Package org.openhab.core.items.events

Class ItemEventFactory

java.lang.Object

org.openhab.core.events.AbstractEventFactory

org.openhab.core.items.events.ItemEventFactory

All Implemented Interfaces:

EventFactory

@NonNullByDefault
public class ItemEventFactory
extends AbstractEventFactory

An ItemEventFactory is responsible for creating item event instances, e.g. ItemCommandEvents and ItemStateEvents.

Author:

Stefan Bußweiler - Initial contribution

Constructor Summary

Constructors

Constructor	Description
ItemEventFactory()	Constructs a new ItemEventFactory.

Method Summary

Modifier and Type	Method	Description
static ItemAddedEvent	createAddedEvent(Item item)	Creates an item added event.
static ItemCommandEvent	createCommandEvent(String itemName, Command command)	Creates an item command event.
static ItemCommandEvent	createCommandEvent(String itemName, Command command, @Nullable String source)	Creates an item command event.
protected Event	createEventByType(String eventType, String topic, String payload, @Nullable String source)	Create a new event instance based on the event type.
static GroupItemStateChangedEvent	createGroupStateChangedEvent(String itemName, String memberName, State newState, State oldState)	Creates a group item state changed event.
static GroupStateUpdatedEvent	createGroupStateUpdatedEvent(String groupName, String member, State state, @Nullable String source)	Creates a group item state updated event.
static ItemRemovedEvent	createRemovedEvent(Item item)	Creates an item removed event.
static ItemStateChangedEvent	createStateChangedEvent(String itemName, State newState, State oldState)	Creates an item state changed event.
static ItemEvent	createStateEvent(String itemName, State state)	Creates an item state event.
static ItemStateEvent	createStateEvent(String itemName, State state, @Nullable String source)	Creates an item state event.
static ItemStatePredictedEvent	createStatePredictedEvent(String itemName, State state, boolean isConfirmation)	Creates an item state predicted event.
static ItemStateUpdatedEvent	createStateUpdatedEvent(String itemName, State state)	Creates an item state updated event.
static ItemStateUpdatedEvent	createStateUpdatedEvent(String itemName, State state, @Nullable String source)	Creates an item state updated event.
static ItemTimeSeriesEvent	createTimeSeriesEvent(String itemName, TimeSeries timeSeries, @Nullable String source)
static ItemTimeSeriesUpdatedEvent	createTimeSeriesUpdatedEvent(String itemName, TimeSeries timeSeries, @Nullable String source)
static ItemUpdatedEvent	createUpdateEvent(Item item, Item oldItem)	Creates an item updated event.

Methods inherited from class org.openhab.core.events.AbstractEventFactory

checkNotNull, checkNotNullOrEmpty, createEvent, deserializePayload, getSupportedEventTypes, getTopicElements, serializePayload

Methods inherited from class java.lang.Object

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

Constructor Details

ItemEventFactory

public ItemEventFactory()

Constructs a new ItemEventFactory.

Method Details

createEventByType

protected Event createEventByType(String eventType,
 String topic,
 String payload,
 @Nullable String source)
                           throws Exception

Description copied from class: AbstractEventFactory

Create a new event instance based on the event type.

Specified by:

createEventByType in class AbstractEventFactory

Parameters:

eventType - the event type

topic - the topic

payload - the payload

source - the source, can be null

Returns:

the created event instance

Throws:

Exception - if the creation of the event fails

createCommandEvent

public static ItemCommandEvent createCommandEvent(String itemName,
 Command command,
 @Nullable String source)

Creates an item command event.

Parameters:

itemName - the name of the item to send the command for

command - the command to send

source - the name of the source identifying the sender (can be null)

Returns:

the created item command event

Throws:

IllegalArgumentException - if itemName or command is null

createCommandEvent

public static ItemCommandEvent createCommandEvent(String itemName,
 Command command)

Creates an item command event.

Parameters:

itemName - the name of the item to send the command for

command - the command to send

Returns:

the created item command event

Throws:

IllegalArgumentException - if itemName or command is null

createStateEvent

public static ItemStateEvent createStateEvent(String itemName,
 State state,
 @Nullable String source)

Creates an item state event.

