Spring 数据 Neo4j 4.0 中的 Neo4j TimeTree
Neo4j TimeTree in Spring Data Neo4j 4.0
我正在尝试在我的 spring 数据 neo4j 4.0.0 项目中使用时间树库。
如本页所述，https://github.com/graphaware/neo4j-timetree，我编辑了我的 neo4j.properties 文件以启用自动事件附加，将时间树依赖项添加到我的 gradle，并设置 属性 'creationDate' 在具有 Long 数据类型的事件节点中。尽管一切看起来都应该如此，但它仍然没有创建任何时间树。
特此是我的neo4j.property文件：
# Runtime must be enabled like this
com.graphaware.runtime.enabled=true
# A Runtime module that takes care of attaching the events like this (TT is the ID of the module)
com.graphaware.module.TT.1=com.graphaware.module.timetree.module.TimeTreeModuleBootstrapper
# Nodes which represent events and should be attached automatically have to be defined
com.graphaware.module.TT.event=hasLabel('StructureVersionChange'),hasLabel('RuleVersionChange'),hasLabel('FilterVersionChange')
# Optionally, a property on the event nodes that represents the the time (long) at which the event took place must be specified (defaults to "timestamp")
com.graphaware.module.TT.timestamp=creationDate
# Optionally, a resolution can be specified (defaults to DAY)
com.graphaware.module.TT.resolution=SECOND
# Optionally, a time zone can be specified (defaults to UTC)
com.graphaware.module.TT.timezone=CEST
# Optionally, a relationship type with which the events will be attached to the tree can be specified (defaults to AT_TIME)
com.graphaware.module.TT.relationship=CREATED_ON
# autoAttach must be set to true
com.graphaware.module.TT.autoAttach=true
其实在这之前我的项目尝试过使用JAVAAPI版本的Timetree，但是后来真的被timetree构造函数的参数类型弄糊涂了，是Node。而在 spring 中，我的节点具有 类.
的类型
提前致谢，非常感谢您的建议！
编辑：
neo4j.properties
# Runtime must be enabled like this
com.graphaware.runtime.enabled=true
# A Runtime module that takes care of attaching the events like this (TT is the ID of the module)
com.graphaware.module.TT.1=com.graphaware.module.timetree.module.TimeTreeModuleBootstrapper
# Nodes which represent events and should be attached automatically have to be defined
com.graphaware.module.TT.event=hasLabel('FilterVersionChange') || hasLabel('StructureVersionChange') || hasLabel('CodeUnitVersionChange') || hasLabel('RuleVersionChange') || hasLabel('EpisodeVersion')
# Optionally, a property on the event nodes that represents the the time (long) at which the event took place must be specified (defaults to "timestamp")
com.graphaware.module.TT.timestamp=creationDate
# Optionally, a resolution can be specified (defaults to DAY)
com.graphaware.module.TT.resolution=SECOND
# Optionally, a time zone can be specified (defaults to UTC)
com.graphaware.module.TT.timezone=CEST
# Optionally, a relationship type with which the events will be attached to the tree can be specified (defaults to AT_TIME)
com.graphaware.module.TT.relationship=CREATED_ON
# autoAttach must be set to true
com.graphaware.module.TT.autoAttach=true
data/log/neo4j.0.0
May 17, 2015 4:07:42 PM com.sun.jersey.server.impl.application.WebApplicationImpl _initiate
INFO: Initiating Jersey application, version 'Jersey: 1.18.1 02/19/2014 03:28 AM'
