Package science.aist.neo4j.repository

Class FutureRepository

java.lang.Object

science.aist.neo4j.repository.AbstractNeo4JRepository

science.aist.neo4j.repository.FutureRepository

All Implemented Interfaces:

Neo4jRepository

public class FutureRepository
extends AbstractNeo4JRepository

In case of cyclic dependencies between repositories we return a future repository that attempts to load when needed. The implementing classes, or another repository mechanism may choose to replace the future repository with the real one later.

Since:

1.0

Author:

Oliver Krauss

Constructor Summary

Constructors

Constructor	Description
FutureRepository(TransactionManager manager, String signature)

Method Summary

Modifier and Type	Method	Description
void	deleteAll()	Deletes all science.neo4j.nodes in neo4j that are of type S
Iterable	findAll()	Returns all node in neo4j that are of type S
Iterable	findAllBy(String condition, org.neo4j.driver.Value parameters)	Returns ALL science.neo4j.nodes that satisfies the given condition.
Object	findBy(String condition, org.neo4j.driver.Value parameters)	Returns the first node that satisfies the given condition.
Object	findById(Object o)	Returns the node with the given id, or null if no such node exists
Object	findSubtree(Object o)	Returns the entire subtree of the node with the given id, or null if no such node exists
Object	findSubtree(Object o, int depth)	Returns the entire subtree of the node with the given id, or null if no such node exists
Object	findSubtree(Object o, int depth, List relationships)	Returns the entire subtree of the node with the given id, or null if no such node exists
Object	save(Object node)	Stores the node in the database.
Iterable	saveAll(Iterable nodes)	Saves all given science.neo4j.nodes (create or update)

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

Constructor Detail

FutureRepository

public FutureRepository(TransactionManager manager,
                        String signature)

Method Detail

findBy

public Object findBy(String condition,
                     org.neo4j.driver.Value parameters)

Description copied from class: AbstractNeo4JRepository

Returns the first node that satisfies the given condition. The condition may access the node with "n" Example: findByCondition("n.name = $name", Values.parameters("name", "Dijkstra"))

Specified by:

findBy in class AbstractNeo4JRepository

Parameters:

condition - any condition that would be after the "WHERE" in a cypher queryTyped

parameters - all parameters defined in the condition (parameters optional)

Returns:

first node that satisifes condition with parameters

findAllBy

public Iterable findAllBy(String condition,
                          org.neo4j.driver.Value parameters)

Description copied from class: AbstractNeo4JRepository

Returns ALL science.neo4j.nodes that satisfies the given condition. The condition may access the node with "n" Example: findByCondition("n.name in $names", Values.parameters("names", Values.parameters("Dijkstra", "Knuth", "Turing")))

Specified by:

findAllBy in class AbstractNeo4JRepository

Parameters:

condition - any condition that would be after the "WHERE" in a cypher queryTyped

parameters - all parameters defined in the condition (parameters optional)

Returns:

first node that satisifes condition with parameters

deleteAll

public void deleteAll()

Description copied from interface: Neo4jRepository

Deletes all science.neo4j.nodes in neo4j that are of type S

findAll

public Iterable findAll()

Description copied from interface: Neo4jRepository

Returns all node in neo4j that are of type S

Returns:

iterator over all S

findById

public Object findById(Object o)

Description copied from interface: Neo4jRepository

Returns the node with the given id, or null if no such node exists

Parameters:

o - id of node

Returns:

node or null

findSubtree

public Object findSubtree(Object o)

Description copied from interface: Neo4jRepository

Returns the entire subtree of the node with the given id, or null if no such node exists

Parameters:

o - id of node

Returns:

node with children (infinite depth!) or null

findSubtree

public Object findSubtree(Object o,
                          int depth)

Description copied from interface: Neo4jRepository

Returns the entire subtree of the node with the given id, or null if no such node exists

Parameters:

o - id of node

depth - depth until the subtree will be loaded (-1 is infinite, 0 is node only)

Returns:

node with children up to depth or null

saveAll

public Iterable saveAll(Iterable nodes)

Description copied from interface: Neo4jRepository

Saves all given science.neo4j.nodes (create or update)

Parameters:

nodes - to be saved

Returns:

science.neo4j.nodes with id

save

public Object save(Object node)

Description copied from interface: Neo4jRepository

Stores the node in the database. If the node has an ID a merge is conducted, if the ID is empty a new node is always created

Parameters:

node - node to be stored

Returns:

node with ID

findSubtree

public Object findSubtree(Object o,
                          int depth,
                          List relationships)

Description copied from interface: Neo4jRepository

Returns the entire subtree of the node with the given id, or null if no such node exists

Parameters:

o - id of node

depth - depth until the subtree will be loaded (-1 is infinite, 0 is node only)

relationships - that will be loaded (all non mentioned will be omitted)

Returns:

node with children up to depth or null