org.neo4j.graphdb
Interface Expander

All Superinterfaces:

RelationshipExpander

All Known Implementing Classes:

OrderedByTypeExpander, StandardExpander

public interface Expander
extends RelationshipExpander

This interface is an extension of the RelationshipExpander interface that makes it possible to build customized versions of an Expander.

Method Summary

Expander	add(RelationshipType type) Add a RelationshipType to the Expander.
Expander	add(RelationshipType type, Direction direction) Add a RelationshipType with a Direction to the Expander.
Expander	addNodeFilter(Predicate<? super Node> filter) Add a Node filter.
Expander	addRelationshipFilter(Predicate<? super Relationship> filter) Add a Relationship filter.
Expander	addRelationsipFilter(Predicate<? super Relationship> filter) Deprecated. because of typo, use addRelationshipFilter(Predicate) instead
Expander	remove(RelationshipType type) Remove a RelationshipType from the Expander.
Expander	reversed() Returns a new instance with the exact expansion logic, but reversed.

Methods inherited from interface org.neo4j.graphdb.RelationshipExpander

expand

Method Detail

reversed

Expander reversed()

Description copied from interface: RelationshipExpander

Returns a new instance with the exact expansion logic, but reversed. For example if this expander is set to expand:

• KNOWS : OUTGOING
• LIVES : INCOMING

Then the reversed expander will be set to expand:

• KNOWS : INCOMING
• LIVES : OUTGOING

Specified by:

reversed in interface RelationshipExpander

Returns:

a reversed RelationshipExpander.

add

Expander add(RelationshipType type)

Add a RelationshipType to the Expander.

Parameters:

type - relationship type

Returns:

new instance

add

Expander add(RelationshipType type,
             Direction direction)

Add a RelationshipType with a Direction to the Expander.

Parameters:

type - relationship type

direction - expanding direction

Returns:

new instance

remove

Expander remove(RelationshipType type)

Remove a RelationshipType from the Expander.

Parameters:

type - relationship type

Returns:

new instance

addNodeFilter

Expander addNodeFilter(Predicate<? super Node> filter)

Add a Node filter.

Parameters:

filter - filter to use

Returns:

new instance

addRelationsipFilter

Expander addRelationsipFilter(Predicate<? super Relationship> filter)

Deprecated. because of typo, use addRelationshipFilter(Predicate) instead

Add a Relationship filter.

Parameters:

filter - filter to use

Returns:

new instance

addRelationshipFilter

Expander addRelationshipFilter(Predicate<? super Relationship> filter)

Add a Relationship filter.

Parameters:

filter - filter to use

Returns:

new instance