May 17, 2015 4:07:42 PM com.sun.jersey.server.impl.application.WebApplicationImpl _initiate
INFO: Initiating Jersey application, version 'Jersey: 1.18.1 02/19/2014 03:28 AM'
May 17, 2015 4:07:43 PM com.sun.jersey.server.impl.application.WebApplicationImpl _initiate
INFO: Initiating Jersey application, version 'Jersey: 1.18.1 02/19/2014 03:28 AM'
May 17, 2015 4:11:39 PM com.sun.jersey.server.impl.application.WebApplicationImpl _initiate
INFO: Initiating Jersey application, version 'Jersey: 1.18.1 02/19/2014 03:28 AM'
May 17, 2015 4:11:39 PM com.sun.jersey.server.impl.application.WebApplicationImpl _initiate
INFO: Initiating Jersey application, version 'Jersey: 1.18.1 02/19/2014 03:28 AM'
May 17, 2015 4:11:39 PM com.sun.jersey.server.impl.application.WebApplicationImpl _initiate
INFO: Initiating Jersey application, version 'Jersey: 1.18.1 02/19/2014 03:28 AM'
May 17, 2015 4:28:49 PM com.sun.jersey.server.impl.application.WebApplicationImpl _initiate
INFO: Initiating Jersey application, version 'Jersey: 1.18.1 02/19/2014 03:28 AM'
May 17, 2015 4:28:49 PM com.sun.jersey.server.impl.application.WebApplicationImpl _initiate
INFO: Initiating Jersey application, version 'Jersey: 1.18.1 02/19/2014 03:28 AM'
May 17, 2015 4:28:49 PM com.sun.jersey.server.impl.application.WebApplicationImpl _initiate
INFO: Initiating Jersey application, version 'Jersey: 1.18.1 02/19/2014 03:28 AM'
data/graph.db/messages
2015-05-17 14:28:46.537+0000 INFO [o.n.k.i.DiagnosticsManager]: --- INITIALIZED diagnostics START ---
2015-05-17 14:28:46.538+0000 INFO [o.n.k.i.DiagnosticsManager]: Neo4j Kernel properties:
2015-05-17 14:28:46.541+0000 INFO [o.n.k.i.DiagnosticsManager]: com.graphaware.module.TT.resolution=DAY
2015-05-17 14:28:46.541+0000 INFO [o.n.k.i.DiagnosticsManager]: com.graphaware.module.TT.timestamp=creationDate
2015-05-17 14:28:46.541+0000 INFO [o.n.k.i.DiagnosticsManager]: com.graphaware.module.TT.relationship=CREATED_ON
2015-05-17 14:28:46.541+0000 INFO [o.n.k.i.DiagnosticsManager]: com.graphaware.module.TT.event=hasLabel('FilterVersionChange') || hasLabel('ArchitectureUnitVersionChange') || hasLabel('CodeUnitVersionChange') || hasLabel('RuleVersionChange') || hasLabel('EpisodeVersion')
2015-05-17 14:28:46.541+0000 INFO [o.n.k.i.DiagnosticsManager]: store_dir=C:\NEO4J-~1.1\data\graph.db
2015-05-17 14:28:46.541+0000 INFO [o.n.k.i.DiagnosticsManager]: com.graphaware.runtime.enabled=true
2015-05-17 14:28:46.541+0000 INFO [o.n.k.i.DiagnosticsManager]: com.graphaware.module.TT.autoAttach=true
2015-05-17 14:28:46.541+0000 INFO [o.n.k.i.DiagnosticsManager]: remote_shell_enabled=true
2015-05-17 14:28:46.541+0000 INFO [o.n.k.i.DiagnosticsManager]: com.graphaware.module.TT.timezone=CEST
2015-05-17 14:28:46.541+0000 INFO [o.n.k.i.DiagnosticsManager]: com.graphaware.module.TT.1=com.graphaware.module.timetree.module.TimeTreeModuleBootstrapper
2015-05-17 14:28:46.544+0000 INFO [o.n.k.i.DiagnosticsManager]: Diagnostics providers:
2015-05-17 14:28:46.544+0000 INFO [o.n.k.i.DiagnosticsManager]: org.neo4j.kernel.configuration.Config
...
...
