org.hawkular.inventory.api

Class EmptyInventory

java.lang.Object

org.hawkular.inventory.api.EmptyInventory

All Implemented Interfaces:

AutoCloseable, Inventory

public class EmptyInventory
extends Object
implements Inventory

This is more or a less a helper class to be used in cases where an implementor or a user would like to swap out the proper implementation with something that always returns empty result sets.

Since:

0.0.2

Author:

Lukas Krejci

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	EmptyInventory.EnvironmentReadWrite
static class	EmptyInventory.EnvironmentsMultiple
static class	EmptyInventory.EnvironmentsRead
static class	EmptyInventory.EnvironmentsSingle
static class	EmptyInventory.FeedsMultiple
static class	EmptyInventory.FeedsRead
static class	EmptyInventory.FeedsReadWrite
static class	EmptyInventory.FeedsSingle
static class	EmptyInventory.MetricsMultiple
static class	EmptyInventory.MetricsRead
static class	EmptyInventory.MetricsReadAssociate
static class	EmptyInventory.MetricsReadWrite
static class	EmptyInventory.MetricsSingle
static class	EmptyInventory.MetricTypesMultiple
static class	EmptyInventory.MetricTypesRead
static class	EmptyInventory.MetricTypesReadAssociate
static class	EmptyInventory.MetricTypesReadWrite
static class	EmptyInventory.MetricTypesSingle
static class	EmptyInventory.RelationshipsMultiple
static class	EmptyInventory.RelationshipsRead
static class	EmptyInventory.RelationshipsReadWrite
static class	EmptyInventory.RelationshipsSingle
static class	EmptyInventory.ResourcesMultiple
static class	EmptyInventory.ResourcesRead
static class	EmptyInventory.ResourcesReadWrite
static class	EmptyInventory.ResourcesSingle
static class	EmptyInventory.ResourceTypesMultiple
static class	EmptyInventory.ResourceTypesRead
static class	EmptyInventory.ResourceTypesReadWrite
static class	EmptyInventory.ResourceTypesSingle
static class	EmptyInventory.TenantsMultiple
static class	EmptyInventory.TenantsRead
static class	EmptyInventory.TenantsReadWrite
static class	EmptyInventory.TenantsSingle

Nested classes/interfaces inherited from interface org.hawkular.inventory.api.Inventory

Inventory.Mixin

Constructor Summary

Constructors

Constructor and Description
EmptyInventory()

Method Summary

Modifier and Type	Method and Description
void	close()
protected static <T> Page<T>	emptyPage(Pager pager)
protected static EntityNotFoundException	entityNotFound(Class<? extends Entity> entityClass)
void	initialize(Configuration configuration) Initializes the inventory from the provided configuration object.
Tenants.ReadWrite	tenants() Entry point into the inventory.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.hawkular.inventory.api.Inventory

augment, augment, augment, inspect, inspect, inspect, inspect, inspect, inspect, inspect, inspect

Constructor Detail

EmptyInventory

public EmptyInventory()

Method Detail

initialize

public void initialize(Configuration configuration)

Description copied from interface: Inventory

Initializes the inventory from the provided configuration object.

Specified by:

initialize in interface Inventory

Parameters:

configuration - the configuration to use.

close

public void close()
           throws Exception

Specified by:

close in interface AutoCloseable

Throws:

Exception

tenants

public Tenants.ReadWrite tenants()

Description copied from interface: Inventory

Entry point into the inventory. Select one (ResolvingToSingle.get(String)) or more (ResolvingToMultiple.getAll(org.hawkular.inventory.api.filters.Filter...)) tenants and navigate further to the entities of interest.

Specified by:

tenants in interface Inventory

Returns:

full CRUD and navigation interface to tenants

emptyPage

protected static <T> Page<T> emptyPage(Pager pager)

entityNotFound

protected static EntityNotFoundException entityNotFound(Class<? extends Entity> entityClass)