist.neo4j.reflective

Class ReflectiveNeo4JRelationshipRepositoryImpl<S>

java.lang.Object

science.aist.neo4j.repository.AbstractNeo4JRepository<S,Long>

science.aist.neo4j.repository.AbstractNeo4JRelationshipRepositoyImpl<S>

science.aist.neo4j.reflective.ReflectiveNeo4JRelationshipRepositoryImpl<S>

Type Parameters:

S - Type of node

All Implemented Interfaces:

Neo4jRepository<S,Long>

public class ReflectiveNeo4JRelationshipRepositoryImpl<S>
extends AbstractNeo4JRelationshipRepositoyImpl<S>

Implementation of AbstractNeo4JRelationshipRepositoyImpl using java reflection

Since:

1.0

Author:

Oliver Krauss

Field Summary

Fields

Modifier and Type	Field	Description
protected Class<S>	clazz	Class that this repository is managing
protected ClassInformation	info	Metadata for storage purposes
protected AbstractNeo4JRepository	sourceRepository	Repository for the source science.neo4j.nodes
protected AbstractNeo4JRepository	targetRepository	Repository for the taret science.neo4j.nodes

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	ReflectiveNeo4JRelationshipRepositoryImpl(TransactionManager manager)	Empty constructor for child implementations.
	ReflectiveNeo4JRelationshipRepositoryImpl(TransactionManager manager, Class<S> clazz)
	ReflectiveNeo4JRelationshipRepositoryImpl(TransactionManager manager, ParameterizedType type, String name)	Generates the repository by a Generic Type

Method Summary

Modifier and Type	Method	Description
protected S	cast(org.neo4j.driver.Value value, org.neo4j.driver.Value source, org.neo4j.driver.Value target)	Casts the result of the queryTyped into a relationship class
protected Long	getId(S node)	Helper method for finding the id of a node
protected Object	getSource(S node)
protected Object	getSourceId(S node)
protected Object	getTarget(S node)
protected Object	getTargetId(S node)
protected <T extends S> Collection<T>	handleSourceAndTarget(Collection<T> nodes)	Helper method that is responsible for storing all source or target science.neo4j.nodes in a multitude of relationships
protected <T extends S> T	handleSourceAndTarget(T node)	Helper method that is responsible for storing source or target science.neo4j.nodes.
protected Map<String,Object>	objectify(S node)	Turns all properties of a Relationship into something to be used by the queries
protected S	setId(S node, Long id)	Helper method for setting the id when a node was stored to the database
void	setSourceRepository(AbstractNeo4JRepository sourceRepository)
void	setTargetRepository(AbstractNeo4JRepository targetRepository)

Methods inherited from class science.aist.neo4j.repository.AbstractNeo4JRelationshipRepositoyImpl

deleteAll, execute, executeAll, findAll, findAllBy, findBy, findById, findSubtree, findSubtree, findSubtree, init, query, queryAll, save, saveAll

Methods inherited from class science.aist.neo4j.repository.AbstractNeo4JRepository

buildParameters, buildWhere, findAllBy, findAllBy, findBy, findBy, getProvidedRepository, getTransactionManager, provideRepository

Methods inherited from class java.lang.Object

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

Methods inherited from interface science.aist.neo4j.Neo4jRepository

findAllAsStream

Field Detail

clazz

protected Class<S> clazz

Class that this repository is managing

info

protected ClassInformation info

Metadata for storage purposes

sourceRepository

protected AbstractNeo4JRepository sourceRepository

Repository for the source science.neo4j.nodes

targetRepository

protected AbstractNeo4JRepository targetRepository

Repository for the taret science.neo4j.nodes

Constructor Detail

ReflectiveNeo4JRelationshipRepositoryImpl

protected ReflectiveNeo4JRelationshipRepositoryImpl(TransactionManager manager)

Empty constructor for child implementations. If you use this one, you must call init() yourself.

Parameters:

manager - used to handle transactions

ReflectiveNeo4JRelationshipRepositoryImpl

public ReflectiveNeo4JRelationshipRepositoryImpl(TransactionManager manager,
                                                 ParameterizedType type,
                                                 String name)

Generates the repository by a Generic Type

Parameters:

type - java generic type

name - of relationship in DB as this is part of the identity

manager - used to handle transactions

ReflectiveNeo4JRelationshipRepositoryImpl

public ReflectiveNeo4JRelationshipRepositoryImpl(TransactionManager manager,
                                                 Class<S> clazz)

Method Detail

cast

protected S cast(org.neo4j.driver.Value value,
                 org.neo4j.driver.Value source,
                 org.neo4j.driver.Value target)

Description copied from class: AbstractNeo4JRelationshipRepositoyImpl

Casts the result of the queryTyped into a relationship class

Specified by:

cast in class AbstractNeo4JRelationshipRepositoyImpl<S>

Parameters:

value - to be cast

source - source node of relationship

target - target node of relationship

Returns:

relationship object

setId

protected S setId(S node,
                  Long id)

Description copied from class: AbstractNeo4JRelationshipRepositoyImpl

Helper method for setting the id when a node was stored to the database

Specified by:

setId in class AbstractNeo4JRelationshipRepositoyImpl<S>

Parameters:

node - to be assigned an id

id - of the relationsip

Returns:

node with id

getId

protected Long getId(S node)

Description copied from class: AbstractNeo4JRelationshipRepositoyImpl

Helper method for finding the id of a node

Specified by:

getId in class AbstractNeo4JRelationshipRepositoyImpl<S>

Parameters:

node - to return the id from

Returns:

id of node or null

handleSourceAndTarget

protected <T extends S> T handleSourceAndTarget(T node)

Description copied from class: AbstractNeo4JRelationshipRepositoyImpl

Helper method that is responsible for storing source or target science.neo4j.nodes.

Specified by:

handleSourceAndTarget in class AbstractNeo4JRelationshipRepositoyImpl<S>

Type Parameters:

T - extension of S

Parameters:

node - to be saved

Returns:

node

handleSourceAndTarget

protected <T extends S> Collection<T> handleSourceAndTarget(Collection<T> nodes)

Description copied from class: AbstractNeo4JRelationshipRepositoyImpl

Helper method that is responsible for storing all source or target science.neo4j.nodes in a multitude of relationships

Specified by:

handleSourceAndTarget in class AbstractNeo4JRelationshipRepositoyImpl<S>

Type Parameters:

T - extension of S

Parameters:

nodes - to be saved

Returns:

science.neo4j.nodes

objectify

protected Map<String,Object> objectify(S node)

Description copied from class: AbstractNeo4JRelationshipRepositoyImpl

Turns all properties of a Relationship into something to be used by the queries

Specified by:

objectify in class AbstractNeo4JRelationshipRepositoyImpl<S>

Parameters:

node - to be transformed

Returns:

a map containing the id, and another map that contains all properties

getSource

protected Object getSource(S node)

getTarget

protected Object getTarget(S node)

getSourceId

protected Object getSourceId(S node)

getTargetId

protected Object getTargetId(S node)

setSourceRepository

public void setSourceRepository(AbstractNeo4JRepository sourceRepository)

setTargetRepository

public void setTargetRepository(AbstractNeo4JRepository targetRepository)