2015-05-17 14:28:48.656+0000 INFO [o.n.k.i.DiagnosticsManager]: --- STARTED diagnostics for KernelDiagnostics:StoreFiles END ---
2015-05-17 14:28:48.696+0000 INFO [o.n.k.EmbeddedGraphDatabase]: Database is now ready
2015-05-17 14:28:48.696+0000 INFO [o.n.s.d.LifecycleManagingDatabase]: Successfully started database
2015-05-17 14:28:48.699+0000 INFO [o.n.k.i.DiagnosticsManager]: --- SERVER STARTED START ---
2015-05-17 14:28:48.736+0000 INFO [o.n.s.CommunityNeoServer]: Starting HTTP on port :7474 with 8 threads available
2015-05-17 14:28:48.872+0000 INFO [o.n.s.CommunityNeoServer]: Enabling HTTPS on port :7473
2015-05-17 14:28:48.989+0000 INFO [o.n.s.w.Jetty9WebServer]: Mounting static content at [/webadmin] from [webadmin-html]
2015-05-17 14:28:49.023+0000 INFO [o.n.s.w.Jetty9WebServer]: Mounting static content at [/browser] from [browser]
2015-05-17 14:28:49.956+0000 INFO [o.n.s.CommunityNeoServer]: Server started on: http://localhost:7474/
2015-05-17 14:28:49.956+0000 INFO [o.n.s.CommunityNeoServer]: Remote interface ready and available at [http://localhost:7474/]
2015-05-17 14:28:49.956+0000 INFO [o.n.k.i.DiagnosticsManager]: --- SERVER STARTED END ---
Class实体
@NodeEntity
public class FilterVersionChange extends UnitVersion {
@GraphId
private Long id;
public FilterVersionChange() {
super();
}
public FilterVersionChange(String description, Date creationDate)
{
super(description, creationDate);
}
@Relationship(type="CONTAINS", direction = Relationship.OUTGOING)
private Set<FilterState> filterStates;
@Relationship(type="PREVIOUS", direction = Relationship.OUTGOING)
private FilterVersionChange previousFilterVersionChange;
@Relationship(type="REFERENCES", direction = Relationship.OUTGOING)
private FilterVersionChange referencedFilterVersionChange;
@Relationship(type="ADDED", direction = Relationship.OUTGOING)
private Set<FilterState> newFilterStates;
@Relationship(type="DELETED", direction = Relationship.OUTGOING)
private Set<FilterState> deletedFilterStates;
@Relationship(type="MODIFIED", direction = Relationship.OUTGOING)
private Set<ModifiedUnitState> modifiedFilterStates;
public void contains(Set<FilterState> filterStates) {
this.filterStates = filterStates;
}
public void previous(FilterVersionChange previousFilterVersionChange) {
this.previousFilterVersionChange = previousFilterVersionChange;
}
public void references(FilterVersionChange referencedFilterVersionChange) {
this.referencedFilterVersionChange = referencedFilterVersionChange;
}
public void added(Set<FilterState> newFilterStates) {
this.newFilterStates = newFilterStates;
}
public void deleted(Set<FilterState> deletedFilterStates) {
this.deletedFilterStates = deletedFilterStates;
}
public void modified(Set<ModifiedUnitState> modifiedFilterStates) {
this.modifiedFilterStates = modifiedFilterStates;
}
}
存储库
@Repository
public interface FilterVersionRepository extends GraphRepository<FilterVersion> {
@Query("MATCH (project:Project {name:{0}})-[:HAS_FILTER_VERSION]->(filterVersion:FilterVersion {name:{1}}) RETURN filterVersion")
FilterVersion findFilterVersionByName(String projectName, String filterVersionName);
}
调用函数
public FilterVersionChange createNewFilterVersionChange(String projectName,
String filterVersionName,
String filterVersionChangeDescription,
Set<FilterState> filterStates)
{
FilterVersion filterVersion = filterVersionRepository.findFilterVersionByName(projectName, filterVersionName);
if(filterVersion != null)
{
for(FilterState filterState : filterStates)
