org.hawkular.agent.monitor.inventory

Class Instance<L,T extends AttributeLocationProvider<L>>

java.lang.Object

org.hawkular.agent.monitor.inventory.IDObject

org.hawkular.agent.monitor.inventory.NamedObject

org.hawkular.agent.monitor.inventory.AttributeLocationProvider<L>

org.hawkular.agent.monitor.inventory.Instance<L,T>

Direct Known Subclasses:

MeasurementInstance, ResourceConfigurationPropertyInstance

public abstract class Instance<L,T extends AttributeLocationProvider<L>>
extends AttributeLocationProvider<L>

An abstract supertype for MeasurementInstance and ResourceConfigurationPropertyInstance. Instances can be associated with a specific resource - see setResource(Resource). Once assigned a resource, an instance is owned by that resource for the instance's lifetime. You can use the copy constructor to create a copy of an instance and reassign that new instance to a new resource.

Author:

Peter Palaga

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	Instance(ID id, Name name, AttributeLocation<L> attributeLocation, T type)
protected	Instance(Instance<L,T> original, boolean disown) Copy constructor with the added feature of allowing the new copy to be "disowned" from any resource that the original instance was owned by.

Method Summary

Modifier and Type	Method and Description
Resource<L>	getResource()
T	getType()
void	setResource(Resource<L> resource)

Methods inherited from class org.hawkular.agent.monitor.inventory.AttributeLocationProvider

getAttributeLocation

Methods inherited from class org.hawkular.agent.monitor.inventory.NamedObject

getName

Methods inherited from class org.hawkular.agent.monitor.inventory.IDObject

addProperty, equals, getID, getProperties, hashCode, isPersisted, removeProperty, setPersisted, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

Instance

protected Instance(ID id,
                   Name name,
                   AttributeLocation<L> attributeLocation,
                   T type)

Instance

protected Instance(Instance<L,T> original,
                   boolean disown)

Copy constructor with the added feature of allowing the new copy to be "disowned" from any resource that the original instance was owned by. This allows one to create a copy of an instance and reassign it to a different owner resource.

Parameters:

original - the object to copy

disown - if true, the new copy will not have an owning resource. if false, the new instance will be owned by the same resource that owns the original.

Method Detail

getType

public T getType()

Returns:

the type of this Instance

setResource

public void setResource(Resource<L> resource)

Parameters:

resource - assigns this instance to the given resource which means the resource is now to be considered the "owner" of this instance.

getResource

public Resource<L> getResource()

Returns:

the resource that owns this instance, if one has been assigned

See Also:

Instance#assignToResource(Resource)