Parameters:

itemName - the name of the item to send the state update for

state - the new state to send

source - the name of the source identifying the sender (can be null)

Returns:

the created item state event

Throws:

IllegalArgumentException - if itemName or state is null

createStateEvent

public static ItemEvent createStateEvent(String itemName,
 State state)

Creates an item state event.

Parameters:

itemName - the name of the item to send the state update for

state - the new state to send

Returns:

the created item state event

Throws:

IllegalArgumentException - if itemName or state is null

createStateUpdatedEvent

public static ItemStateUpdatedEvent createStateUpdatedEvent(String itemName,
 State state)

Creates an item state updated event.

Parameters:

itemName - the name of the item to report the state update for

state - the new state

Returns:

the created item state update event

Throws:

IllegalArgumentException - if itemName or state is null

createStateUpdatedEvent

public static ItemStateUpdatedEvent createStateUpdatedEvent(String itemName,
 State state,
 @Nullable String source)

Creates an item state updated event.

Parameters:

itemName - the name of the item to report the state update for

state - the new state

source - the name of the source identifying the sender (can be null)

Returns:

the created item state update event

Throws:

IllegalArgumentException - if itemName or state is null

createTimeSeriesEvent

public static ItemTimeSeriesEvent createTimeSeriesEvent(String itemName,
 TimeSeries timeSeries,
 @Nullable String source)

createTimeSeriesUpdatedEvent

public static ItemTimeSeriesUpdatedEvent createTimeSeriesUpdatedEvent(String itemName,
 TimeSeries timeSeries,
 @Nullable String source)

createGroupStateUpdatedEvent

public static GroupStateUpdatedEvent createGroupStateUpdatedEvent(String groupName,
 String member,
 State state,
 @Nullable String source)

Creates a group item state updated event.

Parameters:

groupName - the name of the group to report the state update for

member - the name of the item that updated the group state

state - the new state

source - the name of the source identifying the sender (can be null)

Returns:

the created group item state update event

Throws:

IllegalArgumentException - if groupName or state is null

createStatePredictedEvent

public static ItemStatePredictedEvent createStatePredictedEvent(String itemName,
 State state,
 boolean isConfirmation)

Creates an item state predicted event.

Parameters:

itemName - the name of the item to send the state update for

state - the predicted state to send

isConfirmation - whether this is a confirmation of a previous state

Returns:

the created item state predicted event

Throws:

IllegalArgumentException - if itemName or state is null

createStateChangedEvent

public static ItemStateChangedEvent createStateChangedEvent(String itemName,
 State newState,
 State oldState)

Creates an item state changed event.

Parameters:

itemName - the name of the item to send the state changed event for

newState - the new state to send

oldState - the old state of the item

Returns:

the created item state changed event

Throws:

IllegalArgumentException - if itemName or state is null

createGroupStateChangedEvent

public static GroupItemStateChangedEvent createGroupStateChangedEvent(String itemName,
 String memberName,
 State newState,
 State oldState)

Creates a group item state changed event.

Parameters:

itemName - the name of the group item to send the state changed event for

memberName - the name of the member causing the group item state change

newState - the new state to send

oldState - the old state of the group item

Returns:

the created group item state changed event

Throws:

IllegalArgumentException - if itemName or state is null

createAddedEvent

public static ItemAddedEvent createAddedEvent(Item item)

Creates an item added event.

Parameters:

item - the item

Returns:

the created item added event

Throws:

IllegalArgumentException - if item is null

createRemovedEvent

public static ItemRemovedEvent createRemovedEvent(Item item)

Creates an item removed event.

Parameters:

item - the item

Returns:

the created item removed event

Throws:

IllegalArgumentException - if item is null

createUpdateEvent

public static ItemUpdatedEvent createUpdateEvent(Item item,
 Item oldItem)

Creates an item updated event.

Parameters:

item - the item

oldItem - the old item

Returns:

the created item updated event

Throws:

IllegalArgumentException - if item or oldItem is null