{
Filter filter = new Filter(filterState.getMatchingString(), filterState.getMatchingType());
filterState.stateOf(filter);
}
Set<FilterVersionChange> filterVersionChanges = new HashSet<FilterVersionChange>();
FilterVersionChange filterVersionChange = new FilterVersionChange(filterVersionChangeDescription, new Date());
filterVersionChange.contains(filterStates);
filterVersionChange.added(filterStates);
filterVersionChanges.add(filterVersionChange);
filterVersion.tracks(filterVersionChanges);
filterVersionRepository.save(filterVersion);
return filterVersionChange;
}
else
{
return null;
}
}
FilterVersion.class
@NodeEntity
public class FilterVersion {
@GraphId
private Long id;
private String name;
private String description;
private Date creationDate;
public FilterVersion() {
}
public FilterVersion(String name, String description, Date creationDate) {
this.name = name;
this.description = description;
this.creationDate = creationDate;
}
@Relationship(type = "TRACKS", direction = Relationship.OUTGOING)
private Set<FilterVersionChange> filterVersionChanges;
@Relationship(type = "HAS_FILTER_VERSION", direction = Relationship.INCOMING)
private Project project;
public void setName(String name) {
this.name = name;
}
public void setDescription(String description) {
this.description = description;
}
public void setCreationDate(Date creationDate) {
this.creationDate = creationDate;
}
public void tracks(Set<FilterVersionChange> filterVersionChanges) {
this.filterVersionChanges = filterVersionChanges;
}
public void belongsTo(Project project) {
this.project = project;
}
public Project getProject() {
return project;
}
}
UnitVersion.class
@NodeEntity
public class UnitVersion {
@GraphId
protected Long id;
private String description;
private Long creationDate;
public UnitVersion() {
}
public UnitVersion(String description, Date creationDate) {
this.description = description;
this.creationDate = creationDate.getTime();
}
@Relationship(type = "MAPPED_ON", direction = Relationship.OUTGOING)
private UnitVersion unitVersion;
public void setDescription(String description) {
this.description = description;
}
public void setCreationDate(Date creationDate) {
this.creationDate = creationDate.getTime();
}
public void mappedOn(UnitVersion unitVersion) {
this.unitVersion = unitVersion;
}
}
如 InclusionPolicy 文档中所述，为 TimeTree 定义可能的标签的语法略有不同 https://github.com/graphaware/neo4j-framework/tree/master/common#inclusion-policies
语法如下：
com.graphaware.module.TT.event=hasLabel('StructureVersionChange')||hasLabel('RuleVersionChange')||hasLabel('FilterVersionChange')
出于调试目的，您可能需要将这些行添加到您的 conf/custom-logback.xml 文件中：
<appender name="EXTENSIONLOG" class="ch.qos.logback.core.FileAppender">
<file>data/log/extensions.log</file>
<encoder>
<pattern>%date{yyyy-MM-dd HH:mm:ss.SSSZ} %-5level [%logger{15}]: %message%n</pattern>
</encoder>
</appender>
<logger name="com.graphaware" level="debug">
<appender-ref ref="EXTENSIONLOG"/>
</logger>
并查看 extensions.log 文件
该依赖项仅在您以编程方式使用时间树时才有用。如果您的应用程序 运行ning 针对 Neo4j 服务器，那么您需要 download 并保存到您的 Neo4j 服务器插件目录：
a) GraphAware 框架（选择社区或企业）
b) TimeTree 模块
两者都可以从 http://graphaware.com/products/
下载
如果没有这个，即使使用 neo4j.properties 中的配置，GraphAware Runtime 也不会启动，时间树也不会工作。
如果您想通过测试运行您的代码，那么您需要包含 TimeTree 和 GraphAware 运行时的依赖项，并使用如下代码自行启动 GraphAware 运行时：
GraphAwareRuntime runtime = GraphAwareRuntimeFactory.createRuntime(getDatabase());
runtime.registerModule(new TimeTreeModule("timetree",
TimeTreeConfiguration
.defaultConfiguration()
