com.graphaware.runtime.metadata

Class GraphPropertiesMetadataRepository

java.lang.Object

com.graphaware.runtime.metadata.GraphPropertiesMetadataRepository

All Implemented Interfaces:

ModuleMetadataRepository

public class GraphPropertiesMetadataRepository
extends Object
implements ModuleMetadataRepository

ModuleMetadataRepository backed by a GraphProperties.

Constructor Summary

Constructors

Constructor and Description
GraphPropertiesMetadataRepository(org.neo4j.graphdb.GraphDatabaseService database, RuntimeConfiguration configuration, String propertyPrefix) Create a new repository.

Method Summary

Modifier and Type	Method and Description
Set<String>	getAllModuleIds() Get IDs of all modules, for which metadata has been persisted by this repository.
<M extends ModuleMetadata> M	getModuleMetadata(RuntimeModule module) Get the metadata of a module that has previously been presisted.
<M extends ModuleMetadata> M	getModuleMetadata(String moduleId) Get the metadata of a module that has previously been presisted.
protected String	moduleKey(String moduleId) Build a module key to use as a property on the metadata container for storing metadata.
<M extends ModuleMetadata> void	persistModuleMetadata(RuntimeModule module, M metadata) Persist metadata of a module.
<M extends ModuleMetadata> void	persistModuleMetadata(String moduleId, M metadata) Persist metadata of a module.
void	removeModuleMetadata(String moduleId) Remove persisted metadata for a module.

Methods inherited from class java.lang.Object

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

Constructor Detail

GraphPropertiesMetadataRepository

public GraphPropertiesMetadataRepository(org.neo4j.graphdb.GraphDatabaseService database,
                                         RuntimeConfiguration configuration,
                                         String propertyPrefix)

Create a new repository.

Parameters:

database - to back the repository.

configuration - of the runtime.

propertyPrefix - String with which the property keys of properties written by this repository will be prefixed.

Method Detail

getModuleMetadata

public <M extends ModuleMetadata> M getModuleMetadata(RuntimeModule module)

Get the metadata of a module that has previously been presisted.

Specified by:

getModuleMetadata in interface ModuleMetadataRepository

Type Parameters:

M - type of the metadata.

Parameters:

module - to get metadata for.

Returns:

module metadata, null if no such metadata exists. This happens, for example, when a module has never been registered and/or run before.

getModuleMetadata

public <M extends ModuleMetadata> M getModuleMetadata(String moduleId)

Get the metadata of a module that has previously been presisted.

Specified by:

getModuleMetadata in interface ModuleMetadataRepository

Type Parameters:

M - type of the metadata.

Parameters:

moduleId - to get metadata for.

Returns:

module metadata, null if no such metadata exists. This happens, for example, when a module has never been registered and/or run before.

persistModuleMetadata

public <M extends ModuleMetadata> void persistModuleMetadata(RuntimeModule module,
                                                             M metadata)

Persist metadata of a module.

Specified by:

persistModuleMetadata in interface ModuleMetadataRepository

Type Parameters:

M - type of the metadata.

Parameters:

module - for which to persist metadata.

metadata - to persist.

persistModuleMetadata

public <M extends ModuleMetadata> void persistModuleMetadata(String moduleId,
                                                             M metadata)

Persist metadata of a module.

Specified by:

persistModuleMetadata in interface ModuleMetadataRepository

Type Parameters:

M - type of the metadata.

Parameters:

moduleId - for which to persist metadata.

metadata - to persist.

getAllModuleIds

public Set<String> getAllModuleIds()

Get IDs of all modules, for which metadata has been persisted by this repository.

Specified by:

getAllModuleIds in interface ModuleMetadataRepository

Returns:

IDs of all modules.

removeModuleMetadata

public void removeModuleMetadata(String moduleId)

Remove persisted metadata for a module.

Specified by:

removeModuleMetadata in interface ModuleMetadataRepository

Parameters:

moduleId - ID of the module for which to remove previously persisted metadata. Nothing happens if no such metadata exists.

moduleKey

protected final String moduleKey(String moduleId)

Build a module key to use as a property on the metadata container for storing metadata.

Parameters:

moduleId - to build a key for.

Returns:

module key.