org.springframework.data.neo4j.support.typerepresentation
Class IndexingNodeTypeRepresentationStrategy

java.lang.Object
  org.springframework.data.neo4j.support.typerepresentation.IndexingNodeTypeRepresentationStrategy

All Implemented Interfaces:

NodeTypeRepresentationStrategy, TypeRepresentationStrategy<org.neo4j.graphdb.Node,NodeBacked>

public class IndexingNodeTypeRepresentationStrategy
extends Object
implements NodeTypeRepresentationStrategy

Field Summary

static String	INDEX_KEY
static String	INDEX_NAME
static String	TYPE_PROPERTY_NAME

Constructor Summary

IndexingNodeTypeRepresentationStrategy(org.neo4j.graphdb.GraphDatabaseService graphDb, org.springframework.data.persistence.EntityInstantiator<NodeBacked,org.neo4j.graphdb.Node> graphEntityInstantiator)

Method Summary

long	count(Class<? extends NodeBacked> entityClass)
<U extends NodeBacked> U	createEntity(org.neo4j.graphdb.Node state) Instantiate the entity given its state.
<U extends NodeBacked> U	createEntity(org.neo4j.graphdb.Node state, Class<U> type) Instantiate the entity given its state.
<U extends NodeBacked> org.neo4j.helpers.collection.ClosableIterable<U>	findAll(Class<U> clazz)
Class<? extends NodeBacked>	getJavaType(org.neo4j.graphdb.Node node)
void	postEntityCreation(org.neo4j.graphdb.Node state, Class<? extends NodeBacked> type) Callback for setting up and/or storing type information after creation.
void	preEntityRemoval(org.neo4j.graphdb.Node state) Callback for cleaning up type information before removal.
<U extends NodeBacked> U	projectEntity(org.neo4j.graphdb.Node state, Class<U> type) Instantiate the entity of the given type, with the given state as backing state.

Methods inherited from class java.lang.Object

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

Field Detail

INDEX_NAME

public static final String INDEX_NAME

See Also:

Constant Field Values

TYPE_PROPERTY_NAME

public static final String TYPE_PROPERTY_NAME

See Also:

Constant Field Values

INDEX_KEY

public static final String INDEX_KEY

See Also:

Constant Field Values

Constructor Detail

IndexingNodeTypeRepresentationStrategy

public IndexingNodeTypeRepresentationStrategy(org.neo4j.graphdb.GraphDatabaseService graphDb,
                                              org.springframework.data.persistence.EntityInstantiator<NodeBacked,org.neo4j.graphdb.Node> graphEntityInstantiator)

Method Detail

postEntityCreation

public void postEntityCreation(org.neo4j.graphdb.Node state,
                               Class<? extends NodeBacked> type)

Description copied from interface: TypeRepresentationStrategy

Callback for setting up and/or storing type information after creation.

Specified by:

postEntityCreation in interface TypeRepresentationStrategy<org.neo4j.graphdb.Node,NodeBacked>

Parameters:

state - Backing state of entity being created

type - Type of entity being created

findAll

public <U extends NodeBacked> org.neo4j.helpers.collection.ClosableIterable<U> findAll(Class<U> clazz)

Specified by:

findAll in interface TypeRepresentationStrategy<org.neo4j.graphdb.Node,NodeBacked>

Parameters:

clazz - Type whose instances should be iterated over

Returns:

lazy Iterable over all instances of the given type

count

public long count(Class<? extends NodeBacked> entityClass)

Specified by:

count in interface TypeRepresentationStrategy<org.neo4j.graphdb.Node,NodeBacked>

Returns:

number of instances of this class contained in the graph

getJavaType

public Class<? extends NodeBacked> getJavaType(org.neo4j.graphdb.Node node)

Specified by:

getJavaType in interface TypeRepresentationStrategy<org.neo4j.graphdb.Node,NodeBacked>

Returns:

java type that of the node entity of this node

preEntityRemoval

public void preEntityRemoval(org.neo4j.graphdb.Node state)

Description copied from interface: TypeRepresentationStrategy

Callback for cleaning up type information before removal. If state does not have any state associated, doesn't do anything.

Specified by:

preEntityRemoval in interface TypeRepresentationStrategy<org.neo4j.graphdb.Node,NodeBacked>

Parameters:

state - Backing state of entity being removed

createEntity

public <U extends NodeBacked> U createEntity(org.neo4j.graphdb.Node state)

Description copied from interface: TypeRepresentationStrategy

Instantiate the entity given its state. The type of the entity is inferred by the strategy from the state.

Specified by:

createEntity in interface TypeRepresentationStrategy<org.neo4j.graphdb.Node,NodeBacked>

Type Parameters:

U - Helper parameter for castless use

Parameters:

state - Backing state of entity to be instantiated

Returns:

Entity instance

createEntity

public <U extends NodeBacked> U createEntity(org.neo4j.graphdb.Node state,
                                             Class<U> type)

Description copied from interface: TypeRepresentationStrategy

Instantiate the entity given its state. The type of the desired entity is also specified. If the type is not compatible with what the strategy can infer from the state, IllegalArgumentException is thrown.

Specified by:

createEntity in interface TypeRepresentationStrategy<org.neo4j.graphdb.Node,NodeBacked>

Parameters:

state - Backing state of entity to be instantiated

type - Type of entity to be instantiated

Returns:

Entity instance

projectEntity

public <U extends NodeBacked> U projectEntity(org.neo4j.graphdb.Node state,
                                              Class<U> type)

Description copied from interface: TypeRepresentationStrategy

Instantiate the entity of the given type, with the given state as backing state. No checking is done by the strategy.

Specified by:

projectEntity in interface TypeRepresentationStrategy<org.neo4j.graphdb.Node,NodeBacked>

Parameters:

state - Backing state of entity to be instantiated

type - Type of entity to be instantiated

Returns:

Entity instance.