.with(new NodeInclusionPolicy() {
@Override
public boolean include(Node node) {
return node.hasLabel(DynamicLabel.label("User"));
}
})
})
.withRelationshipType(DynamicRelationshipType.withName("CREATED_ON"))
.withTimeZone(DateTimeZone.forTimeZone(TimeZone.getTimeZone("GMT+1")))
.withTimestampProperty("createdOn")
.withResolution(Resolution.DAY)
,
getDatabase()));
runtime.start();
然后你可以编写测试如
@Test
public void shouldSaveUser()
{
User user = new User( "Michal" );
user.setCreatedOn(1431937636995l);
userRepository.save( user );
assertSameGraph( getDatabase(), "CREATE (u:User:Person {name:'Michal', createdOn:1431937636995})," +
"(root:TimeTreeRoot)," +
"(root)-[:FIRST]->(year:Year {value:2015})," +
"(root)-[:CHILD]->(year)," +
"(root)-[:LAST]->(year)," +
"(year)-[:FIRST]->(month:Month {value:5})," +
"(year)-[:CHILD]->(month)," +
"(year)-[:LAST]->(month)," +
"(month)-[:FIRST]->(day:Day {value:18})," +
"(month)-[:CHILD]->(day)," +
"(month)-[:LAST]->(day)," +
"(day)<-[:CREATED_ON]-(u)"
);
}
我正在尝试在我的 spring 数据 neo4j 4.0.0 项目中使用时间树库。
如本页所述，https://github.com/graphaware/neo4j-timetree，我编辑了我的 neo4j.properties 文件以启用自动事件附加，将时间树依赖项添加到我的 gradle，并设置 属性 'creationDate' 在具有 Long 数据类型的事件节点中。尽管一切看起来都应该如此，但它仍然没有创建任何时间树。
特此是我的neo4j.property文件：
# Runtime must be enabled like this
com.graphaware.runtime.enabled=true
# A Runtime module that takes care of attaching the events like this (TT is the ID of the module)
com.graphaware.module.TT.1=com.graphaware.module.timetree.module.TimeTreeModuleBootstrapper
# Nodes which represent events and should be attached automatically have to be defined
com.graphaware.module.TT.event=hasLabel('StructureVersionChange'),hasLabel('RuleVersionChange'),hasLabel('FilterVersionChange')
# Optionally, a property on the event nodes that represents the the time (long) at which the event took place must be specified (defaults to "timestamp")
com.graphaware.module.TT.timestamp=creationDate
# Optionally, a resolution can be specified (defaults to DAY)
com.graphaware.module.TT.resolution=SECOND
# Optionally, a time zone can be specified (defaults to UTC)
com.graphaware.module.TT.timezone=CEST
# Optionally, a relationship type with which the events will be attached to the tree can be specified (defaults to AT_TIME)
com.graphaware.module.TT.relationship=CREATED_ON
# autoAttach must be set to true
com.graphaware.module.TT.autoAttach=true
其实在这之前我的项目尝试过使用JAVAAPI版本的Timetree，但是后来真的被timetree构造函数的参数类型弄糊涂了，是Node。而在 spring 中，我的节点具有 类.
的类型提前致谢，非常感谢您的建议！
编辑：
neo4j.properties
# Runtime must be enabled like this
com.graphaware.runtime.enabled=true
# A Runtime module that takes care of attaching the events like this (TT is the ID of the module)
com.graphaware.module.TT.1=com.graphaware.module.timetree.module.TimeTreeModuleBootstrapper
# Nodes which represent events and should be attached automatically have to be defined
com.graphaware.module.TT.event=hasLabel('FilterVersionChange') || hasLabel('StructureVersionChange') || hasLabel('CodeUnitVersionChange') || hasLabel('RuleVersionChange') || hasLabel('EpisodeVersion')
# Optionally, a property on the event nodes that represents the the time (long) at which the event took place must be specified (defaults to "timestamp")
com.graphaware.module.TT.timestamp=creationDate
# Optionally, a resolution can be specified (defaults to DAY)
com.graphaware.module.TT.resolution=SECOND
# Optionally, a time zone can be specified (defaults to UTC)
com.graphaware.module.TT.timezone=CEST
