org.hawkular.inventory.api.model

Class AbstractElement<B extends AbstractElement.Blueprint,U extends AbstractElement.Update>

java.lang.Object

org.hawkular.inventory.api.model.AbstractElement<B,U>

Type Parameters:

B - the blueprint class. The blueprint is used to create a new element.

U - the update class. The update class is used to update the element.

Direct Known Subclasses:

Entity, Relationship

public abstract class AbstractElement<B extends AbstractElement.Blueprint,U extends AbstractElement.Update>
extends Object

A common super class of both entities and relationships.

Since:

0.0.1

Author:

Lukas Krejci

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	AbstractElement.Blueprint
static class	AbstractElement.Update
static class	AbstractElement.Updater<U extends AbstractElement.Update,E extends AbstractElement<?,U>>

Field Summary

Fields

Modifier and Type	Field and Description
static String	ID_PROPERTY
protected Map<String,Object>	properties

Method Summary

Modifier and Type	Method and Description
abstract <R,P> R	accept(ElementVisitor<R,P> visitor, P parameter) Accepts the provided visitor.
boolean	equals(Object o)
String	getId()
CanonicalPath	getPath()
Map<String,Object>	getProperties()
int	hashCode()
abstract AbstractElement.Updater<U,? extends AbstractElement<?,U>>	update()
protected static <T> T	valueOrDefault(T value, T defaultValue)

Methods inherited from class java.lang.Object

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

Field Detail

ID_PROPERTY

public static final String ID_PROPERTY

See Also:

Constant Field Values

properties

protected final Map<String,Object> properties

Method Detail

accept

public abstract <R,P> R accept(ElementVisitor<R,P> visitor,
                               P parameter)

Accepts the provided visitor.

Type Parameters:

R - the return type

P - the type of the parameter

Parameters:

visitor - the visitor to visit this entity

parameter - the parameter to pass on to the visitor

Returns:

the return value provided by the visitor

getPath

public CanonicalPath getPath()

Returns:

canonical path to the element

getId

public String getId()

Returns:

the id of the element.

getProperties

public Map<String,Object> getProperties()

Returns:

a map of arbitrary properties of this entity.

valueOrDefault

protected static <T> T valueOrDefault(T value,
                                      T defaultValue)

update

public abstract AbstractElement.Updater<U,? extends AbstractElement<?,U>> update()

Returns:

a new updater object to modify this entity and produce a new one.

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object