eu.europeana.corelib.search.impl

Class Neo4jSearchServiceImpl

java.lang.Object

eu.europeana.corelib.search.impl.Neo4jSearchServiceImpl

All Implemented Interfaces:

Neo4jSearchService

@Lazy
public class Neo4jSearchServiceImpl
extends Object
implements Neo4jSearchService

Lookup hierarchical information from Neo4j server

Author:

Patrick Ehlert Created on 01-03-2018

Field Summary

Fields

Modifier and Type	Field and Description
protected Neo4jServer	neo4jServer

Constructor Summary

Constructors

Constructor and Description
Neo4jSearchServiceImpl()

Method Summary

Modifier and Type	Method and Description
List<Neo4jBean>	getChildren(String rdfAbout) Get the children of the node (max 10)
List<Neo4jBean>	getChildren(String rdfAbout, int offset) Get the children of the node (max 10)
List<Neo4jBean>	getChildren(String rdfAbout, int offset, int limit) Get the children of the node (max 10)
long	getChildrenCount(String rdfAbout) Get the number of children this node has
List<Neo4jBean>	getFollowingSiblings(String rdfAbout) Get the node's 10 following siblings
List<Neo4jBean>	getFollowingSiblings(String rdfAbout, int limit) Get the nodes following siblings
List<Neo4jBean>	getFollowingSiblings(String rdfAbout, int offset, int limit) Get the nodes following siblings
Neo4jBean	getHierarchicalBean(String rdfAbout) Get a node object
Neo4jStructBean	getInitialStruct(String nodeId) Get the initial structure, which contains self, the ancestors, preceding and following siblings
List<Neo4jBean>	getPrecedingSiblings(String rdfAbout) Get the nodes preceding siblings (max 10)
List<Neo4jBean>	getPrecedingSiblings(String rdfAbout, int limit) Get the nodes preceeding siblings
List<Neo4jBean>	getPrecedingSiblings(String rdfAbout, int offset, int limit) Get the nodes preceeding siblings

Methods inherited from class java.lang.Object

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

Field Detail

neo4jServer

protected Neo4jServer neo4jServer

Constructor Detail

Neo4jSearchServiceImpl

public Neo4jSearchServiceImpl()

Method Detail

getChildren

public List<Neo4jBean> getChildren(String rdfAbout,
                                   int offset,
                                   int limit)

Description copied from interface: Neo4jSearchService

Get the children of the node (max 10)

Specified by:

getChildren in interface Neo4jSearchService

Parameters:

rdfAbout - The ID of the record

offset - The offset of the first child

limit - The number of records to retrieve

Returns:

node's children

getChildren

public List<Neo4jBean> getChildren(String rdfAbout,
                                   int offset)

Description copied from interface: Neo4jSearchService

Get the children of the node (max 10)

Specified by:

getChildren in interface Neo4jSearchService

Parameters:

rdfAbout - The ID of the record

offset - The offset of the first child

Returns:

node's children

getChildren

public List<Neo4jBean> getChildren(String rdfAbout)

Description copied from interface: Neo4jSearchService

Get the children of the node (max 10)

Specified by:

getChildren in interface Neo4jSearchService

Parameters:

rdfAbout - The ID of the record

Returns:

node's children

getHierarchicalBean

public Neo4jBean getHierarchicalBean(String rdfAbout)
                              throws Neo4JException

Description copied from interface: Neo4jSearchService

Get a node object

Specified by:

getHierarchicalBean in interface Neo4jSearchService

Parameters:

rdfAbout - The ID of the record

Returns:

node object

Throws:

Neo4JException

getPrecedingSiblings

public List<Neo4jBean> getPrecedingSiblings(String rdfAbout,
                                            int offset,
                                            int limit)
                                     throws Neo4JException

Description copied from interface: Neo4jSearchService

Get the nodes preceeding siblings

Specified by:

getPrecedingSiblings in interface Neo4jSearchService

Parameters:

rdfAbout - The ID of the record

offset - How many siblings to skip

limit - How many siblings to retrieve

Returns:

node's preceding siblings

Throws:

Neo4JException

getPrecedingSiblings

public List<Neo4jBean> getPrecedingSiblings(String rdfAbout,
                                            int limit)
                                     throws Neo4JException

Description copied from interface: Neo4jSearchService

Get the nodes preceeding siblings

Specified by:

getPrecedingSiblings in interface Neo4jSearchService

Parameters:

rdfAbout - The ID of the record

limit - How many siblings to retrieve

Returns:

node's preceding siblings

Throws:

Neo4JException

getPrecedingSiblings

public List<Neo4jBean> getPrecedingSiblings(String rdfAbout)
                                     throws Neo4JException

Description copied from interface: Neo4jSearchService

Get the nodes preceding siblings (max 10)

Specified by:

getPrecedingSiblings in interface Neo4jSearchService

Parameters:

rdfAbout - The ID of the record

Returns:

node's preceding siblings

Throws:

Neo4JException

getFollowingSiblings

public List<Neo4jBean> getFollowingSiblings(String rdfAbout,
                                            int offset,
                                            int limit)
                                     throws Neo4JException

Description copied from interface: Neo4jSearchService

Get the nodes following siblings

Specified by:

getFollowingSiblings in interface Neo4jSearchService

Parameters:

rdfAbout - The ID of the record

offset - How many siblings to skip

limit - How many siblings to retrieve

Returns:

node's following siblings

Throws:

Neo4JException

getFollowingSiblings

public List<Neo4jBean> getFollowingSiblings(String rdfAbout,
                                            int limit)
                                     throws Neo4JException

Description copied from interface: Neo4jSearchService

Get the nodes following siblings

Specified by:

getFollowingSiblings in interface Neo4jSearchService

Parameters:

rdfAbout - The ID of the record

limit - How many siblings to retrieve

Returns:

node's following siblings

Throws:

Neo4JException

getFollowingSiblings

public List<Neo4jBean> getFollowingSiblings(String rdfAbout)
                                     throws Neo4JException

Description copied from interface: Neo4jSearchService

Get the node's 10 following siblings

Specified by:

getFollowingSiblings in interface Neo4jSearchService

Parameters:

rdfAbout - The ID of the record

Returns:

node's following siblings

Throws:

Neo4JException

getChildrenCount

public long getChildrenCount(String rdfAbout)
                      throws Neo4JException

Description copied from interface: Neo4jSearchService

Get the number of children this node has

Specified by:

getChildrenCount in interface Neo4jSearchService

Returns:

the number of children

Throws:

Neo4JException

getInitialStruct

public Neo4jStructBean getInitialStruct(String nodeId)
                                 throws Neo4JException

Description copied from interface: Neo4jSearchService

Get the initial structure, which contains self, the ancestors, preceding and following siblings

Specified by:

getInitialStruct in interface Neo4jSearchService

Parameters:

nodeId - The ID of the record

Returns:

The hierarchical structure

Throws:

Neo4JException