# Optionally, a relationship type with which the events will be attached to the tree can be specified (defaults to AT_TIME)
com.graphaware.module.TT.relationship=CREATED_ON
# autoAttach must be set to true
com.graphaware.module.TT.autoAttach=true
data/log/neo4j.0.0
May 17, 2015 4:07:42 PM com.sun.jersey.server.impl.application.WebApplicationImpl _initiate
INFO: Initiating Jersey application, version 'Jersey: 1.18.1 02/19/2014 03:28 AM'
May 17, 2015 4:07:42 PM com.sun.jersey.server.impl.application.WebApplicationImpl _initiate
INFO: Initiating Jersey application, version 'Jersey: 1.18.1 02/19/2014 03:28 AM'
May 17, 2015 4:07:43 PM com.sun.jersey.server.impl.application.WebApplicationImpl _initiate
INFO: Initiating Jersey application, version 'Jersey: 1.18.1 02/19/2014 03:28 AM'
May 17, 2015 4:11:39 PM com.sun.jersey.server.impl.application.WebApplicationImpl _initiate
INFO: Initiating Jersey application, version 'Jersey: 1.18.1 02/19/2014 03:28 AM'
May 17, 2015 4:11:39 PM com.sun.jersey.server.impl.application.WebApplicationImpl _initiate
INFO: Initiating Jersey application, version 'Jersey: 1.18.1 02/19/2014 03:28 AM'
May 17, 2015 4:11:39 PM com.sun.jersey.server.impl.application.WebApplicationImpl _initiate
INFO: Initiating Jersey application, version 'Jersey: 1.18.1 02/19/2014 03:28 AM'
May 17, 2015 4:28:49 PM com.sun.jersey.server.impl.application.WebApplicationImpl _initiate
INFO: Initiating Jersey application, version 'Jersey: 1.18.1 02/19/2014 03:28 AM'
May 17, 2015 4:28:49 PM com.sun.jersey.server.impl.application.WebApplicationImpl _initiate
INFO: Initiating Jersey application, version 'Jersey: 1.18.1 02/19/2014 03:28 AM'
May 17, 2015 4:28:49 PM com.sun.jersey.server.impl.application.WebApplicationImpl _initiate
INFO: Initiating Jersey application, version 'Jersey: 1.18.1 02/19/2014 03:28 AM'
data/graph.db/messages
2015-05-17 14:28:46.537+0000 INFO [o.n.k.i.DiagnosticsManager]: --- INITIALIZED diagnostics START ---
2015-05-17 14:28:46.538+0000 INFO [o.n.k.i.DiagnosticsManager]: Neo4j Kernel properties:
2015-05-17 14:28:46.541+0000 INFO [o.n.k.i.DiagnosticsManager]: com.graphaware.module.TT.resolution=DAY
2015-05-17 14:28:46.541+0000 INFO [o.n.k.i.DiagnosticsManager]: com.graphaware.module.TT.timestamp=creationDate
2015-05-17 14:28:46.541+0000 INFO [o.n.k.i.DiagnosticsManager]: com.graphaware.module.TT.relationship=CREATED_ON
2015-05-17 14:28:46.541+0000 INFO [o.n.k.i.DiagnosticsManager]: com.graphaware.module.TT.event=hasLabel('FilterVersionChange') || hasLabel('ArchitectureUnitVersionChange') || hasLabel('CodeUnitVersionChange') || hasLabel('RuleVersionChange') || hasLabel('EpisodeVersion')
2015-05-17 14:28:46.541+0000 INFO [o.n.k.i.DiagnosticsManager]: store_dir=C:\NEO4J-~1.1\data\graph.db
2015-05-17 14:28:46.541+0000 INFO [o.n.k.i.DiagnosticsManager]: com.graphaware.runtime.enabled=true
2015-05-17 14:28:46.541+0000 INFO [o.n.k.i.DiagnosticsManager]: com.graphaware.module.TT.autoAttach=true
2015-05-17 14:28:46.541+0000 INFO [o.n.k.i.DiagnosticsManager]: remote_shell_enabled=true
2015-05-17 14:28:46.541+0000 INFO [o.n.k.i.DiagnosticsManager]: com.graphaware.module.TT.timezone=CEST
2015-05-17 14:28:46.541+0000 INFO [o.n.k.i.DiagnosticsManager]: com.graphaware.module.TT.1=com.graphaware.module.timetree.module.TimeTreeModuleBootstrapper
2015-05-17 14:28:46.544+0000 INFO [o.n.k.i.DiagnosticsManager]: Diagnostics providers:
2015-05-17 14:28:46.544+0000 INFO [o.n.k.i.DiagnosticsManager]: org.neo4j.kernel.configuration.Config
...
...
