Package net.aifusion.metamodel

Class InMemoryRepository

java.lang.Object

net.aifusion.metamodel.InMemoryRepository

All Implemented Interfaces:

Repository

public class InMemoryRepository
extends Object
implements Repository

Simple in-memory cache for model objects. Supports a single namespace and no persistence.

Author:

Sharad Singhal

Constructor Summary

Constructors

Constructor	Description
InMemoryRepository()	Create an in-memory CIM repository using the default name space.
InMemoryRepository(NameSpacePath path)	Create an in-memory CIM repository using the given name space.

Method Summary

Modifier and Type	Method	Description
boolean	contains(ObjectPath path)	Check if a named element exists in the repository
boolean	delete(ObjectPath path)	Delete a named element from the repository
List<StructureValue>	filter(ObjectPath path, CimFilter filter)	Find all structure value instances based on some filter criteria
NamedElement	get(ObjectPath path)	Get a named element from the repository
List<NamedElement>	getElements(String elementTypes, String localNameSpaces, String elementNames, boolean locateSubTypes)	Get elements from this repository.
List<NameSpacePath>	getNameSpaces()	Get a list of all name spaces known to this repository.
boolean	put(NamedElement element)	Put a named element into the repository
void	shutdown()	Shut down the repository.

Methods inherited from class java.lang.Object

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

Constructor Details

InMemoryRepository

public InMemoryRepository()

Create an in-memory CIM repository using the default name space. This repository supports only the default namespace, and no persistence. Standard qualifier types are built-in, and do not have to be inserted in the repository

See Also:

• Constants.defaultNameSpacePath
• StandardQualifierType

InMemoryRepository

public InMemoryRepository(NameSpacePath path)

Create an in-memory CIM repository using the given name space. No persistence is supported. Standard qualifier types are built-in, and do not have to be inserted in the repository

Parameters:

path - - name space to be used in the repository. Must not be null.

See Also:

• StandardQualifierType

Method Details

put

public boolean put(NamedElement element)

Description copied from interface: Repository

Put a named element into the repository

Specified by:

put in interface Repository

Parameters:

element - - element to be added

Returns:

- true if successfully added, false otherwise

get

public NamedElement get(ObjectPath path)

Description copied from interface: Repository

Get a named element from the repository

Specified by:

get in interface Repository

Parameters:

path - - object path corresponding to the named element

Returns:

- Named Element corresponding to the element. Null returned if no such element exists in the repository

contains

public boolean contains(ObjectPath path)

Description copied from interface: Repository

Check if a named element exists in the repository

Specified by:

contains in interface Repository

Parameters:

path - - object path corresponding to the named element

Returns:

- true if the path exists in the repository, false otherwise

delete

public boolean delete(ObjectPath path)

Description copied from interface: Repository

Delete a named element from the repository

Specified by:

delete in interface Repository

Parameters:

path - - object path corresponding to the named element

Returns:

- true if deletion succeeded, false otherwise

shutdown

public void shutdown()

Description copied from interface: Repository

Shut down the repository. This method MUST be called before exiting to cleanly finish all pending tasks and release resources in the repository

Specified by:

shutdown in interface Repository

getNameSpaces

public List<NameSpacePath> getNameSpaces()

Description copied from interface: Repository

Get a list of all name spaces known to this repository. Note that because implementations can add or remove name spaces as elements are added or deleted, this list may not be complete, and depends on the repository implementation

Specified by:

getNameSpaces in interface Repository

Returns:

- list of name spaces

getElements

public List<NamedElement> getElements(String elementTypes,
 String localNameSpaces,
 String elementNames,
 boolean locateSubTypes)

Description copied from interface: Repository

Get elements from this repository. Depending on the size of the repository, this method can be very expensive in time and/or memory

Specified by:

getElements in interface Repository

Parameters:

elementTypes - - Optional comma separated list of element types to retrieve. Must be a NamedElement type (QualifierType, Enumeration, Interface, Structure, Class, StructureValue or Instance). A null will retrieve all types. Note that standard qualifier types are "built in" and are not returned by this method.

localNameSpaces - - Optional comma separated list of local name spaces to search. A null will retrieve elements from all name spaces

elementNames - - Optional comma-separated list of element names to retrieve. A null will retrieve all elements of the given type. For instances, all instances corresponding to the class name are returned

locateSubTypes - - if true, locate all subtypes of the given element types (e.g., all subclasses of the requested class).

Returns:

- list of elements that match the given criteria. An empty list is returned if no matching elements are found

See Also:

• ElementType

filter

public List<StructureValue> filter(ObjectPath path,
 CimFilter filter)

Description copied from interface: Repository

Find all structure value instances based on some filter criteria

Specified by:

filter in interface Repository

Parameters:

path - - object path to the structure to use

filter - - filter to apply

Returns:

- list of structureValues that pass the given filter. Empty list if none available