2015-05-17 14:28:48.656+0000 INFO [o.n.k.i.DiagnosticsManager]: --- STARTED diagnostics for KernelDiagnostics:StoreFiles END ---
2015-05-17 14:28:48.696+0000 INFO [o.n.k.EmbeddedGraphDatabase]: Database is now ready
2015-05-17 14:28:48.696+0000 INFO [o.n.s.d.LifecycleManagingDatabase]: Successfully started database
2015-05-17 14:28:48.699+0000 INFO [o.n.k.i.DiagnosticsManager]: --- SERVER STARTED START ---
2015-05-17 14:28:48.736+0000 INFO [o.n.s.CommunityNeoServer]: Starting HTTP on port :7474 with 8 threads available
2015-05-17 14:28:48.872+0000 INFO [o.n.s.CommunityNeoServer]: Enabling HTTPS on port :7473
2015-05-17 14:28:48.989+0000 INFO [o.n.s.w.Jetty9WebServer]: Mounting static content at [/webadmin] from [webadmin-html]
2015-05-17 14:28:49.023+0000 INFO [o.n.s.w.Jetty9WebServer]: Mounting static content at [/browser] from [browser]
2015-05-17 14:28:49.956+0000 INFO [o.n.s.CommunityNeoServer]: Server started on: http://localhost:7474/
2015-05-17 14:28:49.956+0000 INFO [o.n.s.CommunityNeoServer]: Remote interface ready and available at [http://localhost:7474/]
2015-05-17 14:28:49.956+0000 INFO [o.n.k.i.DiagnosticsManager]: --- SERVER STARTED END ---
Class实体
@NodeEntity
public class FilterVersionChange extends UnitVersion {
@GraphId
private Long id;
public FilterVersionChange() {
super();
}
public FilterVersionChange(String description, Date creationDate)
{
super(description, creationDate);
}
@Relationship(type="CONTAINS", direction = Relationship.OUTGOING)
private Set<FilterState> filterStates;
@Relationship(type="PREVIOUS", direction = Relationship.OUTGOING)
private FilterVersionChange previousFilterVersionChange;
@Relationship(type="REFERENCES", direction = Relationship.OUTGOING)
private FilterVersionChange referencedFilterVersionChange;
@Relationship(type="ADDED", direction = Relationship.OUTGOING)
private Set<FilterState> newFilterStates;
@Relationship(type="DELETED", direction = Relationship.OUTGOING)
private Set<FilterState> deletedFilterStates;
@Relationship(type="MODIFIED", direction = Relationship.OUTGOING)
private Set<ModifiedUnitState> modifiedFilterStates;
public void contains(Set<FilterState> filterStates) {
this.filterStates = filterStates;
}
public void previous(FilterVersionChange previousFilterVersionChange) {
this.previousFilterVersionChange = previousFilterVersionChange;
}
public void references(FilterVersionChange referencedFilterVersionChange) {
this.referencedFilterVersionChange = referencedFilterVersionChange;
}
public void added(Set<FilterState> newFilterStates) {
this.newFilterStates = newFilterStates;
}
public void deleted(Set<FilterState> deletedFilterStates) {
this.deletedFilterStates = deletedFilterStates;
}
public void modified(Set<ModifiedUnitState> modifiedFilterStates) {
this.modifiedFilterStates = modifiedFilterStates;
}
}
存储库
@Repository
public interface FilterVersionRepository extends GraphRepository<FilterVersion> {
@Query("MATCH (project:Project {name:{0}})-[:HAS_FILTER_VERSION]->(filterVersion:FilterVersion {name:{1}}) RETURN filterVersion")
FilterVersion findFilterVersionByName(String projectName, String filterVersionName);
}
调用函数
public FilterVersionChange createNewFilterVersionChange(String projectName,
String filterVersionName,
String filterVersionChangeDescription,
Set<FilterState> filterStates)
{
FilterVersion filterVersion = filterVersionRepository.findFilterVersionByName(projectName, filterVersionName);
if(filterVersion != null)
{
for(FilterState filterState : filterStates)
{
Filter filter = new Filter(filterState.getMatchingString(), filterState.getMatchingType());
filterState.stateOf(filter);
}
Set<FilterVersionChange> filterVersionChanges = new HashSet<FilterVersionChange>();
FilterVersionChange filterVersionChange = new FilterVersionChange(filterVersionChangeDescription, new Date());
filterVersionChange.contains(filterStates);
filterVersionChange.added(filterStates);
filterVersionChanges.add(filterVersionChange);
filterVersion.tracks(filterVersionChanges);
filterVersionRepository.save(filterVersion);
return filterVersionChange;
}
else
{
return null;
}
}
FilterVersion.class
@NodeEntity
public class FilterVersion {
@GraphId
private Long id;
private String name;
private String description;
private Date creationDate;
public FilterVersion() {
}
public FilterVersion(String name, String description, Date creationDate) {
this.name = name;
this.description = description;
this.creationDate = creationDate;
}
@Relationship(type = "TRACKS", direction = Relationship.OUTGOING)
private Set<FilterVersionChange> filterVersionChanges;
@Relationship(type = "HAS_FILTER_VERSION", direction = Relationship.INCOMING)
private Project project;
public void setName(String name) {
this.name = name;
}
public void setDescription(String description) {
this.description = description;
}
public void setCreationDate(Date creationDate) {
this.creationDate = creationDate;
}
public void tracks(Set<FilterVersionChange> filterVersionChanges) {
this.filterVersionChanges = filterVersionChanges;
}
public void belongsTo(Project project) {
this.project = project;
}
public Project getProject() {
return project;
}
}
UnitVersion.class
@NodeEntity
public class UnitVersion {
@GraphId
protected Long id;
private String description;
private Long creationDate;
public UnitVersion() {
}
public UnitVersion(String description, Date creationDate) {
this.description = description;
this.creationDate = creationDate.getTime();
}
@Relationship(type = "MAPPED_ON", direction = Relationship.OUTGOING)
private UnitVersion unitVersion;
public void setDescription(String description) {
this.description = description;
}
public void setCreationDate(Date creationDate) {
this.creationDate = creationDate.getTime();
}
public void mappedOn(UnitVersion unitVersion) {
this.unitVersion = unitVersion;
}
}
如 InclusionPolicy 文档中所述，为 TimeTree 定义可能的标签的语法略有不同 https://github.com/graphaware/neo4j-framework/tree/master/common#inclusion-policies
语法如下：
com.graphaware.module.TT.event=hasLabel('StructureVersionChange')||hasLabel('RuleVersionChange')||hasLabel('FilterVersionChange')
出于调试目的，您可能需要将这些行添加到您的 conf/custom-logback.xml 文件中：
<appender name="EXTENSIONLOG" class="ch.qos.logback.core.FileAppender">
<file>data/log/extensions.log</file>
<encoder>
<pattern>%date{yyyy-MM-dd HH:mm:ss.SSSZ} %-5level [%logger{15}]: %message%n</pattern>
</encoder>
</appender>
<logger name="com.graphaware" level="debug">
<appender-ref ref="EXTENSIONLOG"/>
</logger>
并查看 extensions.log 文件
该依赖项仅在您以编程方式使用时间树时才有用。如果您的应用程序 运行ning 针对 Neo4j 服务器，那么您需要 download 并保存到您的 Neo4j 服务器插件目录：
a) GraphAware 框架（选择社区或企业）
b) TimeTree 模块
两者都可以从 http://graphaware.com/products/
下载如果没有这个，即使使用 neo4j.properties 中的配置，GraphAware Runtime 也不会启动，时间树也不会工作。
如果您想通过测试运行您的代码，那么您需要包含 TimeTree 和 GraphAware 运行时的依赖项，并使用如下代码自行启动 GraphAware 运行时：
GraphAwareRuntime runtime = GraphAwareRuntimeFactory.createRuntime(getDatabase());
runtime.registerModule(new TimeTreeModule("timetree",
TimeTreeConfiguration
.defaultConfiguration()
.with(new NodeInclusionPolicy() {
@Override
public boolean include(Node node) {
return node.hasLabel(DynamicLabel.label("User"));
}
})
})
.withRelationshipType(DynamicRelationshipType.withName("CREATED_ON"))
.withTimeZone(DateTimeZone.forTimeZone(TimeZone.getTimeZone("GMT+1")))
.withTimestampProperty("createdOn")
.withResolution(Resolution.DAY)
,
getDatabase()));
runtime.start();
然后你可以编写测试如
@Test
public void shouldSaveUser()
{
User user = new User( "Michal" );
user.setCreatedOn(1431937636995l);
userRepository.save( user );
assertSameGraph( getDatabase(), "CREATE (u:User:Person {name:'Michal', createdOn:1431937636995})," +
"(root:TimeTreeRoot)," +
"(root)-[:FIRST]->(year:Year {value:2015})," +
"(root)-[:CHILD]->(year)," +
"(root)-[:LAST]->(year)," +
"(year)-[:FIRST]->(month:Month {value:5})," +
"(year)-[:CHILD]->(month)," +
"(year)-[:LAST]->(month)," +
"(month)-[:FIRST]->(day:Day {value:18})," +
"(month)-[:CHILD]->(day)," +
"(month)-[:LAST]->(day)," +
"(day)<-[:CREATED_ON]-(u)"
);
}